Android 全屏相关操作

1.隐藏标题栏（titlebar）

　　（1）在代码中隐藏标题栏

requestWindowFeature(Window.FEATURE_NO_TITLE);

　　（2）在Manifest中Application或Activity中配置主题样式

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

2.隐藏状态栏（statusbar）
　　（1）在Manifest中Activity中配置主题样式

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

　　（2）在代码中隐藏状态栏

/**
* 隐藏状态栏
*/
private void hideStatusBar() {
//定义全屏参数
int flag = WindowManager.LayoutParams.FLAG_FULLSCREEN;
//获得当前窗体对象
Window window = MainActivity.this.getWindow();
//设置当前窗体为全屏显示
window.setFlags(flag, flag);
}

3.隐藏导航栏（NavigationBar）

　　/**
* 隐藏导航栏,可返回
*/
private void hideNavigationBarCanBack() {
View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions);
}

4.同时隐藏状态栏和导航栏

/**
* 隐藏导航栏
*/
public void hideNavigationBarAndStatusBar() {
int uiFlags = 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 // hide nav bar
| View.SYSTEM_UI_FLAG_FULLSCREEN; // hide status bar

if (android.os.Build.VERSION.SDK_INT >= 19) {
//SYSTEM_UI_FLAG_IMMERSIVE_STICKY: hide navigation bars - compatibility: building API level is lower thatn 19, use magic number directly for higher API target level
uiFlags |= 0x00001000;
} else {
uiFlags |= View.SYSTEM_UI_FLAG_LOW_PROFILE;
}
getWindow().getDecorView().setSystemUiVisibility(uiFlags);
}

5.动态全屏与退出

/**
* 动态设置全屏
*/
private void dynamicFullScreen(){
WindowManager.LayoutParams attrs = getWindow().getAttributes();
attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
getWindow().setAttributes(attrs);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
}

/**
* 动态退出全屏
*/
private void dynamicExitFullScreen(){
WindowManager.LayoutParams attrs = getWindow().getAttributes();
attrs.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().setAttributes(attrs);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
}