android/Main: handle API26 NotificationChannel

This seems to be required on recent Android versions (tested with Android 10).
This is also required for android TV services (cf. next commit).

This is done using Java reflection so that the project doesn't depend on
android compat libs.
This commit is contained in:
Thomas Guillem 2020-03-25 22:08:17 +01:00 committed by Max Kellermann
parent e1c43ec65f
commit 9c15760c4d
2 changed files with 46 additions and 4 deletions

View File

@ -11,6 +11,7 @@
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
<application android:allowBackup="true"
android:icon="@drawable/icon"

View File

@ -21,6 +21,7 @@ package org.musicpd;
import android.annotation.TargetApi;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.ComponentName;
@ -35,6 +36,9 @@ import android.os.RemoteException;
import android.util.Log;
import android.widget.RemoteViews;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
public class Main extends Service implements Runnable {
private static final String TAG = "Main";
private static final String REMOTE_ERROR = "MPD process was killed";
@ -156,11 +160,36 @@ public class Main extends Service implements Runnable {
sendMessage(MSG_SEND_STATUS, mStatus, 0, mError);
}
private Notification.Builder createNotificationBuilderWithChannel() {
final NotificationManager notificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
if (notificationManager == null)
return null;
final String id = "org.musicpd";
final String name = "MPD service";
final int importance = 3; /* NotificationManager.IMPORTANCE_DEFAULT */
try {
Class<?> ncClass = Class.forName("android.app.NotificationChannel");
Constructor<?> ncCtor = ncClass.getConstructor(String.class, CharSequence.class, int.class);
Object nc = ncCtor.newInstance(id, name, importance);
Method nmCreateNotificationChannelMethod =
NotificationManager.class.getMethod("createNotificationChannel", ncClass);
nmCreateNotificationChannelMethod.invoke(notificationManager, nc);
Constructor nbCtor = Notification.Builder.class.getConstructor(Context.class, String.class);
return (Notification.Builder) nbCtor.newInstance(this, id);
} catch (Exception e)
{
Log.e(TAG, "error creating the NotificationChannel", e);
return null;
}
}
private void start() {
if (mThread != null)
return;
mThread = new Thread(this);
mThread.start();
final Intent mainIntent = new Intent(this, Settings.class);
mainIntent.setAction("android.intent.action.MAIN");
@ -168,13 +197,25 @@ public class Main extends Service implements Runnable {
final PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
mainIntent, PendingIntent.FLAG_CANCEL_CURRENT);
Notification notification = new Notification.Builder(this)
.setContentTitle(getText(R.string.notification_title_mpd_running))
Notification.Builder nBuilder;
if (Build.VERSION.SDK_INT >= 26 /* Build.VERSION_CODES.O */)
{
nBuilder = createNotificationBuilderWithChannel();
if (nBuilder == null)
return;
}
else
nBuilder = new Notification.Builder(this);
Notification notification = nBuilder.setContentTitle(getText(R.string.notification_title_mpd_running))
.setContentText(getText(R.string.notification_text_mpd_running))
.setSmallIcon(R.drawable.notification_icon)
.setContentIntent(contentIntent)
.build();
mThread = new Thread(this);
mThread.start();
startForeground(R.string.notification_title_mpd_running, notification);
startService(new Intent(this, Main.class));
}