Android 通过 WhatsApp 发送消息

发布于04月11日

因为我发现了一些更老的帖子，说WhatsApp不支持这一点，我想知道是否有什么事情发生了变化，是否有办法打开WhatsApp与我通过意向发送的号码的"聊天"？

推荐答案

UPDATE

WhatsApp的点击聊天功能允许你开始与

使用:https://wa.me/15551234567

不要使用:https://wa.me/+001-(555)1234567

示例:https://wa.me/15551234567?text=I'm%20interested%20in%20your%20car%20for%20sale

Original answer

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