背景介绍 在Android 开发中,我们经常遇到各种各样绚丽的控件,所以,依靠我们Android本身所带的控件是远远不够的,很多时候需要我们自己定义控件,在开发的过程中,我们公司遇到了一种需要自己写的一个自定义带进度的圆形进度条,看起来非常的绚丽,当然还有一些其他的,比如:水纹形的圆形进度条等效果都是非常nice的。如果哪位朋友有实现,希望分享出来,我也好学习学习。好了多的不说,接下来,我们就来看看来如何实现圆形进度条。
【Android|Android 高手进阶,自定义圆形进度条】原文地址:http://blog.csdn.net/xiaanming/article/details/10298163
一:先上效果图
文章图片
二:实例代码
1.自定义属性
ps:自定义属性呢,其实大家或许不是很明白,有些小伙伴们或许知道,我这样用,可以调用它的一个值,可以获取值,或者说赋予值,比如:你用Android 系统本身所带的控件,textview其他等,你知道他有height,width,textsize,textcolor等,这些属性,你能赋值,但是有去理解过怎样去获取值么,如果不了解,没关系,我这有一篇鸿洋写的比较详细,推荐给你:http://blog.csdn.net/lmj623565791/article/details/45022631,还在等什么,赶紧戳进去,带你装逼带你飞。
2.自定义控件 源码1:
package com.example.testdemo.view;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.view.View;
import com.example.testdemo.R;
/**
* 仿iphone带进度的进度条,线程安全的View,可直接在线程中更新进度
*
* @author zengtao 2015年5月12日下午7:43:32
*
*
*/
@SuppressLint("DrawAllocation")
public class RoundProgressBar extends View {
/**
* 画笔对象的引用
*/
private Paint paint;
/**
* 圆环的颜色
*/
private int roundColor;
/**
* 圆环进度的颜色
*/
private int roundProgressColor;
/**
* 中间进度百分比的字符串的颜色
*/
private int textColor;
/**
* 中间进度百分比的字符串的字体
*/
private float textSize;
/**
* 圆环的宽度
*/
private float roundWidth;
/**
* 最大进度
*/
private int max;
/**
* 当前进度
*/
private int progress;
/**
* 是否显示中间的进度
*/
private boolean textIsDisplayable;
/**
* 进度的风格,实心或者空心
*/
private int style;
public static final int STROKE = 0;
public static final int FILL = 1;
public RoundProgressBar(Context context) {
this(context, null);
} public RoundProgressBar(Context context, AttributeSet attrs) {
this(context, attrs, 0);
} public RoundProgressBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
paint = new Paint();
TypedArray mTypedArray = context.obtainStyledAttributes(attrs, R.styleable.RoundProgressBar);
// 获取自定义属性和默认值
roundColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundColor, Color.rgb(228, 232, 237));
roundProgressColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundProgressColor, Color.rgb(216, 6, 7));
textColor = mTypedArray.getColor(R.styleable.RoundProgressBar_textColor, Color.rgb(216, 6, 7));
textSize = mTypedArray.getDimension(R.styleable.RoundProgressBar_textSize, 18);
roundWidth = mTypedArray.getDimension(R.styleable.RoundProgressBar_roundWidth, 3);
max = mTypedArray.getInteger(R.styleable.RoundProgressBar_max, 100);
textIsDisplayable = mTypedArray.getBoolean(R.styleable.RoundProgressBar_textIsDisplayable, true);
style = mTypedArray.getInt(R.styleable.RoundProgressBar_style, 0);
mTypedArray.recycle();
} @Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
/**
* 1.画最外层的大圆环
*/
int centre = getWidth() / 2;
// 获取圆心的x坐标
int radius = (int) (centre - roundWidth / 2);
// 圆环的半径
paint.setColor(roundColor);
// 设置圆环的颜色
paint.setStyle(Paint.Style.STROKE);
// 设置空心
paint.setStrokeWidth(roundWidth);
// 设置圆环的宽度
paint.setAntiAlias(true);
// 消除锯齿
canvas.drawCircle(centre, centre, radius, paint);
// 画出圆环/**
* 2.画进度百分比
*/
paint.setStrokeWidth(0);
paint.setColor(textColor);
paint.setTextSize(textSize);
paint.setTypeface(Typeface.DEFAULT);
// 设置字体
// 中间的进度百分比,先转换成float在进行除法运算,不然都为0
int percent = (int) (((float) progress / (float) max) * 100);
float textWidth = paint.measureText(percent + "%");
// 测量字体宽度,我们需要根据字体的宽度设置在圆环中间if (textIsDisplayable && style == STROKE) {
canvas.drawText(percent + "%", centre - textWidth / 2, centre + textSize/2, paint);
//画出进度百分比
}/**
* 3.画圆弧 ,画圆环的进度
*/// 设置进度是实心还是空心
paint.setStrokeWidth(roundWidth);
// 设置圆环的宽度
paint.setColor(roundProgressColor);
// 设置进度的颜色
RectF oval = new RectF(centre - radius, centre - radius, centre + radius, centre + radius);
// 用于定义的圆弧的形状和大小的界限switch (style) {
case STROKE: {
paint.setStyle(Paint.Style.STROKE);
canvas.drawArc(oval, -90, 360 * progress / max, false, paint);
// 根据进度画圆弧
break;
}
case FILL: {
paint.setStyle(Paint.Style.FILL_AND_STROKE);
if (progress != 0)
canvas.drawArc(oval, -90, 360 * progress / max, true, paint);
// 根据进度画圆弧
break;
}
} } public synchronized int getMax() {
return max;
} /**
* 设置进度的最大值
*
* @param max
*/
public synchronized void setMax(int max) {
if (max < 0) {
throw new IllegalArgumentException("max not less than 0");
}
this.max = max;
} /**
* 获取进度.需要同步
*
* @return
*/
public synchronized int getProgress() {
return progress;
} /**
* 设置进度,此为线程安全控件,由于考虑多线的问题,需要同步 刷新界面调用postInvalidate()能在非UI线程刷新
*
* @param progress
*/
public synchronized void setProgress(int progress) {
if (progress < 0) {
throw new IllegalArgumentException("progress not less than 0");
}
if (progress > max) {
progress = max;
}
if (progress <= max) {
this.progress = progress;
postInvalidate();
} } public int getCricleColor() {
return roundColor;
} public void setCricleColor(int cricleColor) {
this.roundColor = cricleColor;
} public int getCricleProgressColor() {
return roundProgressColor;
} public void setCricleProgressColor(int cricleProgressColor) {
this.roundProgressColor = cricleProgressColor;
} public int getTextColor() {
return textColor;
} public void setTextColor(int textColor) {
this.textColor = textColor;
} public float getTextSize() {
return textSize;
} public void setTextSize(float textSize) {
this.textSize = textSize;
} public float getRoundWidth() {
return roundWidth;
} public void setRoundWidth(float roundWidth) {
this.roundWidth = roundWidth;
} public int getStyle() {
return style;
}
public void setStyle(int style) {
this.style = style;
}
}
源码2:
package com.example.testdemo.view;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.view.View;
import com.example.testdemo.R;
/**
* 仿iphone带进度的进度条,线程安全的View,可直接在线程中更新进度
*
* @author zengtao 2015年5月12日下午7:43:32
*
*
*/
@SuppressLint("DrawAllocation")
public class RoundProgressBar2 extends View {
/**
* 画笔对象的引用
*/
private Paint paint;
/**
* 圆环的颜色
*/
private int roundColor;
/**
* 圆环进度的颜色
*/
private int roundProgressColor;
/**
* 中间进度百分比的字符串的颜色
*/
private int textColor;
/**
* 中间进度百分比的字符串的字体
*/
private float textSize;
/**
* 圆环的宽度
*/
private float roundWidth;
/**
* 最大进度
*/
private int max;
/**
* 当前进度
*/
private int progress;
/**
* 是否显示中间的进度
*/
private boolean textIsDisplayable;
/**
* 进度的风格,实心或者空心
*/
private int style;
public static final int STROKE = 0;
public static final int FILL = 1;
public RoundProgressBar2(Context context) {
this(context, null);
} public RoundProgressBar2(Context context, AttributeSet attrs) {
this(context, attrs, 0);
} public RoundProgressBar2(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
paint = new Paint();
TypedArray mTypedArray = context.obtainStyledAttributes(attrs, R.styleable.RoundProgressBar);
// 获取自定义属性和默认值
roundColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundColor, Color.rgb(228, 232, 237));
roundProgressColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundProgressColor, Color.rgb(216, 6, 7));
textColor = mTypedArray.getColor(R.styleable.RoundProgressBar_textColor, Color.rgb(216, 6, 7));
textSize = mTypedArray.getDimension(R.styleable.RoundProgressBar_textSize, 18);
roundWidth = mTypedArray.getDimension(R.styleable.RoundProgressBar_roundWidth, 3);
max = mTypedArray.getInteger(R.styleable.RoundProgressBar_max, 100);
textIsDisplayable = mTypedArray.getBoolean(R.styleable.RoundProgressBar_textIsDisplayable, true);
style = mTypedArray.getInt(R.styleable.RoundProgressBar_style, 0);
mTypedArray.recycle();
} @Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
/**
* 画最外层的大圆环
*/
int centre = getWidth() / 2;
// 获取圆心的x坐标
int radius = (int) (centre - roundWidth / 2);
// 圆环的半径
paint.setColor(roundColor);
// 设置圆环的颜色
paint.setStyle(Paint.Style.STROKE);
// 设置空心
paint.setStrokeWidth(roundWidth);
// 设置圆环的宽度
paint.setAntiAlias(true);
// 消除锯齿
canvas.drawCircle(centre, centre, radius, paint);
// 画出圆环/**
* 画进度百分比
*/
paint.setStrokeWidth(0);
paint.setColor(textColor);
paint.setTextSize(textSize);
paint.setTypeface(Typeface.DEFAULT);
// 设置字体
// int percent = (int) (((float) progress / (float) max) * 100);
//
// 中间的进度百分比,先转换成float在进行除法运算,不然都为0float textWidth = paint.measureText("抢");
// 测量字体宽度,我们需要根据字体的宽度设置在圆环中间if (textIsDisplayable && style == STROKE) {
canvas.drawText("抢", centre - textWidth / 2, centre + textSize / 2 - 4, paint);
// 画出进度百分比
}/**
* 画圆弧 ,画圆环的进度
*/// 设置进度是实心还是空心
paint.setStrokeWidth(roundWidth);
// 设置圆环的宽度
paint.setColor(roundProgressColor);
// 设置进度的颜色
RectF oval = new RectF(centre - radius, centre - radius, centre + radius, centre + radius);
// 用于定义的圆弧的形状和大小的界限switch (style) {
case STROKE: {
paint.setStyle(Paint.Style.STROKE);
canvas.drawArc(oval, -90, 360 * progress / max, false, paint);
// 根据进度画圆弧
break;
}
case FILL: {
paint.setStyle(Paint.Style.FILL_AND_STROKE);
if (progress != 0)
canvas.drawArc(oval, -90, 360 * progress / max, true, paint);
// 根据进度画圆弧
break;
}
} } public synchronized int getMax() {
return max;
} /**
* 设置进度的最大值
*
* @param max
*/
public synchronized void setMax(int max) {
if (max < 0) {
throw new IllegalArgumentException("max not less than 0");
}
this.max = max;
} /**
* 获取进度.需要同步
*
* @return
*/
public synchronized int getProgress() {
return progress;
} /**
* 设置进度,此为线程安全控件,由于考虑多线的问题,需要同步 刷新界面调用postInvalidate()能在非UI线程刷新
*
* @param progress
*/
public synchronized void setProgress(int progress) {
if (progress < 0) {
throw new IllegalArgumentException("progress not less than 0");
}
if (progress > max) {
progress = max;
}
if (progress <= max) {
this.progress = progress;
postInvalidate();
} } public int getCricleColor() {
return roundColor;
} public void setCricleColor(int cricleColor) {
this.roundColor = cricleColor;
} public int getCricleProgressColor() {
return roundProgressColor;
} public void setCricleProgressColor(int cricleProgressColor) {
this.roundProgressColor = cricleProgressColor;
} public int getTextColor() {
return textColor;
} public void setTextColor(int textColor) {
this.textColor = textColor;
} public float getTextSize() {
return textSize;
} public void setTextSize(float textSize) {
this.textSize = textSize;
} public float getRoundWidth() {
return roundWidth;
} public void setRoundWidth(float roundWidth) {
this.roundWidth = roundWidth;
}}
ps:以上两份自定义源码,其实你仔细看,差别不是很大,就改变了一个地方,这个更改的地方,其实是在我们现在的项目中所遇到的,所以,发不这个圆形控件,我想你以后会用到的,值得收藏。
三.具体调用
package com.example.testdemo;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import com.example.testdemo.view.RoundProgressBar;
import com.example.testdemo.view.RoundProgressBar2;
/**
* 主界面
* @author zengtao 2015年6月10日 下午4:02:13
*
*/
public class MainActivity extends Activity {
private RoundProgressBar2 r3;
private RoundProgressBar r1, r2, r4, r5;
private int pro1 = 80;
// 想要显示的进度值:如项目中,从服务器返回的数据
private int progress = 0;
private boolean flag = false;
private MyThread thread1;
private MyThread2 thread2;
private Button start;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
setRoundAttribute();
// 可设置可不设置
} /**
* 开始方法
*/
private void start() {
// 线程1
thread1 = new MyThread();
thread1.start();
// 线程2
thread2 = new MyThread2();
thread2.start();
} /**
* 初始化控件
*/
private void initView() {
r1 = (RoundProgressBar) findViewById(R.id.prpgress1);
r2 = (RoundProgressBar) findViewById(R.id.prpgress2);
r3 = (RoundProgressBar2) findViewById(R.id.prpgress3);
r4 = (RoundProgressBar) findViewById(R.id.prpgress4);
r5 = (RoundProgressBar) findViewById(R.id.prpgress5);
start = (Button) findViewById(R.id.start);
start.setOnClickListener(listener);
} /**
* 设置圆的属性
*/
private void setRoundAttribute() {
r1.setRoundWidth(10);
r1.setTextColor(Color.parseColor("#00ff00"));
r1.setCricleColor(Color.parseColor("#ff0000"));
r2.setRoundWidth(20);
r2.setTextColor(Color.parseColor("#0000ff"));
r2.setCricleColor(Color.parseColor("#ff00ff"));
r4.setRoundWidth(20);
r4.setTextColor(Color.parseColor("#ff00ff"));
r4.setCricleColor(Color.parseColor("#ff0000"));
r4.setStyle(0);
r4.setRoundWidth(20);
r4.setTextColor(Color.parseColor("#000000"));
r4.setCricleColor(Color.parseColor("#ffff00"));
r4.setStyle(1);
} /**
* 点击事件
*/
OnClickListener listener = new OnClickListener() {@Override
public void onClick(View v) {
if (v == start) {
start();
}
}
};
/**
* 用于更新ui
*/
@SuppressLint("HandlerLeak")
private Handler mHandler = new Handler() {
public void handleMessage(android.os.Message msg) {
final int x = msg.what;
final int temp = (int) msg.obj;
if (x == 0 * 1) {
if (pro1 - temp > 0) {
r1.setProgress(temp);
r2.setProgress(temp);
r3.setProgress(temp);
r4.setProgress(temp);
r5.setProgress(temp);
} else {
r1.setProgress(pro1);
r2.setProgress(pro1);
r3.setProgress(pro1);
r4.setProgress(pro1);
r5.setProgress(pro1);
thread1.stopThread();
}
} else if (x == 0 * 2) {
if (pro1 - temp > 0) {
r1.setProgress(temp);
r2.setProgress(temp);
r3.setProgress(temp);
r4.setProgress(temp);
r5.setProgress(temp);
} else {
r1.setProgress(pro1);
r2.setProgress(pro1);
r3.setProgress(pro1);
r4.setProgress(pro1);
r5.setProgress(pro1);
thread2.stopThread();
}
}
};
};
/**
* 线程,控制进度动画
* @author zengtao 2015年6月10日 下午4:31:11
*
*/
class MyThread extends Thread {@Override
public void run() {
while (!flag) {
try {
progress += 1;
Message msg = new Message();
msg.what = 0 * 1;
msg.obj = progress;
Thread.sleep(100);
mHandler.sendMessage(msg);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}public void stopThread() {
flag = true;
}
} /**
* 线程,控制进度动画
* @author zengtao 2015年6月10日 下午4:31:11
*
*/
class MyThread2 extends Thread {@Override
public void run() {
while (!flag) {
try {
progress += 2;
Message msg = new Message();
msg.what = 0 * 2;
msg.obj = progress;
Thread.sleep(200);
mHandler.sendMessage(msg);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}public void stopThread() {
flag = true;
}
} @Override
protected void onDestroy() {
super.onDestroy();
if (thread1 != null) {
thread1.stopThread();
}
if (thread2 != null) {
thread2.stopThread();
}
}
}
四.总结 实现以上步骤,就实现了一个安全可靠的自定义控件的实现,看起来简简单单,不说分分钟,但是稍微花点时间这就是你的。
源码下载地址:http://download.csdn.net/detail/u011546655/8793521