2014/10/16 上午 08:11:04

android Programming Glossary: canvas.save

http://stackoverflow.com/questions/10630373/android-image-view-pinch-zooming

1 getHeight 1 backgroundPaint if this.getDrawable null canvas.save canvas.translate mPosX mPosY Matrix matrix new Matrix matrix.postScale..

Vertical (rotated) label in Android

http://stackoverflow.com/questions/1258275/vertical-rotated-label-in-android

textPaint.drawableState getDrawableState canvas.save if topDown canvas.translate getWidth 0 canvas.rotate 90 else..

How to maintain multi layers of ImageViews and keep their aspect ratio based on the largest one?

http://stackoverflow.com/questions/16729169/how-to-maintain-multi-layers-of-imageviews-and-keep-their-aspect-ratio-based-on

Canvas canvas Drawable drawable Matrix matrix int alpha canvas.save Canvas.MATRIX_SAVE_FLAG canvas.concat matrix drawable.setAlpha..

Android listview row delete animation

http://stackoverflow.com/questions/17857775/android-listview-row-delete-animation

0 0 getWidth mOpenAreaHeight canvas.save canvas.translate 0 mOpenAreaTop mShadowedBackground.draw canvas..

Rotate MapView in Android

http://stackoverflow.com/questions/1830391/rotate-mapview-in-android

should rotate protected void dispatchDraw Canvas canvas canvas.save if compass final float w this.getWidth final float h this.getHeight..

Rotating a view in android

http://stackoverflow.com/questions/1930963/rotating-a-view-in-android

clipping it. @Override protected void onDraw Canvas canvas canvas.save canvas.rotate 45 appropriate x pivot value appropriate y pivot..

How can you display upside down text with a textview in Android?

http://stackoverflow.com/questions/2558257/how-can-you-display-upside-down-text-with-a-textview-in-android

the canvas applies to draws so it can be restored later. canvas.save now we change the matrix We need to rotate around the center..

Rotate View Hierarchy 90 degrees

http://stackoverflow.com/questions/3444764/rotate-view-hierarchy-90-degrees

2 mForward canvas.getMatrix mForward.invert mReverse canvas.save canvas.setMatrix mForward This is the matrix we need to use..

Android: Moving background image while navigating through Views

http://stackoverflow.com/questions/4775650/android-moving-background-image-while-navigating-through-views

Draw background image at its current locations canvas.save canvas.translate X 0 background.draw canvas canvas.restore ..

How can I use the animation framework inside the canvas?

http://stackoverflow.com/questions/4938822/how-can-i-use-the-animation-framework-inside-the-canvas

Increase rotating angle. if angle 360 angle 0 Draw ball canvas.save Save the position of the canvas. canvas.rotate angle X ballW.. null Draw the ball with applied matrix. Rotate method two canvas.save Save the position of the canvas matrix. canvas.rotate angle..

Pinch zoom for custom view

http://stackoverflow.com/questions/5216658/pinch-zoom-for-custom-view

public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.scale mScaleFactor mScaleFactor ... Your onDraw code..

Image in Canvas with touch events

http://stackoverflow.com/questions/5743328/image-in-canvas-with-touch-events

public void onDraw Canvas canvas super.onDraw canvas canvas.save Log.d DEBUG X mPosX Y mPosY canvas.translate mPosX mPosY canvas.scale..

Android: How to rotate a moving animated sprite based on the coordinates of its destination

http://stackoverflow.com/questions/6003823/android-how-to-rotate-a-moving-animated-sprite-based-on-the-coordinates-of-its

null draw the ball with the applied matrix method two canvas.save save the position of the canvas canvas.rotate angle X ballW..

Android Gauge Animation Question

http://stackoverflow.com/questions/6156674/android-gauge-animation-question

the Gauge first to the canvas then saving the canvas canvas.save then clipping a path on the white image then restoring the canvas...

Extending RelativeLayout, and overriding dispatchDraw() to create a zoomable ViewGroup

http://stackoverflow.com/questions/6378904/extending-relativelayout-and-overriding-dispatchdraw-to-create-a-zoomable-vie

overridden protected void dispatchDraw Canvas canvas canvas.save Canvas.MATRIX_SAVE_FLAG canvas.scale mScaleFactor mScaleFactor..

Pinch Zoom in android for an imageview?

http://stackoverflow.com/questions/6758847/pinch-zoom-in-android-for-an-imageview

public void onDraw Canvas canvas super.onDraw canvas canvas.save Log.d DEBUG X mPosX Y mPosY canvas.translate mPosX mPosY canvas.scale..

Get Canvas coordinates after scaling up/down or dragging in android

http://stackoverflow.com/questions/7524843/get-canvas-coordinates-after-scaling-up-down-or-dragging-in-android

public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.translate mPosX mPosY canvas.scale mScaleFactor mScaleFactor..

How to find absolute position of click while zoomed in

http://stackoverflow.com/questions/8180442/how-to-find-absolute-position-of-click-while-zoomed-in

public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.translate mCenterScaleX mCenterScaleY canvas.scale mScaleFactor..

Is it possible to set an animated gif file as live wallpaper in android?

http://stackoverflow.com/questions/9158310/is-it-possible-to-set-an-animated-gif-file-as-live-wallpaper-in-android

int mDiff mNyanDuration void nyanNyan Canvas canvas canvas.save canvas.scale mScaleX mScaleY mNyan.setTime mWhen mNyan.draw..

Android Image View Pinch Zooming

http://stackoverflow.com/questions/10630373/android-image-view-pinch-zooming

public void onDraw Canvas canvas canvas.drawRect 0 0 getWidth 1 getHeight 1 backgroundPaint if this.getDrawable null canvas.save canvas.translate mPosX mPosY Matrix matrix new Matrix matrix.postScale mScaleFactor mScaleFactor pivotPointX pivotPointY..

Vertical (rotated) label in Android

http://stackoverflow.com/questions/1258275/vertical-rotated-label-in-android

canvas TextPaint textPaint getPaint textPaint.setColor getCurrentTextColor textPaint.drawableState getDrawableState canvas.save if topDown canvas.translate getWidth 0 canvas.rotate 90 else canvas.translate 0 getHeight canvas.rotate 90 canvas.translate..

How to maintain multi layers of ImageViews and keep their aspect ratio based on the largest one?

http://stackoverflow.com/questions/16729169/how-to-maintain-multi-layers-of-imageviews-and-keep-their-aspect-ratio-based-on

if any pending animations invalidate private void draw Canvas canvas Drawable drawable Matrix matrix int alpha canvas.save Canvas.MATRIX_SAVE_FLAG canvas.concat matrix drawable.setAlpha alpha drawable.draw canvas canvas.restore public Layer addLayer..

Android listview row delete animation

http://stackoverflow.com/questions/17857775/android-listview-row-delete-animation

void onDraw Canvas canvas if mShowing if mUpdateBounds mShadowedBackground.setBounds 0 0 getWidth mOpenAreaHeight canvas.save canvas.translate 0 mOpenAreaTop mShadowedBackground.draw canvas canvas.restore Layout files LinearLayout xmlns android..

Rotate MapView in Android

http://stackoverflow.com/questions/1830391/rotate-mapview-in-android

bearing is a float variable that has the degrees that the view should rotate protected void dispatchDraw Canvas canvas canvas.save if compass final float w this.getWidth final float h this.getHeight final float scaleFactor float Math.sqrt h h w w Math.min..

Rotating a view in android

http://stackoverflow.com/questions/1930963/rotating-a-view-in-android

view is large enough to handle the rotated button without clipping it. @Override protected void onDraw Canvas canvas canvas.save canvas.rotate 45 appropriate x pivot value appropriate y pivot value super.onDraw canvas canvas.restore share improve..

How can you display upside down text with a textview in Android?

http://stackoverflow.com/questions/2558257/how-can-you-display-upside-down-text-with-a-textview-in-android

void onDraw Canvas canvas This saves off the matrix that the canvas applies to draws so it can be restored later. canvas.save now we change the matrix We need to rotate around the center of our text Otherwise it rotates around the origin and that's..

Rotate View Hierarchy 90 degrees

http://stackoverflow.com/questions/3444764/rotate-view-hierarchy-90-degrees

getHeight canvas.scale scaleX scaleY getWidth 2 getHeight 2 mForward canvas.getMatrix mForward.invert mReverse canvas.save canvas.setMatrix mForward This is the matrix we need to use for proper positioning of touch events super.dispatchDraw canvas..

Android: Moving background image while navigating through Views

http://stackoverflow.com/questions/4775650/android-moving-background-image-while-navigating-through-views

reduce the scrolling X scroll 5 scroll BadScrollHelp.getScrollX Draw background image at its current locations canvas.save canvas.translate X 0 background.draw canvas canvas.restore ViewFlipper.java package de.android.projects import android.content.Context..

How can I use the animation framework inside the canvas?

http://stackoverflow.com/questions/4938822/how-can-i-use-the-animation-framework-inside-the-canvas

speed when bottom hit. dY acc Increase or decrease speed. Increase rotating angle. if angle 360 angle 0 Draw ball canvas.save Save the position of the canvas. canvas.rotate angle X ballW 2 Y ballH 2 Rotate the canvas. canvas.drawBitmap ball X Y null.. Move it into x y position. canvas.drawBitmap ball matrix null Draw the ball with applied matrix. Rotate method two canvas.save Save the position of the canvas matrix. canvas.rotate angle ballX ballW 2 ballY ballH 2 Rotate the canvas matrix. canvas.drawBitmap..

Pinch zoom for custom view

http://stackoverflow.com/questions/5216658/pinch-zoom-for-custom-view

all events. mScaleDetector.onTouchEvent ev return true @Override public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.scale mScaleFactor mScaleFactor ... Your onDraw code ... canvas.restore private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener..

Image in Canvas with touch events

http://stackoverflow.com/questions/5743328/image-in-canvas-with-touch-events

ev.getPointerId newPointerIndex break return true @Override public void onDraw Canvas canvas super.onDraw canvas canvas.save Log.d DEBUG X mPosX Y mPosY canvas.translate mPosX mPosY canvas.scale mScaleFactor mScaleFactor mImage.draw canvas canvas.restore..

Android: How to rotate a moving animated sprite based on the coordinates of its destination

http://stackoverflow.com/questions/6003823/android-how-to-rotate-a-moving-animated-sprite-based-on-the-coordinates-of-its

X Y move it into x y position canvas.drawBitmap ball matrix null draw the ball with the applied matrix method two canvas.save save the position of the canvas canvas.rotate angle X ballW 2 Y ballH 2 rotate the canvas' matrix canvas.drawBitmap ball..

Android Gauge Animation Question

http://stackoverflow.com/questions/6156674/android-gauge-animation-question

this was slow and often crashed I made some progress by applying the Gauge first to the canvas then saving the canvas canvas.save then clipping a path on the white image then restoring the canvas. However i do not know how to clip in a circular fashion..

Extending RelativeLayout, and overriding dispatchDraw() to create a zoomable ViewGroup

http://stackoverflow.com/questions/6378904/extending-relativelayout-and-overriding-dispatchdraw-to-create-a-zoomable-vie

a simple extension of RelativeLayout with dispatchDraw being overridden protected void dispatchDraw Canvas canvas canvas.save Canvas.MATRIX_SAVE_FLAG canvas.scale mScaleFactor mScaleFactor super.dispatchDraw canvas canvas.restore The mScaleFactor..

Pinch Zoom in android for an imageview?

http://stackoverflow.com/questions/6758847/pinch-zoom-in-android-for-an-imageview

Get Canvas coordinates after scaling up/down or dragging in android

http://stackoverflow.com/questions/7524843/get-canvas-coordinates-after-scaling-up-down-or-dragging-in-android

i've touched.. Also I'm new bee. Here is the code. @Override public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.translate mPosX mPosY canvas.scale mScaleFactor mScaleFactor super.getWidth 0.5f super.getHeight 0.5f mIcon.draw..

How to find absolute position of click while zoomed in

http://stackoverflow.com/questions/8180442/how-to-find-absolute-position-of-click-while-zoomed-in

canvas around the centre ands draw's the image to it. @Override public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.translate mCenterScaleX mCenterScaleY canvas.scale mScaleFactor mScaleFactor canvas.translate mCenterScaleX mCenterScaleY..

Is it possible to set an animated gif file as live wallpaper in android?

http://stackoverflow.com/questions/9158310/is-it-possible-to-set-an-animated-gif-file-as-live-wallpaper-in-android

else long mDiff SystemClock.uptimeMillis mStart mWhen int mDiff mNyanDuration void nyanNyan Canvas canvas canvas.save canvas.scale mScaleX mScaleY mNyan.setTime mWhen mNyan.draw canvas 0 0 canvas.restore This will basically scale the nyan..