Android 自定义Button按钮显示样式(正常、按下、获取焦点)

  次阅读 来源:互联网(转载协议) 2015-12-04 16:40 我要评论(0)

现在的用户对APP的外观看得很重要,如果APP内所有元件都用Android默认样式写,估计下面评论里就有一堆在骂UI丑的。今天学习自定义Button按钮样式。Button样式修改的是Button的背景(Background)属性。

首先写一个定义Button样式的XML文件:

新建Android XML文件,类型选Drawable,根结点选selector,文件名就buton_style吧。

程序自动给我们刚刚建的文件里加了selector结点,我们只需要在selector结点里写上三种状态时显示的背景图片(按下、获取焦点,正常)。

代码如下:

<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,153,0)"><span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,0)"><strong><?xml</strong></span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,102)">version</span>=<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(255,0,0)">"1.0"</span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,102)">encoding</span>=<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(255,0,0)">"utf-8"</span><span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,0)"><strong>?></strong></span></span>

<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,153,0)"><span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,0)"><strong><selector</strong></span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,102)">xmlns:android</span>=<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(255,0,0)">"http://schemas.android.com/apk/res/android"</span><span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,0)"><strong>></strong></span></span>

<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,153,0)"><span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,0)"><strong><item</strong></span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,102)">android:state_pressed</span>=<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(255,0,0)">"true"</span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,102)">android:drawable</span>=<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(255,0,0)">"@drawable/play_press"</span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,0)"><strong>/></strong></span></span>

<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,153,0)"><span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,0)"><strong><item</strong></span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,102)">android:state_focused</span>=<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(255,0,0)">"true"</span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,102)">android:drawable</span>=<span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(255,0,0)">"@drawable/play_press"</span> <span style="border:0px; font-family:inherit; font-style:inherit; margin:0px; outline:0px; padding:0px; vertical-align:baseline; color:rgb(0,0,0)"><strong>/></strong></span></span>

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