Android EditText获得焦点时边框颜色改变

第一步：为了更好的比较，准备两个一模一样的EditText(当Activity启动时，焦点会在第一个EditText上，如果你不希望这样只需要写一个高度和宽带为0的EditText即可避免，这里就不这么做了)，代码如下：

< EditText
    android:layout_width = "fill_parent"
    android:layout_height = "36dip"
    android:background = "@drawable/bg_edittext"
    android:padding = "5dip"
    android:layout_margin = "36dip"
    android:textColorHint = "#AAAAAA"
    android:textSize = "15dip"
    android:singleLine = "true"
    android:hint = "请输入..."  />

接下来建立三个xml文件，分别为输入框未获得焦点时的背景，输入框获得焦点时的背景，selector背景选择器（这里能获得输入框什么时候获得和失去焦点），代码如下：

bg_edittext_normal.xml(未获得焦点时)

xml  version = "1.0"  encoding = "UTF-8" ?>
< shape  xmlns:android = "http://schemas.android.com/apk/res/android" >
    < solid  android:color = "#FFFFFF"  />
    < corners  android:radius = "3dip"  />
    < stroke  android:width = "1dip"  android:color = "#BDC7D8"  />
shape >

bg_edittext_focused.xml(获得焦点时)

xml  version = "1.0"  encoding = "UTF-8" ?>
< shape  xmlns:android = "http://schemas.android.com/apk/res/android" >
    < solid  android:color = "#FFFFFF"  />
    < corners  android:radius = "3dip"  />
    < stroke  android:width = "1dip"  android:color = "#728ea3"  />
shape >

bg_edittext.xml(selector选择器，这方面资料网上很多)

xml  version = "1.0"  encoding = "UTF-8" ?>
< selector  xmlns:android = "http://schemas.android.com/apk/res/android" >
    < item  android:state_window_focused = "false"
        android:drawable = "@drawable/contact_edit_edittext_normal"  />
    < item  android:state_focused = "true"
        android:drawable = "@drawable/contact_edit_edittext_focused"  />
selector >

这样就OK了，效果图如下：

第二个输入框边框变为深色，是不是这样更友好点。

改变<stroke android:width="1dip" android:color="#728ea3" />属性中color就能改变边框颜色了

原文地址：http://www.android-study.com/jiemiansheji/385.html