gecko/mobile/android/base/GeckoApplication.java

77 lines
2.1 KiB
Java

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import java.util.ArrayList;
import android.app.Activity;
import android.app.Application;
public class GeckoApplication extends Application {
private boolean mInBackground = false;
private ArrayList<ApplicationLifecycleCallbacks> mListeners;
@Override
public void onCreate() {
// workaround for http://code.google.com/p/android/issues/detail?id=20915
try {
Class.forName("android.os.AsyncTask");
} catch (ClassNotFoundException e) {}
super.onCreate();
}
public interface ApplicationLifecycleCallbacks {
public void onApplicationPause();
public void onApplicationResume();
}
public void addApplicationLifecycleCallbacks(ApplicationLifecycleCallbacks callback) {
if (mListeners == null)
mListeners = new ArrayList<ApplicationLifecycleCallbacks>();
mListeners.add(callback);
}
public void removeApplicationLifecycleCallbacks(ApplicationLifecycleCallbacks callback) {
if (mListeners == null)
return;
mListeners.remove(callback);
}
public void onActivityPause(GeckoActivity activity) {
if (activity.isGeckoActivityOpened())
return;
if (mListeners == null)
return;
mInBackground = true;
for (ApplicationLifecycleCallbacks listener: mListeners)
listener.onApplicationPause();
}
public void onActivityResume(GeckoActivity activity) {
// This is a misnomer. Should have been "wasGeckoActivityOpened".
if (activity.isGeckoActivityOpened())
return;
if (mListeners == null)
return;
for (ApplicationLifecycleCallbacks listener: mListeners)
listener.onApplicationResume();
mInBackground = false;
}
public boolean isApplicationInBackground() {
return mInBackground;
}
}