KeyButtonView.java 文件源码

public void run() {
    if (isPressed()) {
        if (mCode != 0) {
            if (mCode == KeyEvent.KEYCODE_DPAD_LEFT || mCode == KeyEvent.KEYCODE_DPAD_RIGHT) {
                sendEvent(KeyEvent.ACTION_UP, KeyEvent.FLAG_SOFT_KEYBOARD |
                        KeyEvent.FLAG_KEEP_TOUCH_MODE, System.currentTimeMillis(), false);
                sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.FLAG_SOFT_KEYBOARD |
                        KeyEvent.FLAG_KEEP_TOUCH_MODE, System.currentTimeMillis(), false);
                removeCallbacks(mCheckLongPress);
                postDelayed(mCheckLongPress, ViewConfiguration.getKeyRepeatDelay());
            } else {
                sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.FLAG_LONG_PRESS);
                sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_LONG_CLICKED);
            }
        } else {
            mLongPressConsumed = performLongClick();
        }
    }
}