android - BroadCastReceiver 中的 PhoneStateListener

Question

我正在制作一个应用程序，该应用程序将通过警报管理器触发拨出电话。此外，应该监控去电，以检查调用是否成功、忙碌或其他任何情况。我的问题是如何在 BroadCastReceiver 中调用 PhoneStateListener？

主要 Activity

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void startAlert(View view) {
        EditText text = (EditText) findViewById(R.id.time);
        int i = Integer.parseInt(text.getText().toString());
        Intent intent = new Intent(this, MyBroadcastReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 234324243, intent, 0);
        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (i * 1000), pendingIntent);
    }
}

广播接收器

public class MyBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {

        PackageManager pm = context.getPackageManager();
        int hasPerm = pm.checkPermission(android.Manifest.permission.PROCESS_OUTGOING_CALLS,context.getPackageName());
        if (hasPerm != PackageManager.PERMISSION_GRANTED) {
            Intent myIntent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + "+38163670832"));;
            myIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(myIntent);
        }
    }
}

我想应用的 PhoneStateListener 示例

public void onCallStateChanged(int state, String incomingNumber) {
    super.onCallStateChanged(state, incomingNumber);
    switch (state) {
        case TelephonyManager.CALL_STATE_OFFHOOK:
            //Kada se korisnik javi
            Toast.makeText(context, "Veza uspostavljena", Toast.LENGTH_LONG).show();
            break;
        case TelephonyManager.CALL_STATE_IDLE:
            //Idle stanje
            Toast.makeText(context, "Idle mod", Toast.LENGTH_LONG).show();
            break;
    }
}

Answer 1

how to call for PhoneStateListener in BroadCastReceiver?

嗯……为了什么？ BroadCastReceiver 本身可以为您提供有关当前电话状态的所有必要信息，因此您不需要任何其他信息

public class MyBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        final String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);

        /* Incoming call */
        if (TelephonyManager.EXTRA_STATE_RINGING.equals(state)) {
        } else

        /* Outgoing call */
        if (TelephonyManager.EXTRA_STATE_OFFHOOK.equals(state)) {
        } else

        /* Call ended */
        if (TelephonyManager.EXTRA_STATE_IDLE.equals(state)) {
        }
    }

}