life02

http://hao3100590.iteye.com/blog/1317151

    * 博客分類： Android開發

androidProgressBar播放器進度

最近由于需要，做了一個音樂播放控制view，在上面需要能

*控制播放

*顯示剩余時間

*顯示進度（整個view就是一個進度條）

*實現播放暫停，以及ProgressBar的第一二進度功能

開始想到用組合的方式實現，然后重寫ProgressBar的方式實現，但是發現很困難而且文字顯示也不行

最后只有自己動手寫一個新的控制條

主要的原理就是繪制視圖的時候控制onDraw，然后在上面畫圖片和文字

然后在進度變化的時候不斷重繪View就可以了

先上圖：

其主要的View部分：

Java代碼  收藏代碼

   1. package com.hao;
   2.
   3. import android.content.Context;
   4. import android.graphics.Bitmap;
   5. import android.graphics.BitmapFactory;
   6. import android.graphics.Canvas;
   7. import android.graphics.Color;
   8. import android.graphics.Paint;
   9. import android.graphics.PixelFormat;
  10. import android.graphics.Rect;
  11. import android.graphics.drawable.BitmapDrawable;
  12. import android.graphics.drawable.Drawable;
  13. import android.util.AttributeSet;
  14. import android.util.Log;
  15. import android.view.MotionEvent;
  16. import android.view.View;
  17. import android.view.View.MeasureSpec;
  18. import android.view.View.OnClickListener;
  19. import android.widget.ImageButton;
  20. import android.widget.ImageView;
  21. import android.widget.TextView;
  22.
  23. public class ProgressButton extends View{
  24.     private Bitmap begin , bm_gray, bm_yellow, bm_second, end_gray, end_yellow, line,begin_gray;
  25.     private Bitmap pausePressedImg;
  26.     private Bitmap playPressedImg;
  27.     private int bitmapWidth = 0 , bitmapHeight = 0, btWidth = 0, btHeight = 0;
  28.     private int progress = 0, secondProgress = 0;
  29.     private double perLen = 0, max = 0, maxSize = 0;
  30.     private OnProgressChanged mOnProgressChanged;
  31.     private boolean isPlaying = false;
  32.     private Paint mTextPaint;
  33.     private String time = "00:00";
  34.     private int color = Color.BLUE;
  35.
  36.     public ProgressButton(Context context) {
  37.         super(context);
  38.         // TODO Auto-generated constructor stub
  39.         init();
  40.     }
  41.
  42.     public ProgressButton(Context context, AttributeSet attrs, int defStyle){
  43.         super(context, attrs, defStyle);
  44.         init();
  45.     }
  46.
  47.     public ProgressButton(Context context, AttributeSet attrs){
  48.         super(context, attrs);
  49.         init();
  50.     }
  51.
  52.     private void init(){
  53.         begin = drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_left_yellow));
  54.         begin_gray = drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_left_gray));
  55.         bm_gray =  drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_gray));
  56.         bm_yellow =  drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_yellow));
  57.         bm_second =  drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_second_yellow));
  58.         end_gray =  drawableToBitmap(getResources().getDrawable( R.drawable.rectangle_right_gray));
  59.         end_yellow =  drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_right_yellow));
  60.         line = drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_line));
  61.         pausePressedImg = BitmapFactory.decodeResource(getResources(), R.drawable.pause_button_pressed);
  62.         playPressedImg = BitmapFactory.decodeResource(getResources(), R.drawable.play_button_pressed);
  63.         bitmapHeight = begin.getHeight();
  64.         bitmapWidth = begin.getWidth();
  65.         btWidth = pausePressedImg.getWidth();
  66.         btHeight = pausePressedImg.getHeight();
  67.         mTextPaint = new Paint();
  68.         mTextPaint.setAntiAlias(true);
  69.         mTextPaint.setTextSize(14);
  70.         mTextPaint.setColor(color);
  71.         setPadding(3, 3, 3, 3);
  72.     }
  73.
  74.     public static Bitmap drawableToBitmap(Drawable drawable) {
  75.         int width = drawable.getIntrinsicWidth();
  76.         int height = drawable.getIntrinsicHeight();
  77.         Bitmap bitmap = Bitmap.createBitmap(width, height, drawable
  78.                 .getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
  79.                 : Bitmap.Config.RGB_565);
  80.         Canvas canvas = new Canvas(bitmap);
  81.         drawable.setBounds(0, 0, width, height);
  82.         drawable.draw(canvas);
  83.         return bitmap;
  84.     }
  85.
  86.
  87.
  88.     @Override
  89.     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
  90.         // TODO Auto-generated method stub
  91.         Log.e("*******", "onMeasure");
  92.         setMeasuredDimension(measureWidth(widthMeasureSpec),
  93.                 measureHeight(heightMeasureSpec));
  94.         perLen = maxSize/max;
  95.     }
  96.
  97.     @Override
  98.     protected void onDraw(Canvas canvas) {
  99.         // TODO Auto-generated method stub
100.         Log.e("*******", "onDraw");
101.         int middle1 = (int) (progress*perLen), middle2 = (int) (secondProgress*perLen) ,end = (int) maxSize-4;
102.         if(progress == 0 && secondProgress == 0){
103.             //draw background
104.             canvas.drawBitmap(begin_gray, new Rect(0,0,bitmapWidth,bitmapHeight),
105.                                     new Rect(0, 0, bitmapWidth, bitmapHeight), null);
106.             canvas.drawBitmap(bm_gray, new Rect(0,0,end-middle1,bitmapHeight),
107.                     new Rect(bitmapWidth, 0, end, bitmapHeight), null);
108.             canvas.drawBitmap(end_gray, new Rect(0,0,4,bitmapHeight),
109.                     new Rect(end, 0, end+4, bitmapHeight), null);
110.             //draw button and line
111.             canvas.drawBitmap(playPressedImg, new Rect(0, 0, btWidth, btHeight),
112.                     new Rect(0, 0, btWidth, bitmapHeight), null);
113.             canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
114.                     new Rect(btWidth, 0, btWidth+2, bitmapHeight), null);
115.             //draw time and line
116.             if(time.length() == 5){
117.                 canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
118.                         new Rect(end - 50, 0, end-48, bitmapHeight), null);
119.                 canvas.drawText("-"+time, end-45, bitmapHeight/2+5, mTextPaint);
120.             }else{
121.                 canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
122.                         new Rect(end - 60, 0, end-58, bitmapHeight), null);
123.                 canvas.drawText("-"+time, end-55, bitmapHeight/2+5, mTextPaint);
124.             }
125.         }else{
126.             //begin
127.             canvas.drawBitmap(begin, new Rect(0,0,bitmapWidth,bitmapHeight),
128.                         new Rect(0, 0, bitmapWidth, bitmapHeight), null);
129.             canvas.drawBitmap(bm_yellow, new Rect(0,0,middle1-bitmapWidth,bitmapHeight),
130.                         new Rect(bitmapWidth, 0, middle1, bitmapHeight), null);
131.             //middle
132.             if(secondProgress != 0 && secondProgress > progress){
133.                 canvas.drawBitmap(bm_second, new Rect(0,0,bitmapWidth,bitmapHeight),
134.                         new Rect(middle1, 0, middle2, bitmapHeight), null);
135.                 canvas.drawBitmap(bm_gray, new Rect(0,0,bitmapWidth,bitmapHeight),
136.                         new Rect(middle2, 0, end, bitmapHeight), null);
137.             }else{
138.                 canvas.drawBitmap(bm_gray, new Rect(0,0,end-middle1,bitmapHeight),
139.                         new Rect(middle1, 0, end, bitmapHeight), null);
140.             }
141.             //end
142.             canvas.drawBitmap(end_gray, new Rect(0,0,4,bitmapHeight),
143.                     new Rect(end, 0, end+4, bitmapHeight), null);
144.             if(middle2 >= end || middle1 >= end){
145.                 canvas.drawBitmap(end_yellow, new Rect(0,0,4,bitmapHeight),
146.                         new Rect(end, 0, end+4, bitmapHeight), null);
147.             }
148.             //draw button
149.             if(!isPlaying) {
150.                 canvas.drawBitmap(playPressedImg, new Rect(0, 0, btWidth, btHeight),
151.                         new Rect(0, 0, btWidth, bitmapHeight), null);
152.             }else{
153.                 canvas.drawBitmap(pausePressedImg, new Rect(0, 0, btWidth, btHeight),
154.                         new Rect(0, 0, btWidth, bitmapHeight), null);
155.             }
156.             //draw line and time
157.             canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
158.                     new Rect(btWidth, 0, btWidth+2, bitmapHeight), null);
159.             if(time.length() == 5){
160.                 canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
161.                         new Rect(end - 50, 0, end-48, bitmapHeight), null);
162.                 canvas.drawText("-"+time, end-45, bitmapHeight/2+5, mTextPaint);
163.             }else{
164.                 canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
165.                         new Rect(end - 60, 0, end-58, bitmapHeight), null);
166.                 canvas.drawText("-"+time, end-55, bitmapHeight/2+5, mTextPaint);
167.             }
168.         }
169.         super.onDraw(canvas);
170.     }
171.
172.
173.     @Override
174.     public boolean onTouchEvent(MotionEvent event) {
175.         // TODO Auto-generated method stub
176.         //在這里因為要換按鈕，故而需要更新整個視圖
177.         if(event.getAction() == MotionEvent.ACTION_DOWN){
178.             onClickListener.onClick(this);
179.             invalidate();
180.         }
181.         return true;
182.     }
183.
184.     /**
185.      * 這個方法必須設置，當播放的時候
186.      * @param isPlaying
187.      */
188.     public void setStateChanged(boolean isPlaying){
189.         this.isPlaying = isPlaying;
190.     }
191.
192.     public void setTextColor(int color){
193.         this.color = color;
194.         invalidate();
195.     }
196.
197.
198.     /**
199.      * Determines the width of this view
200.      * @param measureSpec A measureSpec packed into an int
201.      * @return The width of the view, honoring constraints from measureSpec
202.      */
203.     private int measureWidth(int measureSpec) {
204.         int result = 0;
205.         int specMode = MeasureSpec.getMode(measureSpec);
206.         int specSize = MeasureSpec.getSize(measureSpec);
207.         if (specMode == MeasureSpec.EXACTLY) {
208.             // We were told how big to be
209.             result = specSize;
210.         } else {
211.             result = (int) ((int)max*perLen + getPaddingLeft() + getPaddingRight());
212.             if (specMode == MeasureSpec.AT_MOST) {
213.                 // Respect AT_MOST value if that was what is called for by measureSpec
214.                 result = Math.min(result, specSize);
215.             }
216.         }
217.         System.out.println("width:"+result);
218.         maxSize = result;
219.         return result;
220.     }
221.
222.     /**
223.      * Determines the height of this view
224.      * @param measureSpec A measureSpec packed into an int
225.      * @return The height of the view, honoring constraints from measureSpec
226.      */
227.     private int measureHeight(int measureSpec) {
228.         int result = 0;
229.         int specMode = MeasureSpec.getMode(measureSpec);
230.         int specSize = MeasureSpec.getSize(measureSpec);
231.
232.         if (specMode == MeasureSpec.EXACTLY) {
233.             // We were told how big to be
234.             result = specSize;
235.         } else {
236.             // Measure the text (beware: ascent is a negative number)
237.             result = (int) getPaddingTop() + getPaddingBottom() + bitmapHeight;
238.             if (specMode == MeasureSpec.AT_MOST) {
239.                 // Respect AT_MOST value if that was what is called for by measureSpec
240.                 result = Math.min(result, specSize);
241.             }
242.         }
243.         System.out.println("Height:"+result);
244.         return result;
245.     }
246.
247.     /**
248.      * set the time
249.      * @param currentTime 當前播放時間
250.      * @param totalTime 總播放時間
251.      */
252.     public void setTime(int currentTime, int totalTime){
253.         int time = totalTime - currentTime;
254.         if(time <= 1000){
255.             this.time="00:00";
256.             return;
257.         }
258.         time/=1000;
259.         int minute = time/60;
260.         int hour = minute/60;
261.         int second = time%60;
262.         minute %= 60;
263.         if(hour == 0){
264.             this.time = String.format("%02d:%02d", minute,second);
265.         }else{
266.             this.time = String.format("%02d:%02d:%02d", hour, minute,second);
267.         }
268.     }
269.
270.     /**
271.      *
272.      * @param viewWidth 組件的寬度
273.      */
274.     public void setMax(int max){
275.         this.max = max;
276.     }
277.
278.     public int getMax(){
279.         return (int)max;
280.     }
281.
282.     /**
283.      * 設置第一進度
284.      * @param progress
285.      */
286.     public void setProgress(int progress){
287.         if(progress>max){
288.             progress = (int) max;
289.         }
290.         else if(progress<0){
291.             progress = 0;
292.         }
293.         if(mOnProgressChanged!=null){
294.             mOnProgressChanged.onProgressUpdated();
295.         }
296.         this.progress = progress;
297.         invalidate();
298.     }
299.
300.     /**
301.      * 設置第二進度
302.      * @param secondProgress
303.      */
304.     public void setSecondProgress(int secondProgress){
305.         if(secondProgress>max){
306.             secondProgress = (int) max;
307.         }
308.         else if(secondProgress<0){
309.             secondProgress = 0;
310.         }
311.         if(mOnProgressChanged!=null){
312.             mOnProgressChanged.onSecondProgressUpdated();
313.         }
314.         this.secondProgress = secondProgress;
315.         invalidate();
316.     }
317.
318.     /**
319.      * 設置進度監聽器
320.      * @param mOnProgressChanged
321.      */
322.     public void setmOnProgressChanged(OnProgressChanged mOnProgressChanged) {
323.         this.mOnProgressChanged = mOnProgressChanged;
324.     }
325.
326.
327.     public interface OnProgressChanged{
328.         void onProgressUpdated();
329.         void onSecondProgressUpdated();
330.     }
331.
332.     @Override
333.     public void setOnClickListener(OnClickListener l) {
334.         // TODO Auto-generated method stub
335.         if(l != null) onClickListener = l;
336.         super.setOnClickListener(l);
337.     }
338.
339.     private View.OnClickListener onClickListener;
340.
341. }

package com.hao;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.MeasureSpec;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;

public class ProgressButton extends View{
    private Bitmap begin , bm_gray, bm_yellow, bm_second, end_gray, end_yellow, line,begin_gray;
    private Bitmap pausePressedImg;
    private Bitmap playPressedImg;
    private int bitmapWidth = 0 , bitmapHeight = 0, btWidth = 0, btHeight = 0;
    private int progress = 0, secondProgress = 0;
    private double perLen = 0, max = 0, maxSize = 0;
    private OnProgressChanged mOnProgressChanged;
    private boolean isPlaying = false;
    private Paint mTextPaint;
    private String time = "00:00";
    private int color = Color.BLUE;

    public ProgressButton(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
        init();
    }

    public ProgressButton(Context context, AttributeSet attrs, int defStyle){
        super(context, attrs, defStyle);
        init();
    }

    public ProgressButton(Context context, AttributeSet attrs){
        super(context, attrs);
        init();
    }

    private void init(){
        begin = drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_left_yellow));
        begin_gray = drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_left_gray));
        bm_gray =  drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_gray));
        bm_yellow =  drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_yellow));
        bm_second =  drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_second_yellow));
        end_gray =  drawableToBitmap(getResources().getDrawable( R.drawable.rectangle_right_gray));
        end_yellow =  drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_right_yellow));
        line = drawableToBitmap(getResources().getDrawable(R.drawable.rectangle_line));
        pausePressedImg = BitmapFactory.decodeResource(getResources(), R.drawable.pause_button_pressed);
        playPressedImg = BitmapFactory.decodeResource(getResources(), R.drawable.play_button_pressed);
        bitmapHeight = begin.getHeight();
        bitmapWidth = begin.getWidth();
        btWidth = pausePressedImg.getWidth();
        btHeight = pausePressedImg.getHeight();
        mTextPaint = new Paint();
        mTextPaint.setAntiAlias(true);
        mTextPaint.setTextSize(14);
        mTextPaint.setColor(color);
        setPadding(3, 3, 3, 3);
    }

    public static Bitmap drawableToBitmap(Drawable drawable) {
        int width = drawable.getIntrinsicWidth();
        int height = drawable.getIntrinsicHeight();
        Bitmap bitmap = Bitmap.createBitmap(width, height, drawable
                .getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
                : Bitmap.Config.RGB_565);
        Canvas canvas = new Canvas(bitmap);
        drawable.setBounds(0, 0, width, height);
        drawable.draw(canvas);
        return bitmap;
    }



    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        // TODO Auto-generated method stub
        Log.e("*******", "onMeasure");
        setMeasuredDimension(measureWidth(widthMeasureSpec),
                measureHeight(heightMeasureSpec));
        perLen = maxSize/max;
    }

    @Override
    protected void onDraw(Canvas canvas) {
        // TODO Auto-generated method stub
        Log.e("*******", "onDraw");
        int middle1 = (int) (progress*perLen), middle2 = (int) (secondProgress*perLen) ,end = (int) maxSize-4;
        if(progress == 0 && secondProgress == 0){
            //draw background
            canvas.drawBitmap(begin_gray, new Rect(0,0,bitmapWidth,bitmapHeight),
                                    new Rect(0, 0, bitmapWidth, bitmapHeight), null);
            canvas.drawBitmap(bm_gray, new Rect(0,0,end-middle1,bitmapHeight),
                    new Rect(bitmapWidth, 0, end, bitmapHeight), null);
            canvas.drawBitmap(end_gray, new Rect(0,0,4,bitmapHeight),
                    new Rect(end, 0, end+4, bitmapHeight), null);
            //draw button and line
            canvas.drawBitmap(playPressedImg, new Rect(0, 0, btWidth, btHeight),
                    new Rect(0, 0, btWidth, bitmapHeight), null);
            canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
                    new Rect(btWidth, 0, btWidth+2, bitmapHeight), null);
            //draw time and line
            if(time.length() == 5){
                canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
                        new Rect(end - 50, 0, end-48, bitmapHeight), null);
                canvas.drawText("-"+time, end-45, bitmapHeight/2+5, mTextPaint);
            }else{
                canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
                        new Rect(end - 60, 0, end-58, bitmapHeight), null);
                canvas.drawText("-"+time, end-55, bitmapHeight/2+5, mTextPaint);
            }
        }else{
            //begin
            canvas.drawBitmap(begin, new Rect(0,0,bitmapWidth,bitmapHeight),
                        new Rect(0, 0, bitmapWidth, bitmapHeight), null);
            canvas.drawBitmap(bm_yellow, new Rect(0,0,middle1-bitmapWidth,bitmapHeight),
                        new Rect(bitmapWidth, 0, middle1, bitmapHeight), null);
            //middle
            if(secondProgress != 0 && secondProgress > progress){
                canvas.drawBitmap(bm_second, new Rect(0,0,bitmapWidth,bitmapHeight),
                        new Rect(middle1, 0, middle2, bitmapHeight), null);
                canvas.drawBitmap(bm_gray, new Rect(0,0,bitmapWidth,bitmapHeight),
                        new Rect(middle2, 0, end, bitmapHeight), null);
            }else{
                canvas.drawBitmap(bm_gray, new Rect(0,0,end-middle1,bitmapHeight),
                        new Rect(middle1, 0, end, bitmapHeight), null);
            }
            //end
            canvas.drawBitmap(end_gray, new Rect(0,0,4,bitmapHeight),
                    new Rect(end, 0, end+4, bitmapHeight), null);
            if(middle2 >= end || middle1 >= end){
                canvas.drawBitmap(end_yellow, new Rect(0,0,4,bitmapHeight),
                        new Rect(end, 0, end+4, bitmapHeight), null);
            }
            //draw button
            if(!isPlaying) {
                canvas.drawBitmap(playPressedImg, new Rect(0, 0, btWidth, btHeight),
                        new Rect(0, 0, btWidth, bitmapHeight), null);
            }else{
                canvas.drawBitmap(pausePressedImg, new Rect(0, 0, btWidth, btHeight),
                        new Rect(0, 0, btWidth, bitmapHeight), null);
            }
            //draw line and time
            canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
                    new Rect(btWidth, 0, btWidth+2, bitmapHeight), null);
            if(time.length() == 5){
                canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
                        new Rect(end - 50, 0, end-48, bitmapHeight), null);
                canvas.drawText("-"+time, end-45, bitmapHeight/2+5, mTextPaint);
            }else{
                canvas.drawBitmap(line, new Rect(0, 0, 2, bitmapHeight),
                        new Rect(end - 60, 0, end-58, bitmapHeight), null);
                canvas.drawText("-"+time, end-55, bitmapHeight/2+5, mTextPaint);
            }
        }
        super.onDraw(canvas);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        // TODO Auto-generated method stub
        //在這里因為要換按鈕，故而需要更新整個視圖
        if(event.getAction() == MotionEvent.ACTION_DOWN){
            onClickListener.onClick(this);
            invalidate();
        }
        return true;
    }

    /**
     * 這個方法必須設置，當播放的時候
     * @param isPlaying
     */
    public void setStateChanged(boolean isPlaying){
        this.isPlaying = isPlaying;
    }

    public void setTextColor(int color){
        this.color = color;
        invalidate();
    }


    /**
     * Determines the width of this view
     * @param measureSpec A measureSpec packed into an int
     * @return The width of the view, honoring constraints from measureSpec
     */
    private int measureWidth(int measureSpec) {
        int result = 0;
        int specMode = MeasureSpec.getMode(measureSpec);
        int specSize = MeasureSpec.getSize(measureSpec);
        if (specMode == MeasureSpec.EXACTLY) {
            // We were told how big to be
            result = specSize;
        } else {
            result = (int) ((int)max*perLen + getPaddingLeft() + getPaddingRight());
            if (specMode == MeasureSpec.AT_MOST) {
                // Respect AT_MOST value if that was what is called for by measureSpec
                result = Math.min(result, specSize);
            }
        }
        System.out.println("width:"+result);
        maxSize = result;
        return result;
    }

    /**
     * Determines the height of this view
     * @param measureSpec A measureSpec packed into an int
     * @return The height of the view, honoring constraints from measureSpec
     */
    private int measureHeight(int measureSpec) {
        int result = 0;
        int specMode = MeasureSpec.getMode(measureSpec);
        int specSize = MeasureSpec.getSize(measureSpec);

        if (specMode == MeasureSpec.EXACTLY) {
            // We were told how big to be
            result = specSize;
        } else {
            // Measure the text (beware: ascent is a negative number)
            result = (int) getPaddingTop() + getPaddingBottom() + bitmapHeight;
            if (specMode == MeasureSpec.AT_MOST) {
                // Respect AT_MOST value if that was what is called for by measureSpec
                result = Math.min(result, specSize);
            }
        }
        System.out.println("Height:"+result);
        return result;
    }

    /**
     * set the time
     * @param currentTime 當前播放時間
     * @param totalTime 總播放時間
     */
    public void setTime(int currentTime, int totalTime){
        int time = totalTime - currentTime;
        if(time <= 1000){
            this.time="00:00";
            return;
        }
        time/=1000;
        int minute = time/60;
        int hour = minute/60;
        int second = time%60;
        minute %= 60;
        if(hour == 0){
            this.time = String.format("%02d:%02d", minute,second);
        }else{
            this.time = String.format("%02d:%02d:%02d", hour, minute,second);
        }
    }

    /**
     *
     * @param viewWidth 組件的寬度
     */
    public void setMax(int max){
        this.max = max;
    }

    public int getMax(){
        return (int)max;
    }

    /**
     * 設置第一進度
     * @param progress
     */
    public void setProgress(int progress){
        if(progress>max){
            progress = (int) max;
        }
        else if(progress<0){
            progress = 0;
        }
        if(mOnProgressChanged!=null){
            mOnProgressChanged.onProgressUpdated();
        }
        this.progress = progress;
        invalidate();
    }

    /**
     * 設置第二進度
     * @param secondProgress
     */
    public void setSecondProgress(int secondProgress){
        if(secondProgress>max){
            secondProgress = (int) max;
        }
        else if(secondProgress<0){
            secondProgress = 0;
        }
        if(mOnProgressChanged!=null){
            mOnProgressChanged.onSecondProgressUpdated();
        }
        this.secondProgress = secondProgress;
        invalidate();
    }

    /**
     * 設置進度監聽器
     * @param mOnProgressChanged
     */
    public void setmOnProgressChanged(OnProgressChanged mOnProgressChanged) {
        this.mOnProgressChanged = mOnProgressChanged;
    }

    public interface OnProgressChanged{
        void onProgressUpdated();
        void onSecondProgressUpdated();
    }

    @Override
    public void setOnClickListener(OnClickListener l) {
        // TODO Auto-generated method stub
        if(l != null) onClickListener = l;
        super.setOnClickListener(l);
    }

    private View.OnClickListener onClickListener;

}

控制非常簡單，在這里設置了第一和二進度：

Java代碼  收藏代碼

   1. package com.hao;
   2.
   3. import java.util.Timer;
   4. import java.util.TimerTask;
   5.
   6. import com.hao.ProgressView.OnProgressChanged;
   7.
   8. import android.app.Activity;
   9. import android.graphics.drawable.Drawable;
  10. import android.os.Bundle;
  11. import android.os.Handler;
  12. import android.os.Message;
  13. import android.view.Gravity;
  14. import android.view.View;
  15. import android.view.View.OnClickListener;
  16. import android.view.ViewGroup.LayoutParams;
  17. import android.widget.ImageButton;
  18. import android.widget.LinearLayout;
  19. import android.widget.SeekBar;
  20. import android.widget.SeekBar.OnSeekBarChangeListener;
  21.
  22. public class SeekBarTestActivity extends Activity {
  23.     ProgressButton bp;
  24.     int time = 60000 , currentTime = 0;
  25.     boolean flag = true;
  26.     /** Called when the activity is first created. */
  27.     @Override
  28.     public void onCreate(Bundle savedInstanceState) {
  29.         super.onCreate(savedInstanceState);
  30.         setContentView(R.layout.my_progress_bar);
  31.         bp = (ProgressButton) findViewById(R.id.pbt);
  32.         bp.setOnClickListener(new OnClickListener() {
  33.
  34.             @Override
  35.             public void onClick(View v) {
  36.                 // TODO Auto-generated method stub
  37.                 System.out.println("main onck");
  38.                 bp.setStateChanged(flag);
  39.                 flag = !flag;
  40.             }
  41.         });
  42.         bp.setMax(60000);
  43.         Timer timer = new Timer();
  44.         timer.schedule(new TimerTask() {
  45.
  46.             @Override
  47.             public void run() {
  48.                 // TODO Auto-generated method stub
  49.                 handler.sendEmptyMessage(0);
  50.             }
  51.         }, 0, 2000);
  52.
  53.
  54.     }
  55.
  56.     Handler handler = new Handler(){
  57.
  58.         @Override
  59.         public void handleMessage(Message msg) {
  60.             // TODO Auto-generated method stub
  61.             currentTime +=1000;
  62.             bp.setProgress(currentTime);
  63.             bp.setSecondProgress(currentTime+1000);
  64.             bp.setTime(currentTime, time);
  65.         }
  66.
  67.     };
  68. }

package com.hao;

import java.util.Timer;
import java.util.TimerTask;

import com.hao.ProgressView.OnProgressChanged;

import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;

public class SeekBarTestActivity extends Activity {
    ProgressButton bp;
    int time = 60000 , currentTime = 0;
    boolean flag = true;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.my_progress_bar);
        bp = (ProgressButton) findViewById(R.id.pbt);
        bp.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                System.out.println("main onck");
                bp.setStateChanged(flag);
                flag = !flag;
            }
        });
        bp.setMax(60000);
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {

            @Override
            public void run() {
                // TODO Auto-generated method stub
                handler.sendEmptyMessage(0);
            }
        }, 0, 2000);


    }

    Handler handler = new Handler(){

        @Override
        public void handleMessage(Message msg) {
            // TODO Auto-generated method stub
            currentTime +=1000;
            bp.setProgress(currentTime);
            bp.setSecondProgress(currentTime+1000);
            bp.setTime(currentTime, time);
        }

    };
}

布局文件：

Java代碼  收藏代碼

   1. <?xml version="1.0" encoding="utf-8"?>
   2. <LinearLayout
   3.     xmlns:android="http://schemas.android.com/apk/res/android"
   4.     android:layout_height="fill_parent"
   5.     android:layout_width="fill_parent"
   6.     android:orientation="vertical">
   7.     <TextView android:layout_width="fill_parent"
   8.             android:layout_height="wrap_content"
   9.             android:text="音樂播放"/>
  10.     <LinearLayout
  11.         android:layout_width="fill_parent"
  12.         android:layout_height="wrap_content"
  13.         android:paddingTop="5dip"
  14.         android:gravity="center_horizontal">
  15.         <com.hao.ProgressButton
  16.             android:id="@+id/pb1"
  17.             android:layout_width="300dp"
  18.             android:layout_height="45dp"
  19.             android:background="@drawable/button_left_gray_background"/>
  20.     </LinearLayout>
  21. </LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="fill_parent"
    android:layout_width="fill_parent"
    android:orientation="vertical">
       <TextView android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="音樂播放"/>
       <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingTop="5dip"
        android:gravity="center_horizontal">
        <com.hao.ProgressButton
            android:id="@+id/pb1"
            android:layout_width="300dp"
            android:layout_height="45dp"
            android:background="@drawable/button_left_gray_background"/>
    </LinearLayout>
</LinearLayout>

posted on 2012-03-31 16:38 life02 閱讀(499) 評論(0) 編輯收藏引用所屬分類: android ndk開發

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