android2.3以上自动接听来电

因为Android2.3以上增加了对permission  android.permission.MODIFY_PHONE_STATE 的限制，2.3之前的通过反射机制调用ITelephone的能力的做法已经不适用

 

2.3上实现方式：

public synchronized void answerRingingCall() {
		// 据说该方法只能用于Android2.3及2.3以上的版本上
		try {
			Intent localIntent1 = new Intent(Intent.ACTION_HEADSET_PLUG);
			localIntent1.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
			localIntent1.putExtra("state", 1);
			localIntent1.putExtra("microphone", 1);
			localIntent1.putExtra("name", "Headset");
			sendOrderedBroadcast(localIntent1,
					"android.permission.CALL_PRIVILEGED");
			Intent localIntent2 = new Intent(Intent.ACTION_MEDIA_BUTTON);
			KeyEvent localKeyEvent1 = new KeyEvent(KeyEvent.ACTION_DOWN,
					KeyEvent.KEYCODE_HEADSETHOOK);
			localIntent2.putExtra("android.intent.extra.KEY_EVENT",
					localKeyEvent1);
			sendOrderedBroadcast(localIntent2,
					"android.permission.CALL_PRIVILEGED");
			Intent localIntent3 = new Intent(Intent.ACTION_MEDIA_BUTTON);
			KeyEvent localKeyEvent2 = new KeyEvent(KeyEvent.ACTION_UP,
					KeyEvent.KEYCODE_HEADSETHOOK);
			localIntent3.putExtra("android.intent.extra.KEY_EVENT",
					localKeyEvent2);
			sendOrderedBroadcast(localIntent3,
					"android.permission.CALL_PRIVILEGED");
			Intent localIntent4 = new Intent(Intent.ACTION_HEADSET_PLUG);
			localIntent4.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
			localIntent4.putExtra("state", 0);
			localIntent4.putExtra("microphone", 1);
			localIntent4.putExtra("name", "Headset");
			sendOrderedBroadcast(localIntent4,
					"android.permission.CALL_PRIVILEGED");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}