手机状态改变时停止吐司

Question

我正在尝试制作一个在来电中显示吐司的应用程序，并在拒绝decall或停止振铃但无法正常工作时销毁该吐司！我的代码是：

 if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {




                LayoutInflater mInflater = LayoutInflater.from(context);
                View myView = mInflater.inflate(R.layout.toast, null);
                ImageView image =  myView.findViewById(R.id.image);
                image.setImageResource(R.drawable.thumb);
                TextView text = (TextView) myView.findViewById(R.id.text);
                text.setText("prueba");





                    toast = new Toast(context);
                    toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
                    toast.setDuration(Toast.LENGTH_LONG);
                    toast.setView(myView);
                    toast.show();


                timer = new CountDownTimer(9000, 1000)
                {

                    public void onTick(long millisUntilFinished) {toast.show();}
                    public void onFinish() {toast.show();}

                }.start();


                toast.cancel();



            }

        }
        if ((state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK))) {
            //Toast.makeText(context,"Call Received State",Toast.LENGTH_SHORT).show();
        }
        if (state.equals(TelephonyManager.EXTRA_STATE_IDLE)) {

           toast.cancel();
           timer.cancel();

        }

当状态更改为TelephonyManager.EXTRA_STATE_IDLE时，我想销毁TelephonyManager.EXTRA_STATE_RINGING中显示的烤面包

问题是：做得好！除了当状态更改为TelephonyManager.EXTRA_STATE_IDLE时，吐司仍然在屏幕上，无法取消！

请帮助！