Android 页面顶部状态栏隐藏和透明

隐藏

方法1

//隐藏标题栏
requestWindowFeature(Window.FEATURE_NO_TITLE);
//隐藏状态栏
//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);

setContentView(R.layout.activity_main);

方法2

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

透明

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Window window = activity.getWindow();
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
| WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
window.setStatusBarColor(Color.TRANSPARENT);
window.setNavigationBarColor(Color.TRANSPARENT);
}