This requires that you give your app an additional permission, and it is very easy to introduce bugs where you accidentally remain holding the wake lock and thus leave the screen on.
It is far, far better to use the window flag FLAG_KEEP_SCREEN_ON
, which you can enable on your activity's window in your onCreate()
like this:
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
This will make sure that the screen stays on while your window is in the foreground, and only while it is in the foreground. It greatly simplifies this common use case, eliminating any juggling you need to do as your app transitions between states.
This Question has Already Great Answer by @hackbod !
I am Answering this Question with Two Additional Solutions !
Existing Solution :
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
Additional Solutions:
we can use keepScreenOn
1. implementation
using setKeepScreenOn() in java code
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// or any View (in case generated programmatically )
View v = getLayoutInflater().inflate(R.layout.driver_home, null);
v.setKeepScreenOn(true);
setContentView(v);
}
Docs http://developer.android.com/reference/android/view/View.html#setKeepScreenOn(boolean)
2. Adding keepScreenOn
to xml layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:keepScreenOn="true" >
Docs http://developer.android.com/reference/android/view/View.html#attr_android%3akeepScreenOn
Note ( Some Useful Points) :
1. it Doesn't matter that keepScreenOn
should be used on Main/Root/Parent View
it can be used with any child view
will work As same as it works in Parent view
2. The Thing Only matter is that View's Visibility must be visible
other wise it will not work !
Another solution is to add android:keepScreenOn="true"
(documentation) to the views that need to keep the screen on.
Allows for a little bit more granular control in terms of which views stay on and which don't. You can even reference a setting from a resource file this way.
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