焦点状态改变后如何更改“drawableLeft”？

Question

1.我不想为每个组件写太多选择器。

2.我试着写一个EditText的子类，命名为EditTextDrawable。然后我确实喜欢这个：

public EditTextWithDrawable(Context context, final Drawable normal, final Drawable focus){
    super(context);
    setOnFocusChangeListener(new OnFocusChangeListener() {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            // changeDrawable(hasFocus, normal, focus);
        }
    });

但是如果我想重置OnFocusChangeListener，我必须再次输入代码。这很无聊。

有一种简单的方法可以解决这个问题吗？先进了！

Answer 1

@Override
protected void onFocusChanged(boolean focused, int direction,
        Rect previouslyFocusedRect) {
    // TODO Auto-generated method stub
    super.onFocusChanged(focused, direction, previouslyFocusedRect);
    if (focused) {
        setCompoundDrawablesWithIntrinsicBounds(fous, null, null, null);
    }else {
        setCompoundDrawablesWithIntrinsicBounds(normal, null, null, null);
    }
}