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Ensure GenericForegroundService is started with startForegroundService.

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If we don't, we run the risk of the app crashing if the service is
started in the background.
This commit is contained in:
Greyson Parrelli 2018-10-08 17:44:23 -07:00
parent 704715de8f
commit 4c63428b71
1 changed files with 39 additions and 19 deletions
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58
src/org/thoughtcrime/securesms/service/GenericForegroundService.java
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@ -9,15 +9,18 @@ import android.os.IBinder;
import android.support.annotation.NonNull; import android.support.annotation.NonNull;
import android.support.annotation.Nullable; import android.support.annotation.Nullable;
import android.support.v4.app.NotificationCompat; import android.support.v4.app.NotificationCompat;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import org.thoughtcrime.securesms.ConversationListActivity; import org.thoughtcrime.securesms.ConversationListActivity;
import org.thoughtcrime.securesms.R; import org.thoughtcrime.securesms.R;
import org.thoughtcrime.securesms.notifications.NotificationChannels; import org.thoughtcrime.securesms.notifications.NotificationChannels;
import org.whispersystems.libsignal.util.guava.Preconditions;
import java.util.concurrent.atomic.AtomicInteger;
public class GenericForegroundService extends Service { public class GenericForegroundService extends Service {
private static final String TAG = GenericForegroundService.class.getSimpleName();
private static final int NOTIFICATION_ID = 827353982; private static final int NOTIFICATION_ID = 827353982;
private static final String EXTRA_TITLE = "extra_title"; private static final String EXTRA_TITLE = "extra_title";
private static final String EXTRA_CHANNEL_ID = "extra_channel_id"; private static final String EXTRA_CHANNEL_ID = "extra_channel_id";
@ -25,7 +28,9 @@ public class GenericForegroundService extends Service {
private static final String ACTION_START = "start"; private static final String ACTION_START = "start";
private static final String ACTION_STOP = "stop"; private static final String ACTION_STOP = "stop";
private final AtomicInteger foregroundCount = new AtomicInteger(0); private int foregroundCount;
private String activeTitle;
private String activeChannelId;
@Override @Override
public void onCreate() { public void onCreate() {
@ -34,36 +39,51 @@ public class GenericForegroundService extends Service {
@Override @Override
public int onStartCommand(Intent intent, int flags, int startId) { public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null && ACTION_START.equals(intent.getAction())) handleStart(intent); synchronized (GenericForegroundService.class) {
else if (intent != null && ACTION_STOP.equals(intent.getAction())) handleStop(); if (intent != null && ACTION_START.equals(intent.getAction())) handleStart(intent);
else if (intent != null && ACTION_STOP.equals(intent.getAction())) handleStop();
else throw new IllegalStateException("Action needs to be START or STOP.");
return START_NOT_STICKY; return START_NOT_STICKY;
}
} }
private void handleStart(@NonNull Intent intent) { private void handleStart(@NonNull Intent intent) {
String title = intent.getStringExtra(EXTRA_TITLE); String title = Preconditions.checkNotNull(intent.getStringExtra(EXTRA_TITLE));
String channelId = intent.getStringExtra(EXTRA_CHANNEL_ID); String channelId = Preconditions.checkNotNull(intent.getStringExtra(EXTRA_CHANNEL_ID));
assert title != null; foregroundCount++;
assert channelId != null;
if (foregroundCount.getAndIncrement() == 0) { if (foregroundCount == 1) {
startForeground(NOTIFICATION_ID, new NotificationCompat.Builder(this, channelId) Log.d(TAG, "First request. Title: " + title + " ChannelId: " + channelId);
.setSmallIcon(R.drawable.ic_signal_grey_24dp) activeTitle = title;
.setContentTitle(title) activeChannelId = channelId;
.setContentIntent(PendingIntent.getActivity(this, 0, new Intent(this, ConversationListActivity.class), 0))
.build());
} }
postObligatoryForegroundNotification(activeTitle, activeChannelId);
} }
private void handleStop() { private void handleStop() {
if (foregroundCount.decrementAndGet() == 0) { postObligatoryForegroundNotification(activeTitle, activeChannelId);
foregroundCount--;
if (foregroundCount == 0) {
Log.d(TAG, "Last request. Ending foreground service.");
stopForeground(true); stopForeground(true);
stopSelf(); stopSelf();
} }
} }
private void postObligatoryForegroundNotification(String title, String channelId) {
startForeground(NOTIFICATION_ID, new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.ic_signal_grey_24dp)
.setContentTitle(title)
.setContentIntent(PendingIntent.getActivity(this, 0, new Intent(this, ConversationListActivity.class), 0))
.build());
}
@Nullable @Nullable
@Override @Override
public IBinder onBind(Intent intent) { public IBinder onBind(Intent intent) {
@ -80,13 +100,13 @@ public class GenericForegroundService extends Service {
intent.putExtra(EXTRA_TITLE, task); intent.putExtra(EXTRA_TITLE, task);
intent.putExtra(EXTRA_CHANNEL_ID, channelId); intent.putExtra(EXTRA_CHANNEL_ID, channelId);
context.startService(intent); ContextCompat.startForegroundService(context, intent);
} }
public static void stopForegroundTask(@NonNull Context context) { public static void stopForegroundTask(@NonNull Context context) {
Intent intent = new Intent(context, GenericForegroundService.class); Intent intent = new Intent(context, GenericForegroundService.class);
intent.setAction(ACTION_STOP); intent.setAction(ACTION_STOP);
context.startService(intent); ContextCompat.startForegroundService(context, intent);
} }
} }