MetaDataParser.java 文件源码

public String getAuthority(Context context, Class<? extends ContentProvider> providerClass) {
    try {
        PackageInfo packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(),
                PackageManager.GET_PROVIDERS);
        ProviderInfo[] providers = packageInfo.providers;
        if (providers.length > 0) {
            for (int i = 0; i < providers.length; i++) {
                ProviderInfo provider = providers[i];
                if (provider.name.contains(providerClass.getSimpleName())) {
                    return provider.authority;
                }
            }
        }
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
    }
    return null;
}