如何在Android应用程序中使用Intent打开WhatsApp

问题描述：

我希望有一个意图直接将您控制在WhatsApp中.因此，当用户单击按钮时，Intent应该会将您带到WhatsApp. 这是我遵循几条准则后编写的代码，但没有用

I want an Intent to take control you directly to WhatsApp. So the moment the user clicks on the button, the Intent is supposed to take you to WhatsApp. This is the code I wrote after following a few guide lines but it doesn't work

buttonWhatsapp.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            // Performs action on click
            Intent sendIntent = new Intent();
            sendIntent.setAction(Intent.ACTION_SEND);
            sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");
            sendIntent.setType("text/plain");
            sendIntent.setPackage("com.whatsapp");
            startActivity(Intent.createChooser(sendIntent, ""));
            startActivity(sendIntent);
            //opens the portfolio details class
        }
    });

答

使用2018年api:

Using the 2018 api:

String url = "https://api.whatsapp.com/send?phone="+number;
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);

如何在Android应用程序中使用Intent打开WhatsApp

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