Android 未显示带有推送通知文本的图像
在我的情况下，Firebase文本推送通知工作正常，但推送通知中未显示图像。请告诉我可能的原因，并请更正我的代码，因为我是android studio的新手 MyFirebaseMessagingService.javaAndroid 未显示带有推送通知文本的图像,android,notifications,Android,Notifications,在我的情况下，Firebase文本推送通知工作正常，但推送通知中未显示图像。请告诉我可能的原因，并请更正我的代码，因为我是android studio的新手 MyFirebaseMessagingService.java package com.iaritoppers.firebaservice； 导入android.app.Notification； 导入android.app.NotificationManager； 导入android.content.Context； 导入android
package com.iaritoppers.firebaservice；
导入android.app.Notification；
导入android.app.NotificationManager；
导入android.content.Context；
导入android.graphics.Bitmap；
导入android.graphics.drawable.drawable；
导入android.media.Ringtone；
导入android.media.ringtonemager；
导入android.net.Uri；
导入android.os.Build；
导入android.os.Handler；
导入android.os.Looper；
导入androidx.annotation.RequiresApi；
导入androidx.core.app.NotificationCompat；
导入com.google.firebase.messaging.FirebaseMessagingService；
导入com.google.firebase.messaging.RemoteMessage；
导入com.iaritoppers.Config.Config；
导入com.iaritoppers.Helper.NotificationHelper；
导入com.iaritoppers.R；
导入com.squareup.picasso.picasso；
导入com.squareup.picasso.Target；
公共类MyFirebaseMessagingService扩展了FirebaseMessagingService{
目标=新目标（）{
@凌驾
已加载位图（位图位图，Picasso.LoadedFrom）{
if（Build.VERSION.SDK\u INT>=Build.VERSION\u code.O）
使用ImageLevel26（位图）显示通知；
其他的
用图像（位图）显示通知；
}
@凌驾
公共无效onBitmapFailed（Drawable errorDrawable）{
}
@凌驾
准备加载时的公共无效（可提取占位符可提取）{
}
};
@RequiresApi（api=Build.VERSION\u CODES.O）
private void showNotificationWithImageLevel26（位图）{
NotificationHelper=新的NotificationHelper（getBaseContext（））；
Notification.Builder=helper.getchannel（Config.title、Config.message、位图）；
helper.getManager（）.notify（0，builder.build（））；
}
私有void showNotificationWithImage（位图）{
NotificationCompat.BigPictureStyle style=新建NotificationCompat.BigPictureStyle（）；
style.setSummaryText（Config.message）；
大图片（位图）；
Uri defaultSound=RingtoneManager.getDefaultUri（RingtoneManager.TYPE_通知）；
NotificationCompat.Builder notificationBuilder=（NotificationCompat.Builder）新建NotificationCompat.Builder（getApplicationContext（））
.setSmallIcon（R.mipmap.ic_launcher_round）
.setAutoCancel（真）
.setSound（默认声音）
.setStyle（风格）；
NotificationManager=（NotificationManager）getSystemService（Context.NOTIFICATION\u服务）；
manager.notify（0，notificationBuilder.build（））；
}
@凌驾
收到消息时公共无效（RemoteMessage RemoteMessage）{
if（remoteMessage.getData（）！=null）
getImage（远程消息）；
}
私有void getImage（最终RemoteMessage RemoteMessage）{
Config.message=remoteMessage.getNotification（）.getBody（）；
Config.title=remoteMessage.getNotification（）.getTitle（）；
if（remoteMessage.getData（）！=null）{
Handler uiHandler=新处理程序（Looper.getMainLooper（））；
uiHandler.post（新的Runnable（）{
@凌驾
公开募捐{
Picasso.with（getApplicationContext（））
.load（remoteMessage.getData（）.get（“图像”））
.进入（目标）；
}
});
}
}
}String channelId = getString(R.string.default_notification_channel_id);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.notification_icon)
.setLargeIcon(bitmap)
.setStyle(new NotificationCompat.BigPictureStyle()
.bigPicture(bitmap))
.setContentTitle(remoteMessage.getNotification().getTitle())
.setContentText(messageBody)
.setAutoCancel(true)
.setBadgeIconType(NotificationCompat.BADGE_ICON_SMALL)
.setSound(defaultSoundUri)
.setPriority(Notification.PRIORITY_HIGH)
.setVibrate(new long[]{1000, 1000, 1000, 1000, 1000})
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
getString(R.string.default_notification_channel_name),
NotificationManager.IMPORTANCE_HIGH);
channel.setVibrationPattern(new long[]{1000, 1000, 1000, 1000, 1000});
channel.setShowBadge(true);
channel.enableVibration(true);
channel.enableLights(true);
notificationManager.createNotificationChannel(channel);
}
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
只需将此代码添加到MyFirebaseMessagingService文件中。。 将通知图像转换为位图
String channelId = getString(R.string.default_notification_channel_id);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.notification_icon)
.setLargeIcon(bitmap)
.setStyle(new NotificationCompat.BigPictureStyle()
.bigPicture(bitmap))
.setContentTitle(remoteMessage.getNotification().getTitle())
.setContentText(messageBody)
.setAutoCancel(true)
.setBadgeIconType(NotificationCompat.BADGE_ICON_SMALL)
.setSound(defaultSoundUri)
.setPriority(Notification.PRIORITY_HIGH)
.setVibrate(new long[]{1000, 1000, 1000, 1000, 1000})
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
getString(R.string.default_notification_channel_name),
NotificationManager.IMPORTANCE_HIGH);
channel.setVibrationPattern(new long[]{1000, 1000, 1000, 1000, 1000});
channel.setShowBadge(true);
channel.enableVibration(true);
channel.enableLights(true);
notificationManager.createNotificationChannel(channel);
}
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
完整推送通知代码：：
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = MyFirebaseMessagingService.class.getSimpleName();
Bitmap bitmap;
@Override
public void onNewToken(String s) {
super.onNewToken(s);
Log.e("NEW_TOKEN", s);
storeRegIdInPref(s);
}
private void storeRegIdInPref(String token) {
SharedPreferences pref = getApplicationContext().getSharedPreferences(Config.SHARED_PREF, 0);
SharedPreferences.Editor editor = pref.edit();
editor.putString("regId", token);
editor.commit();
}
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d(TAG, "From: " + remoteMessage.getFrom());
// Check if message contains a data payload.
if (remoteMessage.getData().size() > 0) {
Log.d(TAG, "Message data payload: " + remoteMessage.getData());
}
// Check if message contains a notification payload.
if (remoteMessage.getNotification() != null) {
Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
Bitmap bitmap = getBitmapfromUrl(remoteMessage.getNotification().getImageUrl().toString());
sendNotification_withImage(remoteMessage.getNotification().getBody(), remoteMessage,bitmap);
}
}
public Bitmap getBitmapfromUrl(String imageUrl) {
try {
URL url = new URL(imageUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap bitmap = BitmapFactory.decodeStream(input);
return bitmap;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
private void sendNotification_withImage(String messageBody, RemoteMessage remoteMessage, Bitmap bitmap) {
Intent intent = new Intent(this, MenuActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
String channelId = getString(R.string.default_notification_channel_id);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.notification_icon)
.setLargeIcon(bitmap)
.setStyle(new NotificationCompat.BigPictureStyle()
.bigPicture(bitmap))
.setContentTitle(remoteMessage.getNotification().getTitle())
.setContentText(messageBody)
.setAutoCancel(true)
.setBadgeIconType(NotificationCompat.BADGE_ICON_SMALL)
.setSound(defaultSoundUri)
.setPriority(Notification.PRIORITY_HIGH)
.setVibrate(new long[]{1000, 1000, 1000, 1000, 1000})
.setContentIntent(pendingIntent);
notificationBuilder.setDefaults(DEFAULT_SOUND | DEFAULT_VIBRATE);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
getString(R.string.default_notification_channel_name),
NotificationManager.IMPORTANCE_HIGH);
channel.setVibrationPattern(new long[]{1000, 1000, 1000, 1000, 1000});
channel.setShowBadge(true);
channel.enableVibration(true);
channel.enableLights(true);
notificationManager.createNotificationChannel(channel);
}
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
}完成推送通知代码：：
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = MyFirebaseMessagingService.class.getSimpleName();
Bitmap bitmap;
@Override
public void onNewToken(String s) {
super.onNewToken(s);
Log.e("NEW_TOKEN", s);
storeRegIdInPref(s);
}
private void storeRegIdInPref(String token) {
SharedPreferences pref = getApplicationContext().getSharedPreferences(Config.SHARED_PREF, 0);
SharedPreferences.Editor editor = pref.edit();
editor.putString("regId", token);
editor.commit();
}
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d(TAG, "From: " + remoteMessage.getFrom());
// Check if message contains a data payload.
if (remoteMessage.getData().size() > 0) {
Log.d(TAG, "Message data payload: " + remoteMessage.getData());
}
// Check if message contains a notification payload.
if (remoteMessage.getNotification() != null) {
Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
Bitmap bitmap = getBitmapfromUrl(remoteMessage.getNotification().getImageUrl().toString());
sendNotification_withImage(remoteMessage.getNotification().getBody(), remoteMessage,bitmap);
}
}
public Bitmap getBitmapfromUrl(String imageUrl) {
try {
URL url = new URL(imageUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap bitmap = BitmapFactory.decodeStream(input);
return bitmap;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
private void sendNotification_withImage(String messageBody, RemoteMessage remoteMessage, Bitmap bitmap) {
Intent intent = new Intent(this, MenuActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
String channelId = getString(R.string.default_notification_channel_id);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.notification_icon)
.setLargeIcon(bitmap)
.setStyle(new NotificationCompat.BigPictureStyle()
.bigPicture(bitmap))
.setContentTitle(remoteMessage.getNotification().getTitle())
.setContentText(messageBody)
.setAutoCancel(true)
.setBadgeIconType(NotificationCompat.BADGE_ICON_SMALL)
.setSound(defaultSoundUri)
.setPriority(Notification.PRIORITY_HIGH)
.setVibrate(new long[]{1000, 1000, 1000, 1000, 1000})
.setContentIntent(pendingIntent);
notificationBuilder.setDefaults(DEFAULT_SOUND | DEFAULT_VIBRATE);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
getString(R.string.default_notification_channel_name),
NotificationManager.IMPORTANCE_HIGH);
channel.setVibrationPattern(new long[]{1000, 1000, 1000, 1000, 1000});
channel.setShowBadge(true);
channel.enableVibration(true);
channel.enableLights(true);
notificationManager.createNotificationChannel(channel);
}
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
}如果“图像”是指大矩形图像？看，如果你说的图像是指大矩形图像？看见