研究背景

我开发一个应用程序，这使得像lollpop调用。当有来电时它应该显示屏幕，并默认调用屏幕上的弹出应该是不可见的。

I am developing an app which makes calls like lollpop. When a call comes it should show a popup on the screen and the default calling screen should not be visible.

我做了什么

我建立广播接收器，目前我能够每一个电话来的时候显示一个弹出窗口。

I have build the broadcast receiver and currently I am able to show a popup every time a call come.

使用此code

public class PhoneCallReceive extends BroadcastReceiver {
    Class<?> c;
    public static ITelephony telephonyService = null;
    TelephonyManager telephony;
    Method m;
    public static int flag = 0;
    public static AudioManager audioManager;

    @Override
    public void onReceive(Context conk, Intent inter) {

        final Context context = conk;
        final Intent intent = inter;
        Thread pageTimer = new Thread() {
            public void run() {
                try {
                    sleep(800);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } finally {
                    try {
                        telephony = (TelephonyManager) context
                                .getSystemService(Context.TELEPHONY_SERVICE);
                        c = Class.forName(telephony.getClass().getName());
                        m = c.getDeclaredMethod("getITelephony");
                        m.setAccessible(true);
                        telephonyService = (ITelephony) m.invoke(telephony);
                        audioManager = (AudioManager) context
                                .getSystemService(Context.AUDIO_SERVICE);

                    } catch (Exception e) {

                        e.printStackTrace();
                    }
                    if (telephony.getCallState() == 1)

                        flag = 1;
                    Log.d("Rec", "reciever");
                    audioManager.setRingerMode(AudioManager.RINGER_MODE_SILENT);

                    callingscreen("1", context, intent);
                }
            }
        };
        pageTimer.start();

    } 
    public void callingscreen(final String type, final Context context,
            final Intent intent) {
        Intent intentPhoneCall = new Intent(context.getApplicationContext(),
                CallerScreen.class);
        intentPhoneCall.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        intentPhoneCall.putExtra(
                "number",
                intent.getExtras().getString(
                        TelephonyManager.EXTRA_INCOMING_NUMBER));
        intentPhoneCall.putExtra("type", type);
        context.startActivity(intentPhoneCall);
    }
} // class

问题

但问题是，这个弹出窗口显示在默认调用屏幕。我想要的显示用户当前屏幕上，他正致力于弹出。

But the Problem is that this popup is showing over the default calling screen. What I want to show the popup on the user current screen on which he was working.

问题

所以简单的问题是，我怎么能得到用户当前的屏幕，其弹出下面的所有功能？

So the simple question is that how can I get the user current screen with its all functionality below the popup?

请帮忙：）

推荐答案

该解决方案适用于每一个Android版本，包括棒棒糖 使用该广播reciever

This solution works on every version of android, including lollipop Use this broadcast reciever

class TeleListener extends PhoneStateListener {
        public void onCallStateChanged(int state, String incomingNumber) {
            super.onCallStateChanged(state, incomingNumber);
            switch (state) {
            case TelephonyManager.CALL_STATE_IDLE:
                // CALL_STATE_IDLE;
                Toast.makeText(getApplicationContext(), "CALL_STATE_IDLE",
                        Toast.LENGTH_LONG).show();
                break;
            case TelephonyManager.CALL_STATE_OFFHOOK:
                // CALL_STATE_OFFHOOK;
                Toast.makeText(getApplicationContext(), "CALL_STATE_OFFHOOK",
                        Toast.LENGTH_LONG).show();
                break;
            case TelephonyManager.CALL_STATE_RINGING:
                // CALL_STATE_RINGING, call intent here
                Intent i = null;
                i = new Intent(context,                  My_activity.class).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                context.startActivity(i);
                break;
            default:
                break;
            }
        }
    }  

和注册像这样的的onCreate

and register it like this in onCreate

TelephonyManager TelephonyMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        TelephonyMgr.listen(new TeleListener(), PhoneStateListener.LISTEN_CALL_STATE);  

是的，请不要错过。

And yes, please dont miss

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>  

干杯！你的问题就解决了​​;）

Cheers! Your problems is solved ;)