Android怎么给应用定制皮肤

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先说思路:

1）皮肤也就是相关的资源文件单独放置在某个工程中,一种皮肤一个工程文件.一个工程包括N多的资源文件,多个工程间资源的关系是,文件名,资源ID等完全一样.不同的可能是图片资源,style等的设置不一样.

皮肤工程在AndroidManifest.xml中配置android:sharedUserId="com.eric.skinmain".

表明允许com.eric.skinmain访问本工程中的资源文件. com.eric.skinmain是主项目的包名

3）主项目通过 this.createPackageContext("com.eric.blackskin",Context.CONTEXT_IGNORE_SECURITY);

获取到com.eric.blackskin对应的Context,然后通过返回的context对象就可以访问到com.eric.blackskin中的任何资源,如同访问自身的资源一样.

注：记得先安装皮肤工程对应的apk文件.

public class main extends Activity {         /** Called when the activity is first created. */         private LinearLayout showBg;         private Button btn;         private Context green_skin_Context = null;         private Context black_skin_Context = null;         int flag = 0;          @Override         public void onCreate(Bundle savedInstanceState) {                 super.onCreate(savedInstanceState);                 setContentView(R.layout.main);                 showBg = (LinearLayout) findViewById(R.id.linear_layout_1);                 try {                         green_skin_Context = this.createPackageContext(                                         "com.eric.greenskin", Context.CONTEXT_IGNORE_SECURITY);                 } catch (NameNotFoundException e) {                         e.printStackTrace();                 }                 try {                         black_skin_Context = this.createPackageContext(                                         "com.eric.blackskin", Context.CONTEXT_IGNORE_SECURITY);                 } catch (NameNotFoundException e) {                         e.printStackTrace();                 }                 btn = (Button) findViewById(R.id.btn_change_skin);                 btn.setOnClickListener(new OnClickListener() {                         @Override                         public void onClick(View v) {                                 if (flag == 0) {                                         showBg.setBackgroundDrawable(green_skin_Context                                                         .getResources().getDrawable(R.drawable.bg));                                         btn.setBackgroundDrawable(green_skin_Context                                                         .getResources().getDrawable(R.drawable.btn_normal));                                                                                  flag = 1;                                 } else if (flag == 1) {                                         showBg.setBackgroundDrawable(black_skin_Context                                                         .getResources().getDrawable(R.drawable.bg));                                         btn.setBackgroundDrawable(black_skin_Context                                                         .getResources().getDrawable(R.drawable.btn_normal));                                         flag = 0;                                 }                         }                 });         } }

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