如何从我的 android 应用程序通过 WhatsApp 向特定联系人发送消息？

Question

我正在开发一个 android 应用程序，我需要从 WhatsApp 向特定联系人发送消息。我试过这段代码：

Uri mUri = Uri.parse("smsto:+999999999");
Intent mIntent = new Intent(Intent.ACTION_SENDTO, mUri);
mIntent.setPackage("com.whatsapp");
mIntent.putExtra("sms_body", "The text goes here");
mIntent.putExtra("chat",true);
startActivity(mIntent);

问题是尽管选择了联系人，但 WhatsApp 没有收到参数 "sms_body"。

Answer 1

尝试使用 Intent.EXTRA_TEXT 而不是 sms_body 作为您的额外密钥。根据 WhatsApp 的文档，这是您必须使用的。

来自 their website 的示例：

Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");
sendIntent.setType("text/plain");
startActivity(sendIntent);

他们的示例使用 Intent.ACTION_SEND 而不是 Intent.ACTION_SENDTO，所以我不确定 WhatsApp 是否支持通过意图系统直接发送给联系人。一些快速测试应该可以让您确定这一点。

Answer 2

有办法。确保您提供的联系人必须作为意向字符串传递，不带前缀“+”。国家代码应作为前缀附加到 phone 号码。

例如：“+918547264285”应作为“918547264285”传递。这里开头的 '91' 是国家代码 .

注意：将 'YOUR_PHONE_NUMBER' 替换为您要向其发送消息的联系人。

这是片段：

 Intent sendIntent = new Intent("android.intent.action.MAIN");
 sendIntent.setComponent(new  ComponentName("com.whatsapp","com.whatsapp.Conversation"));
 sendIntent.putExtra("jid", PhoneNumberUtils.stripSeparators("YOUR_PHONE_NUMBER")+"@s.whatsapp.net");
 startActivity(sendIntent);

更新：

前面提到的 hack 不能用来添加任何特定的消息，所以这是新方法。在此处以国际格式传递用户 mobile，不带任何括号、破折号或加号。示例：如果用户是印度人并且他的手机号码是 94xxxxxxxx ，那么国际格式将是 9194xxxxxxxx。不要错过在手机号码中附加国家代码作为前缀。

  private fun sendMsg(mobile: String, msg: String){
    try {
        val packageManager = requireContext().packageManager
        val i = Intent(Intent.ACTION_VIEW)
        val url =
            "https://wa.me/$mobile" + "?text=" + URLEncoder.encode(msg, "utf-8")
        i.setPackage("com.whatsapp")
        i.data = Uri.parse(url)
        if (i.resolveActivity(packageManager) != null) {
            requireContext().startActivity(i)
        }
    } catch (e: Exception) {
        e.printStackTrace()
    }
}

Note: This approach works only with contacts added in user's Whatsapp account.

Answer 3

这对我有用。

参数 'body' 未被 whatsapp 应用程序变红，请改用 'Intent.EXTRA_TEXT'。

通过设置 'phoneNumber' 您指定要在 whatsapp 中打开的联系人。

Intent sendIntent = new Intent(Intent.ACTION_SENDTO, 
       Uri.parse("smsto:" + "" + phoneNumber + "?body=" + encodedMessage));
sendIntent.putExtra(Intent.EXTRA_TEXT, message);
sendIntent.setPackage("com.whatsapp");
startActivity(sendIntent);

Answer 4

Uri mUri = Uri.parse("smsto:+90000900000");
Intent mIntent = new Intent(Intent.ACTION_SENDTO, mUri);
mIntent.setPackage("com.whatsapp");
mIntent.putExtra("chat",true);
startActivity(Intent.createChooser(mIntent, "Share with"));

非常适合从我的 android 应用程序

向 WhatsApp 上的特定联系人发送消息

Answer 5

伟大的 Hack Rishabh，非常感谢，自从过去 3 年以来我一直在寻找这个解决方案。

根据上面 Rishabh Maurya 的回答，我已经实现了这段代码，它可以很好地用于 WhatsApp 上的文本和图像共享。我已经在我的 android 应用程序中发布了这个，所以如果你想实时查看它，请尝试我的应用程序 Bill Book

请注意，在这两种情况下，它都会打开一个 whatsapp 对话（如果 toNumber 存在于用户 whatsapp 联系人列表中），但用户必须单击发送按钮才能完成操作。这意味着它有助于跳过联系人选择步骤。

对于短信

String toNumber = "+91 98765 43210"; // contains spaces.
toNumber = toNumber.replace("+", "").replace(" ", "");

Intent sendIntent = new Intent("android.intent.action.MAIN");
sendIntent.putExtra("jid", toNumber + "@s.whatsapp.net");
sendIntent.putExtra(Intent.EXTRA_TEXT, message);
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.setPackage("com.whatsapp");
sendIntent.setType("text/plain");
startActivity(sendIntent);

用于分享图片

String toNumber = "+91 98765 43210"; // contains spaces.
toNumber = toNumber.replace("+", "").replace(" ", "");

Intent sendIntent = new Intent("android.intent.action.MAIN");
sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(imageFile));
sendIntent.putExtra("jid", toNumber + "@s.whatsapp.net");
sendIntent.putExtra(Intent.EXTRA_TEXT, message);
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.setPackage("com.whatsapp");
sendIntent.setType("image/png");
context.startActivity(sendIntent);

尽情使用 WhatsApp！

Answer 6

我找到了正确的方法，并且在您阅读这篇文章后很简单：http://howdygeeks.com/send-whatsapp-message-unsaved-number-android/

phone 和消息都是字符串。

源代码：

try {

    PackageManager packageManager = context.getPackageManager();
    Intent i = new Intent(Intent.ACTION_VIEW);

    String url = "https://api.whatsapp.com/send?phone="+ phone +"&text=" + URLEncoder.encode(message, "UTF-8");
    i.setPackage("com.whatsapp");
    i.setData(Uri.parse(url));
    if (i.resolveActivity(packageManager) != null) {
        context.startActivity(i);
    }
} catch (Exception e){
    e.printStackTrace();
}

尽情享受吧！

Answer 7

This new method, send message to a specific contact via whatsapp in Android. For more information look here

            Intent sendIntent = new Intent();
            sendIntent.setAction(Intent.ACTION_VIEW);
            String url = "https://api.whatsapp.com/send?phone=" + number + "&text=" + path;
            sendIntent.setData(Uri.parse(url));
            activity.startActivity(sendIntent);here

Answer 8

我们可以share/send向whats app发送消息。以下是在 Whats-app

上发送短信的示例代码

Single user

private void shareToOneWhatsAppUser(String message) {

    /**
     * NOTE:
     * Message is shared with only one user at a time. and to navigate back to main application user need to click back button
     */
    Intent whatsappIntent = new Intent(Intent.ACTION_SEND);
    whatsappIntent.setType("text/plain");
    whatsappIntent.setPackage("com.whatsapp");
    whatsappIntent.putExtra(Intent.EXTRA_TEXT, message);

    //Directly send to specific mobile number...
    String smsNumber = "919900990099";//Number without with country code and without '+' prifix
    whatsappIntent.putExtra("jid", smsNumber + "@s.whatsapp.net"); //phone number without "+" prefix

    if (whatsappIntent.resolveActivity(getPackageManager()) == null) {
        Toast.makeText(MainActivity.this, "Whatsapp not installed.", Toast.LENGTH_SHORT).show();
        return;
    }

    startActivity(whatsappIntent);
}

Multiple user

private void shareToMultipleWhatsAppUser(String message) {

    /**
     * NOTE:
     *
     * If want to send same message to multiple users then have to select the user to whom you want to share the message & then click send.
     * User navigate back to main Application once he/she select all desired persons and click send button.
     * No need to click Back Button!
     */

    Intent whatsappIntent = new Intent(Intent.ACTION_SEND);
    whatsappIntent.setType("text/plain");
    whatsappIntent.setPackage("com.whatsapp");
    whatsappIntent.putExtra(Intent.EXTRA_TEXT, message);

    if (whatsappIntent.resolveActivity(getPackageManager()) == null) {
        Toast.makeText(MainActivity.this, "Whatsapp not installed.", Toast.LENGTH_SHORT).show();
        return;
    }

    startActivity(whatsappIntent);
}

One more way to achieve the same

private void shareDirecctToSingleWhatsAppUser(String message) {

    /**
     * NOTE:
     * Message is shared with only one user at a time. and to navigate back to main application user need to click back button
     */

    //Directly send to specific mobile number...
    String smsNumber = "919900000000";//Intended user`s mobile number with country code & with out '+'

    PackageManager packageManager = getPackageManager();
    Intent i = new Intent(Intent.ACTION_VIEW);

    try {
        String url = "https://api.whatsapp.com/send?phone="+ smsNumber +"&text=" + URLEncoder.encode("Test Message!", "UTF-8");
        i.setPackage("com.whatsapp");
        i.setData(Uri.parse(url));
        if (i.resolveActivity(packageManager) != null) {
            startActivity(i);
        }
    } catch (Exception e){
        e.printStackTrace();
    }
}

Answer 9

您可以使用此代码：

 Intent sendIntent = new Intent("android.intent.action.MAIN");
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.setPackage("com.whatsapp");
sendIntent.setType("text/plain");
sendIntent.putExtra("jid", "9194******22" + "@s.whatsapp.net");// here 91 is country code
sendIntent.putExtra(Intent.EXTRA_TEXT, "Demo test message");
startActivity(sendIntent);

Answer 10

试试这个代码

Uri uri = Uri.parse("smsto:" + "+6281122xxx");
Intent i = new Intent(Intent.ACTION_SENDTO, uri);
i.putExtra(Intent.EXTRA_TEXT, getResources().getString(R.string.default_message_wa));
i.setPackage("com.whatsapp");
startActivity(Intent.createChooser(i, ""));

你不能像这样将字符串直接放在 putExtra 上

i.putExtra(Intent.EXTRA_TEXT, "YOUR TEXT");

像这样更改您的代码并从资源中获取字符串

i.putExtra(Intent.EXTRA_TEXT, getResources().getString(R.string.default_message_wa));

Answer 11

Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_VIEW); 
String url ="https://wa.me/your number"; 
sendIntent.setData(Uri.parse(url));
startActivity(sendIntent);

Answer 12

这是通过 Whatsapp 向特定号码或未保存的号码发送消息的最佳方式

private void openWhatsApp() {
    String smsNumber = "252634651588";
    boolean isWhatsappInstalled = whatsappInstalledOrNot("com.whatsapp");
    if (isWhatsappInstalled) {

        Intent sendIntent = new Intent("android.intent.action.MAIN");
        sendIntent.setComponent(new ComponentName("com.whatsapp", "com.whatsapp.Conversation"));
        sendIntent.putExtra("jid", PhoneNumberUtils.stripSeparators(smsNumber) + "@s.whatsapp.net");//phone number without "+" prefix

        startActivity(sendIntent);
    } else {
        Uri uri = Uri.parse("market://details?id=com.whatsapp");
        Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri);
        Toast.makeText(getContext(), "WhatsApp not Installed",
                Toast.LENGTH_SHORT).show();
        startActivity(goToMarket);
    }
}

private boolean whatsappInstalledOrNot(String uri) {
    PackageManager pm = Objects.requireNonNull(getContext()).getPackageManager();
    boolean app_installed = false;
    try {
        pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
        app_installed = true;
    } catch (PackageManager.NameNotFoundException e) {
        app_installed = false;
    }
    return app_installed;
}

Answer 13

这是我的方法（更多）：

首先，如果您想确定是否可以发送消息，您可以检查此人的通讯录中是否有 WhatsApp 帐户：

@RequiresPermission(permission.READ_CONTACTS)
public String getContactMimeTypeDataId(@NonNull Context context, String contactId, @NonNull String mimeType) {
    if (TextUtils.isEmpty(mimeType) || !PermissionUtil.hasPermissions(context, Manifest.permission.READ_CONTACTS))
        return null;
    ContentResolver cr = context.getContentResolver();
    Cursor cursor = cr.query(ContactsContract.Data.CONTENT_URI, new String[]{Data._ID}, Data.MIMETYPE + "= ? AND "
            + ContactsContract.Data.CONTACT_ID + "= ?", new String[]{mimeType, contactId}, null);
    if (cursor == null)
        return null;
    if (!cursor.moveToFirst()) {
        cursor.close();
        return null;
    }
    String result = cursor.getString(cursor.getColumnIndex(Data._ID));
    cursor.close();
    return result;
}

如果一切正常，您可以像从网络上一样打开它：

            final String contactMimeTypeDataId = getContactMimeTypeDataId(context, contactId, "vnd.android.cursor.item/vnd.com.whatsapp.profile");
            if (contactMimeTypeDataId != null) {
                final String whatsAppPhoneNumber = PhoneNumberHelper.normalizePhone(phoneNumber);
                String url = "https://api.whatsapp.com/send?phone="+ whatsAppPhoneNumber ;
                intent = new Intent(Intent.ACTION_VIEW,Uri.parse(url));
                intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT | Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET | Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP)
                .setPackage("com.whatsapp");
                startActivity(intent);
            }

您还可以在所有这些之前检查是否安装了 WhatsApp（或删除 setPackage 并检查是否有任何应用程序可以处理 Intent）：

        final PackageManager packageManager = context.getPackageManager();
        final ApplicationInfo applicationInfo = packageManager.getApplicationInfo("com.whatsapp", 0);
        if (applicationInfo == null)
           return;

编辑：关于用 Uri 准备 Intent，我认为这种方式更好：

    @JvmStatic
    fun prepareWhatsAppMessageIntent(normalizedPhoneNumber: String?, message: String? = null): Intent {
//     example url: "https://api.whatsapp.com/send?phone=normalizedPhoneNumber&text=abc"
        val builder = Uri.Builder().scheme("https").authority("api.whatsapp.com").path("send")
        normalizedPhoneNumber?.let { builder.appendQueryParameter("phone", it) }
        message?.let { builder.appendQueryParameter("text", it) }
        return Intent(Intent.ACTION_VIEW, builder.build())
    }

或备选方案（基于here）：

    fun prepareWhatsAppMessageIntent(normalizedPhoneNumber: String?, message: String? = null): Intent {
//     example url: "https://wa.me/normalizedPhoneNumber&text=abc"
        val builder = Uri.Builder().scheme("https").authority("wa.me")
        normalizedPhoneNumber?.let { builder.appendPath(it) }
        message?.let { builder.appendQueryParameter("text", it) }
        return Intent(Intent.ACTION_VIEW, builder.build())
    }

如何从我的 android 应用程序通过 WhatsApp 向特定联系人发送消息？

How can I send message to specific contact through WhatsApp from my android app?

java

android

android-intent

whatsapp

start-activity