[Android]Fragment应用/ListFragment/DialogFragment

来源：互联网发布：生成淘宝无线链接地址编辑：程序博客网时间：2024/05/21 08:57

》》ListFragment以List的形式展现，如果只是简单地展现一个List列表，这是一个不错的选择

<?xml version="1.0" encoding="utf-8"?><RelativeLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.girls.tiffany270.list_dialog_fragment.MainActivity">    <fragment        android:id="@+id/fragment_list"        android:name="com.girls.tiffany270.list_dialog_fragment.List_Fragmet"        android:layout_width="match_parent"        android:layout_height="match_parent">    </fragment></RelativeLayout>

这里的id是固定值

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"                android:layout_width="match_parent"                android:layout_height="match_parent">    <!--这里的Listview的id是系统id，要规范-->    <ListView        android:id="@id/android:list"        android:layout_width="match_parent"        android:layout_height="match_parent">    </ListView></RelativeLayout>

package com.girls.tiffany270.list_dialog_fragment;import android.app.ListFragment;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.ListView;import java.util.ArrayList;import java.util.List;/** * Created by Tiffany270 on 2017/11/10. */public class List_Fragmet extends ListFragment {    private List<String> list;//准备数据源    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.list_fragment, null);        list = new ArrayList<>();//实例化数据源        //模拟数据        for (int i = 0; i < 20; i++) {            list.add("itme" + i);        }        ArrayAdapter<String> adapter = new ArrayAdapter<String>                (getActivity(), android.R.layout.simple_list_item_1,list);        //这里默认已经有Listview了        setListAdapter(adapter);        return view;    }    //这里可以设置点击事件    @Override    public void onListItemClick(ListView l, View v, int position, long id) {        //list.get(position);    }}

效果：

》》DialogFragment

传统的dialog在转动屏幕会有点问题，官方是不建议直接使用，所以衍生除了DialogFragment

package com.girls.tiffany270.list_dialog_fragment;import android.app.DialogFragment;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void click(View view){        DialogFragment fragment = new Dialog_Fragment();        fragment.show(getFragmentManager(),"dialog");    }}

package com.girls.tiffany270.list_dialog_fragment;import android.app.AlertDialog;import android.app.Dialog;import android.app.DialogFragment;import android.content.DialogInterface;import android.os.Bundle;/** * Created by Tiffany270 on 2017/11/10. */public class Dialog_Fragment extends DialogFragment {    //    //使用xml文件来定义对话框    //    @Nullable    //    @Override    //    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {    //        return super.onCreateView(inflater, container, savedInstanceState);    //    }    //用alerdailog或dailog    @Override    public Dialog onCreateDialog(Bundle savedInstanceState) {        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());        builder.setTitle("Dialog");        builder.setMessage("你确定要退出吗？");        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                //设置监听事件            }        });        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                //设置事件            }        });        return builder.create();    }}

实现效果

阅读全文

0 0