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2014/10/16 ¤W¤È 08:11:04
android Programming Glossary: canvas.getheightDraw 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 myPaint int canavs_width canvas.getWidth int canavs_height canvas.getHeight canvas.setMatrix mCanvasMatrix canvas.setMatrix mMatrix if mDrawable..
How to add pagelines to a EditText in android? http://stackoverflow.com/questions/10992411/how-to-add-pagelines-to-a-edittext-in-android @Override protected void onDraw Canvas canvas int height canvas.getHeight int curHeight 0 Rect r mRect Paint paint mPaint int baseline..
Add text to image in android programmatically http://stackoverflow.com/questions/11100428/add-text-to-image-in-android-programmatically the distance from the baseline to the center. int yPos int canvas.getHeight 2 paint.descent paint.ascent 2 canvas.drawText text xPos yPos..
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 Paint Color.RED canvas.drawText PREVIEW canvas.getWidth 2 canvas.getHeight 2 p android camera surfaceview share improve this question..
camera.setParameters failed in android http://stackoverflow.com/questions/3890381/camera-setparameters-failed-in-android Log.d TAG draw canvas.drawText PREVIEW canvas.getWidth 2 canvas.getHeight 2 p android share improve this question It is failing..
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 new Matrix rotateMatrix.setRotate angle canvas.getWidth 2 canvas.getHeight 2 Draw bitmap onto canvas using matrix canvas.drawBitmap arrowBitmap..
android maps circle overlay, dynamically change radius? http://stackoverflow.com/questions/5722490/android-maps-circle-overlay-dynamically-change-radius radius float Math.pow 2 mapView.getZoomLevel 10 if radius canvas.getHeight 25 radius canvas.getHeight 25 canvas.drawCircle pt.x pt.y radius.. 10 if radius canvas.getHeight 25 radius canvas.getHeight 25 canvas.drawCircle pt.x pt.y radius paint2 canvas.drawCircle..
Android transparent canvas (surfaceview) http://stackoverflow.com/questions/7293961/android-transparent-canvas-surfaceview 255 255 0 0 paint.setStrokeWidth 2 int CanvasHeight canvas.getHeight int CanvasWidth canvas.getWidth canvas.drawLine LeftStartX LeftStartY..
Android: how to display camera preview with callback? http://stackoverflow.com/questions/8350230/android-how-to-display-camera-preview-with-callback canvas null canvas.drawBitmap bmp canvas.getWidth width 2 canvas.getHeight height 2 null mHolder.unlockCanvasAndPost canvas else Log.w..
click event on pie chart in android [closed] http://stackoverflow.com/questions/8981996/click-event-on-pie-chart-in-android canvas bitmap Bitmap.createBitmap canvas.getWidth canvas.getHeight Bitmap.Config.ARGB_8888 Canvas c new Canvas bitmap Log.e onDraw..
BitmapDrawable deprecated alternative http://stackoverflow.com/questions/9978884/bitmapdrawable-deprecated-alternative new Matrix rotateMatrix.setRotate angle canvas.getWidth 2 canvas.getHeight 2 Draw bitmap onto canvas using matrix canvas.drawBitmap arrowBitmap..
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 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 canvas Log.v Log_tag draw with..
How to add pagelines to a EditText in android? http://stackoverflow.com/questions/10992411/how-to-add-pagelines-to-a-edittext-in-android @param canvas The canvas on which the background is drawn. @Override protected void onDraw Canvas canvas int height canvas.getHeight int curHeight 0 Rect r mRect Paint paint mPaint int baseline getLineBounds 0 r for curHeight baseline 1 curHeight height..
Add text to image in android programmatically http://stackoverflow.com/questions/11100428/add-text-to-image-in-android-programmatically the x position offset paint.descent paint.ascent 2 is the distance from the baseline to the center. int yPos int canvas.getHeight 2 paint.descent paint.ascent 2 canvas.drawText text xPos yPos paint return new BitmapDrawable getResources bm public static..
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 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 a regular View..
camera.setParameters failed in android http://stackoverflow.com/questions/3890381/camera-setparameters-failed-in-android 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 preview sizes. Apparently..
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 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 canvasBitmap..
android maps circle overlay, dynamically change radius? http://stackoverflow.com/questions/5722490/android-maps-circle-overlay-dynamically-change-radius Point pt mapView.getProjection .toPixels point null float radius float Math.pow 2 mapView.getZoomLevel 10 if radius canvas.getHeight 25 radius canvas.getHeight 25 canvas.drawCircle pt.x pt.y radius paint2 canvas.drawCircle pt.x pt.y radius paint1 Explanation.. .toPixels point null float radius float Math.pow 2 mapView.getZoomLevel 10 if radius canvas.getHeight 25 radius canvas.getHeight 25 canvas.drawCircle pt.x pt.y radius paint2 canvas.drawCircle pt.x pt.y radius paint1 Explanation the documentation states..
Android transparent canvas (surfaceview) http://stackoverflow.com/questions/7293961/android-transparent-canvas-surfaceview doDraw Canvas canvas canvas.drawARGB 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..
Android: how to display camera preview with callback? http://stackoverflow.com/questions/8350230/android-how-to-display-camera-preview-with-callback 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 course you'd have to adapt..
click event on pie chart in android [closed] http://stackoverflow.com/questions/8981996/click-event-on-pie-chart-in-android 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 0 for int a 0 a values.size..
BitmapDrawable deprecated alternative http://stackoverflow.com/questions/9978884/bitmapdrawable-deprecated-alternative 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 canvasBitmap..
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