Android开发实现切换主题及换肤功能示例

本文实例讲述了android开发实现切换主题及换肤功能。分享给大家供大家参考，具体如下：

废话不说先看效果：

创建colortheme类用于主题更换：

public class colortheme {
  appcompatactivity ap;
  public colortheme(appcompatactivity _ap){ap=_ap;}
  public void updatetheme(int _data){
    string data=integer.tostring(_data);
    fileoutputstream out=null;
    bufferedwriter writer=null;
    try{
      out=ap.openfileoutput("data",context.mode_private);
      writer=new bufferedwriter(new outputstreamwriter(out));
      writer.write(data);
    }catch (ioexception e){
      e.printstacktrace();
    }finally {
      try {
        if(writer!=null){
          writer.close();
        }
      }catch (ioexception e){
        e.printstacktrace();
      }
    }
  }
  public void loadtheme(){
    fileinputstream in=null;
    bufferedreader reader= null;
    stringbuilder content=new stringbuilder();
    try{
      in=ap.openfileinput("data");
      reader=new bufferedreader(new inputstreamreader(in));
      string line="";
      while((line=reader.readline())!=null){
        content.append(line);
      }
      ap.settheme(integer.parseint(content.tostring()));
    }catch (ioexception e){
      e.printstacktrace();
    }finally {
      if(reader!=null){
        try{
          reader.close();
        }catch (ioexception e){
          e.printstacktrace();
        }
      }
    }
  }
}

在oncreate中调用：

protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  final colortheme newtheme = new colortheme(this);
  newtheme.loadtheme();
  setcontentview(r.layout.activity_main);

重点：

要现在res/value/style中设计主题的样式：

这里是我设的的四种样式：

<?xml version="1.0"?>
  <resources>
  <!-- base application theme. -->
  -<style parent="theme.appcompat.light.noactionbar" name="apptheme">
  <!-- customize your theme here. -->
  <item name="colorprimary">@color/colorprimary</item>
  <item name="colorprimarydark">@color/colorprimarydark</item>
  <item name="coloraccent">@color/coloraccent</item>
  <item name="colorbuttonnormal">@color/coloraccent</item>
</style>
  -<style parent="theme.appcompat.light.noactionbar" name="blue">
  <!-- customize your theme here. -->
  <item name="colorprimary">@color/blue</item>
  <item name="colorprimarydark">@color/blue</item>
  <item name="coloraccent">@color/blue</item>
  <item name="colorbuttonnormal">@color/blue</item>
</style>
  -<style parent="theme.appcompat.light.noactionbar" name="pink">
  <!-- customize your theme here. -->
  <item name="colorprimary">@color/pink</item>
  <item name="colorprimarydark">@color/pink</item>
  <item name="coloraccent">@color/pink</item>
  <item name="colorbuttonnormal">@color/pink</item>
</style>
  -<style parent="theme.appcompat.light.noactionbar" name="turquoise">
  <!-- customize your theme here. -->
  <item name="colorprimary">@color/turquoise</item>
  <item name="colorprimarydark">@color/turquoise</item>
  <item name="coloraccent">@color/turquoise</item>
  <item name="colorbuttonnormal">@color/turquoise</item>
</style>
</resources>

别忘了在color里定义的颜色：

<?xml version="1.0" encoding="utf-8"?>
  <resources>
  <color name="colortext">#ffffffff</color>
  <color name="hinttext">#bfffffff</color>
  <color name="colorprimary">#de4037</color>
  <color name="colorprimarydark">#de4037</color>
  <color name="coloraccent">#de4037</color>
  <!--注册界面提示红色-->
  <color name="hintred">#de4037</color>
  <color name="blue">#1e50a2</color>
  <color name="pink">#fa7299</color>
  <color name="turquoise">#008577</color>
</resources>

更多关于android相关内容感兴趣的读者可查看本站专题：《android控件用法总结》、《android开发入门与进阶教程》、《android视图view技巧总结》、《android编程之activity操作技巧总结》、《android数据库操作技巧总结》及《android资源操作技巧汇总》

希望本文所述对大家android程序设计有所帮助。