android.support.v4.app.FragmentActivity#getApplicationContext ( )源码实例Demo

public static void signOut(GoogleApiClient mGoogleApiClient, FragmentActivity fragmentActivity) {
    FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
    if (user != null) {
        ProfileInteractor.getInstance(fragmentActivity.getApplicationContext())
                .removeRegistrationToken(FirebaseInstanceId.getInstance().getToken(), user.getUid());

        for (UserInfo profile : user.getProviderData()) {
            String providerId = profile.getProviderId();
            logoutByProvider(providerId, mGoogleApiClient, fragmentActivity);
        }
        logoutFirebase(fragmentActivity.getApplicationContext());
    }

    if (clearImageCacheAsyncTask == null) {
        clearImageCacheAsyncTask = new ClearImageCacheAsyncTask(fragmentActivity.getApplicationContext());
        clearImageCacheAsyncTask.execute();
    }
}
 

public static void signOut(GoogleApiClient mGoogleApiClient, FragmentActivity fragmentActivity) {
    FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
    if (user != null) {
        ProfileInteractor.getInstance(fragmentActivity.getApplicationContext())
                .removeRegistrationToken(FirebaseInstanceId.getInstance().getToken(), user.getUid());

        for (UserInfo profile : user.getProviderData()) {
            String providerId = profile.getProviderId();
            logoutByProvider(providerId, mGoogleApiClient, fragmentActivity);
        }
        logoutFirebase(fragmentActivity.getApplicationContext());
    }

    if (clearImageCacheAsyncTask == null) {
        clearImageCacheAsyncTask = new ClearImageCacheAsyncTask(fragmentActivity.getApplicationContext());
        clearImageCacheAsyncTask.execute();
    }
}
 

/**
 * Init Loader Manager for Activity
 * @param activity activity
 * @param callbacks callbacks
 * @param args arguments for loader construction
 * @param <T>
 */
public <T> LoaderManagerCreator(FragmentActivity activity, LoaderManager.LoaderCallbacks<T> callbacks, Bundle args) {
    this(
            activity.getApplicationContext(),
            activity.getSupportLoaderManager(),
            (int) HashUtil.longHash(((Object) activity).getClass(), activity.getIntent(), callbacks),
            callbacks,
            args
    );
}