Fragment的简单使用
最近一直有点忙,刚刚看到一个朋友的留言提到Fragment中加载ListView的问题,这里写了一个非常简单的测试,至于对Fragment的增、删、改实现动态布局构建灵活的UI,以后有时间在讨论:
MainActivity:
package com.home.testfragment;import java.util.ArrayList;import java.util.List;import android.os.Bundle;import android.support.v4.app.FragmentActivity;import android.widget.ArrayAdapter;import android.widget.ListView;public class MainActivity extends FragmentActivity {@Overrideprotected void onCreate(Bundle arg0) {super.onCreate(arg0);setContentView(R.layout.main);ListView listView = (ListView) findViewById(R.id.fragment__first_list);List<String> list = new ArrayList<String>();list.add("张三");list.add("李四");list.add("王五");list.add("赵六");ArrayAdapter<String> adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1, list);listView.setAdapter(adapter);}}
FirstFragment:
package com.home.testfragment;import android.os.Bundle;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;public class FirstFragment extends Fragment {@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {return inflater.inflate(R.layout.fragment_first, container, false);}}
main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <fragment android:name="com.home.testfragment.FirstFragment" android:layout_width="match_parent" android:layout_height="wrap_content" android:tag="@+id/main_fragment_first" /></LinearLayout>
fragment_first:
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="测试fragment的简单使用" android:textSize="20sp" /> <ListView android:id="@+id/fragment__first_list" android:layout_width="match_parent" android:layout_height="wrap_content" > </ListView></LinearLayout>
附上界面效果: