前言

  最近,右眼皮一直在跳。我知道,我累了。没事,坚持;自然休息也会把握的。

       

android切换图片 switch语句 安卓图片切换_ide

我好想要一个 Google的手表,加油!!

安卓历程

    ①计划中的安卓学习

    ②迷彩灯   图片切换  跟随手指的圈

 

  案例,我喜欢联想。最后面我会分享今天的源代码。

迷彩灯  

    效果图

      

android切换图片 switch语句 安卓图片切换_xml_02

 

    核心代码

 

      MainActivity.java



package sedion.jeffli.action;

import java.util.Timer;
import java.util.TimerTask;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.view.Menu;
import android.widget.TextView;

public class MainActivity extends Activity {

    private int currentColor = 0;
    //定义一个颜色数组
    final int[] colors = new int[]
    {
        R.color.color7,
        R.color.color6,
        R.color.color5,
        R.color.color4,    
        R.color.color3,
        R.color.color2,
        R.color.color1,
    };
    final int[] names = new int[]
    {
        R.id.View01,
        R.id.View02,
        R.id.View03,
        R.id.View04,
        R.id.View05,
        R.id.View06,
        R.id.View07
    };
    
    TextView[] views = new TextView[7];
    
    
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        for (int i = 0 ; i < 7 ; i++)
        {
            views[i] = (TextView)findViewById(names[i]);
        }
        final Handler handler = new Handler()
        {
            @Override
            public void handleMessage(Message msg)
            {
                //表明消息来自本程序所发送
                if(msg.what == 0x1122)
                {
                    //依次改变7个TextView的背景色
                    for(int i = 0 ; i < 7 - currentColor ; i++)    
                    {
                        views[i].setBackgroundResource(colors[i + currentColor]);
                    }
                    for(int i = 7 - currentColor , j = 0 ; i < 7 ; i++ ,j++)
                    {
                        views[i].setBackgroundResource(colors[j]);
                    }
                }
                super.handleMessage(msg);
            }
        };
        //定义一个线程周期性的改变currentColor变量值
        new Timer().schedule(new TimerTask()
        {
            @Override
            public void run()
            {
                currentColor++;
                if(currentColor >= 6)
                {
                    currentColor = 0;
                }
                //发送一条消息通知系统改变7个TextView组件的背景色
                Message m = new Message();
                //给该消息定义一个标识
                m.what = 0x1122;
                handler.sendMessage(m);    
            }        
        }, 0 , 100); 
    }

    @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;
    }

}


View Code


      activity_main.xml




<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<!-- 依次定义7个TextView,先定义的TextView位于底层
    后定义的TextView位于上层 -->
<TextView android:id="@+id/View01"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:width="210px"
    android:height="50px"
    android:background="#ff0000"
    />
<TextView android:id="@+id/View02"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:width="180px"
    android:height="50px"
    android:background="#dd0000"    
    />
<TextView android:id="@+id/View03"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:width="150px"
    android:height="50px"
    android:background="#bb0000"    
    />
<TextView android:id="@+id/View04"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:width="120px"
    android:height="50px"
    android:background="#990000"    
    />
<TextView android:id="@+id/View05"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:width="90px"
    android:height="50px"
    android:background="#770000"    
    />
<TextView android:id="@+id/View06"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:width="60px"
    android:height="50px"
    android:background="#550000"    
    />
<TextView android:id="@+id/View07"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:width="30px"
    android:height="50px"
    android:background="#330000"    
    />        
</FrameLayout>


View Code


      colors.xml




<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="color1">#330000</color>
    <color name="color2">#550000</color>
    <color name="color3">#770000</color>
    <color name="color4">#990000</color>
    <color name="color5">#bb0000</color>
    <color name="color6">#dd0000</color>
    <color name="color7">#ff0000</color>
</resources>


View Code


 

    联想

      这个可以用来{登录前的动画,下载条...}

    

 

图片切换

 

    效果就点下图片下一张。还是代码重要

 

    核心代码

      MainActivity.java




package com.example.imgview;


import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class MainActivity extends Activity {

    //定义一个访问图片的数组
        int[] images = new int[]{
            R.drawable.java,
            R.drawable.ee,
            R.drawable.classic,
            R.drawable.ajax,
            R.drawable.xml,
        };
        int currentImg = 0;
        
        
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        //获取LinearLayout布局容器
        LinearLayout main = (LinearLayout)findViewById(R.id.root);
        //程序创建ImageView组件
        final ImageView image = new ImageView(this);
        //将ImageView组件添加到LinearLayout布局容器中
        main.addView(image);
        //初始化时显示第一张图片
        image.setImageResource(images[0]);
        
        image.setOnClickListener(new OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                if (currentImg >= 4)
                {
                    currentImg = -1;
                }
                //改变ImageView里显示的图片
                image.setImageResource(images[++currentImg]);
            }
        });
    }

    @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;
    }

}


View Code


      activity_main.xml




<?xml version="1.0" encoding="utf-8"?>
<!-- 定义一个线性布局容器 -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/root"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
</LinearLayout>


View Code


 

    联想

      这个可以用来照片墙,照片浏览器,网页端照片浏览....

 

 跟随手指的圈

 

    效果图

      

android切换图片 switch语句 安卓图片切换_java_03

 

    核心代码

      DrawView.java




package com.example.customview;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.View;

public class DrawView extends View{

    public DrawView(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
    }
      
    public float currentX = 40;
    public float currentY = 50;
    
    @Override
    public void onDraw(Canvas canvas){
        super.onDraw(canvas);
        
        //创建画笔
        Paint p = new Paint();
        
        //设置画笔的颜色
        p.setColor(Color.RED);
        
        //绘制一个小球
        canvas.drawCircle(currentX, currentY, 25, p);
    }

}


View Code


      MainActivity.java




package com.example.customview;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.LinearLayout;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        //获取布局文件中的布局
        LinearLayout customViewXml = (LinearLayout)findViewById(R.id.customViewXml);
        
        //创建DrawView组件
        final DrawView draw = new DrawView(this);
        
        //设置自定义组件的最大宽度和高度
        draw.setMinimumWidth(300);
        draw.setMinimumHeight(500);
        
        //为draw组件绑定Touch事件
        draw.setOnTouchListener(new OnTouchListener(){

            @Override
            public boolean onTouch(View v, MotionEvent event) {

                //修改draw组件的currentX , currentY两个属性
                draw.currentX = event.getX();
                draw.currentY = event.getY();
                
                //通知draw组件重绘  invalidate(使无效)
                draw.invalidate();
                
                return true;
            }
            
        });
        
        customViewXml.addView(draw);
    }

    @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;
    }

}


View Code


      activity_main.xml




<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/customViewXml"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

</LinearLayout>


View Code


 

    联想

 

      这个可以用来做游戏哦。O(∩_∩)O哈哈哈~,我我在yy了。哈哈,我花一年时间要做个小小的游戏,贡献出来。希望这个游戏比较好玩,放到大家手上玩的很开心。我就心满意足了....

                

android切换图片 switch语句 安卓图片切换_移动开发_04

像这个也好,只要有好的创意。我就慢慢规划开始....

 

感谢及资源共享

    感谢读者!很喜欢你们给我的支持。如果支持,点个赞。


    上面案例资源分享:

      链接:http://pan.baidu.com/share/link?shareid=2521952349&uk=3307409781 密码:l28t