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1. 隱藏當前Activity標題欄

2. 隱藏當前Activity狀態列(Status Bar)

2.1 Android 4.0 and Lower

public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        // If the Android version is lower than Jellybean, use this call to hide
 
        // the status bar.        if (Build.VERSION.SDK_INT < 16) {            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,                    WindowManager.LayoutParams.FLAG_FULLSCREEN);        }        setContentView(R.layout.activity_main);    }    ...}
 

2.2 Android 4.1 and Higher

View decorView = getWindow().getDecorView();// Hide the status bar.int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;decorView.setSystemUiVisibility(uiOptions);// Remember that you should never show the action bar if the// status bar is hidden, so hide that too if necessary.ActionBar actionBar = getActionBar();actionBar.hide();

3. 隱藏當前Activity介面的導航欄(NavigationBar)

    在Android4.0及以後版本中，可通過以下方法隱藏NavigationBar

View decorView = getWindow().getDecorView();// Hide both the navigation bar and the status bar.// SYSTEM_UI_FLAG_FULLSCREEN is only available on Android 4.1 and higher, but as// a general rule, you should design your app to hide the status bar whenever you// hide the navigation bar.int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION              | View.SYSTEM_UI_FLAG_FULLSCREEN;decorView.setSystemUiVisibility(uiOptions);

4. 隱藏所有Activity介面的標題欄

5. 隱藏所有Activity介面的TitleBar 和StatusBar 

　　android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

http://developer.android.com/training/system-ui/status.html#40

http://developer.android.com/training/system-ui/index.html

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