通过WhatsApp发送消息-Java 学习之路

由于我发现了一些较旧的帖子，告诉whatsapp不支持这个，我想知道是否有什么改变了，是否有办法打开一个whatsapp'聊天'与我通过意图发送的号码？

16 回答

检查此代码，

public void share(String subject,String text) {
     final Intent intent = new Intent(Intent.ACTION_SEND);

String score=1000;
     intent.setType("text/plain");
     intent.putExtra(Intent.EXTRA_SUBJECT, score);
     intent.putExtra(Intent.EXTRA_TEXT, text);

     startActivity(Intent.createChooser(intent, getString(R.string.share)));
}

回复于 2024-05-05T18:44:17+08:00

154

UPDATE 请参阅https://faq.whatsapp.com/en/android/26000030/?category=5245251

WhatsApp的点击聊天功能允许您开始与某人聊天，而无需将电话号码保存在手机的地址簿中 . 只要您知道此人的电话号码，您就可以创建一个链接，以便与他们开始聊天 . 使用：https：//api.whatsapp.com/send？phone = 15551234567请勿使用：https：//api.whatsapp.com/send？phone = 001-（555）1234567示例：https：// api . whatsapp.com/send?phone=15551234567&text=I'm%20interested%20in%20your%20car%20for%20sale

Original answer 这是解决方案

public void onClickWhatsApp(View view) {

    PackageManager pm=getPackageManager();
    try {

        Intent waIntent = new Intent(Intent.ACTION_SEND);
        waIntent.setType("text/plain");
        String text = "YOUR TEXT HERE";

        PackageInfo info=pm.getPackageInfo("com.whatsapp", PackageManager.GET_META_DATA);
        //Check if package exists or not. If not then code 
        //in catch block will be called
        waIntent.setPackage("com.whatsapp");

        waIntent.putExtra(Intent.EXTRA_TEXT, text);
        startActivity(Intent.createChooser(waIntent, "Share with"));

   } catch (NameNotFoundException e) {
        Toast.makeText(this, "WhatsApp not Installed", Toast.LENGTH_SHORT)
                .show();
   }  

}

另见http://www.whatsapp.com/faq/en/android/28000012

回复于 2024-05-05T18:44:17+08:00

使用此代码，您可以使用给定的号码打开whatsapp聊天 .

void openWhatsappContact(String number) {
    Uri uri = Uri.parse("smsto:" + number);
    Intent i = new Intent(Intent.ACTION_SENDTO, uri);
    i.setPackage("com.whatsapp");  
    startActivity(Intent.createChooser(i, ""));
}

回复于 2024-05-05T18:44:17+08:00

我找到了以下解决方案，首先你需要whatsapp id：

与此处和其他论坛中的其他一些主题的报告相匹配，我发现的登录名是某种形式：没有0的国际区号或者没有第一个0的开头电话号码@ s.whatsapp.net

例如，如果您居住在荷兰并且电话号码为0612325032，那么它将是31612325023@s.whatsapp.net - > 31，荷兰没有0，或者电话号码没有0 .

public void sendWhatsAppMessageTo(String whatsappid) {

Cursor c = getSherlockActivity().getContentResolver().query(ContactsContract.Data.CONTENT_URI,
        new String[] { ContactsContract.Contacts.Data._ID }, ContactsContract.Data.DATA1 + "=?",
        new String[] { whatsappid }, null);
c.moveToFirst();

Intent whatsapp = new Intent(Intent.ACTION_VIEW, Uri.parse("content://com.android.contacts/data/" + c.getString(0)));
c.close();

 if (whatsapp != null) {

startActivity(whatsapp);      

} else {
        Toast.makeText(this, "WhatsApp not Installed", Toast.LENGTH_SHORT)
                .show();
//download for example after dialog
                Uri uri = Uri.parse("market://details?id=com.whatsapp");
                Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri);
    }

}

回复于 2024-05-05T18:44:17+08:00

无论是否安装Whatsapp，这都应该有效 .

boolean isWhatsappInstalled = whatsappInstalledOrNot("com.whatsapp");
        if (isWhatsappInstalled) {
            Uri uri = Uri.parse("smsto:" + "98*********7")
            Intent sendIntent = new Intent(Intent.ACTION_SENDTO, uri);
            sendIntent.putExtra(Intent.EXTRA_TEXT, "Hai Good Morning");
            sendIntent.setType("text/plain");
            sendIntent.setPackage("com.whatsapp");
            startActivity(sendIntent);
        } else {
            Toast.makeText(this, "WhatsApp not Installed",
                    Toast.LENGTH_SHORT).show();
            Uri uri = Uri.parse("market://details?id=com.whatsapp");
            Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri);
            startActivity(goToMarket);

        }

private boolean whatsappInstalledOrNot(String uri) {
    PackageManager pm = 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;
}

回复于 2024-05-05T18:44:17+08:00

0
在 Marshmallow S5 上测试过它有效！
```
Uri uri = Uri.parse("smsto:" + "phone number with country code");
    Intent sendIntent = new Intent(Intent.ACTION_SENDTO, uri);
    sendIntent.setPackage("com.whatsapp");
    startActivity(sendIntent);
```
这将与一个人打开 direct 聊天，如果未安装whatsup这将throw exception，如果电话号码不知道whatsup他们将提供通过短信或简单的短信发送邀请
回复于 2024-05-05T18:44:17+08:00

试试这个，这段代码通过Intent.ACTION_VIEW启动WhatsApp，不要忘记使用国家代码到电话号码 .

startActivity(new Intent(Intent.ACTION_VIEW,
                        Uri.parse(
                                "https://api.whatsapp.com/send?phone=+628119xxx&text=I'm%20interested%20in%20your%20car%20for%20sale"
                        )));

回复于 2024-05-05T18:44:17+08:00

这对我有用：

PackageManager pm = context.getPackageManager();
try {
    pm.getPackageInfo("com.whatsapp", PackageManager.GET_ACTIVITIES);
    Intent intent = new Intent();
            intent.setComponent(new ComponentName(packageName,
                    ri.activityInfo.name));
            intent.setType("text/plain");
            intent.putExtra(Intent.EXTRA_TEXT, element);

} catch (NameNotFoundException e) {
    ToastHelper.MakeShortText("Whatsapp have not been installed.");
}

回复于 2024-05-05T18:44:17+08:00

54
以下代码由Google Now App使用，不适用于任何其他应用程序 .

我写这篇文章是因为它让我很生气，WhatsApp不允许任何其他开发者直接发送消息，除了谷歌 .

我希望其他自由开发人员知道，这种合作正在进行，而谷歌一直在谈论“对任何人开放”，WhatsApp表示他们不想向开发者提供任何访问权限 .

最近WhatsApp特别为Google Now添加了一个Intent，它应如下所示：
```
Intent intent = new Intent("com.google.android.voicesearch.SEND_MESSAGE_TO_CONTACTS");
intent.setPackage("com.whatsapp");
intent.setComponent(new ComponentName("com.whatsapp", "com.whatsapp.VoiceMessagingActivity"));

intent.putExtra("com.google.android.voicesearch.extra.RECIPIENT_CONTACT_CHAT_ID", number);
intent.putExtra("android.intent.extra.TEXT", text);
intent.putExtra("search_action_token", ?????);
```
我还可以发现“search_action_token”是一个包含IBinder-Object的PendingIntent，如果它是由Google Now创建的，则会将其发送回Google App并进行检查 .

否则WhatsApp将不接受该消息 .
回复于 2024-05-05T18:44:17+08:00
0
目前，the only official API您可以提出GET请求：
```
https://api.whatsapp.com/send?phone=919773207706&text=Hello
```
无论如何，有一个secret API program already being ran by WhatsApp
回复于 2024-05-05T18:44:17+08:00

这是漫长而乖乖的工作 . 享受你的代码:)

//method used to show IMs
private void show_custom_chooser(String value) {
    List<ResolveInfo> list = null;
    final Intent email = new Intent(Intent.ACTION_SEND);
    email.setData(Uri.parse("sms:"));
    email.putExtra(Intent.EXTRA_TEXT, "" + value);
    email.setType("text/plain"); // vnd.android-dir/mms-sms

    WindowManager.LayoutParams WMLP = dialogCustomChooser.getWindow()
            .getAttributes();
    WMLP.gravity = Gravity.CENTER;
    dialogCustomChooser.getWindow().setAttributes(WMLP);
    dialogCustomChooser.getWindow().setBackgroundDrawable(
            new ColorDrawable(android.graphics.Color.TRANSPARENT));
    dialogCustomChooser.setCanceledOnTouchOutside(true);
    dialogCustomChooser.setContentView(R.layout.about_dialog);
    dialogCustomChooser.setCancelable(true);
    ListView lvOfIms = (ListView) dialogCustomChooser
            .findViewById(R.id.listView1);
    PackageManager pm = getPackageManager();
    List<ResolveInfo> launchables = pm.queryIntentActivities(email, 0);
    // ////////////new
    list = new ArrayList<ResolveInfo>();
    for (int i = 0; i < launchables.size(); i++) {
        String string = launchables.get(i).toString();
        Log.d("heh", string);
//check only messangers
        if (string.contains("whatsapp")) {
            list.add(launchables.get(i));
        }
    }
    Collections.sort(list, new ResolveInfo.DisplayNameComparator(pm));
    int size = launchables.size();
    adapter = new AppAdapter(pm, list, MainActivity.this);
    lvOfIms.setAdapter(adapter);
    lvOfIms.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1,
                int position, long arg3) {
            ResolveInfo launchable = adapter.getItem(position);
            ActivityInfo activity = launchable.activityInfo;
            ComponentName name = new ComponentName(
                    activity.applicationInfo.packageName, activity.name);
            email.addCategory(Intent.CATEGORY_LAUNCHER);
            email.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                    | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
            email.setComponent(name);
            startActivity(email);
            dialogCustomChooser.dismiss();
        }
    });
    dialogCustomChooser.show();

}

回复于 2024-05-05T18:44:17+08:00

我现在真的很晚，但我相信现在我们有更短更好的解决方案来通过WhatsApp发送消息 .

您可以使用以下命令调用系统选择器，然后选择您将使用哪个应用程序来共享您想要的任何内容 .

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);

如果你真的需要通过WhatsApp发送所有你需要做的是以下（你将跳过系统选择器）

Intent sendIntent = new Intent();
    sendIntent.setAction(Intent.ACTION_SEND);
    sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");
    sendIntent.setType("text/plain");
    // Put this line here
    sendIntent.setPackage("com.whatsapp");
    //
    startActivity(sendIntent);

如果您需要更多信息，请在此处找到：WhatsApp FAQ

回复于 2024-05-05T18:44:17+08:00

这对我有用：

public static void shareWhatsApp(Activity appActivity, String texto) {

    Intent sendIntent = new Intent(Intent.ACTION_SEND);     
    sendIntent.setType("text/plain");
    sendIntent.putExtra(android.content.Intent.EXTRA_TEXT, texto);

    PackageManager pm = appActivity.getApplicationContext().getPackageManager();
    final List<ResolveInfo> matches = pm.queryIntentActivities(sendIntent, 0);
    boolean temWhatsApp = false;
    for (final ResolveInfo info : matches) {
      if (info.activityInfo.packageName.startsWith("com.whatsapp"))  {
          final ComponentName name = new ComponentName(info.activityInfo.applicationInfo.packageName, info.activityInfo.name);
          sendIntent.addCategory(Intent.CATEGORY_LAUNCHER);
          sendIntent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_ACTIVITY_NEW_TASK);
          sendIntent.setComponent(name);
          temWhatsApp = true;
          break;
      }
    }               

    if(temWhatsApp) {
        //abre whatsapp
        appActivity.startActivity(sendIntent);
    } else {
        //alerta - você deve ter o whatsapp instalado
        Toast.makeText(appActivity, appActivity.getString(R.string.share_whatsapp), Toast.LENGTH_SHORT).show();
    }
}

回复于 2024-05-05T18:44:17+08:00

获取要发送消息的联系人号码并为whatsapp创建uri，此处c是返回所选联系人的Cursor .

Uri.parse("content://com.android.contacts/data/" + c.getString(0)));
i.setType("text/plain");
i.setPackage("com.whatsapp");           // so that only Whatsapp reacts and not the chooser
i.putExtra(Intent.EXTRA_SUBJECT, "Subject");
i.putExtra(Intent.EXTRA_TEXT, "I'm the body.");
startActivity(i);

回复于 2024-05-05T18:44:17+08:00

13
正如documentation所说，您可以使用以下URL：

https://wa.me/15551234567

最后一段是E164 Format中的数字
```
Uri uri = Uri.parse("https://wa.me/15551234567");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
```
回复于 2024-05-05T18:44:17+08:00

可以在c中使用以下API，如my article所示 .

您需要定义几个常量：

//
#define    GroupAdmin                <YOUR GROUP ADMIN MOBILE PHONE>
#define GroupName                <YOUR GROUP NAME>
#define CLIENT_ID                <YOUR CLIENT ID>
#define CLIENT_SECRET            <YOUR CLIENT SECRET>

#define GROUP_API_SERVER        L"api.whatsmate.net"
#define GROUP_API_PATH          L"/v3/whatsapp/group/text/message/12"
#define IMAGE_SINGLE_API_URL    L"http://api.whatsmate.net/v3/whatsapp/group/image/message/12"

//

然后连接到API的 endpoints .

hOpenHandle = InternetOpen(_T("HTTP"), INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
if (hOpenHandle == NULL)
{
    return false;
}

hConnectHandle = InternetConnect(hOpenHandle,
    GROUP_API_SERVER,
    INTERNET_DEFAULT_HTTP_PORT,
    NULL, NULL, INTERNET_SERVICE_HTTP,
    0, 1);

if (hConnectHandle == NULL)
{
    InternetCloseHandle(hOpenHandle);
    return false;
}

然后发送 Headers 和正文并等待需要“OK”的结果 .

第1步 - 打开HTTP请求：

const wchar_t *AcceptTypes[] = { _T("application/json"),NULL };
HINTERNET hRequest = HttpOpenRequest(hConnectHandle, _T("POST"), GROUP_API_PATH, NULL, NULL, AcceptTypes, 0, 0);

if (hRequest == NULL)
{
    InternetCloseHandle(hConnectHandle);
    InternetCloseHandle(hOpenHandle);
    return false;
}

第2步 - 发送 Headers ：

std::wstring HeaderData;

HeaderData += _T("X-WM-CLIENT-ID: ");
HeaderData += _T(CLIENT_ID);
HeaderData += _T("\r\nX-WM-CLIENT-SECRET: ");
HeaderData += _T(CLIENT_SECRET);
HeaderData += _T("\r\n");
HttpAddRequestHeaders(hRequest, HeaderData.c_str(), HeaderData.size(), NULL);

第3步 - 发送消息：

std::wstring WJsonData;
WJsonData += _T("{");
WJsonData += _T("\"group_admin\":\"");
WJsonData += groupAdmin;
WJsonData += _T("\",");
WJsonData += _T("\"group_name\":\"");
WJsonData += groupName;
WJsonData += _T("\",");
WJsonData += _T("\"message\":\"");
WJsonData += message;
WJsonData += _T("\"");
WJsonData += _T("}");

const std::string JsonData(WJsonData.begin(), WJsonData.end());

bResults = HttpSendRequest(hRequest, NULL, 0, (LPVOID)(JsonData.c_str()), JsonData.size());

现在只需查看结果：

TCHAR StatusText[BUFFER_LENGTH] = { 0 };
DWORD StatusTextLen = BUFFER_LENGTH;
HttpQueryInfo(hRequest, HTTP_QUERY_STATUS_TEXT, &StatusText, &StatusTextLen, NULL);
bResults = (StatusTextLen && wcscmp(StatusText, L"OK")==FALSE);

回复于 2024-05-05T18:44:17+08:00

通过WhatsApp发送消息

16 回答

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