我如何使一个活动全屏?没有通知栏。
当前回答
我想使用我自己的主题,而不是使用@android:style/ theme . notitlebar . fullscreen。但它并没有像这里的一些帖子所提到的那样工作,所以我做了一些调整来解决它。
在AndroidManifest.xml:
<activity
android:name=".ui.activity.MyActivity"
android:theme="@style/MyTheme">
</activity>
在styles.xml:
<style name="MyTheme">
<item name="android:windowNoTitle">true</item>
<item name="android:windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="windowActionBar">false</item>
<item name="android:windowFullscreen">true</item>
</style>
注意:在我的情况下,我必须使用name="windowActionBar"而不是name="android:windowActionBar"在它正常工作之前。所以我只是使用了这两种方法,以确保我以后需要移植到新的Android版本。
其他回答
如果你使用AppCompat和ActionBarActivity,那么使用这个
getSupportActionBar () hide ();
提示:使用getWindow().setLayout()会搞砸你的全屏显示!注意,这个方法的文档说:
设置窗口的宽度和高度布局参数… 你可以把它们改成……用于制作非全屏窗口的绝对值。
http://developer.android.com/reference/android/view/Window.html#setLayout%28int,%20int%29
For my purposes, I found that I had to use setLayout with absolute parameters to resize my full screen window correctly. Most of the time, this worked fine. It was called by an onConfigurationChanged() event. There was a hiccup, however. If the user exited the app, changed the orientation, and reentered, it would lead to firing off my code which included setLayout(). During this re-entry time window, my status bar (which was hidden by the manifest) would be made to re-appear, but at any other time setLayout() would not cause this! The solution was to add an additional setLayout() call after the one with the hard values like so:
public static void setSize( final int width, final int height ){
//DO SOME OTHER STUFF...
instance_.getWindow().setLayout( width, height );
// Prevent status bar re-appearance
Handler delay = new Handler();
delay.postDelayed( new Runnable(){ public void run() {
instance_.getWindow().setLayout(
WindowManager.LayoutParams.FILL_PARENT,
WindowManager.LayoutParams.FILL_PARENT );
}}, FILL_PARENT_ON_RESIZE_DELAY_MILLIS );
}
然后,窗口正确地调整大小,状态栏不会重新出现,不管触发这一事件。
使用Android Studio(当前版本是2.2.2)很容易添加一个全屏活动。
请看步骤:
右键单击你的java主包,选择“新建”,选择“活动”,然后点击“全屏活动”。
自定义活动(“活动名称”,“布局名称”等),点击“完成”。
完成了!
现在你有一个全屏的活动很容易(查看java类和活动布局,以了解事情是如何工作的)!
https://developer.android.com/training/system-ui/immersive.html
活动:
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if (hasFocus) {
decorView.setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
}
}
安卓清单:
<activity android:name=".LoginActivity"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/title_activity_login"
android:theme="@style/FullscreenTheme"
></activity>
AndroidManifest.xml
<activity ...
android:theme="@style/FullScreenTheme"
>
</activity>
I.你的主应用的主题是theme . appcompat . light . darkactionbar
隐藏ActionBar / StatusBar style.xml
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
...
</style>
<style name="FullScreenTheme" parent="AppTheme">
<!--this property will help hide the ActionBar-->
<item name="windowNoTitle">true</item>
<!--currently, I don't know why we need this property since use windowNoTitle only already help hide actionbar. I use it because it is used inside Theme.AppCompat.Light.NoActionBar (you can check Theme.AppCompat.Light.NoActionBar code). I think there are some missing case that I don't know-->
<item name="windowActionBar">false</item>
<!--this property is used for hiding StatusBar-->
<item name="android:windowFullscreen">true</item>
</style>
隐藏系统导航栏
public class MainActivity extends AppCompatActivity {
protected void onCreate(Bundle savedInstanceState) {
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
setContentView(R.layout.activity_main)
...
}
}
2你的主应用主题是theme . appcompat . light . noactionbar
隐藏ActionBar / StatusBar style.xml
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
...
</style>
<style name="FullScreenTheme" parent="AppTheme">
<!--don't need any config for hide ActionBar because our apptheme is NoActionBar-->
<!--this property is use for hide StatusBar-->
<item name="android:windowFullscreen">true</item> //
</style>
隐藏系统导航栏
类似于theme。appcompat。light。darkactionbar。
演示
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