我想检测使用SoftKey放入EditText的东西。
我已覆盖dispatchKeyEvent
,但它不起作用......
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
Log.e("key pressed", String.valueOf(event.getKeyCode()));
return super.dispatchKeyEvent(event);
}
答案 0 :(得分:0)
找到解决方案
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_DEL) {
// like this you can detect
}
return super.onKeyDown(keyCode, event);
}
答案 1 :(得分:-1)
yourEditText.addTextChangedListener(watcher);
private TextWatcher watcher = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
if(!s.toString().isEmpty()){
//your text is not empty
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
};