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FCMActivity.java
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FCMActivity.java
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package com.trung.fcm.library;
import android.app.Activity;
import android.app.Application;
import android.os.Bundle;
import android.support.annotation.Nullable;
/**
* Simplify Activity for receiving notification
*/
public abstract class FCMActivity extends Activity implements FCMListener {
private InternalLifecycleListener mInternalLifeCycleListener;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mInternalLifeCycleListener = new InternalLifecycleListener();
getApplication().registerActivityLifecycleCallbacks(mInternalLifeCycleListener);
}
private void onDestroy(Activity activity) {
if (activity == this) {
FCMManager.getInstance(this).unRegisterListener();
}
}
private void onResume(Activity activity) {
if (activity == this) {
FCMManager.getInstance(this).registerListener(this);
}
}
/**
* Internal life cycle listener.
* Used nested class instead of directly implements callback in order to reduce the public
* API
*/
private class InternalLifecycleListener implements Application.ActivityLifecycleCallbacks {
@Override
public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
}
@Override
public void onActivityStarted(Activity activity) {
}
@Override
public void onActivityResumed(Activity activity) {
onResume(activity);
}
@Override
public void onActivityPaused(Activity activity) {
}
@Override
public void onActivityStopped(Activity activity) {
}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
}
@Override
public void onActivityDestroyed(Activity activity) {
onDestroy(activity);
}
}
}