How to create a toast via button click

[zoheb hassan]

This is the code i wrote for it, I just want to post a toast message when user clicks a button

The main.xml file is as follows

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
<Button
	android:id="@+id/tot"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:text="Wait For It!"/>
</LinearLayout>

and the Toaster.java file is as follows

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class Toaster extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
    public void myClickHandler(View v){
    	Button but=(Button)findViewById(R.id.tot);
    	but.isClickable();
    	switch(v.getId()){
    	case R.id.tot:
    		if(but.isPressed()){
    		Toast toast=Toast.makeText(this, "All hail King Julien", Toast.LENGTH_LONG);
    		toast.show();
    		}
    		else but.setText("Nothing happened");
    		break;
    	}
    }
}

Can you please look at this code and tell me what i am doing wrong
Thanks

[Monu Tripathi]

1. To listen for click events, you need to attach a OnClickListener with the button (using setOnClickListener() API)
2. When you override the onClick() method, use it to display Toast.

[zoheb hassan]

Hey Monu, I did initially try this piece of code however i did not work,It was throwing the following error

The method makeText(Context, CharSequence, int) in the type Toast is not applicable for the arguments (new View.OnClickListener(){}, String, int)

The code i initially tried is as follows

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import android.view.View.OnClickListener;

public class Toaster extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button but=(Button)findViewById(R.id.tot);
        but.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
			Toast toast=Toast.makeText(this, "All hail King Julien", Toast.LENGTH_LONG);//This is where the error shows
			toast.show();
			}
		});
    }

[zoheb hassan]

Well Problem solved.I just had to set a property with a button in xml

all the code remains the same the only addition takes place in main.xml file under button attribute which is

android:onClick="myClickHandler"

Thats about it

[Krishna Srinivasan]

This article has good explanation:
http://techbreaths.com/2013/01/how-create-toast-message-android/

[Android ituts]

package com.roney.toast;

import android.app.Activity; import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class ToastActivity extends Activity

{

private Button button;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

button = (Button) findViewById(R.id.buttonToast);

button.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View arg0)

{

Toast.makeText(getApplicationContext(),"Button is clicked", Toast.LENGTH_LONG).show();

}

});

}

}