Question

如何在广播接收器呼叫号码或OFFHOOK状态时启动音频歌曲，并在IDLE或呼叫结束时停止播放。

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.widget.Toast;
import android.media.MediaPlayer;

public class Ringing extends BroadcastReceiver{
    Context context;
    public static MediaPlayer ob=null;
    @Override
    public void onReceive(Context context, Intent intent){
        String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);

        if(state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){
           // Toast.makeText(context, "Call Recieved", Toast.LENGTH_LONG).show();
            ob = MediaPlayer.create(context,R.raw.trouble);
            ob.start();
        }
        if(state.equals(TelephonyManager.EXTRA_STATE_IDLE)){
           if(ob.isPlaying()) {
               ob.stop();
                ob.destroy();
           }
        }
    }
}

Answer 1

声明类变量，如下面的broadcastreceiver代码中所示：

public class PhonecallReceiver extends BroadcastReceiver {
    static String phoneNumber;
    private static boolean ringing, received;
    .......................

接下来在onReceive方法中输入以下代码：

收到电话号码时，状态为：的 IDLE＆GT; RINGING＆GT; OFFHOOK＆GT; IDLE

如果未收到电话号码，则状态为：的 IDLE＆GT; RINGING＆GT; IDLE

当状态为RINGING时，将振铃变量设置为true，然后当状态为OFFHOOK时，检查变量振铃是否为真，然后选择呼叫并启动音频并将振铃设置为false并接收为true。接下来，当状态为IDLE时，检查收到的变量是否为真，然后选择的呼叫被断开，现在开始播放音乐。

@Override public void onReceive(Context context, Intent intent) { Bundle bundle = intent.getExtras(); String state = bundle.getString(TelephonyManager.EXTRA_STATE); String temp = bundle.getString(TelephonyManager.EXTRA_INCOMING_NUMBER); if (!(state == null) && state.equals(TelephonyManager.EXTRA_STATE_RINGING)) { ringing = true; received = false; } else if (!(state == null) && state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK) && ringing) { received = true; ringing = false; //add code to start music } else if (!(state == null) && state.equals(TelephonyManager.EXTRA_STATE_IDLE) && received) { //add code to stop music received = false; ringing = false; } }

如何在广播接收器获得摘机状态时启动音频歌曲，并在拨号盘关闭时停止它

1 个答案: