Android ImageButton示例代码

1) XML File: activity_main

1)XML文件：activity_main

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.faraz.imagebutton_example.MainActivity">
<ImageButton
android:id="@+id/imageButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/finger"
tools:layout_editor_absoluteX="130dp"
tools:layout_editor_absoluteY="155dp" />
</android.support.constraint.ConstraintLayout>

2) File: MainActivity.java

2)文件：MainActivity.java

package com.example.faraz.imagebutton_example;
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 MainActivity extends Activity {
ImageButton imageButton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
}
public void addListenerOnButton() {
imageButton = (ImageButton) findViewById(R.id.imageButton1);
imageButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Toast.makeText(MainActivity.this, "You Clicked Image Button!", Toast.LENGTH_LONG).show();
}
});
}
}

Note: Remember image button size should be 100dp and 50dp. You can resize it, but should not be very large.

注意：请记住，图像按钮的大小应为100dp和50dp。您可以调整它的大小，但不要太大。

Output

输出量

After executing your code, you get an image. Actually this is not only an image, but a button containing an image. As you click on the image button a toast message is displayed as “You Clicked Image Button”.

执行代码后，您将得到一张图像。实际上，这不仅是图像，而且是包含图像的按钮。当您单击图像按钮时，烤面包消息将显示为“您单击图像按钮”。