例如,将退格键发送到编辑文本控件以删除字符或发送字符代码(如112)以编程方式在edittext控件中附加字符.
void onKeyReceived(int keyCode)
{
// here I would like to append the keyCode to EditText, I kNow how to add a visible character, but what about some special keys, like arrow key, backspace key.
}
解决方法:
要将模拟退格键发送到EditText,您必须发送按键和释放事件.像这样:
mEditText.dispatchKeyEvent(new KeyEvent(0, 0, KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_DEL, 0));
mEditText.dispatchKeyEvent(new KeyEvent(0, 0, KeyEvent.ACTION_UP,
KeyEvent.KEYCODE_DEL, 0));
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