android - 广播接收器调用两次 EXTRA_STATE_RINGING 状态导致数据不变

Question

我试图在来电时保存通话详细信息，因此我实现了一个收听电话状态的广播接收器。当调用到来时，问题就来了，它进入 EXTRA_STATE_RINGING 两次，我在其中实现了逻辑，因此我的逻辑调用了两次，导致数据不变。

private static final String ACTION_IN = "android.intent.action.PHONE_STATE";

下面是 BroadCastReceiver 的 onReceieve() 的代码

public void onReceive(Context context, Intent intent) {
    ctx = context;
    if (intent.getAction().equals(ACTION_IN)) {
        Log.v("onReceive", "ACTION IN");
        if ((bundle = intent.getExtras()) != null) {
            Log.v("onReceive", "Bundle != NULL");
            state = bundle.getString(TelephonyManager.EXTRA_STATE);
            Log.v("onReceive", "state: "+state);
            if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
            //businesslogic
            }
            }

            }
            }

我在 list 中有以下权限

 <uses-permission android:name="android.permission.READ_PHONE_STATE"/>  

我的接收者在 list 中是这样定义的

<receiver android:name="IncomingCallInterceptor" >                    
<intent-filter android:priority="999">                                                 
             <action android:name="android.intent.action.PHONE_STATE"/> 
        </intent-filter>       
    </receiver>

Answer 1

试试这个，它没有实现 EXTRA_STATE_RINGING 的业务逻辑，它只在用户断开调用(CALL_STATE_IDLE)后设置。

public void onReceive(Context context, Intent intent) {
    ctx = context;
    if (intent.getAction().equals(ACTION_IN)) {
        Log.v("onReceive", "ACTION IN");
        if ((bundle = intent.getExtras()) != null) {
            Log.v("onReceive", "Bundle != NULL");
            state = bundle.getString(TelephonyManager.EXTRA_STATE);
            Boolean singlecallstate=false;
    switch (state) {
        case TelephonyManager.EXTRA_STATE_RINGING:
           singlecallstate=true;
           //any other code you want
        case TelephonyManager.CALL_STATE_IDLE:
       if(singlecallstate){
           //business logic
          singlecallstate=false;
          }
    }
  }
}