package com.circle.progress;import android.content.Context;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.RectF;import android.graphics.Typeface;import android.util.AttributeSet;import android.util.Log;import android.view.View;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;    /**     * 进度的风格，实心从下到上     */    public static final int FILL_UP = 2;    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);        init();    }    private void init() {        paint = new Paint();        roundColor = 0xfffdba14;        roundProgressColor = 0xfffc8b0d;        textColor = 0xff00ff00;        textSize = 15;        roundWidth = 5;        max = 100;        textIsDisplayable = true;        style = 0;    }    @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        if (style == FILL_UP) {            paint.setStyle(Paint.Style.FILL_AND_STROKE);        } else {            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        Log.e("log", centre + "");        /**         * 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, 0, 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, 0, 360 * progress / max, true, paint); // 根据进度画圆弧            }            break;        case FILL_UP:            paint.setStyle(Paint.Style.FILL_AND_STROKE);            if (progress != 0) {                int angle = 360 * progress / max;                if (angle / 2 < 90) {                    angle = Math.abs(90 - angle / 2);                } else {                    angle = 360 - Math.abs(90 - angle / 2);                }                canvas.drawArc(oval, angle, 360 * progress / max, false, paint);            }            break;        }        /**         * 画进度百分比         */        paint.setStrokeWidth(0);        paint.setColor(textColor);        paint.setTextSize(textSize);        paint.setTypeface(Typeface.DEFAULT_BOLD); // 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0        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 && percent != 0 ) {            canvas.drawText(percent + "%", centre - textWidth / 2, centre                    + textSize / 2, paint); // 画出进度百分比        }    }    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 getCircleColor() {        return roundColor;    }    /**     * 设置圆环的颜色     */    public void setCircleColor(int circleColor) {        this.roundColor = circleColor;    }    public int getCircleProgressColor() {        return roundProgressColor;    }    /**     * 设置圆环进度的颜色     */    public void setCircleProgressColor(int circleProgressColor) {        this.roundProgressColor = circleProgressColor;    }    public int getTextColor() {        return textColor;    }    /**     * 设置中间进度百分比的字符串的颜色     */    public void setTextColor(int textColor) {        this.textColor = textColor;    }    public float getTextSize() {        return textSize;    }    /**     * 设置中间进度百分比的字符串的字体大小     */    public void setTextSize(float textSize) {        this.textSize = textSize;    }    public float getRoundWidth() {        return roundWidth;    }    /**     * 设置圆环的宽度     */    public void setRoundWidth(float roundWidth) {        this.roundWidth = roundWidth;    }    /**     * 设置是否显示数字百分比     *      * @param flag     */    public void setTextIsDisplayable(boolean flag) {        textIsDisplayable = flag;    }        /**     * 设置进度风格     * 0空心，1实心，2实心从下到上     * @param style     */    public void setStyle(int style) {        this.style = style;    }}

package com.circle.progress;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.LinearLayout;public class CircleProgressTestActivity extends Activity {    private RoundProgressBar roundProgressBar;    private RoundProgressBar roundProgressBar2;    private RoundProgressBar roundProgressBar3;    private RoundProgressBar roundProgressBar4;    private RoundProgressBar roundProgressBar5;    private RoundProgressBar roundProgressBar6;    private RoundProgressBar roundProgressBar7;    private int progress = 0;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        LinearLayout parent = new LinearLayout(this);        parent.setOrientation(LinearLayout.VERTICAL);        parent.setBackgroundColor(0xffffffff);        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(-2, -2);        Button button = new Button(this);        button.setText("开始圆形进度");        parent.addView(button, lp);                LinearLayout roundLayout = new LinearLayout(this);        roundLayout.setOrientation(LinearLayout.HORIZONTAL);        lp = new LinearLayout.LayoutParams(-2, -2);        parent.addView(roundLayout, lp);        roundProgressBar = new RoundProgressBar(this);        roundProgressBar.setStyle(RoundProgressBar.FILL_UP);//设置进度风格 0空心，1实心，2实心从下到上        roundProgressBar.setTextColor(0xffffffff);//设置中间进度百分比的字符串的颜色        lp = new LinearLayout.LayoutParams(80, 80);        lp.setMargins(5, 5, 5, 5);        roundLayout.addView(roundProgressBar, lp);                roundProgressBar2 = new RoundProgressBar(this);        lp = new LinearLayout.LayoutParams(80, 80);        lp.setMargins(5, 5, 5, 5);        roundLayout.addView(roundProgressBar2, lp);                roundProgressBar3 = new RoundProgressBar(this);        roundProgressBar3.setCircleColor(0xffD1D1D1);//设置圆环的颜色        roundProgressBar3.setCircleProgressColor(0xff000000);//设置圆环进度的颜色        roundProgressBar3.setTextColor(0xff9A32CD);//设置中间进度百分比的字符串的颜色        roundProgressBar3.setRoundWidth(10);//设置圆环的宽度        roundProgressBar3.setTextSize(18);//设置中间进度百分比的字符串的字体大小        lp = new LinearLayout.LayoutParams(80, 80);        lp.setMargins(5, 5, 5, 5);        roundLayout.addView(roundProgressBar3, lp);                LinearLayout roundLayout2 = new LinearLayout(this);        roundLayout2.setOrientation(LinearLayout.HORIZONTAL);        lp = new LinearLayout.LayoutParams(-2, -2);        parent.addView(roundLayout2, lp);                roundProgressBar4 = new RoundProgressBar(this);        roundProgressBar4.setCircleColor(0xffC6E2FF);        roundProgressBar4.setCircleProgressColor(0xffCD3333);        roundProgressBar4.setRoundWidth(10);        roundProgressBar4.setTextIsDisplayable(false);//设置是否显示数字百分比        lp = new LinearLayout.LayoutParams(80, 80);        lp.setMargins(5, 5, 5, 5);        roundLayout2.addView(roundProgressBar4, lp);                roundProgressBar5 = new RoundProgressBar(this);        roundProgressBar5.setStyle(RoundProgressBar.FILL);        roundProgressBar5.setCircleProgressColor(0xffC2C2C2);        roundProgressBar5.setRoundWidth(1);        roundProgressBar5.setCircleColor(0xffff0000);        roundProgressBar5.setTextIsDisplayable(false);        lp = new LinearLayout.LayoutParams(80, 80);        lp.setMargins(5, 5, 5, 5);        roundLayout2.addView(roundProgressBar5, lp);                roundProgressBar6 = new RoundProgressBar(this);        roundProgressBar6.setStyle(RoundProgressBar.FILL);        roundProgressBar6.setCircleProgressColor(0xffC2C2C2);        roundProgressBar6.setRoundWidth(1);        roundProgressBar6.setCircleColor(0xffff0000);        lp = new LinearLayout.LayoutParams(80, 80);        lp.setMargins(5, 5, 5, 5);        roundLayout2.addView(roundProgressBar6, lp);                roundProgressBar7 = new RoundProgressBar(this);        lp = new LinearLayout.LayoutParams(50, 50);        lp.setMargins(5, 5, 5, 5);        roundLayout2.addView(roundProgressBar7, lp);                lp = new LinearLayout.LayoutParams(-1, -1);        setContentView(parent, lp);        button.setOnClickListener(new OnClickListener() {                        @Override            public void onClick(View v) {                new Thread(new Runnable() {                                        @Override                    public void run() {                        while(progress <= 100){                            progress += 3;                                                        System.out.println(progress);                            roundProgressBar.setProgress(progress);                            roundProgressBar2.setProgress(progress);                            roundProgressBar3.setProgress(progress);                            roundProgressBar4.setProgress(progress);                            roundProgressBar5.setProgress(progress);                            roundProgressBar6.setProgress(progress);                            roundProgressBar7.setProgress(progress);                                                        try {                                Thread.sleep(100);                            } catch (InterruptedException e) {                                e.printStackTrace();                            }                        }                                            }                }).start();            }        });    }}