我正在开发一个获取来电号码的应用。
这是我正在尝试执行此操作的代码。
package com.example.callchecker;
import android.os.Bundle;
import android.app.Activity ;
import android.content.Context;
import android.telephony.*;
import android.view.Menu;
import android.widget.TextView;
import android.widget.Toast;
public class Main_Activity extends Activity {
String number;
TextView tv1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
tv1=(TextView) findViewById(R.id.textView1);
TelephonyManager telephonymanager =
(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
//register phone state
PhoneStateListener callstatelestener = new PhoneStateListener() {
public void OnCallStateChanged(int state , String incomingNumber) {
number = incomingNumber;
tv1.setText(number);
// If phone ringing
if(state==TelephonyManager.CALL_STATE_RINGING)
{
Toast.makeText(getApplicationContext(), "Phone Is Riging",
Toast.LENGTH_LONG).show();
}
}
};
telephonymanager.listen(callstatelestener,
PhoneStateListener.LISTEN_CALL_STATE);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main_layout, menu);
return true;
}
}
但是当我在这个应用程序中时,即使打电话也没有做任何事情...... 天气我必须让它一直在后台工作????? 如果这是获得传入号码的正确方法???
答案 0 :(得分:0)
在这个广泛的教程中,您将找到解决问题所需的所有答案: http://www.vogella.com/articles/AndroidBroadcastReceiver/article.html