程序中隐藏状态栏

import android.app.Activity; 
import android.os.Bundle; 
import android.view.Window; 
import android.view.WindowManager; 
 
public class ActivityName extends Activity { 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        // remove title 
        requestWindowFeature(Window.FEATURE_NO_TITLE); 
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
            WindowManager.LayoutParams.FLAG_FULLSCREEN); 
        setContentView(R.layout.main); 
    } 
} 
<activity android:name=".ActivityName" 
    android:label="@string/app_name" 
    android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"> 
</activity>