android插件化開發--修改攜程插件開發支持provider

在用攜程做插件開發的過程中遇到provider不能加載的問題，不需要再androidmanifest.xml中預先配置。

在framework\storage\BundleArchiveRevision.java下修改如下方法：

public void optDexFile() throws Exception {
    List<File> files = new ArrayList<File>();
    files.add(this.bundleFile);
    BundlePathLoader.installBundleDexs(RuntimeArgs.androidApplication.getClassLoader(), revisionDir, files, false);
    installProviders(RuntimeArgs.androidApplication, bundleFile);
}

  

/**

 * 在進程內部安裝provider, 也就是調用 ActivityThread.installContentProviders方法
 *
 * @param context you know
 * @param apkFile
 * @throws Exception
 */
public static void installProviders(Context context, File apkFile) throws Exception {
    List<ProviderInfo> providerInfos = parseProviders(apkFile);

    for (ProviderInfo providerInfo : providerInfos) {
        String pn = context.getPackageName();
        providerInfo.applicationInfo.packageName = pn;
    }

    Log.d("test", providerInfos.toString());
    Class<?> activityThreadClass = Class.forName("android.app.ActivityThread");
    Method currentActivityThreadMethod = activityThreadClass.getDeclaredMethod("currentActivityThread");
    Object currentActivityThread = currentActivityThreadMethod.invoke(null);
    Method installProvidersMethod = activityThreadClass.getDeclaredMethod("installContentProviders", Context.class, List.class);
    installProvidersMethod.setAccessible(true);
    installProvidersMethod.invoke(currentActivityThread, context, providerInfos);
}

/**
 * 解析Apk文件中的 <provider>, 並存儲起來
 * 主要是調用PackageParser類的generateProviderInfo方法
 *
 * @param apkFile 插件對應的apk文件
 * @throws Exception 解析出錯或者反射調用出錯, 均會拋出異常
 */
public static List<ProviderInfo> parseProviders(File apkFile) throws Exception {
    Class<?> packageParserClass = Class.forName("android.content.pm.PackageParser");

    //*****************************
    Constructor<?>[] con = packageParserClass.getConstructors();
    Method m[] = packageParserClass.getDeclaredMethods(); // 取得全部的方法
    for (int i = 0; i < m.length; i++) {
        String mod = Modifier.toString(m[i].getModifiers()); // 取得訪問權限
        String metName = m[i].getName(); // 取得方法名稱
        Class<?> ret = m[i].getReturnType();// 取得返回值類型
        Class<?> param[] = m[i].getParameterTypes(); // 得到全部的參數類型
        Class<?> exc[] = m[i].getExceptionTypes(); // 得到全部的異常
        System.out.print(mod + " " + con.length);//輸出每一方法的訪問權限
        System.out.print(ret + " ");//輸出每一方法的返回值類型
        System.out.print(metName + " (");//輸出每一方法的名字
        for (int x = 0; x < param.length; x++) {//循環輸出每一方法的參數的類型
            System.out.print(param[x] + "arg-" + x);
            if (x < param.length - 1) {
                System.out.print(",");
            }
        }
        System.out.print(") ");
        if (exc.length > 0) {// 有異常拋出
            System.out.print("throws ");
            for (int x = 0; x < exc.length; x++) {//循環輸出每一方法所拋出的異常名字
                System.out.print(exc[x].getName());
                if (x < param.length - 1) {
                    System.out.print(",");
                }
            }
        }
        System.out.println();
    }


    //***************************************
    Method parsePackageMethod;
    Object packageParser;
    Object packageObj;
    try {
        parsePackageMethod = packageParserClass.getDeclaredMethod("parsePackage", File.class, int.class);
        packageParser = packageParserClass.newInstance();
        // 首先調用parsePackage獲取到apk對象對應的Package對象
        packageObj = parsePackageMethod.invoke(packageParser, apkFile,PackageManager.GET_PROVIDERS);
    } catch (NoSuchMethodException e) {
        //華爲
        parsePackageMethod = packageParserClass.getDeclaredMethod("parsePackage", File.class, String.class, DisplayMetrics.class, int.class);
        packageParser = packageParserClass.getConstructor(String.class).newInstance(apkFile.getAbsolutePath());
        // 首先調用parsePackage獲取到apk對象對應的Package對象
        packageObj = parsePackageMethod.invoke(packageParser, apkFile,null,null, PackageManager.GET_PROVIDERS);
    }

    // 讀取Package對象裏面的services字段
    // 接下來要做的就是根據這個List<Provider> 獲取到Provider對應的ProviderInfo
    Field providersField = packageObj.getClass().getDeclaredField("providers");
    List providers = (List) providersField.get(packageObj);

    // 調用generateProviderInfo 方法, 把PackageParser.Provider轉換成ProviderInfo
    Class<?> packageParser$ProviderClass = Class.forName("android.content.pm.PackageParser$Provider");
    Class<?> packageUserStateClass = Class.forName("android.content.pm.PackageUserState");
    Class<?> userHandler = Class.forName("android.os.UserHandle");
    Method getCallingUserIdMethod = userHandler.getDeclaredMethod("getCallingUserId");
    int userId = (Integer) getCallingUserIdMethod.invoke(null);
    Object defaultUserState = packageUserStateClass.newInstance();

    // 需要調用 android.content.pm.PackageParser#generateProviderInfo
    Method generateProviderInfo = packageParserClass.getDeclaredMethod("generateProviderInfo",
            packageParser$ProviderClass, int.class, packageUserStateClass, int.class);

    List<ProviderInfo> ret = new ArrayList<>();
    // 解析出intent對應的Provider組件
    for (Object service : providers) {
        ProviderInfo info = (ProviderInfo) generateProviderInfo.invoke(packageParser, service, 0, defaultUserState, userId);
        ret.add(info);
    }

    return ret;
}