C++ AssetManager::addAssetPath方法代码示例

static Vector<SplitDescription> extractSplitDescriptionsFromApk(const String8& path) {
    AssetManager assetManager;
    Vector<SplitDescription> splits;
    int32_t cookie = 0;
    if (!assetManager.addAssetPath(path, &cookie)) {
        return splits;
    }

    const ResTable& res = assetManager.getResources(false);
    if (res.getError() == NO_ERROR) {
        Vector<ResTable_config> configs;
        res.getConfigurations(&configs, true);
        const size_t configCount = configs.size();
        for (size_t i = 0; i < configCount; i++) {
            splits.add();
            splits.editTop().config = configs[i];
        }
    }

    AssetDir* dir = assetManager.openNonAssetDir(cookie, "lib");
    if (dir != NULL) {
        const size_t fileCount = dir->getFileCount();
        for (size_t i = 0; i < fileCount; i++) {
            splits.add();
            Vector<String8> parts = AaptUtil::splitAndLowerCase(dir->getFileName(i), '-');
            if (parseAbi(parts, 0, &splits.editTop()) < 0) {
                fprintf(stderr, "Malformed library %s\n", dir->getFileName(i).string());
                splits.pop();
            }
        }
        delete dir;
    }
    return splits;
}

int doDump(Bundle* bundle)
{
    status_t result = UNKNOWN_ERROR;

    if (bundle->getFileSpecCount() < 1) {
        fprintf(stderr, "ERROR: no dump option specified\n");
        return 1;
    }

    if (bundle->getFileSpecCount() < 2) {
        fprintf(stderr, "ERROR: no dump file specified\n");
        return 1;
    }

    const char* option = bundle->getFileSpecEntry(0);
    const char* filename = bundle->getFileSpecEntry(1);

    AssetManager assets;
    int32_t assetsCookie;
    if (!assets.addAssetPath(String8(filename), &assetsCookie)) {
        fprintf(stderr, "ERROR: dump failed because assets could not be loaded\n");
        return 1;
    }

    // Make a dummy config for retrieving resources...  we need to supply
    // non-default values for some configs so that we can retrieve resources
    // in the app that don't have a default.  The most important of these is
    // the API version because key resources like icons will have an implicit
    // version if they are using newer config types like density.
    ResTable_config config;
    memset(&config, 0, sizeof(ResTable_config));
    config.language[0] = 'e';
    config.language[1] = 'n';
    config.country[0] = 'U';
    config.country[1] = 'S';
    config.orientation = ResTable_config::ORIENTATION_PORT;
    config.density = ResTable_config::DENSITY_MEDIUM;
    config.sdkVersion = 10000; // Very high.
    config.screenWidthDp = 320;
    config.screenHeightDp = 480;
    config.smallestScreenWidthDp = 320;
    config.screenLayout |= ResTable_config::SCREENSIZE_NORMAL;
    assets.setConfiguration(config);

    const ResTable& res = assets.getResources(false);
    if (res.getError() != NO_ERROR) {
        fprintf(stderr, "ERROR: dump failed because the resource table is invalid/corrupt.\n");
        return 1;
    }

    // The dynamicRefTable can be null if there are no resources for this asset cookie.
    // This fine.
    const DynamicRefTable* dynamicRefTable = res.getDynamicRefTableForCookie(assetsCookie);

    Asset* asset = NULL;

    if (strcmp("resources", option) == 0) {
#ifndef __ANDROID__
        res.print(bundle->getValues());
#endif

    } else if (strcmp("strings", option) == 0) {
        const ResStringPool* pool = res.getTableStringBlock(0);
        printStringPool(pool);

    } else if (strcmp("xmltree", option) == 0) {
        if (bundle->getFileSpecCount() < 3) {
            fprintf(stderr, "ERROR: no dump xmltree resource file specified\n");
            goto bail;
        }

        for (int i=2; i<bundle->getFileSpecCount(); i++) {
            const char* resname = bundle->getFileSpecEntry(i);
            ResXMLTree tree(dynamicRefTable);
            asset = assets.openNonAsset(assetsCookie, resname, Asset::ACCESS_BUFFER);
            if (asset == NULL) {
                fprintf(stderr, "ERROR: dump failed because resource %s found\n", resname);
                goto bail;
            }

            if (tree.setTo(asset->getBuffer(true),
                           asset->getLength()) != NO_ERROR) {
                fprintf(stderr, "ERROR: Resource %s is corrupt\n", resname);
                goto bail;
            }
            tree.restart();
            printXMLBlock(&tree);
            tree.uninit();
            delete asset;
            asset = NULL;
        }

    } else if (strcmp("xmlstrings", option) == 0) {
        if (bundle->getFileSpecCount() < 3) {
            fprintf(stderr, "ERROR: no dump xmltree resource file specified\n");
            goto bail;
        }

        for (int i=2; i<bundle->getFileSpecCount(); i++) {
            const char* resname = bundle->getFileSpecEntry(i);
//.........这里部分代码省略.........

static bool getAppInfo(const String8& path, AppInfo& outInfo) {
    memset(&outInfo, 0, sizeof(outInfo));

    AssetManager assetManager;
    int32_t cookie = 0;
    if (!assetManager.addAssetPath(path, &cookie)) {
        return false;
    }

    Asset* asset = assetManager.openNonAsset(cookie, "AndroidManifest.xml", Asset::ACCESS_BUFFER);
    if (asset == NULL) {
        return false;
    }

    ResXMLTree xml;
    if (xml.setTo(asset->getBuffer(true), asset->getLength(), false) != NO_ERROR) {
        delete asset;
        return false;
    }

    const String16 kAndroidNamespace("http://schemas.android.com/apk/res/android");
    const String16 kManifestTag("manifest");
    const String16 kApplicationTag("application");
    const String16 kUsesSdkTag("uses-sdk");
    const String16 kVersionCodeAttr("versionCode");
    const String16 kMultiArchAttr("multiArch");
    const String16 kMinSdkVersionAttr("minSdkVersion");

    ResXMLParser::event_code_t event;
    while ((event = xml.next()) != ResXMLParser::BAD_DOCUMENT &&
            event != ResXMLParser::END_DOCUMENT) {
        if (event != ResXMLParser::START_TAG) {
            continue;
        }

        size_t len;
        const char16_t* name = xml.getElementName(&len);
        String16 name16(name, len);
        if (name16 == kManifestTag) {
            ssize_t idx = xml.indexOfAttribute(
                    kAndroidNamespace.string(), kAndroidNamespace.size(),
                    kVersionCodeAttr.string(), kVersionCodeAttr.size());
            if (idx >= 0) {
                outInfo.versionCode = xml.getAttributeData(idx);
            }

        } else if (name16 == kApplicationTag) {
            ssize_t idx = xml.indexOfAttribute(
                    kAndroidNamespace.string(), kAndroidNamespace.size(),
                    kMultiArchAttr.string(), kMultiArchAttr.size());
            if (idx >= 0) {
                outInfo.multiArch = xml.getAttributeData(idx) != 0;
            }

        } else if (name16 == kUsesSdkTag) {
            ssize_t idx = xml.indexOfAttribute(
                    kAndroidNamespace.string(), kAndroidNamespace.size(),
                    kMinSdkVersionAttr.string(), kMinSdkVersionAttr.size());
            if (idx >= 0) {
                uint16_t type = xml.getAttributeDataType(idx);
                if (type >= Res_value::TYPE_FIRST_INT && type <= Res_value::TYPE_LAST_INT) {
                    outInfo.minSdkVersion = xml.getAttributeData(idx);
                } else if (type == Res_value::TYPE_STRING) {
                    String8 minSdk8(xml.getStrings().string8ObjectAt(idx));
                    char* endPtr;
                    int minSdk = strtol(minSdk8.string(), &endPtr, 10);
                    if (endPtr != minSdk8.string() + minSdk8.size()) {
                        fprintf(stderr, "warning: failed to parse android:minSdkVersion '%s'\n",
                                minSdk8.string());
                    } else {
                        outInfo.minSdkVersion = minSdk;
                    }
                } else {
                    fprintf(stderr, "warning: unrecognized value for android:minSdkVersion.\n");
                }
            }
        }
    }

    delete asset;
    return true;
}