Question

我正在开发一个Android应用程序，其中有一个紧急号码调用功能。我正在使用下面的呼叫代码：

private void call(String pnum) {
    private TelephonyManager telephone;
    private PhoneListener phList;
    telephone = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
    phList = new PhoneListener(this);
    telephone.listen(phList, PhoneStateListener.LISTEN_CALL_STATE);

    Intent call = new Intent(Intent.ACTION_CALL);
    call.setData(Uri.parse("tel:" + pnum));
    call.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    startActivity(call);
    finish();
}

和PhoneListener类如下：

public class PhoneListener extends PhoneStateListener {
   boolean called = false;
   TelephonyManager mTelMgr;
   InitiateScreen m;

   public PhoneListener(InitiateScreen activity) {
       mTelMgr = (TelephonyManager) activity
            .getSystemService(Context.TELEPHONY_SERVICE);
       m = activity;
    }

   @Override
   public void onCallStateChanged(int state, String inNum) {
       super.onCallStateChanged(state, inNum);

       // Don't fire before the call was made
       if (state == TelephonyManager.CALL_STATE_OFFHOOK)
        called = true;

       // Call has ended -- now bring the activity back to front
       if (called && state == TelephonyManager.CALL_STATE_IDLE) {
        called = false;
        mTelMgr.listen(this, PhoneStateListener.LISTEN_NONE);
       }
    }
   }

当我使用INTENT.ACTION_CALL时，呼叫应该自动发生。但对于紧急号码拨号盘显示（ACTION_DIAL）。我已使用非紧急号码验证了相同的代码。通话自动进行。因此，Android不支持直接拨打紧急号码。我们无法为Android中的紧急号码调用ACTION.CALL。请帮助我提供您的意见。

Answer 1

在您的活动中调用此

Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + "911")); startActivity(intent);

将此权限添加到您的清单： <uses-permission android:name="android.permission.CALL_PHONE" />

Answer 2

试试这个

 private void phoneCall()
{


   Intent callIntent = new Intent(Intent.ACTION_CALL);

   callIntent.setData(Uri.parse("tel:"+txtPhn.getText().toString().trim()));
   callIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 


   startActivity(callIntent);



}

Android - 如何使用Intent.ACTION_CALL激活紧急号码？

2 个答案: