「Update」

1、增加动态皮肤加载SDK开发

libraries/mogo-skin/src/main/java/com/mogo/skin/SkinManager.java

@@ -0,0 +1,173 @@
+package com.mogo.skin;
+
+import android.app.Activity;
+import android.app.Application;
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.res.AssetManager;
+import android.content.res.Resources;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.mogo.skin.net.DownloadManager;
+import com.mogo.skin.utils.FileUtils;
+import com.mogo.skin.utils.SkinPreference;
+import com.mogo.skin.utils.SkinResources;
+
+import java.io.File;
+import java.lang.reflect.Method;
+import java.util.Observable;
+
+/**
+ * donghongyu
+ */
+public class SkinManager extends Observable {
+
+    private static String TAG = "SkinManager";
+
+    private static Application mApplication;
+    private static SkinManager instance;
+    private SkinActivityLifecycle skinActivityLifecycle;
+    private Application application;
+
+    public static void init(Application application) {
+        synchronized (SkinManager.class) {
+            if (null == instance) {
+                mApplication = application;
+                instance = new SkinManager(application);
+            }
+        }
+    }
+
+    public static SkinManager getInstance() {
+        return instance;
+    }
+
+    private SkinManager(Application application) {
+        this.application = application;
+        SkinPreference.init(application);
+        SkinResources.init(application);
+        //注册Activity生命周期回调
+        skinActivityLifecycle = new SkinActivityLifecycle();
+        application.registerActivityLifecycleCallbacks(skinActivityLifecycle);
+        loadSkin(SkinPreference.getInstance().getSkin());
+    }
+
+    /**
+     * 加载皮肤包 并 更新
+     *
+     * @param path 皮肤包路径
+     */
+    public void loadSkin(String path) {
+        Log.d(TAG, "加载皮肤路径：" + path);
+        //还原默认皮肤包
+        if (TextUtils.isEmpty(path)) {
+            SkinPreference.getInstance().setSkin("");
+            SkinResources.getInstance().reset();
+        }
+        // 加载指定目录下的皮肤
+        else {
+            try {
+                AssetManager assetManager = AssetManager.class.newInstance();
+                // 添加资源进入资源管理器
+                Method addAssetPath = assetManager.getClass().getMethod("addAssetPath", String.class);
+                addAssetPath.setAccessible(true);
+                addAssetPath.invoke(assetManager, path);
+
+                Resources resources = application.getResources();
+                // 横竖、语言
+                Resources skinResource = new Resources(assetManager, resources.getDisplayMetrics(), resources.getConfiguration());
+                //获取外部Apk(皮肤包) 包名
+                PackageManager mPm = application.getPackageManager();
+                PackageInfo info = mPm.getPackageArchiveInfo(path, PackageManager.GET_ACTIVITIES);
+                String packageName = info.packageName;
+                SkinResources.getInstance().applySkin(skinResource, packageName);
+                //保存当前使用的皮肤包
+                SkinPreference.getInstance().setSkin(path);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        //应用皮肤包
+        setChanged();
+        //通知观察者
+        notifyObservers();
+    }
+
+    public void updateSkin(Activity activity) {
+        skinActivityLifecycle.updateSkin(activity);
+    }
+
+
+    /**
+     * 下载皮肤包
+     */
+    public void selectSkin(Context context, Skin skin) {
+        File theme = new File(FileUtils.getExternalAppDirectory(context), "theme");
+        if (theme.exists() && theme.isFile()) {
+            theme.delete();
+        }
+        theme.mkdirs();
+        File skinFile = skin.getSkinFile(theme);
+        if (skinFile.exists()) {
+            Log.e("SkinActivity", "皮肤已存在,开始换肤……");
+            SkinManager.getInstance().loadSkin(skin.path);
+            return;
+        }
+        Log.e("SkinActivity", "皮肤不存在,开始下载……");
+        DownloadManager manager = getDownloadManager(skin, theme);
+        manager.startDownload();
+
+    }
+
+    private static DownloadManager getDownloadManager(Skin skin, File theme) {
+        DownloadManager.DownloadListener downloadListener = new DownloadManager.DownloadListener() {
+            @Override
+            public void onProgressUpdate(int progress) {
+                // 更新UI或日志
+                Log.d("DownloadManager", "onProgressUpdate progress = " + progress);
+
+            }
+
+            @Override
+            public void onDownloadSuccess() {
+                // 下载成功后的处理
+                Log.d("DownloadManager", "onDownloadSuccess");
+                File skinFile = skin.getSkinFile(theme);
+                try {
+                    //下载成功，将皮肤包信息insert已下载数据库
+                    Log.e("SkinActivity", "皮肤包下载完成开始校验");
+                    //皮肤包的md5校验 防止下载文件损坏(但是会减慢速度。从数据库查询已下载皮肤表数据库中保留md5字段)
+                    if (TextUtils.equals(SkinUtils.getSkinMD5(skinFile), skin.md5)) {
+                        Log.d("SkinActivity", "校验成功,修改文件名。");
+
+                    } else {
+                        Log.e("SkinActivity", "校验出错,本地文件MD5 与云端文件MD5 不一致。");
+
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+                SkinManager.getInstance().loadSkin(skin.path);
+            }
+
+            @Override
+            public void onDownloadFailed(Exception e) {
+                // 下载失败后的处理
+                Log.e("DownloadManager", "onDownloadFailed");
+                e.printStackTrace();
+
+            }
+
+            @Override
+            public void onAlreadyDownloading(String url) {
+                // 处理重复下载的情况
+                Log.w("DownloadManager", "onAlreadyDownloading url=" + url);
+
+            }
+        };
+
+        return new DownloadManager(skin.url, theme, downloadListener);
+    }
+}