Android 单击图片切换效果

标签：android   style   class   java   ext   color   

新建一个Android项目，命名为FrameLayout

此实例主要操作src文件夹下的MainActivity.Java类文件和res/layout下的activity_main.xml布局文件

1.布局主页面代码activity_main.xml↓

<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#897753"
>
<ImageView
android:id="@+id/image1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:visibility="visible"
android:src="@drawable/a"/>
<ImageView
android:id="@+id/image2"
android:visibility="invisible"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:src="@drawable/b"/>
<ImageView
android:id="@+id/image3"
android:visibility="invisible"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:src="@drawable/c"/>

</FrameLayout>

2.Java代码MainActivity.Java↓

package com.example.framelayout;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;

public class MainActivity extends Activity {
private String TAG = "FramLayoutTestActivity";
private ImageView image1;
private ImageView image2;
private ImageView image3;
private List<ImageView> list;

private int count = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
image1 = (ImageView) findViewById(R.id.image1);
image2 = (ImageView) findViewById(R.id.image2);
image3 = (ImageView) findViewById(R.id.image3);
list = new ArrayList<ImageView>();
list.add(image1);
list.add(image2);
list.add(image3);
}

@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
if (event.getAction() == MotionEvent.ACTION_DOWN) {
Log.i(TAG, "move---");
showImage();
}

return super.onTouchEvent(event);
}

private void showImage() {
//image1.setVisibility(View.VISIBLE);
count = count % 3;
for (ImageView i : list) {
i.setVisibility(View.INVISIBLE);
}
list.get(count).setVisibility(View.VISIBLE);
count++;
}

@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;
}
}

3.使用Android模拟器或者连接Android智能手机运行项目，点击程序界面，图片自动切换。

ps: activity_main.xml文件中几个ImageView中的src链接图片需要从外部复制到项目中的res/drawable目录下

Android 单击图片切换效果,布布扣,bubuko.com

Android 单击图片切换效果

标签：android   style   class   java   ext   color   

原文地址：http://www.cnblogs.com/_ymw/p/3715219.html