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"

Android App 隐藏显示标题栏、状态栏、导航栏

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