android 모뎀 IOS 링 모양 진도표 아이폰 테이프 진도표 모뎀 안전한 View

**
 *  iphone       ，     View，           
 * @author xiaanming
 *
 */
public class RoundProgressBar extends View {
    /**
     *      
     */
    private final float roundWidth_inner;

    /**
     *        
     */
    private Paint paint;

    /**
     *      
     */
    private int roundColor;

    /**
     *        
     */
    private int roundProgressColor;

    /**
     *               
     */
    private int textColor;

    /**
     *               
     */
    private float textSize;

    /**
     *      
     */
    private float roundWidth;

    /**
     *     
     */
    private int max;

    /**
     *     
     */
    private int progress;
    /**
     *          
     */
    private boolean textIsDisplayable;

    /**
     *      ，      
     */
    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);

        //           
        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, 3);
          roundWidth_inner = mTypedArray.getDimension(R.styleable.RoundProgressBar_roundWidth_inner,1);
        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);

        /**
         *         
         */
        int centre = getWidth()/2; //     x  
        int radius = (int) (centre - roundWidth/2); //     
        int radius_innner = (int) (centre - roundWidth_inner/2); //     
        paint.setColor(roundColor); //       
        paint.setStyle(Paint.Style.STROKE); //    
        paint.setStrokeWidth((radius - radius_innner) / 2); //       
        paint.setAntiAlias(true);  //    
        canvas.drawCircle(centre, centre, radius_innner, paint); //    
//        canvas.drawCircle(centre, centre, radius_innner, paint); //    
        Log.e("log", centre + "");

        /**
         *       
         */
        paint.setStrokeWidth(0);
        paint.setColor(textColor);
        paint.setTextSize(textSize);
        paint.setTypeface(Typeface.SERIF); //    
        int percent = (int) (((float) progress / (float) max) * 100);  //        ，    float       ，    0
//        float textWidth = paint.measureText(percent + "%");   //      ，                  
        float textWidth = paint.measureText(max - progress + "s");   //      ，                  
        if (textIsDisplayable && max - progress != 0 && style == STROKE) {
            canvas.drawText(max - progress + "s", centre - textWidth / 2, centre + textSize / 2, paint); //       
        }


        /**
         *     ，      
         */

        //           
        paint.setStrokeWidth((radius - radius_innner) / 2); //       
        paint.setColor(roundProgressColor);  //       
        RectF oval = new RectF(centre - radius_innner, centre - radius_innner, centre
                + radius_innner, centre + radius_innner);  //                
            //float left, float top, float right, float bottom
        switch (style) {
            case STROKE:{
                paint.setStyle(Paint.Style.STROKE);
                canvas.drawArc(oval, 0, 360 * progress / max, false, paint);  //       
                break;
            }
            case FILL:{
                paint.setStyle(Paint.Style.FILL_AND_STROKE);
                if(progress !=0)
                    canvas.drawArc(oval, 0, 360 * progress / max, true, paint);  //       
                break;
            }
        }
    }


    public synchronized int getMax() {
        return max;
    }

    /**
     *         
     * @param max
     */
    public synchronized void setMax(int max) {
        if(max < 0){
            throw new IllegalArgumentException("max not less than 0");
        }
        this.max = max;
    }

    /**
     *     .    
     * @return
     */
    public synchronized int getProgress() {
        return progress;
    }

    /**
     *     ，        ，         ，    
     *       postInvalidate()   UI    
     * @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;
    }