android 简单的更换皮肤

更换皮肤

1.更换皮肤其实就是更换Activity的背景图片

直接上代码：

Activity：

 1 public class MainActivity extends Activity implements OnClickListener {
 2
 3     private SkinManager skinManager;
 4     private int downNums;
 5     private Button btn;
 6
 7     @Override
 8     protected void onCreate(Bundle savedInstanceState) {
 9         super.onCreate(savedInstanceState);
10         setContentView(R.layout.activity_main);
11         skinManager = new SkinManager(this);
12         skinManager.init();
13         btn = (Button) findViewById(R.id.btn_skin);
14         btn.setOnClickListener(this);
15     }
16
17     /**
18      * 背景切换
19      */
20     @Override
21     public boolean onTouchEvent(MotionEvent event) {
22         switch (event.getAction()) {
23         case MotionEvent.ACTION_DOWN:
24             downNums++;
25             skinManager.toggleSkin(downNums % 5);
26             break;
27
28         }
29
30         return super.onTouchEvent(event);
31     }
32
33     /**
34      * 点击后弹出主题选择框，也就是选择图片
35      */
36     @Override
37     public void onClick(View v) {
38
39         switch (v.getId()) {
40         case R.id.btn_skin:
41             GridView grid = new GridView(this);
42             List<HashMap<String, Object>> list = new ArrayList<HashMap<String, Object>>();
43             HashMap<String, Object> map = new HashMap<String, Object>();
44             map.put("imgID", R.drawable.default_wallpaper);
45             list.add(map);
46             HashMap<String, Object> map1 = new HashMap<String, Object>();
47             map.put("imgID", R.drawable.wallpaper_c);
48             list.add(map1);
49             SimpleAdapter adapter = new SimpleAdapter(this, list,
50                     R.layout.item, new String[] { "imgID" },
51                     new int[] { R.id.image });
52             grid.setAdapter(adapter);
53             new AlertDialog.Builder(this).setTitle("选择图片").setView(grid)
54                     .create().show();
55             break;
56
57         }
58     }
59 }

activity_main.xml

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical"
 6     tools:context=".MainActivity" >
 7
 8     <TextView
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content"
11         android:text="@string/hello_world" />
12
13     <Button
14         android:id="@+id/btn_skin"
15         android:layout_width="match_parent"
16         android:layout_height="wrap_content"
17         android:text="皮肤选择" />
18
19 </LinearLayout>

item.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6
 7     <ImageView
 8         android:id="@+id/image"
 9         android:layout_width="70dp"
10         android:layout_height="70dp" />
11
12 </LinearLayout>

SkinManager.class

 1 public class SkinManager {
 2
 3     private String spName = "skin_storage";
 4
 5     private SharedPreferences sp;
 6
 7     private Activity activity;
 8
 9     private int drawableArray[] = { R.drawable.default_wallpaper,
10             R.drawable.wallpaper_c, R.drawable.wallpaper_d,
11             R.drawable.wallpaper_f, R.drawable.wallpaper_g };
12
13     public SkinManager(Activity activity) {
14         this.activity = activity;
15         sp = activity.getSharedPreferences(spName, 0);
16     }
17
18     /**
19      * 保存皮肤ID
20      */
21     private void saveImgID(int ID) {
22         String editorName = "skinID";
23         SharedPreferences.Editor editor = sp.edit();
24         editor.putInt(editorName, ID);
25         editor.commit();
26     }
27
28     /**
29      * 获取当前皮肤
30      */
31     private int getCurrentImgID() {
32         String editorName = "skinID";
33         return sp.getInt("skinID", R.drawable.default_wallpaper);
34
35     }
36
37     public void toggleSkin(int i) {
38         try {
39             activity.getWindow()
40                     .setBackgroundDrawableResource(drawableArray[i]);
41         } catch (Exception e) {
42         }
43     }
44
45     public void init() {
46
47         activity.getWindow().setBackgroundDrawableResource(drawableArray[0]);
48     }
49
50 }

效果图：

源码下载