Android的DialogFragment的简单使用。

来源：互联网发布：java分页怎么实现编辑：程序博客网时间：2024/05/02 01:36

先看文章
Android ListView入门知识–各种Adapter配合使用
Android–>Dialog/DialogFragment宽度高度修改/全屏,自定义样式
Android 自定义 DialogFragment 宽度问题
[Android]ListView中分割线的设置
（转）Android 开发对话框Dialog dismiss和hide方法的区别
Android ListView 除去边缘阴影、选中色、拖动、底部上拉、顶部下拉背景色等
Android Dialog 系统样式讲解及透明背景

看看activity_main.xml　点击弹出dialog

<?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:padding ="10dp" >    <Button        android:id ="@+id/button1"        android:layout_width ="match_parent"        android:layout_height ="wrap_content"        android:text ="点击"         /></LinearLayout>

dialog_fragment.xml　实现listview布局

<?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:layout_marginLeft ="5dp"    android:layout_marginRight ="5dp"    android:layout_centerVertical="true"    >    <ListView        android:id ="@+id/list"        android:scrollbars="none"        android:layout_width ="match_parent"        android:layout_height ="match_parent"        android:divider="#dddddd"        android:fadingEdge="none"        android:background="@drawable/btn"        android:overScrollMode="never"        android:dividerHeight="2dp"        /></LinearLayout>

listitem.xml　每个子项的布局

<?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="horizontal">    <ImageView        android:id="@+id/img"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_margin="5dp"        android:src="@mipmap/ic_launcher"        />    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical"        >        <TextView            android:id="@+id/title"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:textSize="22sp"            android:text="@string/app_name"            />        <TextView            android:id="@+id/info"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:textSize="13sp"            android:text="@string/app_name"/>    </LinearLayout></LinearLayout>

MyDialogFragment，写一个dialogfragment。SimpleAdapter填入数据。

public class MyDialogFragment extends DialogFragment implements        OnItemClickListener {    private ListView mylist;    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,                             Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.dialog_fragment, null, false);        mylist = ( ListView ) view.findViewById(R.id.list);              getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);//去掉dialog的标题   //透明度WindowManager.LayoutParams 　　lp=getDialog().getWindow().getAttributes();        lp.alpha=0.8f;        getDialog().getWindow().setAttributes(lp);        return view;    }    @Override    public void onActivityCreated(Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);        SimpleAdapter adapter = new SimpleAdapter(getActivity(),getData(),R.layout.listitem,                new String[]{"title","info","img"},                new int[]{R.id.title,R.id.info,R.id.img});        mylist.setAdapter(adapter);        mylist.setOnItemClickListener( this );    }    @Override    public void onItemClick(AdapterView<?> parent, View view, int position,                            long id) {//        dismiss();    }// 重写onstart方法    @Override    public void onStart() {        super.onStart();        Dialog dialog = getDialog();        if (dialog != null) {            DisplayMetrics dm = new DisplayMetrics();            getActivity().getWindowManager().getDefaultDisplay().getMetrics(dm);// 　设置dialog的高度和宽度            dialog.getWindow().setLayout((int) (dm.widthPixels * 0.9), (int) (dm.heightPixels * 0.75));        }    }    private List<Map<String, Object>> getData() {        List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();        Map<String, Object> map = new HashMap<String, Object>();        map = new HashMap<String, Object>();        map.put("title", "不可能的梦");        map.put("info", "别只顾着吃");        map.put("img",R.mipmap.a);        list.add(map);        map = new HashMap<String, Object>();        map.put("title", "好想你想");        map.put("info", "厉害了");        map.put("img", R.mipmap.a);        list.add(map);        map = new HashMap<String, Object>();        map.put("title", "有你正好");        map.put("info", "下班回家，买菜做饭");        map.put("img", R.mipmap.tu);        list.add(map);        map = new HashMap<String, Object>();        map.put("title", "勇敢的心");        map.put("info", "今天天气不错");        map.put("img",R.mipmap.w);        list.add(map);        map = new HashMap<String, Object>();        map.put("title", "就知道你不会相信");        map.put("info", "别打扰我！");        map.put("img", R.mipmap.a);        list.add(map);        map = new HashMap<String, Object>();        map.put("title", "梦见蝴蝶");        map.put("info", "老...老板，来..来一碗面。");        map.put("img",R.mipmap.w);        list.add(map);        return list;    }}

MainActivity，点击按钮弹出dialog。

public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super .onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        findViewById(R.id.button1).setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                showDialog(view);            }        });    }    public void showDialog(View view) {        FragmentManager manager = getFragmentManager();        MyDialogFragment dialog = new MyDialogFragment();        //dialog.show(manager, "dialog");参数为　：一个布局，字符串（可以为空）。        dialog.show(manager,"");    }}

完。

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