我已经能够成功创建一个应用程序（感谢davidgyoung！），它在后台监视信标，然后在后台打开应用程序。
现在我希望我的应用首先在状态栏中提示通知，说明＆＃34;我已经检测到了一个灯塔！你想打开app吗？＆＃34;。然后用户点击通知打开应用程序或关闭它并忽略通知。
我已经搜索过堆栈溢出的东西，但是找不到与信标有关的东西已经取得了很大的成功。我确实找到了这个关于添加StatusBar通知的页面，但我没有取得多大成功。
特别是在我的BeaconReferenceApplication.java和MonitoringActivity.java文件中。我认为我将代码放在正确的位置（didEnterRegion之后），但我有notificationButton，setLatestEventInfo等区域的未解析类。有人可以帮忙吗？提前谢谢！
BeaconReferenceApplication.java：
import android.app.Application;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TaskStackBuilder;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
import org.altbeacon.beacon.BeaconManager;
import org.altbeacon.beacon.BeaconParser;
import org.altbeacon.beacon.Identifier;
import org.altbeacon.beacon.Region;
import org.altbeacon.beacon.powersave.BackgroundPowerSaver;
import org.altbeacon.beacon.startup.RegionBootstrap;
import org.altbeacon.beacon.startup.BootstrapNotifier;
public class BeaconReferenceApplication extends Application implements BootstrapNotifier {
private static final String TAG = "BeaconReferenceApp";
private RegionBootstrap regionBootstrap;
private BackgroundPowerSaver backgroundPowerSaver;
private boolean haveDetectedBeaconsSinceBoot = false;
private MonitoringActivity monitoringActivity = null;
public void onCreate() {
super.onCreate();
BeaconManager beaconManager = org.altbeacon.beacon.BeaconManager.getInstanceForApplication(this);
// By default the AndroidBeaconLibrary will only find AltBeacons. If you wish to make it
// find a different type of beacon, you must specify the byte layout for that beacon's
// advertisement with a line like below. The example shows how to find a beacon with the
// same byte layout as AltBeacon but with a beaconTypeCode of 0xaabb. To find the proper
// layout expression for other beacon types, do a web search for "setBeaconLayout"
// including the quotes.
//
beaconManager.getBeaconParsers().clear();
beaconManager.getBeaconParsers().add(new BeaconParser().
setBeaconLayout("s:0-1=feaa,m:2-2=00,p:3-3:-41,i:4-13,i:14-19"));
Log.d(TAG, "setting up background monitoring for beacons and power saving");
// wake up the app when a beacon is seen
Region region = new Region("backgroundRegion", Identifier.parse("2F234454F4911BA9FFA6"), null, null);
regionBootstrap = new RegionBootstrap(this, region);
// simply constructing this class and holding a reference to it in your custom Application
// class will automatically cause the BeaconLibrary to save battery whenever the application
// is not visible. This reduces bluetooth power usage by about 60%
backgroundPowerSaver = new BackgroundPowerSaver(this);
// If you wish to test beacon detection in the Android Emulator, you can use code like this:
// BeaconManager.setBeaconSimulator(new TimedBeaconSimulator() );
// ((TimedBeaconSimulator) BeaconManager.getBeaconSimulator()).createTimedSimulatedBeacons();
}
@Override
public void didEnterRegion(Region arg0) {
// In this example, this class sends a notification to the user whenever a Beacon
// matching a Region (defined above) are first seen.
Log.d(TAG, "did enter region.");
if (!haveDetectedBeaconsSinceBoot) {
Log.d(TAG, "sending notification to StatusBar");
@SuppressWarnings("deprecation")
private void Notify(String notificationTitle, String notificationMessage) {
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
@SuppressWarnings("deprecation")
Notification notification = new Notification(R.mipmap.ic_launcher,
"New Message", System.currentTimeMillis());
Intent notificationIntent = new Intent(this, MonitoringActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
notificationIntent, 0);
notification.setLatestEventInfo(MonitoringActivity.this, notificationTitle,
notificationMessage, pendingIntent);
notificationManager.notify(9999, notification);
}
}
} else {
if (monitoringActivity != null) {
Log.d(TAG, "auto launching MainActivity");
// The very first time since boot that we detect an beacon, we launch the
// MainActivity
Intent intent = new Intent(this, MonitoringActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Important: make sure to add android:launchMode="singleInstance" in the manifest
// to keep multiple copies of this activity from getting created if the user has
// already manually launched the app.
this.startActivity(intent);
haveDetectedBeaconsSinceBoot = true;
}
}
}
@Override
public void didExitRegion(Region region) {
if (monitoringActivity != null) {
Log.d(TAG,"I no longer see a beacon.");
}
}
@Override
public void didDetermineStateForRegion(int state, Region region) {
if (monitoringActivity != null) {
Log.d(TAG,"I have just switched from seeing/not seeing beacons: " + state);
}
}
private void sendNotification() {
NotificationCompat.Builder builder =
new NotificationCompat.Builder(this)
.setContentTitle("Beacon Reference Application")
.setContentText("An beacon is nearby.")
.setSmallIcon(R.mipmap.ic_launcher);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addNextIntent(new Intent(this, MonitoringActivity.class));
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
builder.setContentIntent(resultPendingIntent);
NotificationManager notificationManager =
(NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1, builder.build());
}
public void setMonitoringActivity(MonitoringActivity activity) {
this.monitoringActivity = activity;
}
}
MonitoringActivity.java：
import android.Manifest;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.os.Build;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.util.Log;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import org.altbeacon.beacon.BeaconManager;
public class MonitoringActivity extends Activity {
protected static final String TAG = "MonitoringActivity";
private static final int PERMISSION_REQUEST_COARSE_LOCATION = 1;
private WebView mWebView;
ProgressBar progressBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
Log.d(TAG, "onCreate");
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_monitoring);
// code for button notification
Button notificationButton = (Button) findViewById(R.id.notificationButton);
notificationButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Notify("Title: Meeting with Business",
"Msg:Pittsburg 10:00 AM EST ");
}
});
// code for button notification
mWebView = (WebView) findViewById(R.id.activity_main_webview);
progressBar = (ProgressBar) findViewById(R.id.progressBar1);
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
mWebView.loadUrl("http://communionchapelefca.org/edy-home");
mWebView.setWebViewClient(new MyAppWebViewClient());
verifyBluetooth();
Log.d(TAG, "Application just launched");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
// Android M Permission check
if (this.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("This app needs location access");
builder.setMessage("Please grant location access so this app can detect beacons in the background.");
builder.setPositiveButton(android.R.string.ok, null);
builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
@TargetApi(23)
@Override
public void onDismiss(DialogInterface dialog) {
requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION},
PERMISSION_REQUEST_COARSE_LOCATION);
}
});
builder.show();
}
}
}
private class HelloWebViewClient extends WebViewClient{
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
}
@Override
public boolean shouldOverrideUrlLoading(WebView webView, String url)
{
webView.loadUrl(url);
return true;
}
@Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
super.onPageFinished(view, url);
progressBar.setVisibility(view.GONE);
}
}
@Override
public void onBackPressed() {
if(mWebView.canGoBack()) {
mWebView.goBack();
} else {
super.onBackPressed();
}
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case PERMISSION_REQUEST_COARSE_LOCATION: {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Log.d(TAG, "coarse location permission granted");
} else {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Functionality limited");
builder.setMessage("Since location access has not been granted, this app will not be able to discover beacons when in the background.");
builder.setPositiveButton(android.R.string.ok, null);
builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
}
});
builder.show();
}
return;
}
}
}
public void onRangingClicked(View view) {
Intent myIntent = new Intent(this, RangingActivity.class);
this.startActivity(myIntent);
}
@Override
public void onResume() {
super.onResume();
((BeaconReferenceApplication) this.getApplicationContext()).setMonitoringActivity(this);
}
@Override
public void onPause() {
super.onPause();
((BeaconReferenceApplication) this.getApplicationContext()).setMonitoringActivity(null);
}
private void verifyBluetooth() {
try {
if (!BeaconManager.getInstanceForApplication(this).checkAvailability()) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Bluetooth not enabled");
builder.setMessage("Please enable bluetooth in settings and restart this application.");
builder.setPositiveButton(android.R.string.ok, null);
builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
finish();
System.exit(0);
}
});
builder.show();
}
}
catch (RuntimeException e) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Bluetooth LE not available");
builder.setMessage("Sorry, this device does not support Bluetooth LE.");
builder.setPositiveButton(android.R.string.ok, null);
builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
finish();
System.exit(0);
}
});
builder.show();
}
}
}
答案 0 :(得分：0)
所以我可以使用Android Developers website for Notifications中的示例来修复我的问题。我使用了他们的示例代码，将其改编为我的使用，然后甚至进一步使用.bigText使我的通知看起来很棒。为了让我的应用程序正常运行，他们可以获得奖励和daviggyoung。谢谢！
我也不需要编辑我之前发布的MonitoringActivity.java。
最终BeaconReferenceApplication.java：
import android.app.Application;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TaskStackBuilder;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
import android.widget.RemoteViews;
import org.altbeacon.beacon.BeaconManager;
import org.altbeacon.beacon.BeaconParser;
import org.altbeacon.beacon.Identifier;
import org.altbeacon.beacon.Region;
import org.altbeacon.beacon.powersave.BackgroundPowerSaver;
import org.altbeacon.beacon.startup.RegionBootstrap;
import org.altbeacon.beacon.startup.BootstrapNotifier;
public class BeaconReferenceApplication extends Application implements BootstrapNotifier {
private static final String TAG = "BeaconReferenceApp";
private RegionBootstrap regionBootstrap;
private BackgroundPowerSaver backgroundPowerSaver;
private boolean haveDetectedBeaconsSinceBoot = false;
private MonitoringActivity monitoringActivity = null;
public void onCreate() {
super.onCreate();
BeaconManager beaconManager = org.altbeacon.beacon.BeaconManager.getInstanceForApplication(this);
// By default the AndroidBeaconLibrary will only find AltBeacons. If you wish to make it
// find a different type of beacon, you must specify the byte layout for that beacon's
// advertisement with a line like below. The example shows how to find a beacon with the
// same byte layout as AltBeacon but with a beaconTypeCode of 0xaabb. To find the proper
// layout expression for other beacon types, do a web search for "setBeaconLayout"
// including the quotes.
//
beaconManager.getBeaconParsers().clear();
beaconManager.getBeaconParsers().add(new BeaconParser().
setBeaconLayout("s:0-1=feaa,m:2-2=00,p:3-3:-41,i:4-13,i:14-19"));
Log.d(TAG, "setting up background monitoring for beacons and power saving");
// wake up the app when a beacon is seen
Region region = new Region("backgroundRegion", Identifier.parse("2F234454F4911BA9FFA6"), null, null);
regionBootstrap = new RegionBootstrap(this, region);
// simply constructing this class and holding a reference to it in your custom Application
// class will automatically cause the BeaconLibrary to save battery whenever the application
// is not visible. This reduces bluetooth power usage by about 60%
backgroundPowerSaver = new BackgroundPowerSaver(this);
// If you wish to test beacon detection in the Android Emulator, you can use code like this:
// BeaconManager.setBeaconSimulator(new TimedBeaconSimulator() );
// ((TimedBeaconSimulator) BeaconManager.getBeaconSimulator()).createTimedSimulatedBeacons();
}
@Override
public void didEnterRegion(Region arg0) {
// In this example, this class sends a notification to the user whenever a Beacon
// matching a Region (defined above) are first seen.
Log.d(TAG, "did enter region.");
if (!haveDetectedBeaconsSinceBoot) {
Log.d(TAG, "sending notification to StatusBar");
//begin code for notification
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("Message from Communion Chapel")
.setContentText("Welcome! Thanks for coming!")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText("We noticed that you're here today, click here to open the app and get today's Sermon Notes and Bulletin."))
.setAutoCancel(true);
;
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(this, MonitoringActivity.class);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(MonitoringActivity.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on.
mNotificationManager.notify(123, mBuilder.build());
}
}
@Override
public void didExitRegion(Region region) {
if (monitoringActivity != null) {
Log.d(TAG,"I no longer see a beacon.");
}
}
@Override
public void didDetermineStateForRegion(int state, Region region) {
if (monitoringActivity != null) {
Log.d(TAG,"I have just switched from seeing/not seeing beacons: " + state);
}
}
private void sendNotification() {
NotificationCompat.Builder builder =
new NotificationCompat.Builder(this)
.setContentTitle("Beacon Reference Application")
.setContentText("A beacon is nearby.")
.setSmallIcon(R.drawable.app_icon);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addNextIntent(new Intent(this, MonitoringActivity.class));
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
builder.setContentIntent(resultPendingIntent);
NotificationManager notificationManager =
(NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1, builder.build());
}
public void setMonitoringActivity(MonitoringActivity activity) {
this.monitoringActivity = activity;
}
}