How to show Snackbar when Activity starts?

Question

I want to show android Snackbar (android.support.design.widget.Snackbar) when the activity starts just like we show a Toast.

Answer 1

I have had trouble myself displaying Snackbar until now. Here is the simplest way to display a Snackbar. To display it as your Main Activity Starts, just put these two lines inside your OnCreate()

    Snackbar snackbar = Snackbar.make(findViewById(android.R.id.content), "Welcome To Main Activity", Snackbar.LENGTH_LONG);
    snackbar.show();

P.S. Just make sure you have imported the Android Design Support.(As mentioned in the question).

For Kotlin,

Snackbar.make(findViewById(android.R.id.content), message, Snackbar.LENGTH_SHORT).show()

Answer 2

call this method in onCreate

Snackbar snack = Snackbar.make(
                    (((Activity) context).findViewById(android.R.id.content)),
                    message + "", Snackbar.LENGTH_SHORT);
snack.setDuration(Snackbar.LENGTH_INDEFINITE);//change Duration as you need
            //snack.setAction(actionButton, new View.OnClickListener());//add your own listener
            View view = snack.getView();
            TextView tv = (TextView) view
                    .findViewById(android.support.design.R.id.snackbar_text);
            tv.setTextColor(Color.WHITE);//change textColor

            TextView tvAction = (TextView) view
                    .findViewById(android.support.design.R.id.snackbar_action);
            tvAction.setTextSize(16);
            tvAction.setTextColor(Color.WHITE);

            snack.show();

Answer 3

Simple way to show some text:

Snackbar.make(view, "Sample Text", Snackbar.LENGTH_SHORT).show();

and to show text with button:

Snackbar.make(view, "Sample Text", Snackbar.LENGTH_SHORT).setAction("Ok", new View.OnClickListener() {
            @Override 
            public void onClick(View view) {

            } 
        }).show();