{"id":515,"date":"2015-09-26T14:23:27","date_gmt":"2015-09-26T06:23:27","guid":{"rendered":"https:\/\/www.ray650128.com\/wordpress\/?p=515"},"modified":"2021-08-26T22:50:54","modified_gmt":"2021-08-26T14:50:54","slug":"android%e5%bb%ba%e7%ab%8b%e8%87%aa%e5%b8%b6%e4%bd%88%e5%b1%80%e7%9a%84fragment%e5%88%86%e9%a0%81","status":"publish","type":"post","link":"https:\/\/blog.ray650128.com\/?p=515","title":{"rendered":"[Android]Fragment\u5143\u4ef6"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u95dc\u65bcFragment<\/h2>\n\n\n\n<p>Fragment\uff0c\u4e2d\u6587\u540d\u7a31\u53eb\u505a\u7247\u6bb5\u3002\u662f\u4f9d\u9644\u5728Activity\u5167\u7684View\u985e\u5225\u3002<\/p>\n\n\n\n<p>Fragment\u6700\u65e9\u662f\u5728Android 3.0\u52a0\u5165\u7684\uff0c\u56e0\u70ba\u5e73\u677f\u96fb\u8166\u7684\u756b\u9762\u5920\u5927\uff0c\u6240\u4ee5Google\u63a8\u51fa\u4e86\u9019\u500b\u5143\u4ef6\uff0c\u76ee\u7684\u662f\u8981\u8b93\u5e73\u677f\u96fb\u8166\u7684\u756b\u9762\u80fd\u66f4\u5920\u66f4\u6709\u6548\u7684\u5206\u914d\u3002<\/p>\n\n\n\n<p>\u5230\u4e86Android 4.0\uff0cFragment\u76f4\u63a5\u4fdd\u7559\u4e86\u4e0b\u4f86\uff0c\u76f4\u5230\u73fe\u5728\u4f9d\u820a\u9084\u662f\u4f7f\u7528\u7387\u883b\u9ad8\u7684\u5143\u4ef6\u4e4b\u4e00\u3002<\/p>\n\n\n\n<p>\u901a\u5e38\u4e00\u500bActivity\u5167\u53ef\u4ee5\u52a0\u5165\u591a\u500bFragment\uff0c\u8b93\u6211\u5011\u53ef\u4ee5\u4f9d\u7167\u6211\u5011\u7684\u9700\u6c42\u5c0d\u7a0b\u5f0f\u7684\u756b\u9762\u9032\u884c\u6709\u6548\u7684\u5207\u5272\u3002<\/p>\n\n\n\n<p>\u53e6\u5916\uff0cFragment\u6709\u81ea\u5df1\u7684\u751f\u547d\u9031\u671f\u3002\u4e14Fragment\u8ddfActivity\u7684\u751f\u547d\u9031\u671f\u4e92\u76f8\u6709\u9023\u52d5\u3002<br>\u7576Activity\u505c\u6b62\u6642\uff0cFragment\u4e5f\u6703\u8ddf\u8457\u505c\u6b62\uff0c\u7576Activity\u88ab\u7cfb\u7d71\u6e05\u6389\u6642\uff0cFragment\u4e5f\u6703\u8ddf\u8457\u88ab\u6e05\u9664\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662fFragment\u7684\u751f\u547d\u9031\u671f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"317\" height=\"847\" src=\"https:\/\/www.ray650128.com\/wordpress\/wp-content\/uploads\/2021\/08\/fregemt\u751f\u547d\u5468\u671fpng.png\" alt=\"\" class=\"wp-image-1159\" srcset=\"https:\/\/blog.ray650128.com\/wp-content\/uploads\/2021\/08\/fregemt\u751f\u547d\u5468\u671fpng.png 317w, https:\/\/blog.ray650128.com\/wp-content\/uploads\/2021\/08\/fregemt\u751f\u547d\u5468\u671fpng-112x300.png 112w\" sizes=\"auto, (max-width: 317px) 100vw, 317px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u4f7f\u7528Fragment\uff1a<\/strong><\/h2>\n\n\n\n<p>1.\u5728\u5c08\u6848\u5de6\u5074\u8996\u7a97\u4e2d\u6309\u4e0b\u53f3\u9375\uff0cNew&gt;Fragment&gt;Fragment&gt;Fragment (Blank)<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/ray650128540340665.files.wordpress.com\/2018\/04\/2018-04-09-e4b88be58d885-26-38efbc882efbc89.png\" alt=\"\" class=\"wp-image-516\"\/><\/figure>\n\n\n\n<p>2.\u63a5\u8457\u5c31\u6703\u81ea\u52d5\u751f\u6210Fragment\u7684\u4f48\u5c40\u6587\u4ef6\u8ddf\u539f\u59cb\u78bc\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/ray650128540340665.files.wordpress.com\/2018\/04\/2018-04-09-e4b88be58d885-33-22efbc882efbc89.png\" alt=\"\" class=\"wp-image-517\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u53e6\u5916\uff0cFragment\u9084\u80fd\u548cViewPager\u7d50\u5408\uff0c\u5be6\u73fe\u6ed1\u52d5\u5207\u63db\u5206\u9801\u3002<\/p>\n\n\n\n<p>1.\u9996\u5148\u5728Activity\u7684\u5e03\u5c40\u6587\u4ef6\u4e2d\u52a0\u5165ViewPager\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"xml\" class=\"language-xml line-numbers\">&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;\n&lt;LinearLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n&nbsp;   xmlns:ads=\"http:\/\/schemas.android.com\/apk\/lib\/com.google.ads\"\n&nbsp;   android:layout_width=\"fill_parent\"\n&nbsp;   android:layout_height=\"fill_parent\"\n&nbsp;   android:orientation=\"vertical\" &gt;\n\n&nbsp;   &lt;android.support.v4.view.ViewPager\n&nbsp;       android:id=\"@+id\/pager\"\n&nbsp;       android:layout_width=\"fill_parent\"\n&nbsp;       android:layout_height=\"fill_parent\" \/&gt;\n\n&lt;\/LinearLayout&gt;<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>2.\u5be6\u4f5cViewPager\u7684FragmentPagerAdapter\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"java\" class=\"language-java line-numbers\">public static class ViewPagerAdapter extends FragmentPagerAdapter {\n\n    private String[] values = new String[] { \"page1\", \"page2\" };\n\n    public ViewPagerAdapter(FragmentManager fm) {\n        super(fm);\n    }\n\n    @Override\n    public Fragment getItem(int position) {\n        ViewPagerFragment fragment = new ViewPagerFragment();\n        Bundle args = new Bundle();\n        args.putString(\"value\", values[position]);\n        fragment.setArguments(args);\n        return fragment;\n    }\n\n    @Override\n    public int getCount() {\n        return values.length;\n    }\n}<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>3.\u5efa\u7acbFragment\u5143\u4ef6\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"java\" class=\"language-java line-numbers\">public static class ViewPagerFragment extends Fragment {\n\n    @Override\n    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {\n        TextView textView = new TextView(getActivity());\n        textView.setGravity(Gravity.CENTER);\n        textView.setText(getArguments().getString(\"value\"));\n        return textView;\n    }\n}<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>4.\u6700\u5f8c\u5728Activity\u4e2d\uff0c\u5c0dViewPager\u521d\u59cb\u5316\u4e26\u50b3\u5165ViewPager Adapter\u5373\u53ef\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"java\" class=\"language-java line-numbers\">public class MainActivity extends Activity {\n\n    private ViewPager mPager;\n    private ViewPagerAdapter mAdapter;\n \n\t@Override\n\tprotected void onCreate(Bundle savedInstanceState) {\n\t\tsuper.onCreate(savedInstanceState);\n\t\tsetContentView(R.layout.activity_main);\n\n        mAdapter = new ViewPagerAdapter(getSupportFragmentManager());\n        mPager = (ViewPager) findViewById(R.id.pager);\n        mPager.setAdapter(mAdapter);\n\t}\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u95dc\u65bcFragment Fragment\uff0c\u4e2d\u6587\u540d\u7a31\u53eb\u505a\u7247\u6bb5\u3002\u662f\u4f9d\u9644\u5728Activity\u5167\u7684View\u985e\u5225\u3002 Frag &hellip; 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