Showing Toast in Android

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Toast is very good solution when need to notify user about something.

For example I always show Toast to the user when it wants to open SDCard which is not mounted (best practice).

I am going to show simple Toast which shows on the center of activity. Please check all methods, you will find a lot of interesting.

Toast msg = Toast.makeText(Main.this, "Message", Toast.LENGTH_LONG);

msg.setGravity(Gravity.CENTER, msg.getXOffset() / 2, msg.getYOffset() / 2);

msg.show();

Interesting method is makeText. 3-rd parameter represents how long should be showed Toast.

Example:

import android.app.Activity;

import android.os.Bundle;

import android.view.Gravity;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

/**

* Class which shows how to show toast

*

* @author FaYna Soft Labs

*/

public class Main extends Activity {

private Button clickBtn;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

clickBtn = (Button) findViewById(R.id.click);

clickBtn.setText("Show message");

clickBtn.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

Toast msg = Toast.makeText(Main.this, "Message", Toast.LENGTH_LONG);

msg.setGravity(Gravity.CENTER, msg.getXOffset() / 2, msg.getYOffset() / 2);

msg.show();

}

});

}

}

Showing notification such this one is very good practice. I am sure that it is useful approach.