ConfigurationView.java

package com.hyrt.cei.ui.econdata.view;

import com.hyrt.cei.ui.econdata.EconDateNumberActivity;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.TextView;

public class ConfigurationView extends View {
	// 柱状图界面的宽高
	public  final int WIDTH = 700;// 280
	public  final int HEIGHT = 800;// 250

	private Paint paint;
	private Paint font_Paint;
	// 数值显示的偏移量
	private int numWidth = 9;
	
	// 起始高度为 最大高度减去 80 【注意这里的高度是反的，也就是说，y轴是逐渐减少的】
	private float startHeight = HEIGHT-80;
	private float endHeight = startHeight;
	// 柱状图的宽度
	private int viewWidth = 40;
	
	// 组态图的高度 【显示的数值，100 为 100%】
	private int maxSize = 43;
	private int indexSize = 0;
	// 要显示的模式 【类型，比如：℃和百分比等】
	private String displayMode = "%";
	// 模式
	private boolean mode = false;
	// 线程控制
	private boolean display = true;
	// 是否开启动画效果
	private boolean animMode = true;

	/**
	 * 
	 * @param context
	 * @param maxSize 需要显示的数值
	 * @param displayMode 显示的类型
	 */
	public ConfigurationView(Context context, int maxSize, String displayMode) {
		super(context);
		this.maxSize = maxSize;
		this.displayMode = displayMode;
		init();
	}
	
	/**
	 * 
	 * @param context
	 * @param maxSize		需要显示的数值
	 * @param displayMode	显示的类型
	 * @param mode			显示的模式，默认为false，数值越高，颜色越偏向红色。为true反之
	 */
	public ConfigurationView(Context context, int maxSize, String displayMode, boolean mode) {
		super(context);
		this.maxSize = maxSize;
		this.displayMode = displayMode;
		this.mode = mode;
		init();
	}
	
	/**
	 * 
	 * @param context
	 * @param maxSize		需要显示的数值
	 * @param displayMode	显示的类型
	 * @param mode			显示的模式，默认为false，数值越高，颜色越偏向红色。为true反之
	 * @param animMode 		是否显示动画加载效果，默认为true
	 */
	public ConfigurationView(Context context, int maxSize, String displayMode, boolean mode, boolean animMode) {
		super(context);
		this.maxSize = maxSize;
		this.displayMode = displayMode;
		this.mode = mode;
		this.animMode = animMode;
		init();
	}

	// 绘制界面
	@Override
	protected void onDraw(Canvas canvas) {
		super.onDraw(canvas);
		canvas.drawRect(10, endHeight, 10+viewWidth, startHeight, paint);
		if(!display){
			if(!mode && indexSize >= 50){
				paint.setARGB(255, 200, 200, 60);
				if(!mode && indexSize >= 80){
					paint.setARGB(255, (indexSize<100)?(110+indexSize+45):255, (indexSize<100)?210-(indexSize+45):0, 20);
				}
			}else if(mode && indexSize <= 50){
				paint.setARGB(255, 200, 200, 60);
				if(mode && indexSize <= 30){
					paint.setARGB(255, 255-indexSize, indexSize, 20);
				}
			}
			canvas.drawRect(10, endHeight, 10+viewWidth, startHeight, paint);
			paint.setARGB(255, 99, 66, 0);
			canvas.drawText(""+indexSize, numWidth, endHeight-5, paint);
			paint.setARGB(255, 110, 210, 60);
		}
		canvas.drawText(displayMode, 0, startHeight+15, font_Paint);
	}
	
	// 初始化
	private void init(){
		// 数值初始化
		paint = new Paint();
		paint.setARGB(255, 110, 210, 20);
		font_Paint = new Paint();
		font_Paint.setARGB(255, 66, 66, 66);
		
		// 设置数值显示的偏移量，数值越小，偏移量越大
		numWidth = 9;
		if(maxSize < 10){
			numWidth = 15;
		}else if(maxSize < 100){
			numWidth = 12;
		}
		
		if(animMode){
			// 启动一个线程来实现柱状图缓慢增高
			thread.start();
		}else{
			display = false;
			indexSize = maxSize;
			endHeight = startHeight-(float) (maxSize*1.5);
			invalidate();
		}
	}

	private Handler handler = new Handler(){
		@Override
		public void handleMessage(Message msg) {
			super.handleMessage(msg);
			if(msg.what == 1 && indexSize < maxSize && endHeight >= 20){
				endHeight -= 1.5;
				indexSize += 1;
			}else{
				display = false;
			}
			invalidate();
		}
	};
	
	private Thread thread = new Thread(){
		@Override
		public void run(){
			while(!Thread.currentThread().isInterrupted() && display )
			{
				Message msg = new Message();
				msg.what = 1;
				handler.sendMessage(msg);
				try {
					Thread.sleep(15);
				} catch (InterruptedException e) {
					System.err.println("InterruptedException！线程关闭");
					this.interrupt();
				}
			}
		}
	};
	
	// 刷新View
	public void toInvalidate(){
		this.invalidate();
	}
}