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我想說明一個通知像在我的應用程序下面的卡扣：如何顯示GCM推送通知的自定義用戶界面？
我已經通過this問題this Github上的問題了。它說你必須將你的數據作爲消息中的有效載荷發送到GCM服務器，並且當用戶點擊通知時，你可以通過意圖在應用中訪問這些數據。
我發送的信息是：
body: {"to":"\/topics\/global","data":{"LOL":"abc","LOL1":"xyz"},"notification":{"icon":"icon","title":"App Notification Title","body":"qwerty","click_action":"notification_click_action","sound":"default"}}
這是我的GCM監聽服務的代碼：
public class MyGcmListenerService extends GcmListenerService {
VolleySingleton mVolleySingleton;
ImageLoader mImageLoader;
Bitmap bitmap;
/**
* Called when message is received.
*
* @param from SenderID of the sender.
* @param data Data bundle containing message data as key/value pairs.
* For Set of keys use data.keySet().
*/
// [START receive_message]
@Override
public void onMessageReceived(String from, Bundle data) {
Log.e("Message Received: ", from);
String title = data.getString("title");
System.out.println("Title "+ data.toString());
String subTitle = data.getString("subTitle");
String expandTitle = data.getString("expandTitle");
String imageUrl = data.getString("imageUrl");
String action = data.getString("action");
String offerAction = data.getString("offerAction");
String offerImageUrl = data.getString("offerImageUrl");
System.out.println(bundleToString(data));
sendNotification(data);
}
@Override
public void onDeletedMessages() {
// sendNotification("Deleted messages on server");
}
@Override
public void onMessageSent(String msgId) {
// sendNotification("Upstream message sent. Id=" + msgId);
}
@Override
public void onSendError(String msgId, String error) {
// sendNotification("Upstream message send error. Id=" + msgId + ", error" + error);
}
private void sendNotification(final Bundle data) {
if(data.getString("imageUrl") == null){
sendNotification(data,null);
} else {
mVolleySingleton = VolleySingleton.getInstance();
Handler uiHandler = new Handler(Looper.getMainLooper());
uiHandler.post(new Runnable() {
@Override
public void run() {
mImageLoader = mVolleySingleton.getImageLoader();
mImageLoader.get(data.getString("imageUrl"), new ImageLoader.ImageListener() {
@Override
public void onResponse(ImageLoader.ImageContainer response, boolean isImmediate) {
if (response.getBitmap() != null) {
bitmap = response.getBitmap();
sendNotification(data, bitmap);
}
}
@Override
public void onErrorResponse(VolleyError error) {
bitmap = null;/*BitmapFactory.decodeResource(getApplicationContext().getResources(),
R.mipmap.logo);*/
}
});
}
});
}
}
private void sendNotification(Bundle data,Bitmap bitmap){
String title = data.getString("title");
String subTitle = data.getString("subTitle");
String expandTitle = data.getString("expandTitle");
String imageUrl = data.getString("imageUrl");
String action = data.getString("action");
String offerAction = data.getString("offerAction");
String offerImageUrl = data.getString("offerImageUrl");
long defaultId = Long.parseLong(data.getString("Id"));
long defaulttitleId = Long.parseLong(data.getString("titleId"));
long defaultTagId = Long.parseLong(data.getString("tagId"));
Log.d("Test321", "in MyGcmListenerService Id = " + defaultId + " PtitleId = " +
defaulttitleId + " TagId = " + defaultTagId);
int smallIconDrawable;
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
smallIconDrawable = R.mipmap.logo;
} else {
smallIconDrawable = R.mipmap.logo;
}
Intent intent;
Bundle bundle = new Bundle();
if(defaultId != 0 && defaulttitleId != 0){
Log.d("Test123","Push to 2page");
intent = new Intent(this, DetailActivity.class);
bundle.putLong(KEY_ID,defaultId);
bundle.putLong(KEY_TITLE_ID, defaulttitleId);
bundle.putLong(KEY_TAGID, defaultTagId);
bundle.putLong("pushnotification",1);
intent.putExtras(bundle);
} else {
Log.d("Test123","push to mainactivity");
intent = new Intent(this, MainActivity.class);
}
intent.putExtra("pushnotification",action);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(smallIconDrawable)
.setLargeIcon(BitmapFactory.decodeResource(getApplication().getResources(),R.mipmap.logo))
.setContentTitle(title)
.setContentText(subTitle)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
if(bitmap != null){
notificationBuilder.setStyle(new NotificationCompat.BigPictureStyle().bigPicture(bitmap));
}else{
notificationBuilder.setStyle(new NotificationCompat.BigTextStyle().bigText(expandTitle));
}
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
public static String bundleToString(Bundle bundle) {
if (bundle == null) {
return null;
}
String string = "Bundle{";
for (String key : bundle.keySet()) {
string += " " + key + " => " + bundle.get(key) + ";";
}
string += " }Bundle";
return string;
}
}
成功接收的消息，通知顯示，但不正是我想要的因爲onMessageReceived()未被調用。只有當用戶單擊我的活動中由GCM發送的默認通知時，我纔可以獲取作爲鍵值對傳遞的數據。我看到很多應用程序顯示自定義通知。那麼，必須有某種方式來實現這種通知？任何幫助表示讚賞。
創建自己的通知，請按照下列[鏈接1]（http://stackoverflow.com/questions/12803557/display-alert-when-push-arrives ）和[link2]（http://stackoverflow.com/questions/18307967/to-show-push-notification-content-into-the-alert-dialog-when-application-is-eith）。這些將幫助你 – Masum
感謝您的這些。那麼，我不想彈出警報。我只想在通知區域中進行自定義通知。這兩個鏈接都描述瞭如何在通知到達時彈出警報。 – brainbreaker