我补充说,这是我的清单文件 –
<receiver android:name=".ServiceReceiver">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
</application>
<uses-permission android:name="android.permission.READ_PHONE_STATE">
</uses-permission>
那么我的服务类就是这样 –
public class ServiceReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context,Intent intent) {
MyPhoneStateListener phoneListener = new MyPhoneStateListener();
TelephonyManager telephony = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
telephony.listen(phoneListener,PhoneStateListener.LISTEN_CALL_STATE);
}
}
我的PhoneStateListener是 –
public class MyPhoneStateListener extends PhoneStateListener {
public void onCallStateChanged(int state,String incomingNumber) {
Log.i("telephony-example","State changed: " + stateName(state));
}
String stateName(int state) {
switch (state) {
case TelephonyManager.CALL_STATE_IDLE:
Log.d("DEBUG","***********IDLE********");
return "Idle";
case TelephonyManager.CALL_STATE_OFFHOOK:
Log.d("DEBUG","***********OFFHOOK********");
return "Off hook";
case TelephonyManager.CALL_STATE_RINGING:
Log.d("DEBUG","***********RINGING********");
return "Ringing";
}
return Integer.toString(state);
}
}
我可以看到IDLE状态.
但是当我打电话给我没有铃声状态.为什么？
解决方法
我想你正在混合两种方法来获取电话状态.如果您使用意向过滤器和广播接收器,则在接收器中不需要调用TelephonyManager的listen().只需检查收到的意图如下：
public void onReceive(Context context,Intent intent) {
String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
String number = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
if (TelephonyManager.EXTRA_STATE_RINGING.equals(state))
{
Log.d("MPR","Its Ringing [" + number + "]");
}
if (TelephonyManager.EXTRA_STATE_IDLE.equals(state))
{
Log.d("MPR","Its Idle");
}
if (TelephonyManager.EXTRA_STATE_OFFHOOK.equals(state))
{
Log.d("MPR","Its OffHook");
}
}
