我正在尝试构建一个应用程序来向我的智能手表发布通知。我找到了一个很棒的通知示例应用程序，我已经对其进行了修改以进行测试，它可以按预期工作。我发现我需要显示的扩展信息在 RemoteViews bigContentView 中。我找到了一个名为 Botification 的程序，它能够放大我正在寻找的视图。它在他的应用程序中按预期工作。我正在尝试将他的方法与我的方法结合起来，但没有运气。我还找到了 Notify Me! 的一些来源，它使用相同类型的方法来拉取通知远程视图。
这是我的第一个真正的 Android 应用程序，我是 Java 新手。我已经工作了大约一个月，并且从这个网站上的帖子和浏览网页中学到了很多东西。我浏览了 Lynda.com 的 Java Essentials 和 Android Essentials 课程。还发现这对我很有用，因为是 Java 新手，并且在 C++ 方面只有一点背景：http: //chortle.ccsu.edu/java5/index.html。
我使用的一些信息来源： 从 parcelable、contentView 或 contentIntent和http://www.kpbird.com/2013/07/android-notificationlistenerservice.html中提取通知文本
任何帮助，将不胜感激。Botification 应用程序使用处理程序和不同的方式来处理 onPosted 请求，这让我想知道这是否是我的问题。任何可以使我的大脑发胖的文档或教程都将受到欢迎。
我包括了使用此远程视图功能的代码部分，并希望足以说明我如何使其工作。
MainActivity.java 公共类 MainActivity 扩展 Activity {
private TextView txtView;
private NotificationReceiver nReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtView = (TextView) findViewById(R.id.textView);
nReceiver = new NotificationReceiver();
IntentFilter filter = new IntentFilter();
filter.addAction("com.example.snotify.NOTIFICATION_LISTENER");
registerReceiver(nReceiver,filter);
}
nlservice.java 公共类 NLService 扩展 NotificationListenerService {
private String TAG = "NLService";
private NLServiceReceiver nlreceiver;
@Override
public void onCreate() {
super.onCreate();
nlreceiver = new NLServiceReceiver();
IntentFilter filter = new IntentFilter();
filter.addAction("com.example.snotify.NOTIFICATION_LISTENER_SERVICE");
registerReceiver(nlreceiver,filter);
}
@Override
public void onDestroy() {
super.onDestroy();
unregisterReceiver(nlreceiver);
}
@Override
public void onNotificationPosted(StatusBarNotification sbn) {
Notification n = sbn.getNotification();
Log.i(TAG,"!!!onNotificationPosted");
Log.i(TAG,"ID :" + sbn.getId() + "Ticker:" + n.tickerText + "Pkg:" + sbn.getPackageName());
String text = NotiCrunch.extractTextFromNotification(NLService.this, n);
String description = "";
if (n.tickerText != null) {
description = n.tickerText.toString();
}
Intent i = new Intent("com.example.snotify.NOTIFICATION_LISTENER");
i.putExtra("notification_event","Notification Posted\nPackage:" + sbn.getPackageName() + "\nID:" + sbn.getId()
+ "\nText:" + text
+ "\nTag:" + sbn.getTag() + "\nTicker:" + description + "\n\n");
sendBroadcast(i);
}
noticrunch.java
公共类 NotiCrunch {
private static String TAG = "NotiCrunch";
private static final int TIMESTAMPID = 16908388;
private static void extractViewType(ArrayList<View> outViews, Class<TextView> viewtype, View source) {
if (ViewGroup.class.isInstance(source)) {
ViewGroup vg = (ViewGroup) source;
for (int i = 0; i < vg.getChildCount(); i++) {
extractViewType(outViews, viewtype, vg.getChildAt(i));
}
} else if(viewtype.isInstance(source)) {
outViews.add(source);
}
}
public static String extractTextFromNotification(Service service, Notification notification) {
ArrayList<String> result = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
result = extractTextFromNotification(service, notification.bigContentView);
Log.d(TAG, "It tried Big View");
Log.d(TAG, "Ticker:" + notification.tickerText);
}
if (result == null) {
result = extractTextFromNotification(service, notification.contentView);
Log.d(TAG, "It tried little view");
}
if (result == null){
Log.d(TAG, "It is returning null");
return "";
}
return TextUtils.join("\n", result);
}
private static ArrayList<String> extractTextFromNotification(Service service, RemoteViews view) {
LayoutInflater inflater = (LayoutInflater) service.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
ArrayList<String> result = new ArrayList<String>();
if (view == null) {
Log.d(TAG, "Initial view is Empty");
return null;
}
try {
ViewGroup localView = (ViewGroup) inflater.inflate(view.getLayoutId(), null);
view.reapply(service.getApplicationContext(), localView);
ArrayList<View> outViews = new ArrayList<View>();
extractViewType(outViews, TextView.class, localView);
for (View ttv: outViews) {
TextView tv = (TextView) ttv;
String txt = tv.getText().toString();
if (!TextUtils.isEmpty(txt) && tv.getId() != TIMESTAMPID) {
result.add(txt);
}
}
} catch (Exception e) {
Log.d(TAG, "FAILED to load notification! " + e.toString());
Log.wtf(TAG, e);
return null;
}
Log.d(TAG, "Return result" + result);
return result;
}
谢谢你。