How to open Gmail Compose when a button is clicked in Android App?

Question

I am trying to open up Gmail Compose screen when a button is clicked in my Android App. Do I need some API key for this from Google? or what do I need to do in my button onC

Answer 1

public static void openGmail(Activity activity,String[] email, String subject, String content) {
    Intent emailIntent = new Intent(Intent.ACTION_SEND);
    emailIntent.putExtra(Intent.EXTRA_EMAIL, email);
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
    emailIntent.setType("text/plain");
    emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, content);
    final PackageManager pm = activity.getPackageManager();
    final List<ResolveInfo> matches = pm.queryIntentActivities(emailIntent, 0);
    ResolveInfo best = null;
    for(final ResolveInfo info : matches)
        if (info.activityInfo.packageName.endsWith(".gm") || info.activityInfo.name.toLowerCase().contains("gmail"))
            best = info;
    if (best != null)
        emailIntent.setClassName(best.activityInfo.packageName, best.activityInfo.name);

    activity.startActivity(emailIntent);
}

Answer 2

<TextView
 android:id="@+id/EmailId"
 android:linksClickable="true"
 android:autoLink="email"
 android:text="info@stackoverflow.com"
 />

This is the best method to send email on click of textView.

Answer 3

I don't know that you can specifically launch gmail. Have you tried this in your onClickListener

Intent emailIntent = new Intent(Intent.ACTION_SEND);
emailIntent.setType("text/plain");
startActivity(emailIntent);  

You can find more details here: Email android intent

Answer 4

Intent intent = new Intent(Intent.ACTION_SEND).setType("text/plain")
                        .putExtra(Intent.EXTRA_EMAIL, new String[]{emails});
                List<ResolveInfo> matches = activity.getPackageManager().queryIntentActivities(intent, 0);
                ResolveInfo best = null;
                for (ResolveInfo info : matches) {
                    if (info.activityInfo.packageName.endsWith(".gm") || info.activityInfo.name.toLowerCase().contains("gmail")) {
                        best = info;
                    }
                }
                if (best != null) {
                    intent.setClassName(best.activityInfo.packageName,best.activityInfo.name);
                }
                activity.startActivity(intent);

Answer 5

You just place below code inside your click event. Will open directly gmail as compose mode, Output screenshot attached below.

Happy coding :-)

code :

Intent intent=new Intent(Intent.ACTION_SEND);
String[] recipients={"mailto@gmail.com"};
intent.putExtra(Intent.EXTRA_EMAIL, recipients);
intent.putExtra(Intent.EXTRA_SUBJECT,"Subject text here...");
intent.putExtra(Intent.EXTRA_TEXT,"Body of the content here...");
intent.putExtra(Intent.EXTRA_CC,"mailcc@gmail.com");
intent.setType("text/html");
intent.setPackage("com.google.android.gm");
startActivity(Intent.createChooser(intent, "Send mail"));

Output :

Answer 6

As JeffC pointed out, it is easy to essentially tell Android that you want to send something email-like and have Android give users a list of choices, which will probably include GMail. If you specifically want GMail, you have to be a bit cleverer. (Note that the correct MIME type is actually "text/plain", not "plain/text". Do to an implementation oddity, GMail seems to be the only activity which responds to the latter, but this isn't a behavior I would count on.)

The following App demonstrates the principle you can follow: actually examine all of the activities which say they can handle your SEND intent and see if any of them look like GMail.

package com.stackoverflow.beekeeper;

import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Bundle;

import java.util.List;

public class StackOverflowTest extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        final Intent intent = new Intent(android.content.Intent.ACTION_SEND);
        intent.setType("text/plain");
        final PackageManager pm = getPackageManager();
        final List<ResolveInfo> matches = pm.queryIntentActivities(intent, 0);
        ResolveInfo best = null;
        for (final ResolveInfo info : matches)
           if (info.activityInfo.packageName.endsWith(".gm") ||
        info.activityInfo.name.toLowerCase().contains("gmail")) best = info;
        if (best != null)
           intent.setClassName(best.activityInfo.packageName, best.activityInfo.name);
        startActivity(intent);
    }
 }