ক্রিয়াকলাপিফাইসাইকেলব্যাকস অ্যাপ্লিকেশনটিতে সমস্ত ক্রিয়াকলাপের উপর নজর রাখার দুর্দান্ত উপায়:
public class BaseActivityLifecycleCallbacks implements Application.ActivityLifecycleCallbacks {
private ActivityState homeState, contentState;
@Override
public void onActivityCreated(Activity activity, Bundle bundle) {
if (activity instanceof HomeActivityv2) {
homeState = ActivityState.CREATED;
} else if (activity instanceof ContentDisplayActivity) {
contentState = ActivityState.CREATED;
}
}
@Override
public void onActivityStarted(Activity activity) {
if (activity instanceof HomeActivityv2) {
homeState = ActivityState.STARTED;
} else if (activity instanceof ContentDisplayActivity) {
contentState = ActivityState.STARTED;
}
}
@Override
public void onActivityResumed(Activity activity) {
if (activity instanceof HomeActivityv2) {
homeState = ActivityState.RESUMED;
} else if (activity instanceof ContentDisplayActivity) {
contentState = ActivityState.RESUMED;
}
}
@Override
public void onActivityPaused(Activity activity) {
if (activity instanceof HomeActivityv2) {
homeState = ActivityState.PAUSED;
} else if (activity instanceof ContentDisplayActivity) {
contentState = ActivityState.PAUSED;
}
}
@Override
public void onActivityStopped(Activity activity) {
if (activity instanceof HomeActivityv2) {
homeState = ActivityState.STOPPED;
} else if (activity instanceof ContentDisplayActivity) {
contentState = ActivityState.STOPPED;
}
}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle bundle) {
}
@Override
public void onActivityDestroyed(Activity activity) {
if (activity instanceof HomeActivityv2) {
homeState = ActivityState.DESTROYED;
} else if (activity instanceof ContentDisplayActivity) {
contentState = ActivityState.DESTROYED;
}
}
public ActivityState getHomeState() {
return homeState;
}
public ActivityState getContentState() {
return contentState;
}
}
ActivityState:
public enum ActivityState {
CREATED, STARTED, RESUMED, PAUSED, STOPPED, DESTROYED;
}
অ্যাপ্লিকেশন শ্রেণি প্রসারিত করুন এবং অ্যান্ড্রয়েড ম্যানিফেস্ট ফাইলে এর রেফারেন্স সরবরাহ করুন:
import android.app.Application;
public final class BaseApplication extends Application {
private BaseActivityLifecycleCallbacks baseALC;
@Override
public void onCreate() {
super.onCreate();
baseALC = new BaseActivityLifecycleCallbacks();
this.registerActivityLifecycleCallbacks(baseALC);
}
public BaseActivityLifecycleCallbacks getBaseALC() {
return baseALC;
}
}
অন্যান্য ক্রিয়াকলাপের স্থিতির জন্য কার্যকলাপ থেকে কোথাও কোকেকে:
private void checkAndLaunchHomeScreen() {
Application application = getApplication();
if (application instanceof BaseApplication) {
BaseApplication baseApplication = (BaseApplication) application;
if (baseApplication.getBaseALC().getHomeState() == null || baseApplication.getBaseALC().getHomeState() == ActivityState.DESTROYED) {
//Do anything you want
}
}
}
https://developer.android.com/reference/android/app/Application.ActivityLifecycleCallbacks.html