[DESCRIPTION]
操作步骤：
1. 手机后台播音乐，设置一个闹钟
2. 打一通电话
3. 挂断电话
现象：
闹钟和音乐的声音会同时播放
[SOLUTION]
这是google 默认行为，若贵司一定要改，请参考以下方法：
请尝试按照如下方法进行修改：
php?mod=tag&id=6090" target="_blank" class="relatedlink">Frameworks\base\media\java\android\media\MediaFocusControl.java：
1、import packages：
import com.android.internal.telephony.ITelephony;
import android.os.ServiceManager;
2、增加获取当前Phone Call State的方法getPhoneCallState()：
private int getPhoneCallState(){
int phoneCallState = TelephonyManager.CALL_STATE_IDLE;
TelephonyManager telephonyManager =
(TelephonyManager)mContext.getSystEMService(Context.TELEPHONY_SERVICE);
ITelephony telephonyService =
ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE));
if (telephonyService != null) {
Log.w(TAG, "getPhoneCallState: mTelephonyService != null");
try {
phoneCallState = telephonyService.getPreciseCallState();
Log.w(TAG, "getPhoneCallState: telephonyService.getPreciseCallState() = " +
phoneCallState);
} catch (RemoteException ex) {
if(telephonyManager != null){
phoneCallState = telephonyManager.getCallState();
Log.w(TAG, "getPhoneCallState: telephonyManager.getCallState() = " + phoneCallState);
}
Log.w(TAG, "Catch exception when getPreciseCallState: ex = "
+ ex.getMessage());
}
} else {
Log.w(TAG, "getPhoneCallState: telephonyService == null");
if(telephonyManager != null){
phoneCallState = telephonyManager.getCallState();
Log.w(TAG, "getPhoneCallState: telephonyManager.getCallState() = " + phoneCallState);
}
}
Log.w(TAG, "getPhoneCallState: phoneCallState = " + phoneCallState);
return phoneCallState;
}
来源：一牛网论坛
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