问题描述
我坚持建议的实施（对于Android https://developer.android.com/training/tv/discovery/recommendations-row
似乎一切都已完成，但服务甚至没有启动。
我已经在清单中完成了下一个操作：
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<service
android:name=".additional.androidTV.UpdateRecommendationsService"
android:enabled="true" />
<receiver android:name=".additional.androidTV.BootupActivity"
android:enabled="true"
android:exported="false">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>
我的UpdateRecommendationsService类：
public class UpdateRecommendationsService extends IntentService {
private static final String TAG = "UpdateRecommendationsSe";
private static final int MAX_RECOMMENDATIONS = 3;
public UpdateRecommendationsService() {
super("RecommendationService");
}
@Override
protected void onHandleIntent(Intent intent) {
Log.d(TAG,"Updating recommendation cards");
HashMap<String,List<POJOMovie>> recommendations = new HashMap<>();
if (recommendations == null) return;
int count = 0;
try {
RecommendationBuilder builder = new RecommendationBuilder()
.setContext(getApplicationContext())
.setSmallIcon(R.drawable.gotposter);
for (Map.Entry<String,List<POJOMovie>> entry : recommendations.entrySet()) {
for (POJOMovie movie : entry.getValue()) {
Log.d(TAG,"Recommendation - " + movie.getTitle());
builder.setBackground("")
.setId(count + 1)
.setPriority(MAX_RECOMMENDATIONS - count)
.setTitle("test Title")
.setDescription("test Description")
// .setimage(movie.getPoster())
.setIntent(buildPendingIntent(movie))
.build();
if (++count >= MAX_RECOMMENDATIONS) {
break;
}
}
if (++count >= MAX_RECOMMENDATIONS) {
break;
}
}
} catch (IOException e) {
Log.e(TAG,"Unable to update recommendation",e);
}
}
private PendingIntent buildPendingIntent(POJOMovie movie) {
Intent detailsIntent = new Intent(this,MainActivity.class);
// detailsIntent.putExtra("POJOMovie",movie);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(MainActivity.class);
stackBuilder.addNextIntent(detailsIntent);
// Ensure a unique PendingIntents,otherwise all
// recommendations end up with the same PendingIntent
detailsIntent.setAction(movie.getId());
PendingIntent pendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
return pendingIntent;
}
}
RecommendationBuilder类：
public class RecommendationBuilder {
private static final String TAG = "RecommendationBuilder";
private static final String BACKGROUND_URI_PREFIX = "content://com.example.android.tvleanback.recommendation/";
private Context mContext;
private int mId;
private int mPriority;
private int mSmallIcon;
String mTitle;
String mDescription;
String mImageUri;
String mBackgroundUri;
private PendingIntent mIntent;
private notificationmanager mnotificationmanager;
private int mProgress = -1;
public RecommendationBuilder() {
}
public RecommendationBuilder setId(int id) {
mId = id;
return this;
}
public RecommendationBuilder setContext(Context context) {
mContext = context;
return this;
}
public RecommendationBuilder setSmallIcon(int resourceId) {
mSmallIcon = resourceId;
return this;
}
public RecommendationBuilder setPriority(int priority) {
mPriority = priority;
return this;
}
public RecommendationBuilder setIntent(PendingIntent intent) {
mIntent = intent;
return this;
}
public RecommendationBuilder setTitle(String title) {
mTitle = title;
return this;
}
public RecommendationBuilder setDescription(String description) {
mDescription = description;
return this;
}
public RecommendationBuilder setimage(String uri) {
mImageUri = uri;
return this;
}
public RecommendationBuilder setBackground(String uri) {
mBackgroundUri = uri;
return this;
}
public Notification build() throws IOException {
if (mnotificationmanager == null) {
mnotificationmanager = (notificationmanager) mContext
.getSystemService(Context.NOTIFICATION_SERVICE);
}
Bundle extras = new Bundle();
Notification notification = new NotificationCompat.BigPictureStyle(
new NotificationCompat.Builder(mContext)
.setContentTitle("test Title2")
.setContentText("test Description2")
.setPriority(mPriority)
.setLocalOnly(true)
.setongoing(true)
.setColor(mContext.getResources().getColor(R.color.red))
.setCategory(Notification.CATEGORY_RECOMMENDATION)
// .setLargeIcon(R.drawable.gotposter)
.setSmallIcon(mSmallIcon)
.setContentIntent(mIntent)
.setExtras(extras))
.build();
mnotificationmanager.notify(mId,notification);
mnotificationmanager = null;
return notification;
}
}
和BootupActivity：
public class BootupActivity extends broadcastReceiver {
private static final String TAG = "BootupActivity";
private static final long INITIAL_DELAY = 5000;
@Override
public void onReceive(Context context,Intent intent) {
Log.d(TAG,"BootupActivity initiated");
if (android.os.Build.VERSION.SDK_INT <= Build.VERSION_CODES.N_MR1) {
if (Objects.requireNonNull(intent.getAction()).endsWith(Intent.ACTION_BOOT_COMPLETED)) {
scheduleRecommendationUpdate(context);
}
} else{
Log.d(TAG,"other service for higher API started");
}
}
private void scheduleRecommendationUpdate(Context context) {
Log.d(TAG,"Scheduling recommendations update");
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent recommendationIntent = new Intent(context,UpdateRecommendationsService.class);
PendingIntent alarmIntent = PendingIntent.getService(context,recommendationIntent,0);
alarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,INITIAL_DELAY,// AlarmManager.INTERVAL_HALF_HOUR,AlarmManager.INTERVAL_FIFTEEN_MINUTES,alarmIntent);
}.
}
据我了解，当应用启动时，服务也应自动启动。
我已经为此类中的每一行设置了调试点，但没有任何反应。我的代码有什么问题？我忘了清单上的东西吗？
UPD 21.09.2020 ：很遗憾，仍在寻找答案。
解决方法
似乎您的BroadcastReceiver设置为不导出，这意味着它无法从具有不同用户ID的任何内容（如果您未在清单中明确设置，则仅表示自身）接收消息。如果您设置exported = true，则应该使您的接收器能够获得启动完成消息。请注意，在安装该应用程序后，您必须至少运行一次该应用程序，才能接收广播。
作为旁注，由于“活动”在Android中是非常具体的事情，因此建议您不要将您的BroadcastReceiver称为“ BootupActivity”。诸如BootupReceiver之类的东西更加清晰。