Android-ImageButton的使用

    技术2022-05-20  56

    ImageButton是上面带有图片的Button,与Button只用类似

     

    第一步:

    首先找到两个图标,在res目录下创建一个名为drawable的文件夹,将图片放入其中

     

    第二步:

    编写main.xml文件,如下

     

    <?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"    ><ImageButton android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content"/><ImageButton android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content"/></LinearLayout>

     

    第三步:

    编写ButtonActivity.java文件

     

    package org.loulijun.buttonTest;

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

    public class ButtonActivity extends Activity implements OnClickListener {    /** Called when the activity is first created. */ ImageButton button1; ImageButton button2;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                button1=(ImageButton)findViewById(R.id.button1);        button1.setImageResource(R.drawable.icon1);        button1.setVisibility(View.VISIBLE);                button2=(ImageButton)findViewById(R.id.button2);        button2.setImageResource(R.drawable.icon2);        button2.setVisibility(View.GONE);                button1.setOnClickListener(this);         button2.setOnClickListener(this);    } @Override public void onClick(View v) {  // TODO Auto-generated method stub   switch(v.getId())   {   case R.id.button1:    button1.setVisibility(View.GONE);//隐藏ImageButton1    button2.setVisibility(View.VISIBLE);//显示ImageButton2    break;   case R.id.button2:    button1.setVisibility(View.VISIBLE);    button2.setVisibility(View.GONE);    break;    default:break;   } }}

     

    第四步:

    运行查看结果

     

    当点击了按钮后,会变成另外一个按钮

     

     

     


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