All ImageButtons are buttons but not necessarily Buttons, and obviously not all buttons are ImageButtons. Are all TextButtons Buttons? Yes, but it's a trick question, because TextButtons don't exist, since Buttons are text buttons.
When
Upper West Sliders couldn't come up with any deals (rare), some simple
text would be displayed informing the user of this sorry state. That's
not really helpful, so I wanted to turn that text into a Button, which
lets them search again. What's a Button? According to Google, inventor
of the Android Button, a Button:
"Represents a push-button widget. Push-buttons can be
pressed, or clicked, by the user to perform an action.
A typical use of a push-button in an activity would be the following:
public class MyActivity extends Activity {
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.content_layout_id);
final Button button = (Button) findViewById(R.id.button_id);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
}
});
}
}"
A button looks pretty basic. Instead of just some text with a rectangular background, why not make the button look like something fun, and delicious, like a hamburger? Yes, Hindus will not like this app, but it will be a big hit in Johnson Market (a Muslim meat market, not a gay bar). To do that we need an ImageButton. Remember that dude, mkyong, I love? Let's ask him for help with an ImageButton:
"
In this tutorial, we show you how to display a button with a background image named “android_button.png“, when user click on it, display a short message. As simple as that.
1. Add Image to Resources
Put image “android_button.png” into “res/drawable-?dpi” folder. So that Android know where to find your image.
2. Add ImageButton
Open “res/layout/main.xml” file, add a “ImageButton” tag, and defined the background image via “android:src“.
3. Code Code
Here’s the code, add a click listener on image button.
package com.mkyong.android;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ImageButton;
import android.widget.Toast;
import android.view.View;
import android.view.View.OnClickListener;
public class MyAndroidAppActivity extends Activity {
ImageButton imageButton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
addListenerOnButton();
}
public void addListenerOnButton() {
imageButton = (ImageButton) findViewById(R.id.imageButton1);
imageButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Toast.makeText(MyAndroidAppActivity.this,
"ImageButton is clicked!", Toast.LENGTH_SHORT).show();
}
});
}
}
4. Demo
Run the application.
1. Result, a button with a customized background image.
2. Click on the button, a short message is displayed.
