因为在项目中需要用到绘制饼状图，所以对github下的android-charts库进行了精简和修改，貌似该库本身有些bug，例如文字绘制有时候会错位，我改了一些地方，有兴趣的可以将下面所有代码复制进自己项目中，使用方法如下：

mData[0] = new ArrayList();
for(int i=0; i<5; i++) {
mData[0].add(new Titleva lueColorEntity(mTitle[i],
needTime[i],
this.getResources().getColor(mColorsId[i])));
}

mPieChart.setData(mData[2]);

源码：

/*
* BaseChart.java
* Android-Charts
*
* Created by limc on 2013.
*
* Copyright 2011 limc.cn All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package com.nekocode.xuedao.piechart;

import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.View;

public class BaseChart extends View {

/*
* (non-Javadoc)
*
* @param context
*
* @see android.view.View#BaseChart(Context)
*/
public BaseChart(Context context) {
super(context);
}

/*
* (non-Javadoc)
*
* @param context
*
* @param attrs
*
* @see android.view.View#BaseChart(Context, AttributeSet)
*/
public BaseChart(Context context, AttributeSet attrs) {
super(context, attrs);
}

/*
* (non-Javadoc)
*
* @param context
*
* @param attrs
*
* @param defStyle
*
* @see android.view.View#BaseChart(Context, AttributeSet, int)
*/
public BaseChart(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}

/*
* (non-Javadoc)
*
* @param widthMeasureSpec
*
* @param heightMeasureSpec
*
* @see android.view.View#onMeasure(int, int)
*/
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

super.onMeasure(widthMeasureSpec, heightMeasureSpec);
setMeasuredDimension(measureWidth(widthMeasureSpec),
measureHeight(heightMeasureSpec));
}

/*
* (non-Javadoc)
*
* @param gainFocus
*
* @param direction
*
* @param previouslyFocusedRect
*
* @see android.view.View#onFocusChanged(boolean, int,
* android.graphics.Rect)
*/
@Override
protected void onFocusChanged(boolean gainFocus, int direction,
Rect previouslyFocusedRect) {
super.onFocusChanged(gainFocus, direction, previouslyFocusedRect);
}

private int measureWidth(int measureSpec) {
int result = 0;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);

if (specMode == MeasureSpec.EXACTLY) {
result = specSize;
} else if (specMode == MeasureSpec.AT_MOST) {
result = Math.min(result, specSize);
}
return result;
}

private int measureHeight(int measureSpec) {
int result = 0;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);

if (specMode == MeasureSpec.EXACTLY) {
result = specSize;
} else if (specMode == MeasureSpec.AT_MOST) {
result = Math.min(result, specSize);
}
return result;
}
}

---------------------------------分割线---------------------------------