Android全屏(包含3种隐藏顶部状态栏及标题栏和一种隐藏Android 4.0平板底部状态栏的方法)
方法一
public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 隐藏标题栏 requestWindowFeature(Window.FEATURE_NO_TITLE); // 隐藏状态栏 getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.activity_main); } }
方法二
<!-- 同时隐藏状态栏和标题栏 --> <activity android:name="com.ysj.demo.MainActivity" android:theme="@android:style/Theme.NoTitleBar.Fullscreen" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity>
方法三
<!-- Application theme. --> <style name="AppTheme" parent="AppBaseTheme"> <!-- All customizations that are NOT specific to a particular API-level can go here. --> <!-- 隐藏状态栏 --> <item name="android:windowFullscreen">true</item> <!-- 隐藏标题栏 --> <item name="android:windowNoTitle">true</item> </style>
注:
1、方法一中的两段代码要在setContentView()之前。
2、方法二只能同时隐藏状态栏和标题栏。
3、方法一和方法二都只应用于单个Activity。方法三应用于整个程序。
对于运行Android 4.0以上系统的平板电脑,以上三种方法都不会隐藏屏幕下方的状态栏,须做如下处理。
public class StartupActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_startup); /* * 隐藏运行Android 4.0以上系统的平板的屏幕下方的状态栏 */ try { String ProcID = "79"; if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) ProcID = "42"; // ICS // 需要root 权限 Process proc = Runtime.getRuntime().exec(new String[] { "su", "-c", "service call activity " + ProcID + " s16 com.android.systemui" }); // WAS proc.waitFor(); } catch (Exception ex) { Toast.makeText(getApplicationContext(), ex.getMessage(), Toast.LENGTH_LONG).show(); } } @Override protected void onDestroy() { // TODO Auto-generated method stub /* * 恢复运行Android 4.0以上系统的平板的屏幕下方的状态栏 */ try { Process proc = Runtime.getRuntime().exec(new String[] { "am", "startservice", "-n", "com.android.systemui/.SystemUIService" }); proc.waitFor(); } catch (Exception e) { e.printStackTrace(); } super.onDestroy(); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.startup, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // TODO Auto-generated method stub switch (item.getItemId()) { case R.id.action_exit: finish(); break; } return true; } }
由于没有了状态栏,须在程序中提供退出程序的方法。
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