Android App 隐藏显示标题栏、状态栏、导航栏

Android App 隐藏显示标题栏、状态栏、导航栏

1. 隐藏当前Activity标题栏
    在当前Activity中调用：this.requestWindowFeature(Window.FEATURE_NO_TITLE);

2. 隐藏当前Activity状态栏(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. 隐藏当前Activity界面的导航栏(NavigationBar)，在定制项目实际中遇到过
    在Android4.0及以后版本中，可通过以下方法隐藏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. 隐藏所有Activity界面的标题栏
　修改AndroidManifest.xml
　在application 标签中添加a
    android:theme="@android:style/Theme.NoTitleBar"

5. 隐藏所有Activity界面的TitleBar 和StatusBar
　　修改AndroidManifest.xml
　　在application 标签中添加
　　android:theme="@android:style/Theme.NoTitleBar.Fullscreen"