2014/10/16 上午 08:11:04

android Programming Glossary: canvas.getwidth

Draw Rectangle Over ImageView for highlight that can be zoom in-out in android

http://stackoverflow.com/questions/10482229/draw-rectangle-over-imageview-for-highlight-that-can-be-zoom-in-out-in-android

rect_y1 30 rect_x1 30 rect_y1 30 myPaint int canavs_width canvas.getWidth int canavs_height canvas.getHeight canvas.setMatrix mCanvasMatrix..

Add text to image in android programmatically

http://stackoverflow.com/questions/11100428/add-text-to-image-in-android-programmatically

than the canvas reduce the font size if textRect.width canvas.getWidth 4 the padding on either sides is considered as 4 so as to appropriately.. used for different dpi's Calculate the positions int xPos canvas.getWidth 2 2 2 is for regulating the x position offset paint.descent..

How to draw an overlay on a SurfaceView used by Camera on Android?

http://stackoverflow.com/questions/2933882/how-to-draw-an-overlay-on-a-surfaceview-used-by-camera-on-android

drawn Paint p new Paint Color.RED canvas.drawText PREVIEW canvas.getWidth 2 canvas.getHeight 2 p android camera surfaceview share..

How to draw a smooth/dithered gradient on a canvas in Android

http://stackoverflow.com/questions/2936803/how-to-draw-a-smooth-dithered-gradient-on-a-canvas-in-android

gradient.setGradientRadius canvas.getWidth 2 gradient.setDither true g gradient.setGradientCenter 0.1f..

Threading UI updates in Android

http://stackoverflow.com/questions/3745405/threading-ui-updates-in-android

@Override protected void onDraw Canvas canvas float x canvas.getWidth 2 canvas.drawColor Color.WHITE canvas.drawCircle x y 30 paint.. @Override protected void onDraw Canvas canvas float x canvas.getWidth 2 canvas.drawColor Color.WHITE canvas.drawCircle x y 30 paint..

camera.setParameters failed in android

http://stackoverflow.com/questions/3890381/camera-setparameters-failed-in-android

new Paint Color.RED Log.d TAG draw canvas.drawText PREVIEW canvas.getWidth 2 canvas.getHeight 2 p android share improve this question..

How can I draw an Arrow showing the driving direction in MapView?

http://stackoverflow.com/questions/4331794/how-can-i-draw-an-arrow-showing-the-driving-direction-in-mapview

rotateMatrix new Matrix rotateMatrix.setRotate angle canvas.getWidth 2 canvas.getHeight 2 Draw bitmap onto canvas using matrix canvas.drawBitmap..

Android transparent canvas (surfaceview)

http://stackoverflow.com/questions/7293961/android-transparent-canvas-surfaceview

2 int CanvasHeight canvas.getHeight int CanvasWidth canvas.getWidth canvas.drawLine LeftStartX LeftStartY StopX StopY paint public..

Android: how to display camera preview with callback?

http://stackoverflow.com/questions/8350230/android-how-to-display-camera-preview-with-callback

mHolder.lockCanvas if canvas null canvas.drawBitmap bmp canvas.getWidth width 2 canvas.getHeight height 2 null mHolder.unlockCanvasAndPost..

click event on pie chart in android [closed]

http://stackoverflow.com/questions/8981996/click-event-on-pie-chart-in-android

canvas super.onDraw canvas bitmap Bitmap.createBitmap canvas.getWidth canvas.getHeight Bitmap.Config.ARGB_8888 Canvas c new Canvas..

BitmapDrawable deprecated alternative

http://stackoverflow.com/questions/9978884/bitmapdrawable-deprecated-alternative

rotateMatrix new Matrix rotateMatrix.setRotate angle canvas.getWidth 2 canvas.getHeight 2 Draw bitmap onto canvas using matrix canvas.drawBitmap..

Draw Rectangle Over ImageView for highlight that can be zoom in-out in android

http://stackoverflow.com/questions/10482229/draw-rectangle-over-imageview-for-highlight-that-can-be-zoom-in-out-in-android

orignalRect myPaint canvas.drawRect rect_x1 30 rect_y1 30 rect_x1 30 rect_y1 30 myPaint int canavs_width canvas.getWidth int canavs_height canvas.getHeight canvas.setMatrix mCanvasMatrix canvas.setMatrix mMatrix if mDrawable null mDrawable.draw..

Add text to image in android programmatically

http://stackoverflow.com/questions/11100428/add-text-to-image-in-android-programmatically

textRect Canvas canvas new Canvas bm If the text is bigger than the canvas reduce the font size if textRect.width canvas.getWidth 4 the padding on either sides is considered as 4 so as to appropriately fit in the text paint.setTextSize convertToPixels.. convertToPixels mContext 7 Scaling needs to be used for different dpi's Calculate the positions int xPos canvas.getWidth 2 2 2 is for regulating the x position offset paint.descent paint.ascent 2 is the distance from the baseline to the center...

How to draw an overlay on a SurfaceView used by Camera on Android?

http://stackoverflow.com/questions/2933882/how-to-draw-an-overlay-on-a-surfaceview-used-by-camera-on-android

void draw Canvas canvas super.draw canvas nothing gets drawn Paint p new Paint Color.RED canvas.drawText PREVIEW canvas.getWidth 2 canvas.getHeight 2 p android camera surfaceview share improve this question SurfaceView probably does not work like..

How to draw a smooth/dithered gradient on a canvas in Android

http://stackoverflow.com/questions/2936803/how-to-draw-a-smooth-dithered-gradient-on-a-canvas-in-android

Orientation.TL_BR colors gradient.setGradientType GradientDrawable.RADIAL_GRADIENT gradient.setGradientRadius canvas.getWidth 2 gradient.setDither true g gradient.setGradientCenter 0.1f 0.1f gradient.setBounds cb gradient.draw canvas android gradient..

Threading UI updates in Android

http://stackoverflow.com/questions/3745405/threading-ui-updates-in-android

View public SimpleMotion Context context super context @Override protected void onDraw Canvas canvas float x canvas.getWidth 2 canvas.drawColor Color.WHITE canvas.drawCircle x y 30 paint if System.currentTimeMillis now delay y invalidate It works.. catch InterruptedException e e.printStackTrace .start @Override protected void onDraw Canvas canvas float x canvas.getWidth 2 canvas.drawColor Color.WHITE canvas.drawCircle x y 30 paint if System.currentTimeMillis now delay y invalidate With..

camera.setParameters failed in android

http://stackoverflow.com/questions/3890381/camera-setparameters-failed-in-android

public void draw Canvas canvas super.draw canvas Paint p new Paint Color.RED Log.d TAG draw canvas.drawText PREVIEW canvas.getWidth 2 canvas.getHeight 2 p android share improve this question It is failing because not all devices support arbitrary..

How can I draw an Arrow showing the driving direction in MapView?

http://stackoverflow.com/questions/4331794/how-can-i-draw-an-arrow-showing-the-driving-direction-in-mapview

canvas new Canvas canvasBitmap Create rotation matrix Matrix rotateMatrix new Matrix rotateMatrix.setRotate angle canvas.getWidth 2 canvas.getHeight 2 Draw bitmap onto canvas using matrix canvas.drawBitmap arrowBitmap rotateMatrix null return new BitmapDrawable..

Android transparent canvas (surfaceview)

http://stackoverflow.com/questions/7293961/android-transparent-canvas-surfaceview

50 120 120 120 paint.setARGB 255 255 0 0 paint.setStrokeWidth 2 int CanvasHeight canvas.getHeight int CanvasWidth canvas.getWidth canvas.drawLine LeftStartX LeftStartY StopX StopY paint public void updateDrawing float LB float RB float BD float AH float..

Android: how to display camera preview with callback?

http://stackoverflow.com/questions/8350230/android-how-to-display-camera-preview-with-callback

rgba 0 offset width stride 0 0 width height Canvas canvas mHolder.lockCanvas if canvas null canvas.drawBitmap bmp canvas.getWidth width 2 canvas.getHeight height 2 null mHolder.unlockCanvasAndPost canvas else Log.w TAG Canvas is null bmp.recycle Of..

click event on pie chart in android [closed]

http://stackoverflow.com/questions/8981996/click-event-on-pie-chart-in-android

5f values.add 2f @Override protected void onDraw Canvas canvas super.onDraw canvas bitmap Bitmap.createBitmap canvas.getWidth canvas.getHeight Bitmap.Config.ARGB_8888 Canvas c new Canvas bitmap Log.e onDraw is called... float offset 0 float sum..

BitmapDrawable deprecated alternative

http://stackoverflow.com/questions/9978884/bitmapdrawable-deprecated-alternative