telephonyManager.listen强制应用程序终止
Iam与Android合作，撰写一个跟踪通话事件的小应用程序。 每次我尝试绑定列表器时，os都会强制应用程序关闭，以至于无法接受。 我错过了什么？ 这是我的代码：
包com.example.helloandroid;
导入android.app.Activity; import android.content.Context; 导入android.os.Bundle; 导入android.telephony.CellLocation; import android.telephony.PhoneStateListener; 导入android.telephony.ServiceState; 导入android.telephony.TelephonyManager; 导入android.widget.TextView;
公共类helloAndroid延伸活动{
TextView textOut; TelephonyManager telephonyManager; PhoneStateListener phoneStateListener;
@Override public void onDestroy（）{telephonyManager.listen（phoneStateListener，PhoneStateListener.LISTEN_NONE）;
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Get the UI
textOut = (TextView) findViewById(R.id.textOut);
// Get the telephony manager
telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
// Create a new PhoneStateListener
phoneStateListener = new PhoneStateListener() {
public void onCallForwardingIndicatorChanged(boolean cfi) {}
public void onCallStateChanged(int state, String incomingNumber) {}
public void onCellLocationChanged(CellLocation location) {}
public void onDataActivity(int direction) {}
public void onDataConnectionStateChanged(int state) {}
public void onMessageWaitingIndicatorChanged(boolean mwi) {}
public void onServiceStateChanged(ServiceState serviceState) {
String stateString = "N/A";
switch (serviceState.getState()) {
case TelephonyManager.CALL_STATE_IDLE:
stateString = "Idle";
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
stateString = "Off Hook";
break;
case TelephonyManager.CALL_STATE_RINGING:
stateString = "Ringing";
break;
}
textOut.append(String.format("nonCallStateChanged: %s", stateString));
}
public void onSignalStrengthChanged(int asu) {}
};
// Register the listener with the telephony manager
telephonyManager.listen(phoneStateListener,
PhoneStateListener.LISTEN_CALL_FORWARDING_INDICATOR |
PhoneStateListener.LISTEN_CALL_STATE |
PhoneStateListener.LISTEN_CELL_LOCATION |
PhoneStateListener.LISTEN_DATA_ACTIVITY |
PhoneStateListener.LISTEN_DATA_CONNECTION_STATE |
PhoneStateListener.LISTEN_MESSAGE_WAITING_INDICATOR |
PhoneStateListener.LISTEN_SERVICE_STATE |
PhoneStateListener.LISTEN_SIGNAL_STRENGTH);
}
}
我的错误：需要添加权限ACCESS_COARSE_LOCATION
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