英文:
How to hide Navigation Bar for ALL Activities? Android Studio
问题
我发现了如何使用以下代码来隐藏导航栏：
View decorView = getWindow().getDecorView();
decorView.setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener() {
@Override
public void onSystemUiVisibilityChange(int visibility) {
if (visibility == 0){
decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
}
}
});
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if(hasFocus){
decorView.setSystemUiVisibility(hideSystemBars());
}
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
private int hideSystemBars(){
return View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
}
这对于特定的活动有效。我正在开发一个应用程序，已经有很多活动了。是否有办法将这个设置应用于所有活动，还是我必须将这个代码段放入所有的活动中？
英文:
I found out how I can hide the navigation with this
View decorView = getWindow().getDecorView();
decorView.setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener() {
@Override
public void onSystemUiVisibilityChange(int visibility) {
if (visibility == 0){
decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
}
}
});
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if(hasFocus){
decorView.setSystemUiVisibility(hideSystemBars());
}
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
private int hideSystemBars(){
return View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
}
It works for that activity.
I'm developing an app right now and already have plenty of activities.
Is there a way how to set this for all activities or do I have to put this snippet in all of my activity?
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