{"id":727,"date":"2016-01-22T13:23:24","date_gmt":"2016-01-22T05:23:24","guid":{"rendered":"https:\/\/www.ray650128.com\/wordpress\/?p=609"},"modified":"2016-01-22T13:23:24","modified_gmt":"2016-01-22T05:23:24","slug":"android%e8%bd%89%e8%bc%89-android%e6%a8%a3%e5%bc%8f%e7%9a%84%e9%96%8b%e7%99%bcproperty-animation%e7%af%87","status":"publish","type":"post","link":"https:\/\/blog.ray650128.com\/?p=727","title":{"rendered":"[Android]\u8f49\u8f09-Android\u6a23\u5f0f\u7684\u958b\u767c:Property Animation\u7bc7"},"content":{"rendered":"<p><span class=\"md_line\">\u8f49\u8f09\u81ea<a class=\"md_compiled\" href=\"http:\/\/keeganlee.me\/\">Keegan\u5c0f\u92fc<\/a><\/span><\/p>\n<p><span class=\"md_line\">\u539f\u6587\u93c8\u63a5\uff1a<a href=\"http:\/\/keeganlee.me\/post\/android\/20151026\" target=\"_blank\" rel=\"noopener\"><strong>http:\/\/keeganlee.me\/post\/android\/20151026<\/strong><\/a><\/span><\/p>\n<p class=\"md_block\"><span class=\"md_line\">\u524d\u7bc7\u6587\u7ae0\u8aaa\u904e\uff0cAndroid\u6846\u67b6\u9084\u63d0\u4f9b\u4e86\u5169\u7a2e\u52d5\u756b\u9ad4\u7cfb\uff0c\u524d\u4e00\u7bc7\u5df2\u7d93\u7e3d\u7d50\u4e86<a class=\"md_compiled\" href=\"http:\/\/keeganlee.me\/post\/android\/20151003\">\u8996\u5716\u52d5\u756b(View Animation)<\/a><strong>\u7684\u7528\u6cd5\uff0c\u672c\u7bc7\u5247\u63a5\u8457\u7e3d\u7d50\u53e6\u4e00\u7a2e\u52d5\u756b\u9ad4\u7cfb\u2014\u2014<\/strong>\u5c6c\u6027\u52d5\u756b(Property Animation)\u7684\u7528\u6cd5\u3002<\/span><\/p>\n<p class=\"md_block\"><span class=\"md_line\">\u8996\u5716\u52d5\u756b\u53ea\u80fd\u4f5c\u7528\u65bcView\uff0c\u800c\u4e14\u8996\u5716\u52d5\u756b\u6539\u8b8a\u7684\u53ea\u662fView\u7684\u7e6a\u88fd\u6548\u679c\uff0cView\u771f\u6b63\u7684\u5c6c\u6027\u4e26\u6c92\u6709\u6539\u8b8a\u3002\u6bd4\u5982\uff0c\u4e00\u500b\u6309\u9215\u505a\u5e73\u79fb\u7684\u52d5\u756b\uff0c\u96d6\u7136\u6309\u9215\u7684\u78ba\u505a\u4e86\u5e73\u79fb\uff0c\u4f46\u6309\u9215\u53ef\u9ede\u64ca\u7684\u5340\u57df\u4e26\u6c92\u96a8\u8457\u5e73\u79fb\u800c\u6539\u8b8a\uff0c\u9084\u662f\u5728\u539f\u4f86\u7684\u4f4d\u7f6e\u3002\u800c\u5c6c\u6027\u52d5\u756b\u5247\u53ef\u4ee5\u6539\u8b8a\u771f\u6b63\u7684\u5c6c\u6027\uff0c\u5f9e\u800c\u5be6\u73fe\u6309\u9215\u5e73\u79fb\u6642\u9ede\u64ca\u5340\u57df\u4e5f\u8ddf\u8457\u5e73\u79fb\u3002<strong>\u901a\u4fd7\u9ede\u8aaa\uff0c\u5c6c\u6027\u52d5\u756b\u5176\u5be6\u5c31\u662f\u5728\u4e00\u5b9a\u6642\u9593\u5167\uff0c\u6309\u7167\u4e00\u5b9a\u898f\u5f8b\u4f86\u6539\u8b8a\u5c0d\u8c61\u7684\u5c6c\u6027\uff0c\u5f9e\u800c\u4f7f\u5c0d\u8c61\u5c55\u73fe\u51fa\u52d5\u756b\u6548\u679c\u3002<\/strong><\/span><\/p>\n<p class=\"md_block\"><span class=\"md_line\">\u5c6c\u6027\u52d5\u756b\u662f\u5728android 3.0\u5f15\u5165\u7684\u52d5\u756b\u9ad4\u7cfb\uff0c\u5982\u679c\u9084\u60f3\u9069\u914d\u57fa\u672c\u5df2\u7d93\u6ec5\u7d55\u76842.x\u7248\u672c\uff0c\u53ea\u597d\u7e5e\u9053\u4e86\u3002<\/span> <span class=\"md_line\">\u5c6c\u6027\u52d5\u756b\u548c\u8996\u5716\u52d5\u756b\u4e00\u6a23\uff0c\u53ef\u4ee5\u901a\u904exml\u6587\u4ef6\u5b9a\u7fa9\uff0c\u4e0d\u540c\u7684\u662f\uff0c\u8996\u5716\u52d5\u756b\u7684xml\u6587\u4ef6\u653e\u65bc<strong>res\/anim\/<\/strong>\u76ee\u9304\u4e0b\uff0c\u800c\u5c6c\u6027\u52d5\u756b\u7684xml\u6587\u4ef6\u5247\u653e\u65bc<strong>res\/animator\/<\/strong>\u76ee\u9304\u4e0b\u3002\u4e00\u500b\u662f<strong>anim<\/strong>\uff0c\u4e00\u500b\u662f<strong>animator<\/strong>\uff0c\u5225\u641e\u932f\u4e86\u3002\u540c\u6a23\u7684\uff0c\u5728Java\u7a0b\u5f0f\u78bc\u88e1\u5f15\u7528\u5c6c\u6027\u52d5\u756b\u7684xml\u6587\u4ef6\u6642\uff0c\u5247\u7528<strong>R.animator.filename<\/strong>\uff0c\u4e0d\u540c\u65bc\u8996\u5716\u52d5\u756b\uff0c\u5f15\u7528\u6642\u70ba<strong>R.anim.filename<\/strong>\u3002<\/span><\/p>\n<p class=\"md_block\"><span class=\"md_line\">\u5c6c\u6027\u52d5\u756b\u4e3b\u8981\u6709\u4e09\u500b\u5143\u7d20\uff1a&lt;animator&gt;<strong>\u3001<\/strong>&lt;objectAnimator&gt;<strong>\u3001<\/strong>&lt;set&gt;<strong>\u3002<\/strong><\/span><strong> <span class=\"md_line\">\u76f8\u5c0d\u61c9\u7684\u6709\u4e09\u500b\u985e\uff1a<\/span><\/strong>ValueAnimator<strong>\u3001ObjectAnimator\u3001<\/strong>AnimatorSet<strong>\u3002<br \/>\n<span class=\"md_line\">ValueAnimator\u662f\u57fa\u672c\u7684\u52d5\u756b\u985e\uff0c\u8655\u7406\u503c\u52d5\u756b\uff0c\u901a\u904e\u76e3\u807d\u67d0\u4e00\u503c\u7684\u8b8a\u5316\uff0c\u9032\u884c\u76f8\u61c9\u7684\u64cd\u4f5c\u3002ObjectAnimator\u662f<\/span><\/strong>ValueAnimator**\u7684\u5b50\u985e\uff0c\u8655\u7406\u5c0d\u8c61\u52d5\u756b\u3002<strong>AnimatorSet<\/strong>\u5247\u70ba\u52d5\u756b\u96c6\uff0c\u53ef\u4ee5\u7d44\u5408\u53e6\u5916\u5169\u7a2e\u52d5\u756b\u6216\u52d5\u756b\u96c6\u3002\u76f8\u61c9\u7684\u4e09\u500b\u6a19\u7c64\u5143\u7d20\u7684\u95dc\u4fc2\u4e5f\u4e00\u6a23\u3002<br \/>\n<span class=\"md_line\">\u6a23\u5f0f\u958b\u767c\u4e3b\u8981\u9084\u662f\u7528xml\u7684\u5f62\u5f0f\uff0c\u6240\u4ee5\u9019\u88e1\u4e3b\u8981\u9084\u662f\u8b1b\u6a19\u7c64\u7684\u7528\u6cd5\u3002<\/span><\/p>\n<h1 id=\"toc_0\">&lt;animator&gt;<\/h1>\n<p class=\"md_block md_has_block_below md_has_block_below_ol\"><span class=\"md_line\"><strong>&lt;animator&gt;<\/strong>\u6a19\u7c64\u8207\u5c0d\u61c9\u7684<strong>ValueAnimator<\/strong>\u985e\u63d0\u4f9b\u4e86\u5c6c\u6027\u52d5\u756b\u7684\u6838\u5fc3\u529f\u80fd\uff0c\u5305\u62ec\u8a08\u7b97\u52d5\u756b\u503c\u3001\u52d5\u756b\u6642\u9593\u7d30\u7bc0\u3001\u662f\u5426\u91cd\u8907\u7b49\u3002\u57f7\u884c\u5c6c\u6027\u52d5\u756b\u5206\u5169\u500b\u6b65\u9a5f\uff1a<\/span><\/p>\n<ol>\n<li class=\"md_li\">\u8a08\u7b97\u52d5\u756b\u503c<\/li>\n<li class=\"md_li\">\u5c07\u52d5\u756b\u503c\u61c9\u7528\u5230\u5c0d\u8c61\u548c\u5c6c\u6027\u4e0a<\/li>\n<\/ol>\n<p class=\"md_block md_has_block_below md_has_block_below_ul\"><span class=\"md_line\"><strong>ValuAnimiator<\/strong>\u53ea\u5b8c\u6210\u7b2c\u4e00\u6b65\uff0c\u5373\u53ea\u8a08\u7b97\u503c\uff0c\u8981\u5be6\u73fe\u7b2c\u4e8c\u6b65\u5247\u9700\u8981\u5728\u503c\u8b8a\u5316\u7684\u76e3\u807d\u5668\u88e1\u81ea\u884c\u66f4\u65b0\u5c0d\u8c61\u5c6c\u6027\u3002<\/span> <span class=\"md_line\">\u901a\u904e&lt;animator&gt;<strong>\u6a19\u7c64\u53ef\u4ee5\u5f88\u65b9\u4fbf\u7684\u5c0d<\/strong>ValuAnimiator**\u9032\u884c\u8a2d\u7f6e\uff0c\u53ef\u8a2d\u7f6e\u7684\u5c6c\u6027\u5982\u4e0b\uff1a<\/span><\/p>\n<ul>\n<li class=\"md_li\"><strong>android:duration<\/strong> \u52d5\u756b\u5f9e\u958b\u59cb\u5230\u7d50\u675f\u6301\u7e8c\u7684\u6642\u9577\uff0c\u55ae\u4f4d\u70ba\u6beb\u79d2<\/li>\n<li class=\"md_li\"><strong>android:startOffset<\/strong> \u8a2d\u7f6e\u52d5\u756b\u57f7\u884c\u4e4b\u524d\u7684\u7b49\u5f85\u6642\u9577\uff0c\u55ae\u4f4d\u70ba\u6beb\u79d2<\/li>\n<li class=\"md_li\"><strong>android:repeatCount<\/strong> \u8a2d\u7f6e\u52d5\u756b\u91cd\u8907\u57f7\u884c\u7684\u6b21\u6578\uff0c\u9ed8\u8a8d\u70ba0\uff0c\u5373\u4e0d\u91cd\u8907\uff1b\u53ef\u8a2d\u70ba-1\u6216infinite\uff0c\u8868\u793a\u7121\u9650\u91cd\u8907<\/li>\n<li class=\"md_li\"><strong>android:repeatMode<\/strong> \u8a2d\u7f6e\u52d5\u756b\u91cd\u8907\u57f7\u884c\u7684\u6a21\u5f0f\uff0c\u53ef\u8a2d\u70ba\u4ee5\u4e0b\u5169\u500b\u503c\u5176\u4e2d\u4e4b\u4e00\uff1a\n<ul>\n<li class=\"md_li\"><em>restart<\/em> \u52d5\u756b\u91cd\u8907\u57f7\u884c\u6642\u5f9e\u8d77\u9ede\u958b\u59cb\uff0c\u9ed8\u8a8d\u70ba\u8a72\u503c<\/li>\n<li class=\"md_li\"><em>reverse<\/em> \u52d5\u756b\u6703\u53cd\u65b9\u5411\u57f7\u884c<\/li>\n<\/ul>\n<\/li>\n<li class=\"md_li\"><strong>android:valueFrom<\/strong> \u52d5\u756b\u958b\u59cb\u7684\u503c\uff0c\u53ef\u4ee5\u70baint\u503c\u3001float\u503c\u6216color\u503c<\/li>\n<li class=\"md_li\"><strong>android:valueTo<\/strong> \u52d5\u756b\u7d50\u675f\u7684\u503c\uff0c\u53ef\u4ee5\u70baint\u503c\u3001float\u503c\u6216color\u503c<\/li>\n<li class=\"md_li\"><strong>android:valueType<\/strong> \u52d5\u756b\u503c\u985e\u578b\uff0c\u82e5\u70bacolor\u503c\uff0c\u5247\u7121\u9700\u8a2d\u7f6e\u8a72\u5c6c\u6027\n<ul>\n<li class=\"md_li\"><em>intType<\/em> \u6307\u5b9a\u52d5\u756b\u503c\uff0c\u5373\u4ee5\u4e0a\u5169\u500bvalue\u5c6c\u6027\u7684\u503c\u70ba\u6574\u578b<\/li>\n<li class=\"md_li\"><em>floatType<\/em> \u6307\u5b9a\u52d5\u756b\u503c\uff0c\u5373\u4ee5\u4e0a\u5169\u500bvalue\u5c6c\u6027\u7684\u503c\u70ba\u6d6e\u9ede\u578b\uff0c\u9ed8\u8a8d\u503c<\/li>\n<\/ul>\n<\/li>\n<li class=\"md_li\"><strong>android:interpolator<\/strong> \u8a2d\u7f6e\u52d5\u756b\u901f\u7387\u7684\u8b8a\u5316\uff0c\u6bd4\u5982\u52a0\u901f\u3001\u6e1b\u901f\u3001\u52fb\u901f\u7b49\uff0c\u9700\u8981\u6307\u5b9aInterpolator\u8cc7\u6e90\u3002\u5177\u9ad4\u7528\u6cd5\u5728<a class=\"md_compiled\" href=\"http:\/\/keeganlee.me\/post\/android\/20151003\">View Animation\u7bc7<\/a>\u5df2\u7d93\u8b1b\u904e\uff0c\u9019\u88e1\u4e0d\u518d\u91cd\u8907<\/li>\n<\/ul>\n<p class=\"md_block\"><span class=\"md_line\">\u63a5\u8457\uff0c\u7528\u4e00\u500b\u5be6\u4f8b\u8b1b\u89e3\u5177\u9ad4\u7684\u7528\u6cd5\u5427\u3002\u5728\u9019\u500b\u4f8b\u5b50\u88e1\uff0c\u5c07\u4e00\u500b\u6309\u9215\u7684\u5bec\u5ea6\u9032\u884c\u7e2e\u653e\uff0c\u5f9e100%\u7e2e\u653e\u523020%\u3002<\/span> <span class=\"md_line\">xml\u6587\u4ef6\u7684\u7a0b\u5f0f\u78bc\u5982\u4e0b\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_xml  highlight\">\n<pre><span class=\"c\">&lt;!-- res\/animator\/value_animator.xml --&gt;<\/span>\n<span class=\"cp\">&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;<\/span>\n<span class=\"nt\">&lt;animator<\/span> <span class=\"na\">xmlns:android=<\/span><span class=\"s\">\"http:\/\/schemas.android.com\/apk\/res\/android\"<\/span>\n    <span class=\"na\">android:duration=<\/span><span class=\"s\">\"3000\"<\/span>\n    <span class=\"na\">android:valueFrom=<\/span><span class=\"s\">\"100\"<\/span>\n    <span class=\"na\">android:valueTo=<\/span><span class=\"s\">\"20\"<\/span>\n    <span class=\"na\">android:valueType=<\/span><span class=\"s\">\"intType\"<\/span> <span class=\"nt\">\/&gt;<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\">\u53ef\u770b\u5230\uff0c\u503c\u7684\u8b8a\u5316\u5f9e100\u523020\uff0c\u52d5\u756b\u6642\u95773000\u6beb\u79d2\uff0c\u4ee5\u4e0b\u5247\u662f\u76ee\u6a19\u6309\u9215\u7684xml\u7a0b\u5f0f\u78bc\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_xml  highlight\">\n<pre><span class=\"nt\">&lt;Button<\/span>\n    <span class=\"na\">android:layout_width=<\/span><span class=\"s\">\"match_parent\"<\/span>\n    <span class=\"na\">android:layout_height=<\/span><span class=\"s\">\"wrap_content\"<\/span>\n    <span class=\"na\">android:background=<\/span><span class=\"s\">\"@drawable\/bg_btn_normal\"<\/span>\n    <span class=\"na\">android:onClick=<\/span><span class=\"s\">\"onScaleWidth\"<\/span>\n    <span class=\"na\">android:text=<\/span><span class=\"s\">\"\u9ede\u6211\"<\/span>\n    <span class=\"na\">android:textColor=<\/span><span class=\"s\">\"@android:color\/white\"<\/span> <span class=\"nt\">\/&gt;<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\">\u6309\u9215\u9ed8\u8a8d\u662f\u586b\u5145\u87a2\u5e55\u5bec\u5ea6\u7684\uff0c\u9ede\u64ca\u6642\u7684\u57f7\u884c\u65b9\u6cd5\u70baonScaleWidth\uff0c\u4ee5\u4e0b\u5247\u662fonScaleWidth\u65b9\u6cd5\u7684\u7a0b\u5f0f\u78bc\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_java  highlight\">\n<pre><span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">onScaleWidth<\/span><span class=\"o\">(<\/span><span class=\"kd\">final<\/span> <span class=\"n\">View<\/span> <span class=\"n\">view<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n    <span class=\"c1\">\/\/ \u7372\u53d6\u87a2\u5e55\u5bec\u5ea6<\/span>\n    <span class=\"kd\">final<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">maxWidth<\/span> <span class=\"o\">=<\/span> <span class=\"n\">getWindowManager<\/span><span class=\"o\">().<\/span><span class=\"na\">getDefaultDisplay<\/span><span class=\"o\">().<\/span><span class=\"na\">getWidth<\/span><span class=\"o\">();<\/span>\n    <span class=\"n\">ValueAnimator<\/span> <span class=\"n\">valueAnimator<\/span> <span class=\"o\">=<\/span> <span class=\"o\">(<\/span><span class=\"n\">ValueAnimator<\/span><span class=\"o\">)<\/span> <span class=\"n\">AnimatorInflater<\/span><span class=\"o\">.<\/span><span class=\"na\">loadAnimator<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">,<\/span> <span class=\"n\">R<\/span><span class=\"o\">.<\/span><span class=\"na\">animator<\/span><span class=\"o\">.<\/span><span class=\"na\">value_animator<\/span><span class=\"o\">);<\/span>\n    <span class=\"n\">valueAnimator<\/span><span class=\"o\">.<\/span><span class=\"na\">addUpdateListener<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"n\">ValueAnimator<\/span><span class=\"o\">.<\/span><span class=\"na\">AnimatorUpdateListener<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\n        <span class=\"nd\">@Override<\/span>\n        <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">onAnimationUpdate<\/span><span class=\"o\">(<\/span><span class=\"n\">ValueAnimator<\/span> <span class=\"n\">animator<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n            <span class=\"c1\">\/\/ \u7576\u524d\u52d5\u756b\u503c\uff0c\u5373\u70ba\u7576\u524d\u5bec\u5ea6\u6bd4\u4f8b\u503c<\/span>\n            <span class=\"kt\">int<\/span> <span class=\"n\">currentValue<\/span> <span class=\"o\">=<\/span> <span class=\"o\">(<\/span><span class=\"n\">Integer<\/span><span class=\"o\">)<\/span> <span class=\"n\">animator<\/span><span class=\"o\">.<\/span><span class=\"na\">getAnimatedValue<\/span><span class=\"o\">();<\/span>\n            <span class=\"c1\">\/\/ \u6839\u64da\u6bd4\u4f8b\u66f4\u6539\u76ee\u6a19view\u7684\u5bec\u5ea6<\/span>\n            <span class=\"n\">view<\/span><span class=\"o\">.<\/span><span class=\"na\">getLayoutParams<\/span><span class=\"o\">().<\/span><span class=\"na\">width<\/span> <span class=\"o\">=<\/span> <span class=\"n\">maxWidth<\/span> <span class=\"o\">*<\/span> <span class=\"n\">currentValue<\/span> <span class=\"o\">\/<\/span> <span class=\"mi\">100<\/span><span class=\"o\">;<\/span>\n            <span class=\"n\">view<\/span><span class=\"o\">.<\/span><span class=\"na\">requestLayout<\/span><span class=\"o\">();<\/span>\n        <span class=\"o\">}<\/span>\n    <span class=\"o\">});<\/span>\n    <span class=\"n\">valueAnimator<\/span><span class=\"o\">.<\/span><span class=\"na\">start<\/span><span class=\"o\">();<\/span>\n<span class=\"o\">}<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\">\u5f9e<a class=\"md_compiled\" href=\"http:\/\/keeganlee.me\/post\/android\/20151003\">View Animation\u7bc7<\/a><strong>\u4e2d\u5df2\u7d93\u77e5\u9053\uff0c\u8996\u5716\u52d5\u756b\u662f\u901a\u904e<\/strong>AnimationUtils**\u985e\u7684<strong>loadAnimation()<\/strong>\u65b9\u6cd5\u7372\u53d6xml\u6587\u4ef6\u76f8\u5c0d\u61c9\u7684<strong>Animation<\/strong>\u985e\u5be6\u4f8b\uff0c\u800c\u5c6c\u6027\u52d5\u756b\u5247\u662f\u901a\u904e<strong>AnimatorInflater<\/strong>\u985e\u7684<strong>loadAnimation()<\/strong>\u65b9\u6cd5\u7372\u53d6\u76f8\u61c9\u7684<strong>Animator<\/strong>\u985e\u5be6\u4f8b\u3002<\/span> <span class=\"md_line\">\u53e6\u5916\uff0c<strong>ValueAnimator<\/strong>\u901a\u904e\u6dfb\u52a0AnimatorUpdateListener\u76e3\u807d\u5668\u76e3\u807d\u503c\u7684\u8b8a\u5316\uff0c\u5f9e\u800c\u518d\u624b\u52d5\u66f4\u65b0\u76ee\u6a19\u5c0d\u8c61\u7684\u5c6c\u6027\u3002<\/span> <span class=\"md_line\">\u6700\u5f8c\uff0c\u901a\u904e\u8abf\u7528<strong>valueAnimator.start()<\/strong>\u65b9\u6cd5\u555f\u52d5\u52d5\u756b\u3002<\/span><\/p>\n<h1 id=\"toc_1\">&lt;objectAnimator&gt;<\/h1>\n<p class=\"md_block md_has_block_below md_has_block_below_ul\"><span class=\"md_line\"><strong>&lt;objectAnimator&gt;<\/strong>\u6a19\u7c64\u5c0d\u61c9\u7684\u985e\u70ba<strong>ObjectAnimator<\/strong>\uff0c\u70ba<strong>ValueAnimator<\/strong>\u7684\u5b50\u985e\u3002&lt;objectAnimator&gt;<strong>\u6a19\u7c64\u8207<\/strong>&lt;animator&gt;<strong>\u6a19\u7c64\u4e0d\u540c\u7684\u662f\uff0c<\/strong>&lt;objectAnimator&gt;<strong>\u53ef\u4ee5\u76f4\u63a5\u6307\u5b9a\u52d5\u756b\u7684\u76ee\u6a19\u5c0d\u8c61\u7684\u5c6c\u6027\u3002\u6a19\u7c64\u53ef\u8a2d\u7f6e\u7684\u5c6c\u6027\u9664\u4e86\u548c<\/strong>&lt;animator&gt;\u4e00\u6a23\u7684\u90a3\u4e9b\uff0c\u53e6\u5916\u591a\u4e86\u4e00\u500b\uff1a<\/span><\/p>\n<ul>\n<li class=\"md_li\"><strong>android:propertyName<\/strong> \u76ee\u6a19\u5c0d\u8c61\u7684\u5c6c\u6027\u540d\uff0c\u8981\u6c42\u76ee\u6a19\u5c0d\u8c61\u5fc5\u9808\u63d0\u4f9b\u8a72\u5c6c\u6027\u7684setter\u65b9\u6cd5\uff0c\u5982\u679c\u52d5\u756b\u7684\u6642\u5019\u6c92\u6709\u521d\u59cb\u503c\uff0c\u9084\u9700\u8981\u63d0\u4f9bgetter\u65b9\u6cd5<\/li>\n<\/ul>\n<p class=\"md_block\"><span class=\"md_line\">\u9084\u662f\u7528\u5be6\u4f8b\u8aaa\u660e\u5177\u9ad4\u7528\u6cd5\uff0c\u9084\u662f\u7528\u4e0a\u9762\u7684\u4f8b\u5b50\uff0c\u5c07\u4e00\u500b\u6309\u9215\u7684\u5bec\u5ea6\u9032\u884c\u7e2e\u653e\uff0c\u5f9e100%\u7e2e\u653e\u523020%\uff0c\u4f46\u9019\u6b21\u6539\u7528<strong>&lt;objectAnimator&gt;<\/strong>\u5be6\u73fe\u3002<\/span> <span class=\"md_line\">\u4ee5\u4e0b\u70baxml\u6587\u4ef6\u7684\u7a0b\u5f0f\u78bc\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_xml  highlight\">\n<pre><span class=\"c\">&lt;!-- res\/animator\/object_animator.xml --&gt;<\/span>\n<span class=\"cp\">&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;<\/span>\n<span class=\"nt\">&lt;objectAnimator<\/span> <span class=\"na\">xmlns:android=<\/span><span class=\"s\">\"http:\/\/schemas.android.com\/apk\/res\/android\"<\/span>\n    <span class=\"na\">android:duration=<\/span><span class=\"s\">\"3000\"<\/span>\n    <span class=\"na\">android:propertyName=<\/span><span class=\"s\">\"width\"<\/span>\n    <span class=\"na\">android:valueFrom=<\/span><span class=\"s\">\"100\"<\/span>\n    <span class=\"na\">android:valueTo=<\/span><span class=\"s\">\"20\"<\/span>\n    <span class=\"na\">android:valueType=<\/span><span class=\"s\">\"intType\"<\/span> <span class=\"nt\">\/&gt;<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\">\u8207&lt;animator&gt;<strong>\u7684\u4f8b\u5b50\u76f8\u6bd4\uff0c\u5c31\u53ea\u662f\u591a\u4e86\u4e00\u500b<\/strong>android:propertyName**\u7684\u5c6c\u6027\uff0c\u8a2d\u7f6e\u503c\u70bawidth\u3002\u4e5f\u5c31\u662f\u8aaa\uff0c\u52d5\u756b\u6539\u8b8a\u7684\u5c6c\u6027\u70bawidth\uff0c\u503c\u5c07\u5f9e100\u9010\u6f38\u6e1b\u523020\u3002\u53e6\u5916\uff0c\u503c\u662f\u5f9esetWidth()\u50b3\u905e\u904e\u53bb\u7684\uff0c\u518d\u5f9egetWidth()\u7372\u53d6\u3002\u800c\u4e14\uff0c\u9019\u88e1\u8a2d\u7f6e\u7684\u503c\u4ee3\u8868\u7684\u662f\u6bd4\u4f8b\u503c\uff0c\u56e0\u6b64\uff0c\u9084\u9700\u8981\u9032\u884c\u8a08\u7b97\u8f49\u5316\u70ba\u5be6\u969b\u7684\u5bec\u5ea6\u503c\u3002\u6700\u5f8c\uff0c\u5c0d\u8c61\u5be6\u969b\u7684\u5bec\u5ea6\u503c\u70ba<strong>view.getLayoutParams().width<\/strong>\u3002\u56e0\u6b64\uff0c\u6211\u5c07\u7528\u4e00\u500b\u5305\u88dd\u985e\u4f86\u5305\u88dd\u539f\u59cb\u7684view\u5c0d\u8c61\uff0c\u5c0d\u5176\u63d0\u4f9bsetWidth()\u548cgetWidth()\u65b9\u6cd5\uff0c\u7a0b\u5f0f\u78bc\u5982\u4e0b\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_java  highlight\">\n<pre><span class=\"kd\">private<\/span> <span class=\"kd\">static<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">ViewWrapper<\/span> <span class=\"o\">{<\/span>\n    <span class=\"kd\">private<\/span> <span class=\"n\">View<\/span> <span class=\"n\">target<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u76ee\u6a19\u5c0d\u8c61<\/span>\n    <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">maxWidth<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u6700\u9577\u5bec\u5ea6\u503c<\/span>\n\n    <span class=\"kd\">public<\/span> <span class=\"nf\">ViewWrapper<\/span><span class=\"o\">(<\/span><span class=\"n\">View<\/span> <span class=\"n\">target<\/span><span class=\"o\">,<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">maxWidth<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">target<\/span> <span class=\"o\">=<\/span> <span class=\"n\">target<\/span><span class=\"o\">;<\/span>\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">maxWidth<\/span> <span class=\"o\">=<\/span> <span class=\"n\">maxWidth<\/span><span class=\"o\">;<\/span>\n    <span class=\"o\">}<\/span>\n\n    <span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"nf\">getWidth<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">getLayoutParams<\/span><span class=\"o\">().<\/span><span class=\"na\">width<\/span><span class=\"o\">;<\/span>\n    <span class=\"o\">}<\/span>\n\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">setWidth<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">widthValue<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n        <span class=\"c1\">\/\/widthValue\u7684\u503c\u5f9e100\u523020\u8b8a\u5316<\/span>\n        <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">getLayoutParams<\/span><span class=\"o\">().<\/span><span class=\"na\">width<\/span> <span class=\"o\">=<\/span> <span class=\"n\">maxWidth<\/span> <span class=\"o\">*<\/span> <span class=\"n\">widthValue<\/span> <span class=\"o\">\/<\/span> <span class=\"mi\">100<\/span><span class=\"o\">;<\/span>\n        <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">requestLayout<\/span><span class=\"o\">();<\/span>\n    <span class=\"o\">}<\/span>\n<span class=\"o\">}<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\">\u4e0a\u9762setWidth()\u7684\u7a0b\u5f0f\u78bc\u88e1\uff0c\u6839\u64da\u6bd4\u4f8b\u503c\u8f49\u5316\u70ba\u4e86\u5be6\u969b\u7684\u5bec\u5ea6\u503c\u3002\u6700\u5f8c\uff0c\u52d5\u756b\u8655\u7406\u7684\u7a0b\u5f0f\u78bc\u5982\u4e0b\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_java  highlight\">\n<pre><span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">onScaleWidth<\/span><span class=\"o\">(<\/span><span class=\"n\">View<\/span> <span class=\"n\">view<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n    <span class=\"c1\">\/\/ \u7372\u53d6\u87a2\u5e55\u5bec\u5ea6<\/span>\n    <span class=\"kt\">int<\/span> <span class=\"n\">maxWidth<\/span> <span class=\"o\">=<\/span> <span class=\"n\">getWindowManager<\/span><span class=\"o\">().<\/span><span class=\"na\">getDefaultDisplay<\/span><span class=\"o\">().<\/span><span class=\"na\">getWidth<\/span><span class=\"o\">();<\/span>\n    <span class=\"c1\">\/\/ \u5c07\u76ee\u6a19view\u9032\u884c\u5305\u88dd<\/span>\n    <span class=\"n\">ViewWrapper<\/span> <span class=\"n\">wrapper<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"n\">ViewWrapper<\/span><span class=\"o\">(<\/span><span class=\"n\">view<\/span><span class=\"o\">,<\/span> <span class=\"n\">maxWidth<\/span><span class=\"o\">);<\/span>\n    <span class=\"c1\">\/\/ \u5c07xml\u8f49\u5316\u70baObjectAnimator\u5c0d\u8c61<\/span>\n    <span class=\"n\">ObjectAnimator<\/span> <span class=\"n\">objectAnimator<\/span> <span class=\"o\">=<\/span> <span class=\"o\">(<\/span><span class=\"n\">ObjectAnimator<\/span><span class=\"o\">)<\/span> <span class=\"n\">AnimatorInflater<\/span><span class=\"o\">.<\/span><span class=\"na\">loadAnimator<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">,<\/span> <span class=\"n\">R<\/span><span class=\"o\">.<\/span><span class=\"na\">animator<\/span><span class=\"o\">.<\/span><span class=\"na\">object_animator<\/span><span class=\"o\">);<\/span>\n    <span class=\"c1\">\/\/ \u8a2d\u7f6e\u52d5\u756b\u7684\u76ee\u6a19\u5c0d\u8c61\u70ba\u5305\u88dd\u5f8c\u7684view<\/span>\n    <span class=\"n\">objectAnimator<\/span><span class=\"o\">.<\/span><span class=\"na\">setTarget<\/span><span class=\"o\">(<\/span><span class=\"n\">wrapper<\/span><span class=\"o\">);<\/span>\n    <span class=\"c1\">\/\/ \u555f\u52d5\u52d5\u756b<\/span>\n    <span class=\"n\">objectAnimator<\/span><span class=\"o\">.<\/span><span class=\"na\">start<\/span><span class=\"o\">();<\/span>\n<span class=\"o\">}<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\"><strong>ObjectAnimator<\/strong>\u63d0\u4f9b\u4e86\u5c6c\u6027\u7684\u8a2d\u7f6e\uff0c\u4f46\u76f8\u61c9\u7684\u9700\u8981\u6709\u8a72\u5c6c\u6027\u7684setter\u548cgetter\u65b9\u6cd5\u3002\u800c<strong>ValueAnimator<\/strong>\u5247\u53ea\u662f\u5b9a\u7fa9\u4e86\u503c\u7684\u8b8a\u5316\uff0c\u4e26\u4e0d\u6307\u5b9a\u76ee\u6a19\u5c6c\u6027\uff0c\u6240\u4ee5\u4e5f\u4e0d\u9700\u8981\u63d0\u4f9bsetter\u548cgetter\u65b9\u6cd5\uff0c\u4f46\u53ea\u80fd\u5728AnimatorUpdateListener\u76e3\u807d\u5668\u88e1\u624b\u52d5\u66f4\u65b0\u5c6c\u6027\u3002\u4e0d\u904e\uff0c\u4e5f\u56e0\u70ba\u6c92\u6709\u6307\u5b9a\u5c6c\u6027\uff0c\u6240\u4ee5\u5176\u5be6\u66f4\u5177\u9748\u6d3b\u6027\u4e86\uff0c\u4f60\u53ef\u4ee5\u5728\u76e3\u807d\u5668\u91cc\u6839\u64da\u503c\u7684\u8b8a\u5316\u505a\u4efb\u4f55\u4e8b\u60c5\uff0c\u6bd4\u5982\u66f4\u65b0\u591a\u500b\u5c6c\u6027\uff0c\u6bd4\u5982\u5728\u7e2e\u653e\u5bec\u5ea6\u7684\u540c\u6642\u505a\u5782\u76f4\u79fb\u52d5\u3002<\/span><\/p>\n<p class=\"md_block md_has_block_below md_has_block_below_ul\"><span class=\"md_line\">\u70ba\u4e86\u5c0dView\u66f4\u65b9\u4fbf\u7684\u8a2d\u7f6e\u5c6c\u6027\u52d5\u756b\uff0cAndroid\u7cfb\u7d71\u4e5f\u63d0\u4f9b\u4e86View\u7684\u4e00\u4e9b\u5c6c\u6027\u548c\u76f8\u61c9\u7684setter\u548cgetter\u65b9\u6cd5\uff1a<\/span><\/p>\n<ul>\n<li class=\"md_li\"><strong>alpha<\/strong>\uff1a\u900f\u660e\u5ea6\uff0c\u9ed8\u8a8d\u70ba1\uff0c\u8868\u793a\u4e0d\u900f\u660e\uff0c0\u8868\u793a\u5b8c\u5168\u900f\u660e<\/li>\n<li class=\"md_li\"><strong>pivotX<\/strong> \u548c <strong>pivotY<\/strong>\uff1a\u65cb\u8f49\u7684\u8ef8\u9ede\u548c\u7e2e\u653e\u7684\u57fa\u6e96\u9ede\uff0c\u9ed8\u8a8d\u662fView\u7684\u4e2d\u5fc3\u9ede<\/li>\n<li class=\"md_li\"><strong>scaleX<\/strong> \u548c <strong>scaleY<\/strong>\uff1a\u57fa\u65bcpivotX\u548cpivotY\u7684\u7e2e\u653e\uff0c1\u8868\u793a\u7121\u7e2e\u653e\uff0c\u5c0f\u65bc1\u8868\u793a\u6536\u7e2e\uff0c\u5927\u65bc1\u5247\u653e\u5927<\/li>\n<li class=\"md_li\"><strong>rotation<\/strong>\u3001<strong>rotationX<\/strong> \u548c <strong>rotationY<\/strong>\uff1a\u57fa\u65bc\u8ef8\u9ede(pivotX\u548cpivotY)\u7684\u65cb\u8f49\uff0crotation\u70ba\u5e73\u9762\u7684\u65cb\u8f49\uff0crotationX\u548crotationY\u70ba\u7acb\u9ad4\u7684\u65cb\u8f49<\/li>\n<li class=\"md_li\"><strong>translationX<\/strong> \u548c <strong>translationY<\/strong>\uff1aView\u7684\u87a2\u5e55\u4f4d\u7f6e\u5750\u6a19\u8b8a\u5316\u91cf\uff0c\u4ee5layout\u5bb9\u5668\u7684\u5de6\u4e0a\u89d2\u70ba\u5750\u6a19\u539f\u9ede<\/li>\n<li class=\"md_li\"><strong>x<\/strong> \u548c <strong>y<\/strong>\uff1aView\u5728\u7236\u5bb9\u5668\u5167\u7684\u6700\u7d42\u4f4d\u7f6e\uff0c\u662f\u5de6\u4e0a\u89d2\u5750\u6a19\u548c\u504f\u79fb\u91cf\uff08translationX\uff0ctranslationY\uff09\u7684\u548c<\/li>\n<\/ul>\n<h1 id=\"toc_2\">&lt;set&gt;<\/h1>\n<p class=\"md_block md_has_block_below md_has_block_below_ul\"><span class=\"md_line\"><strong>&lt;set&gt;<\/strong>\u6a19\u7c64\u5c0d\u61c9\u65bc<strong>AnimatorSet<\/strong>\u985e\uff0c\u53ef\u4ee5\u5c07\u591a\u500b\u52d5\u756b\u7d44\u5408\u6210\u4e00\u500b\u52d5\u756b\u96c6\uff0c\u5982\u4e0a\u9762\u63d0\u5230\u7684\u5728\u7e2e\u653e\u5bec\u5ea6\u7684\u540c\u6642\u505a\u5782\u76f4\u79fb\u52d5\uff0c\u53ef\u4ee5\u5c07\u4e00\u500b\u7e2e\u653e\u5bec\u5ea6\u7684\u52d5\u756b\u548c\u4e00\u500b\u5782\u76f4\u79fb\u52d5\u7684\u52d5\u756b\u7d44\u5408\u5728\u4e00\u8d77\u3002<\/span> <span class=\"md_line\"><strong>&lt;set&gt;<\/strong>\u6a19\u7c64\u6709\u4e00\u500b\u5c6c\u6027\u53ef\u4ee5\u8a2d\u7f6e\u52d5\u756b\u7684\u6642\u5e8f\u95dc\u4fc2\uff1a<\/span><\/p>\n<ul>\n<li class=\"md_li\"><strong>android:ordering<\/strong> \u8a2d\u7f6e\u52d5\u756b\u7684\u6642\u5e8f\u95dc\u4fc2\uff0c\u53d6\u503c\u53ef\u70ba\u4ee5\u4e0b\u5169\u500b\u503c\u4e4b\u4e00\uff1a\n<ul>\n<li class=\"md_li\"><em>together<\/em> \u52d5\u756b\u540c\u6642\u57f7\u884c\uff0c\u9ed8\u8a8d\u503c<\/li>\n<li class=\"md_li\"><em>sequentially<\/em> \u52d5\u756b\u6309\u9806\u5e8f\u57f7\u884c<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"md_block\"><span class=\"md_line\">\u90a3\u5982\u679c\u60f3\u6709\u4e9b\u52d5\u756b\u540c\u6642\u57f7\u884c\uff0c\u6709\u4e9b\u6309\u9806\u5e8f\u57f7\u884c\uff0c\u8a72\u600e\u9ebc\u8fa6\u5462\uff1f\u56e0\u70ba&lt;set&gt;<strong>\u6a19\u7c64\u662f\u53ef\u4ee5\u5d4c\u5957\u5176\u4ed6<\/strong>&lt;set&gt;<strong>\u6a19\u7c64\u7684\uff0c\u4e5f\u5c31\u662f\u8aaa\u53ef\u4ee5\u5c07\u540c\u6642\u57f7\u884c\u7684\u7d44\u5408\u5728\u4e00\u500b<\/strong>&lt;set&gt;<strong>\u6a19\u7c64\uff0c\u518d\u5d4c\u5728\u6309\u9806\u5e8f\u57f7\u884c\u7684<\/strong>&lt;set&gt;\u6a19\u7c64\u5167\u3002<\/span><\/p>\n<p class=\"md_block\"><span class=\"md_line\">\u770b\u5be6\u4f8b\u7a0b\u5f0f\u78bc\u5427\uff0c\u4ee5\u4e0b\u70baxml\u6587\u4ef6\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_xml  highlight\">\n<pre><span class=\"c\">&lt;!-- res\/animator\/animator_set.xml --&gt;<\/span>\n<span class=\"cp\">&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;<\/span>\n<span class=\"nt\">&lt;set<\/span> <span class=\"na\">xmlns:android=<\/span><span class=\"s\">\"http:\/\/schemas.android.com\/apk\/res\/android\"<\/span>\n    <span class=\"na\">android:ordering=<\/span><span class=\"s\">\"together\"<\/span><span class=\"nt\">&gt;<\/span>\n    <span class=\"nt\">&lt;objectAnimator<\/span>\n        <span class=\"na\">android:duration=<\/span><span class=\"s\">\"3000\"<\/span>\n        <span class=\"na\">android:propertyName=<\/span><span class=\"s\">\"width\"<\/span>\n        <span class=\"na\">android:valueFrom=<\/span><span class=\"s\">\"100\"<\/span>\n        <span class=\"na\">android:valueTo=<\/span><span class=\"s\">\"20\"<\/span>\n        <span class=\"na\">android:valueType=<\/span><span class=\"s\">\"intType\"<\/span> <span class=\"nt\">\/&gt;<\/span>\n    <span class=\"nt\">&lt;objectAnimator<\/span>\n        <span class=\"na\">android:duration=<\/span><span class=\"s\">\"3000\"<\/span>\n        <span class=\"na\">android:propertyName=<\/span><span class=\"s\">\"marginTop\"<\/span>\n        <span class=\"na\">android:valueFrom=<\/span><span class=\"s\">\"0\"<\/span>\n        <span class=\"na\">android:valueTo=<\/span><span class=\"s\">\"100\"<\/span>\n        <span class=\"na\">android:valueType=<\/span><span class=\"s\">\"intType\"<\/span> <span class=\"nt\">\/&gt;<\/span>\n<span class=\"nt\">&lt;\/set&gt;<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\">\u4ee5\u4e0a\u7a0b\u5f0f\u78bc\u53ef\u5be6\u73fe\u5169\u500b\u540c\u6642\u57f7\u884c\u7684\u52d5\u756b\uff0c\u4e00\u500b\u5c07width\u5f9e100\u7e2e\u653e\u523020\uff0c\u4e00\u500b\u5c07marginTop\u5f9e0\u589e\u52a0\u5230100\u3002\u591a\u4e86\u4e00\u500bmarginTop\u5c6c\u6027\uff0c\u90a3\u9ebc\uff0c\u5728ViewWrapper\u6dfb\u52a0setMarginTop()\u65b9\u6cd5\uff0c\u6dfb\u52a0\u5f8c\u7684ViewWrapper\u985e\u7a0b\u5f0f\u78bc\u5982\u4e0b\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_java  highlight\">\n<pre><span class=\"kd\">private<\/span> <span class=\"kd\">static<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">ViewWrapper<\/span> <span class=\"o\">{<\/span>\n    <span class=\"kd\">private<\/span> <span class=\"n\">View<\/span> <span class=\"n\">target<\/span><span class=\"o\">;<\/span>\n    <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">maxWidth<\/span><span class=\"o\">;<\/span>\n\n    <span class=\"kd\">public<\/span> <span class=\"nf\">ViewWrapper<\/span><span class=\"o\">(<\/span><span class=\"n\">View<\/span> <span class=\"n\">target<\/span><span class=\"o\">,<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">maxWidth<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">target<\/span> <span class=\"o\">=<\/span> <span class=\"n\">target<\/span><span class=\"o\">;<\/span>\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">maxWidth<\/span> <span class=\"o\">=<\/span> <span class=\"n\">maxWidth<\/span><span class=\"o\">;<\/span>\n    <span class=\"o\">}<\/span>\n\n    <span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"nf\">getWidth<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">getLayoutParams<\/span><span class=\"o\">().<\/span><span class=\"na\">width<\/span><span class=\"o\">;<\/span>\n    <span class=\"o\">}<\/span>\n\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">setWidth<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">widthValue<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n        <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">getLayoutParams<\/span><span class=\"o\">().<\/span><span class=\"na\">width<\/span> <span class=\"o\">=<\/span> <span class=\"n\">maxWidth<\/span> <span class=\"o\">*<\/span> <span class=\"n\">widthValue<\/span> <span class=\"o\">\/<\/span> <span class=\"mi\">100<\/span><span class=\"o\">;<\/span>\n        <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">requestLayout<\/span><span class=\"o\">();<\/span>\n    <span class=\"o\">}<\/span>\n\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">setMarginTop<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">margin<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n        <span class=\"n\">LinearLayout<\/span><span class=\"o\">.<\/span><span class=\"na\">LayoutParams<\/span> <span class=\"n\">layoutParams<\/span> <span class=\"o\">=<\/span> <span class=\"o\">(<\/span><span class=\"n\">LinearLayout<\/span><span class=\"o\">.<\/span><span class=\"na\">LayoutParams<\/span><span class=\"o\">)<\/span> <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">getLayoutParams<\/span><span class=\"o\">();<\/span>\n        <span class=\"n\">layoutParams<\/span><span class=\"o\">.<\/span><span class=\"na\">setMargins<\/span><span class=\"o\">(<\/span><span class=\"mi\">0<\/span><span class=\"o\">,<\/span> <span class=\"n\">margin<\/span><span class=\"o\">,<\/span> <span class=\"mi\">0<\/span><span class=\"o\">,<\/span> <span class=\"mi\">0<\/span><span class=\"o\">);<\/span>\n        <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">setLayoutParams<\/span><span class=\"o\">(<\/span><span class=\"n\">layoutParams<\/span><span class=\"o\">);<\/span>\n    <span class=\"o\">}<\/span>\n<span class=\"o\">}<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\">\u6700\u5f8c\uff0c\u52d5\u756b\u8655\u7406\u7684\u7a0b\u5f0f\u78bc\uff1a<\/span><\/p>\n<div class=\"codehilite code_lang_java  highlight\">\n<pre><span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">onScaleWidth<\/span><span class=\"o\">(<\/span><span class=\"n\">View<\/span> <span class=\"n\">view<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\n    <span class=\"c1\">\/\/ \u7372\u53d6\u87a2\u5e55\u5bec\u5ea6<\/span>\n    <span class=\"kt\">int<\/span> <span class=\"n\">maxWidth<\/span> <span class=\"o\">=<\/span> <span class=\"n\">getWindowManager<\/span><span class=\"o\">().<\/span><span class=\"na\">getDefaultDisplay<\/span><span class=\"o\">().<\/span><span class=\"na\">getWidth<\/span><span class=\"o\">();<\/span>\n    <span class=\"c1\">\/\/ \u5c07\u76ee\u6a19view\u9032\u884c\u5305\u88dd<\/span>\n    <span class=\"n\">ViewWrapper<\/span> <span class=\"n\">wrapper<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"n\">ViewWrapper<\/span><span class=\"o\">(<\/span><span class=\"n\">view<\/span><span class=\"o\">,<\/span> <span class=\"n\">maxWidth<\/span><span class=\"o\">);<\/span>\n    <span class=\"c1\">\/\/ \u5c07xml\u8f49\u5316\u70baObjectAnimator\u5c0d\u8c61<\/span>\n    <span class=\"n\">AnimatorSet<\/span> <span class=\"n\">animatorSet<\/span> <span class=\"o\">=<\/span> <span class=\"o\">(<\/span><span class=\"n\">AnimatorSet<\/span><span class=\"o\">)<\/span> <span class=\"n\">AnimatorInflater<\/span><span class=\"o\">.<\/span><span class=\"na\">loadAnimator<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">,<\/span> <span class=\"n\">R<\/span><span class=\"o\">.<\/span><span class=\"na\">animator<\/span><span class=\"o\">.<\/span><span class=\"na\">animator_set<\/span><span class=\"o\">);<\/span>\n    <span class=\"c1\">\/\/ \u8a2d\u7f6e\u52d5\u756b\u7684\u76ee\u6a19\u5c0d\u8c61\u70ba\u5305\u88dd\u5f8c\u7684view<\/span>\n    <span class=\"n\">animatorSet<\/span><span class=\"o\">.<\/span><span class=\"na\">setTarget<\/span><span class=\"o\">(<\/span><span class=\"n\">wrapper<\/span><span class=\"o\">);<\/span>\n    <span class=\"c1\">\/\/ \u555f\u52d5\u52d5\u756b<\/span>\n    <span class=\"n\">animatorSet<\/span><span class=\"o\">.<\/span><span class=\"na\">start<\/span><span class=\"o\">();<\/span>\n<span class=\"o\">}<\/span>\n<\/pre>\n<\/div>\n<p class=\"md_block\"><span class=\"md_line\">\u9019\u6a23\u5c31\u641e\u5b9a\u4e86\uff0c\u5be6\u73fe\u4e86\u5bec\u5ea6\u7e2e\u653e\u548c\u5782\u76f4\u79fb\u52d5\u7684\u6548\u679c\u3002<\/span><\/p>\n<h1 id=\"toc_3\">\u5beb\u5728\u6700\u5f8c<\/h1>\n<p class=\"md_block\"><span class=\"md_line\">\u81f3\u6b64\uff0c\u8996\u5716\u52d5\u756b\u548c\u5c6c\u6027\u52d5\u756b\u57fa\u672c\u7684\u7528\u6cd5\u90fd\u7e3d\u7d50\u5b8c\u4e86\u3002\u793a\u4f8b\u7a0b\u5f0f\u78bc\u53ef\u5f9egithub\u4e0a\u67e5\u770b\uff0cgithub\u5730\u5740\uff1a<\/span> <span class=\"md_line md_line_dom_embed\"><a class=\"md_compiled\" href=\"https:\/\/github.com\/keeganlee\/kstyle.git\">https:\/\/github.com\/keeganlee\/kstyle.git<\/a><\/span><\/p>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>\u8f49\u8f09\u81eaKeegan\u5c0f\u92fc \u539f\u6587\u93c8\u63a5\uff1ahttp:\/\/keeganlee.me\/post\/android\/20151 &hellip; <\/p>\n","protected":false},"author":1,"featured_media":299,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[10],"class_list":["post-727","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2","tag-android-app"],"_links":{"self":[{"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=\/wp\/v2\/posts\/727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=727"}],"version-history":[{"count":0,"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=\/wp\/v2\/posts\/727\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=\/"}],"wp:attachment":[{"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ray650128.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}