EditText的onFocusChange中的setSelection [英] setSelection in EditText's onFocusChange

问题描述

通常，单击视图时，将文本光标设置在您单击的位置附近.
我尝试将其始终设置为末尾(过去的字符)，但是除非动作延迟，否则它什么也不做.
以下:

Normally, when the view is clicked, the text cursor is set near the place you clicked on.
I try to set it always to the end (past the last character), but it does nothing unless the action is delayed.
The following:

new OnFocusChangeListener() {
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        if(hasFocus) {
            EditText et = (EditText) v;
            et.setSelection(et.getText().length());
        }
    }
});

不起作用.延迟setSelection部分:

Handler handler = new Handler();
handler.postDelayed(new Runnable() {
    @Override
    public void run() {
        et.setSelection(et.getText().length());
    }
}, 40);

使它起作用，但这是不好的做法.

makes it work, but is bad practice.

有哪些更好的选择? OnClickListener和OnTouchListener(ACTION_DOWN和ACTION_UP都)也无济于事.

What better alternatives are there? OnClickListener and OnTouchListener (ACTION_DOWN and ACTION_UP both) don't help, either.

推荐答案

无需延迟.我们需要等待setSelection，否则将自动调用完成并执行我的setSelection.

No need delay. we need to wait setSelection or else automatically called done and execute my setSelection.

new OnFocusChangeListener() {
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        if(hasFocus) {
            final EditText et = (EditText) v;
            et.post(new Runnable() {
                @Override
                public void run() {
                    et.setSelection(et.getText().length());
                }
            });
        }
    }
});

这篇关于EditText的onFocusChange中的setSelection的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！