所以我的应用程序在耳机插件上显示一个通知图标,如果移除了耳机,它也会自行销毁。但这只适用于应用程序已打开的情况。 我怎么能这样做才能检测到耳机插件并在后台运行图标?这是检测耳机是否插入的类别
public class MusicIntentReceiver extends BroadcastReceiver {
int NOTIFICATION_ID = 1234567890;
NotificationManager mNotificationManager;
@Override public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_HEADSET_PLUG)) {
int state = intent.getIntExtra("state", -1);
switch (state) {
case 0:
Log.d("unplugged", "Headset was unplugged");
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.cancel(NOTIFICATION_ID);
Toast unpluggedToast = Toast.makeText(context, "Headset has been disconnected", Toast.LENGTH_SHORT);
unpluggedToast.show();
break;
case 1:
Log.d("plugged", "Headset is plugged");
mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
showNotification(context, R.drawable.notification_icon, "short", false);
Toast pluggedToast = Toast.makeText(context, "Headset has been connected", Toast.LENGTH_SHORT);
pluggedToast.show();
break;
default:
Log.d("uh", "I have no idea what the headset state is");
Toast defaultToast = Toast.makeText(context, "No headset detected", Toast.LENGTH_SHORT);
defaultToast.show();
}
}
}
private void showNotification(Context context, int statusBarIconID, String string, boolean showIconOnly) {
Intent contentIntent = new Intent();
//Text that it says in the notification area when the notification appears
String dropDownText = "Notification";
Notification n = new Notification(R.drawable.notification_icon, "Notification", System.currentTimeMillis());
n.flags = Notification.FLAG_ONGOING_EVENT;
Intent intent=new Intent(context,MainActivity.class); //Activity that will be launched if notification is clicked
PendingIntent pending=PendingIntent.getActivity(context, 0, intent, 0);
n.setLatestEventInfo(context, "Notiication Icon", "Touch for more options", pending);
mNotificationManager.notify(NOTIFICATION_ID, n);
}
}
我认为你必须制作一个接收器或类似的东西,所以我做了,但我对这些东西真的很新,所以我不确定它是什么和东西。这是我的大部分清单,其中包括接收者和权限
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.app.notificationicon"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.ACTION_HEADSET_PLUG"/>
<uses-permission android:name="android.permission.VIBRATE"/>
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<receiver
android:name=".MusicIntentReceiver"
android:enabled="true"
android:exported="true" >
<intent-filter>
<action android:name="android.intent.action.HEADSET_PLUG" />
</intent-filter>
</receiver>
<receiver android:name=".MusicIntentReceiver" >
<intent-filter>
<action android:name="android.intent.action.HEADSET_PLUG" />
</intent-filter>
</receiver>
<receiver android:name=".MusicIntentReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
</intent-filter>
</receiver>
<service
android:name=".MusicIntentReceiever"
android:enabled="true" />
这是我完成申请所要做的最后一件事,所以如果你能帮助我或指导我正确的方向,那就意味着很多。非常感谢你。