自定义seekbar和垂直seekbar.docx

从网上下载的demo，自己修改了一下。效果图：main.xml: 图片：progress_buffering.png：progress_playing.png：thumb_f.png：thumb_normal.png：voice_progress_buffering.png：seekbar_style.xml：进度的style !- -!- - !- - !- - seekbar_thumb.xml：拖拽的那个圆点的style 自定义垂直的seekbar：从网上找的public class VerticalSeekBar extends SeekBar private boolean mIsDragging; private float mTouchDownY; private int mScaledTouchSlop; private boolean isInScrollingContainer = false; public boolean isInScrollingContainer() return isInScrollingContainer; public void setInScrollingContainer(boolean isInScrollingContainer) this.isInScrollingContainer = isInScrollingContainer; /* * On touch, this offset plus the scaled value from the position of the * touch will form the progress value. Usually 0. */ float mTouchProgressOffset; public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) super(context, attrs, defStyle); mScaledTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop(); public VerticalSeekBar(Context context, AttributeSet attrs) super(context, attrs); public VerticalSeekBar(Context context) super(context); Override protected void onSizeChanged(int w, int h, int oldw, int oldh) super.onSizeChanged(h, w, oldh, oldw); Override protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) super.onMeasure(heightMeasureSpec, widthMeasureSpec); setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth(); Override protected synchronized void onDraw(Canvas canvas) canvas.rotate(-90); canvas.translate(-getHeight(), 0); super.onDraw(canvas); Override public boolean onTouchEvent(MotionEvent event) if (!isEnabled() return false; switch (event.getAction() case MotionEvent.ACTION_DOWN: if (isInScrollingContainer() mTouchDownY = event.getY(); else setPressed(true); invalidate(); onStartTrackingTouch(); trackTouchEvent(event); attemptClaimDrag(); onSizeChanged(getWidth(), getHeight(), 0, 0); break; case MotionEvent.ACTION_MOVE: if (mIsDragging) trackTouchEvent(event); else final float y = event.getY(); if (Math.abs(y - mTouchDownY) mScaledTouchSlop) setPressed(true); invalidate(); onStartTrackingTouch(); trackTouchEvent(event); attemptClaimDrag(); onSizeChanged(getWidth(), getHeight(), 0, 0); break; case MotionEvent.ACTION_UP: if (mIsDragging) trackTouchEvent(event); onStopTrackingTouch(); setPressed(false); else / Touch up when we never crossed the touch slop threshold / should / be interpreted as a tap-seek to that location. onStartTrackingTouch(); trackTouchEvent(event); onStopTrackingTouch(); onSizeChanged(getWidth(), getHeight(), 0, 0); / ProgressBar doesnt know to repaint the thumb drawable / in its inactive state when the touch stops (because the / value has not apparently changed) invalidate(); break; return true; private void trackTouchEvent(MotionEvent event) final int height = getHeight(); final int top = getPaddingTop(); final int bottom = getPaddingBottom(); final int available = height - top - bottom; int y = (int) event.getY(); float scale; float progress = 0; / 涓嬮潰鏄渶灏忓? if (y height - bottom) scale = 0.0f; else if (y top) scale = 1.0f; else scale = (float) (available - y + top) / (float) available; progress = mTouchProgressOffset; final int max = getMax(); progress += scale * max; setProgress(int) progress); /* * This is called when the user has started touching this widget. */ void onStartTrackingTouch() mIsDragging = true; /* * This is called when the user either releases his touch or the touch is * canceled. */ void onStopTrackingTouch() mIsDragging = false; private void attemptClaimDrag() ViewParent p = getParent(); if (p !