如何在 react native 中检查 whatsapp 贴纸是否已添加？

如何解决如何在 react native 中检查 whatsapp 贴纸是否已添加？

我遇到了与 WhatsApp 贴纸实施相关的问题。我使用了 this library 我想检查 WhatsApp 中是否已经添加了特定的贴纸。

我怎样才能做到这一点？请指导我。

解决方法

我使用了来自 this library 的以下文件。 isPackageInstalled() 函数对我有用（注意：我只希望此功能仅适用于 Android）

        package org.roborox.whatsapp;
    
    import android.content.ContentResolver;
    import android.content.Context;
    import android.content.Intent;
    import android.content.pm.ApplicationInfo;
    import android.content.pm.PackageManager;
    import android.content.pm.ProviderInfo;
    import android.database.Cursor;
    import android.net.Uri;
    
    import androidx.annotation.NonNull;

public class WhitelistCheck {
    private static final String AUTHORITY_QUERY_PARAM = "authority";
    private static final String IDENTIFIER_QUERY_PARAM = "identifier";
    private static String STICKER_APP_AUTHORITY = "sticker_pack_authority";// StickerContentProvider.authority;
    public static String CONSUMER_WHATSAPP_PACKAGE_NAME = "com.whatsapp";
    public static String INSTAGRAM_PACKAGE_NAME = "com.instagram.android";
    public static String SMB_WHATSAPP_PACKAGE_NAME = "com.whatsapp.w4b";
    private static String CONTENT_PROVIDER = ".provider.sticker_whitelist_check";
    private static String QUERY_PATH = "is_whitelisted";
    private static String QUERY_RESULT_COLUMN_NAME = "result";

public static boolean isWhitelisted(@NonNull Context context,@NonNull String identifier) {
    try {
        boolean consumerResult = isWhitelistedFromProvider(context,identifier,CONSUMER_WHATSAPP_PACKAGE_NAME);
        boolean smbResult = isWhitelistedFromProvider(context,SMB_WHATSAPP_PACKAGE_NAME);
        return consumerResult && smbResult;
    } catch (Exception e) {
        return false;
    }
}

private static boolean isWhitelistedFromProvider(@NonNull Context context,@NonNull String identifier,String whatsappPackageName) {
    final PackageManager packageManager = context.getPackageManager();
    if (isPackageInstalled(whatsappPackageName,packageManager)) {
        final String whatsappProviderAuthority = whatsappPackageName + CONTENT_PROVIDER;
        final ProviderInfo providerInfo = packageManager.resolveContentProvider(whatsappProviderAuthority,PackageManager.GET_META_DATA);
        // provider is not there.
        if (providerInfo == null) {
            return false;
        }
        final Uri queryUri = new Uri.Builder().scheme(ContentResolver.SCHEME_CONTENT).authority(whatsappProviderAuthority).appendPath(QUERY_PATH).
                appendQueryParameter(AUTHORITY_QUERY_PARAM,BuildConfig.CONTENT_PROVIDER_AUTHORITY).appendQueryParameter(IDENTIFIER_QUERY_PARAM,identifier).build();
        final Cursor cursor = context.getContentResolver().query(queryUri,null,null);

        if (cursor != null && cursor.moveToFirst()) {
            final int whiteListResult = cursor.getInt(cursor.getColumnIndexOrThrow(QUERY_RESULT_COLUMN_NAME));
            return whiteListResult == 1;
        }

    } else {
        //if app is not installed,then don't need to take into its whitelist info into account.
        return true;
    }
    return false;
}

public static boolean isPackageInstalled(String packageName,PackageManager packageManager) {
    try {
        final ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName,0);
        //noinspection SimplifiableIfStatement
        if (applicationInfo != null) {
            return applicationInfo.enabled;
        } else {
            return false;
        }
    } catch (PackageManager.NameNotFoundException e) {
        return false;
    }
}


public static boolean redirectToInstagram(Context context) {
    final PackageManager packageManager = context.getPackageManager();
    if (isPackageInstalled(INSTAGRAM_PACKAGE_NAME,packageManager)) {
        Intent i = context.getPackageManager().getLaunchIntentForPackage(INSTAGRAM_PACKAGE_NAME);
        context.startActivity(i);
        return true;
    } else {
        return false;
        }
    }
}