读取data/data/ccc.apl（忘了出处）

public String getDataApkPath(String packageName, Context context) {    String dataPath = null;    PackageManager pm = context.getPackageManager();    ApplicationInfo app = null;    try {

       //这种方式就不需要获取系统权限就可以对 data/data/ccc.apk 文件的读取 就可以直接跟补丁包生成新的aPK //进行升级        app = pm.getApplicationInfo(packageName, 0);    } catch (NameNotFoundException e) {        // TODO Auto-generated catch block        e.printStackTrace();    }    if (app != null)        dataPath = app.sourceDir;    return dataPath;}