Others

1.移除控件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" 
     android:id="@+id/RelativeLayout01">

    <SurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="200px"
        android:layout_height="160px" />
     .
     .
     .控件(按钮、图片...)
     .
</RelativeLayout>

 

RelativeLayout relativeLayout = (RelativeLayout)findViewById(R.id.RelativeLayout01);

relativeLayout.removeAllViews(); //移除这个布局上的所有控件

 

 2.按钮事件

 

<LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:orientation="horizontal" >

        <ImageButton
            android:id="@+id/pause"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />

        <ImageButton
            android:id="@+id/stop"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

 ImageButton play, stop;

 

play = (ImageButton) findViewById(R.id.play);

stop = (ImageButton) findViewById(R.id.stop); 

play.setOnClickListener(this);

stop.setOnClickListener(this);

public void onClick(View source) {
		try {
			switch (source.getId()) {
			case R.id.play:
				
				break;		
			case R.id.stop:
				
				break;
			}
			
		} catch (Exception e) {
			e.printStackTrace();
		}

}