Android带进度的圆形进度条

<?xml version="1.0" encoding="UTF-8"?> <resources>  <declare-styleable name="RoundProgressBar">   <attr name="roundColor" format="color"/>   <attr name="roundProgressColor" format="color"/>   <attr name="roundWidth" format="dimension"></attr>   <attr name="textColor" format="color" />   <attr name="textSize" format="dimension" />   <attr name="max" format="integer"></attr>   <attr name="textIsDisplayable" format="boolean"></attr>   <attr name="style">    <enum name="STROKE" value="0"></enum>    <enum name="FILL" value="1"></enum>   </attr>  </declare-styleable> </resources> 

roundColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundColor, Color.RED);   roundProgressColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundProgressColor, Color.GREEN);   textColor = mTypedArray.getColor(R.styleable.RoundProgressBar_textColor, Color.GREEN);   textSize = mTypedArray.getDimension(R.styleable.RoundProgressBar_textSize, 15);   roundWidth = mTypedArray.getDimension(R.styleable.RoundProgressBar_roundWidth, 5);   max = mTypedArray.getInteger(R.styleable.RoundProgressBar_max, 100);   textIsDisplayable = mTypedArray.getBoolean(R.styleable.RoundProgressBar_textIsDisplayable, true);   style = mTypedArray.getInt(R.styleable.RoundProgressBar_style, 0); 

package com.example.roundprogressbar;  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.util.Log; import android.view.View;  import com.example.circlepregress.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 xiaanming  *  */ 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.RED);   roundProgressColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundProgressColor, Color.GREEN);   textColor = mTypedArray.getColor(R.styleable.RoundProgressBar_textColor, Color.GREEN);   textSize = mTypedArray.getDimension(R.styleable.RoundProgressBar_textSize, 15);   roundWidth = mTypedArray.getDimension(R.styleable.RoundProgressBar_roundWidth, 5);   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      Log.e("log", centre + "");      /**    * 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 && style == STROKE){    canvas.drawText(percent + "%", centre - textWidth / 2, centre + textSize/2, 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, 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;   }   }     }      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;  }    } 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  xmlns:android_custom="http://schemas.android.com/apk/res/com.example.circlepregress"  xmlns:tools="http://schemas.android.com/tools"  android:layout_width="match_parent"  android:layout_height="match_parent" >    <com.example.roundprogressbar.RoundProgressBar   android:id="@+id/roundProgressBar2"   android:layout_width="80dip"   android:layout_height="80dip"   android:layout_alignLeft="@+id/roundProgressBar1"   android:layout_alignParentBottom="true"   android:layout_marginBottom="78dp"         android_custom:roundColor="#D1D1D1"   android_custom:roundProgressColor="@android:color/black"   android_custom:textColor="#9A32CD"   android_custom:textIsDisplayable="false"   android_custom:roundWidth="10dip"   android_custom:textSize="18sp"/> </RelativeLayout>