PopupWindow使用

使用PopupWindow来显示一个浮层

点击按钮后弹出浮层

 

 

 

public class PopupWindowDemo extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.popup_window_demo);
        findViewById(R.id.popup_window_button).setOnClickListener(listener);
    }
    
    OnClickListener listener = new OnClickListener(){
        @Override
        public void onClick(View arg0) {
            LayoutInflater inflater = PopupWindowDemo.this.getLayoutInflater();
            View popupView = inflater.inflate(R.layout.popup_window, null);
            PopupWindow mPopupWindow = new PopupWindow(popupView,
                    LayoutParams.FILL_PARENT,  
                    LayoutParams.WRAP_CONTENT);
            mPopupWindow.showAtLocation(findViewById(R.id.popup_window), Gravity.CENTER, 0, 0);
        }
    };
}

 

 <?xml version="1.0" encoding="utf-8"?>

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/popup_window"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent">
    <TextView android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="PopupWindow使用示例"/>
    <Button android:id="@+id/popup_window_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Popup"/>
</LinearLayout>

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:padding="10dip">
    <LinearLayout android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/popup_window_bg">
        <ImageView android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="25dip"
            android:src="@drawable/popup_window_left"/>
        <TextView android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="这是一个浮层"
            android:textSize="20dip"
            android:textColor="#000000"
            android:layout_marginLeft="20dip"
            android:layout_gravity="center"/>
    </LinearLayout>
</LinearLayout>