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。