耳机按钮双击android

我使用此代码检测我的广播接收器中的单击和双击耳机按钮：

int d = 0; @Override public void onReceive(Context context, Intent intent) { String intentAction = intent.getAction(); if (!Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) { return; } KeyEvent event = (KeyEvent) intent .getParcelableExtra(Intent.EXTRA_KEY_EVENT); if (event == null) { return; } int action = event.getAction(); switch (event.getKeyCode()) { case KeyEvent.KEYCODE_HEADSETHOOK: if (action == KeyEvent.ACTION_DOWN) { d++; Handler handler = new Handler(); Runnable r = new Runnable() { @Override public void run() { Toast.makeText(context, "single click!", Toast.LENGTH_SHORT).show(); d = 0; } }; if (d == 1) { handler.postDelayed(r, 500); } else if (d == 2) { d = 0; Toast.makeText(context, "double click!", Toast.LENGTH_SHORT).show(); } }break; } abortBroadcast(); } 

但它只是检测单击。 两次单击而不是双击。 问题出在哪里？

Answer 1

正确的解决方案：

 static int d = 0; @Override public void onReceive(Context context, Intent intent) { String intentAction = intent.getAction(); if (!Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) { return; } KeyEvent event = (KeyEvent) intent .getParcelableExtra(Intent.EXTRA_KEY_EVENT); if (event == null) { return; } int action = event.getAction(); switch (event.getKeyCode()) { case KeyEvent.KEYCODE_HEADSETHOOK: if (action == KeyEvent.ACTION_DOWN) { d++; Handler handler = new Handler(); Runnable r = new Runnable() { @Override public void run() { // single click ******************************* if (d == 1) { Toast.makeText(context, "single click!", Toast.LENGTH_SHORT).show(); } // double click ********************************* if (d == 2) { Toast.makeText(context, "Double click!!", Toast.LENGTH_SHORT).show(); } d = 0; } }; if (d == 1) { handler.postDelayed(r, 500); } }break; } abortBroadcast(); }