How to replace the system.out with Toasts inside a thread [duplicate]

Answer 1

    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            try {
                //pick one:

                //if activity
                Toast.makeText(YOURACTIVITYNAME.this, "help", Toast.LENGTH_LONG).show();

                //if fragment
                Toast.makeText(getActivity(), "help", Toast.LENGTH_LONG).show();
            } catch (final Exception e) {

            }
        }
    });

Answer 2

You can do it like this
Handler handler = new Handler(); //Before your Thread

 //Within your thread
 handler.post(new Runnable(){
                public void run() {
                   Toast.makeText(getApplicationContext(), "help", Toast.LENGTH_LONG).show();
            }
         });

Answer 3

Use library Xdroid:

dependencies {
    compile 'com.shamanland:xdroid-toaster:0.2.4'
}

There are quite good approaches:

1. Context variable is not required.
2. runOnUiThread() is not required.

Just invoke the single method!

// using the resource string
Toaster.toast(R.string.my_msg);
// or hard-coded string
Toaster.toast("Hello Xdroid!");

There are more examples here: https://github.com/shamanland/xdroid-toaster-example