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 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)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void onClick(View v)
{
// TODO Auto-generated method stub
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 the second click: