如何检查whatsapp贴纸是否已经在react native中添加?

Question

我正面临一个与WhatsApp贴纸实施相关的问题。我已经使用了这个库，我想检查特定的贴纸是否已经添加到WhatsApp中。

我怎样才能做到这一点?请给我指路。

Answer 1

我从这个库中使用了下面的文件。isPackageInstalled()函数为我工作(注意:我只是希望这个功能只适用于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, identifier, 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, 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;
}
}
}