Android开发之EditText

一、实现获取焦点之后提示语消失

        _editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus==true){//获取焦点了
                     _editText.setHint("");
                }else {
                     _editText.setHint("搜索");
                }
            }
        });

二、修改光标样式

鼠标res右键-> new -> Android resource file

File name: search_edit_background
Resource Type: Drawable

内容为：

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item>
        <shape
            android:shape="rectangle">
            <solid android:color="#fff"/>
            <corners android:radius="15dp"/>
            <stroke
                android:width="1dp"
                android:color="#e6e6e6"/>
        </shape>
    </item>

</layer-list>

三、实现边输入边搜索功能

        /*给导航栏中间的搜索框加监听，实现边输入边搜索的功能*/
        _editText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

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

            }

            @Override
            public void afterTextChanged(Editable s) {
                Log.d("搜索值=", s.toString());
                //调用网络请求方法
            }
        });