Android中PopupWindow的使用

public class PopUpActivity extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        LayoutInflater inflater = LayoutInflater.from(this);        // 引入窗口配置文件        View view = inflater.inflate(R.layout.main2, null);        // 创建PopupWindow对象        final PopupWindow pop = new PopupWindow(view, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, false);        Button btn = (Button) findViewById(R.id.btn);        // 需要设置一下此参数，点击外边可消失        pop.setBackgroundDrawable(new BitmapDrawable());        //设置点击窗口外边窗口消失        pop.setOutsideTouchable(true);        // 设置此参数获得焦点，否则无法点击        pop.setFocusable(true);        btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if(pop.isShowing()) {// 隐藏窗口，如果设置了点击窗口外小时即不需要此方式隐藏pop.dismiss();} else {// 显示窗口pop.showAsDropDown(v);}}});    }}

main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <Button        android:id="@+id/btn"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="dianji" /></LinearLayout>

main2.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <Button        android:id="@+id/a"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="AAAAA" />    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="BBBBB" />    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="CCCCC" />    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="DDDDD" /></LinearLayout>

效果很不错~~~

更多相关文章

随机推荐