Question

I m 采用用户要求测量的表格。根据当地情况,用户将进入计量器或脚/ches。

简言之,我目前的执行要求只用脚使用精子。例如,2.5英尺等于2'6',这从我的理解中相当误导。 I m not in a , so it wasn t clear to me at time.

我看到一些可能性和问题:

Show two EditText fields, one for feet one for inches. This makes layout design difficult since I m also allowing the user to enter meters, which will only need one EditText. A possibility is to make one hidden at run time.
Using one EditText, I can t seem to find an android:inputType that allows for number input plus double primes and primes, or double quotes and apostrophes. e.g. 3′ 5″ or 3 5". It means the EditText would have to use the standard alphabet keyboard which makes it slightly hindering to the user.
Also, with one EditText, I am happy to (and already doing so for just a single entry with meters and feet without inches), to suffix the EditText after the user loses focus, and remove the suffix when being focused again. This does make the code more complex for a simple input field.

是否还有其他选择?

Answer 1

我在就职后不久刚刚实现:

为什么不创建 NumberPicker popup or Spinner,用户的重点是 EditText。这只能表明进行帝国测量。

Answer 2

我在座头顶上思考一下,你可以使用,以检查用户类型的空间。如发生这种情况,请在<代码>上填写>,并允许用户对ches进行分类。

Or, always append the suffix to the end and push it down beyond the cursor every time the user types. When the user presses space then jump the cursor over and put " beyond it.

从用户流动的角度来看,它可能或可能不会是表面的(我曾经尝试过或看到过),但它可以解决一些问题。您可以继续迫使用户只打上数字数值,而这些数字却保持了关键。他们不必打上钥匙板,或用长key新闻打上单一特性。该表还显示了用户的类型意图。

Answer 3

 edittext.setOnKeyListener(new View.OnKeyListener() {
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (event.getKeyCode() != KeyEvent.KEYCODE_DEL) {
                String input = edittext.getText().toString();
                if (input.length() == 1) {
                    input = input + " ";
                    edittext.setText(input);
                    int pos = edittext.getText().length();
                    edittext.setSelection(pos);
                }
            }
            return false;
        }
    });

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