如何使用 WhatsApp Api 从企业向客户发送消息

How to use WhatsApp Api to send messages from Businesses to Customers

我正在为本地企业开发 B2C 应用程序。我将为企业和客户开发单独的应用程序,但为了迎合还没有该应用程序的客户,我希望为企业提供这样的功能,即他们可以通过我的业务应用程序从客户的 WhatsApp 号码向客户的 WhatsApp 发送发票。

我怎样才能做到这一点?

提前致谢

这取决于你的发票是什么格式,如果是纯文本或图像,对于Android你可以使用Intent分享它到 WhatsApp


1.分享文字

public void onClick(View view) {
    String packageName = "com.tencent.mm";          //you can try "com.whatsapp" for WhatsApp or "com.facebook.orca" for Messenger

    if (isAppInstalled(packageName)) {              //if app found
        String text = "I love you";

        Intent intent = new Intent(Intent.ACTION_SEND);

        intent.setType("text/plain");
        intent.putExtra(Intent.EXTRA_TEXT, text);
        intent.setPackage(packageName);

        startActivity(intent);
    } else {
        Toast.makeText(view.getContext(), "WeChat is not installed", Toast.LENGTH_SHORT).show();
    }
}

private boolean isAppInstalled(String packageName) {
    boolean installed = true;

    try {
        getPackageManager().getPackageInfo(packageName, 0); //if package not found, exception will be thrown
    } catch (PackageManager.NameNotFoundException e) {
        installed = false;
    }

    return installed;
}

2。分享图片

shareButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        Intent intent = new Intent(Intent.ACTION_SEND);

        intent.setType("image/*");
        intent.putExtra(Intent.EXTRA_STREAM, imageUri);     //uri from loading onto the page
        intent.setPackage(packageName);             //such as "com.tencent.mm"

        startActivity(intent);
    }
});