How to Set Different Events on Successive Clicks on Same Button in Android

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How to Set Different Events on Successive Clicks on Same Button in Android

Introduction

This article explains how to set various events on successive clicks on the same button in Android.

Procedure

Start Eclipse IDE.
Create a new project.
Create a MainActivity.java file.
Create an activity_main.xml file for layout design.
Add a button in the XML layout.
Then look up the button by its id in the MainActivity.java file.
Add various events in the onClick function.

The following is the code.

MainActivity.java

package com.example.doubleclickevent;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
Button b1;
int i = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1 = (Button) findViewById(R.id.btn);
b1.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void onClick(View v) {
if (i == 0) {
Toast.makeText(getApplicationContext(), "hiii abhi", 1000).show();
i++;
} else if (i == 1) {
Toast.makeText(getApplicationContext(), "hello", 1000).show();
i = 0;
}
}
}

activity_main.xml

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ok"
android:id="@+id/btn"/>
</RelativeLayout>

Output

On the first click:

On 1st click

On the second click:

On 2nd click