Android编辑文本光标位置不会在第一次改变

Question

我想在 点击 EditText 后在 EditText 中改变 Cursor 的位置

我想在点击后将 Cursor 的位置更改为十到十二之间，第一次点击。

这是我的代码:

final EditText editText = (EditText) findViewById(R.id.editText);
    editText.setText(text1 + text2);
    editText.setSelection(text1.length());

    editText.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            editText.setSelection(editText.getText().length() - text2.length());
        }
    });

    editText.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int before, int count) {
        }

        @Override
        public void onTextChanged(CharSequence s, int start, int count, int after) {
        }

        @Override
        public void afterTextChanged(Editable editable) {
            if (!editable.toString().contains(text1) || !editable.toString().contains(text2)) {
                editText.setText(text1 + text2);
                editText.setSelection(text1.length());
            }
        }
    });
}

Answer 1

如果我保持简单，以下代码 fragment 足以实现您想要的(显然)

final EditText editText = (EditText) findViewById(R.id.editText);
editText.setText(text1 + text2);
// Keep it simple for the selection, it will place the cursor at end of text1
editText.setSelection(text1.length());
// editText.setCursorVisible(true); // I don't think it is required

// You don't need to go for OnTouchListener, OnClickListener will do for you
editText.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        editText.setSelection(editText.getText().length() - text2.length());
    }
});

editText.addTextChangedListener(new TextWatcher() {
    @Override
    public void beforeTextChanged(CharSequence s, int start, int before, int count) {
    }

    @Override
    public void onTextChanged(CharSequence s, int start, int count, int after) {
    }

    @Override
    public void afterTextChanged(Editable editable) {
        if (!editable.toString().contains(text1) || !editable.toString().contains(text2)) {
            editText.setText(text1 + text2);
            editText.setSelection(text1.length());
        }
    }
});

更新 1

如果它是第一个获得焦点的EditText，上面的代码可以正常工作，否则，如果软键盘已经打开，光标首先显示在点击的地方。这是解决此问题的方法(不是最佳解决方案，但它会为您工作)

editText.setCursorVisible(false);
editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
    @Override
    public void onFocusChange(View view, boolean hasFocus) {
        if (hasFocus) {
            editText.post(new Runnable() {
                @Override
                public void run() {
                    editText.setSelection(editText.getText().length() - text2.length());
                    editText.setCursorVisible(true);
                }
            });
        } else {
            editText.setCursorVisible(false);
        }
    }
});