我正在开发一个Android应用程序，我需要向WhatsApp的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);
问题是虽然选择了联系人，但WhatsApp上没有收到参数“sms_body”。
尝试使用Intent.EXTRA_TEXT而不是sms_body作为额外的密钥。根据WhatsApp的文档，这是您必须使用的。
来自their website的一个例子：
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);
他们的例子使用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。一些快速测试应该让你确定。
我们可以分享/发送消息到什么应用程序。以下是在Whats-app上发送短信的示例代码
- 单用户
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);
}
- 多个用户
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);
}
另一种实现相同的方法
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();
}
}
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, ""));
你不能像这样直接把字符串放在putExtra上
i.putExtra(Intent.EXTRA_TEXT, "YOUR TEXT");
更改您的代码并从这样的资源中获取字符串
i.putExtra(Intent.EXTRA_TEXT, getResources().getString(R.string.default_message_wa));
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_VIEW);
String url ="https://wa.me/your number";
sendIntent.setData(Uri.parse(url));
startActivity(sendIntent);
这是我的方法：
首先，您检查该人是否拥有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;
}
如果一切顺利的话，你就像打开网页一样打开它：
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WhatsApp是否已安装：
final PackageManager packageManager = context.getPackageManager();
final ApplicationInfo applicationInfo = packageManager.getApplicationInfo("com.whatsapp", 0);
if (applicationInfo == null)
return;
有一种方法。确保您提供的联系人必须作为意向字符串传递，而不带前缀“+”。国家/地区代码应作为电话号码的前缀附加。
例如：'+ 918547264285'应作为'918547264285'传递。这里的'91'开头是国家代码。
注意：将“YOUR_PHONE_NUMBER”替换为您要向其发送邮件的联系人。
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);
这种新方法，通过Android中的whatsapp向特定联系人发送消息。有关更多信息，请查看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
我找到了正确的方法来做这件事，看完这篇文章后就很简单了：http://howdygeeks.com/send-whatsapp-message-unsaved-number-android/
电话和消息都是String。
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();
}
请享用！
非常好的黑客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Rishabh Maurya上面的回答，我已经实现了这个代码，它在WhatsApp上的文本和图像共享都很好。我已经在我的Android应用程序中发布了这个，所以如果你想看到它现场尝试我的应用程序Bill Book
请注意，在这两种情况下，它都会打开一个whatsapp会话（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。
用于短信
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);
用于共享图像
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);
享受WhatsApping！
你可以使用这段代码：
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);
这是通过Whatsapp将消息发送到特定号码或未保存号码的最佳方式
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;
}
这对我有用。
whatsapp应用程序参数'body'不会变红，而是使用'Intent.EXTRA_TEXT'。
通过设置'phoneNumber'，您可以指定要在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);
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