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2014/10/16 ¤W¤È 08:12:41
android Programming Glossary: drawWhy retrieving Google Directions for Android using KML data is not working anymore? [duplicate] http://stackoverflow.com/questions/11745314/why-retrieving-google-directions-for-android-using-kml-data-is-not-working-anymo STROKE 4.5f Route path. private final Path path Point to draw with. private final Point p Paint for path. private final Paint.. the route. @param defaultColour default colour to draw route in. public RouteOverlay final Route route final int defaultColour.. p new Point paint new Paint @Override public final void draw final Canvas c final MapView mv final boolean shadow super.draw..
Vertical (rotated) label in Android http://stackoverflow.com/questions/1258275/vertical-rotated-label-in-android super.setFrame l t l b t t r l @Override public void draw Canvas canvas if topDown canvas.translate getHeight 0 canvas.rotate.. getHeight android.graphics.Region.Op.REPLACE super.draw canvas By default rotated text is from top to bottom. If you.. top to bottom. If you set android gravity bottom then it's drawn from bottom to top. Technically it fools underlying TextView..
Android View.getDrawingCache returns null, only null http://stackoverflow.com/questions/2339429/android-view-getdrawingcache-returns-null-only-null null TODO Make this work Log.w View View child's drawing cache is null setImageBitmap child.getDrawingCache TODO MAKE.. TODO MAKE THIS WORK ALWAYS logs that the drawing cache is null and sets the bitmap to null Do I have to actually.. is null and sets the bitmap to null Do I have to actually draw the view before the cache is set Thanks android caching view..
Focusable EditText inside ListView http://stackoverflow.com/questions/2679948/focusable-edittext-inside-listview experience. 2. setItemsCanFocus false selector is always drawn in non touch mode and EditText can never get focus even if.. I use beforeDescendants because the selector will only be drawn when the ListView itself not a child has focus so the default.. needs to be that the ListView takes focus first and draws selectors. Then in the OnItemSelectedListener since I know..
How to draw a path on a map using kml file? http://stackoverflow.com/questions/3109158/how-to-draw-a-path-on-a-map-using-kml-file to draw a path on a map using kml file Can I parse kml file in order.. null return navigationDataSet Drawing Does the actual drawing of the route based on the geo points provided in the nav.. information incl. geo pos @param color Color in which to draw the lines @param mMapView01 Map view to draw onto public void..
http://stackoverflow.com/questions/3616676/how-to-draw-a-line-in-android to draw a line in android Can anybody tell how to draw a line in Android.. to draw a line in android Can anybody tell how to draw a line in Android perhaps with an example android share improve.. example android share improve this question this one draws 2 lines which form a cross on the top left of the screen DrawView.java..
Custom ImageView with drop shadow http://stackoverflow.com/questions/3693234/custom-imageview-with-drop-shadow Canvas canvas Rect r mRect Paint paint mPaint canvas.drawRect r paint super.onDraw canvas @Override protected void onMeasure.. rectangular images with the below code. It still won't draw the shadow directly to my bitmap's transparency though so I'm.. Bitmap bmp BitmapFactory.decodeResource getResources R.drawable.omen Paint paint new Paint paint.setAntiAlias true paint.setShadowLayer..
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 as views and layouts. The canvas is just a surface for drawing which is either part of a View or linked to a bitmap. In.. to a bitmap. In onDraw in a custom view only one frame is drawn at the time until next invalidate is called which means that.. next invalidate is called which means that you have to draw your animation frame by frame. Here is an example of bouncing..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds cases with hack solutions have no solution or involve re drawing the TextView recursively until it is small enough which is.. listed some alternatives in my answer. android automation drawing textview textwrapping share improve this question As a.. Trim characters off until we have enough room to draw the ellipsis while width lineWidth ellipseWidth lineWidth..
Google Maps API Version difference http://stackoverflow.com/questions/11323500/google-maps-api-version-difference these three answer links that solves your problem Android Draw route map between two geopoints http stackoverflow.com a 10268114..
Draw text in OpenGL ES (Android) http://stackoverflow.com/questions/1339136/draw-text-in-opengl-es-android text in OpenGL ES Android I'm currently developing a small..
Fast Scroll display problem with ListAdapter and SectionIndexer http://stackoverflow.com/questions/3225092/fast-scroll-display-problem-with-listadapter-and-sectionindexer OnScrollListener OnHierarchyChangeListener private Drawable mCurrentThumb private Drawable mOverlayDrawable private.. private Drawable mCurrentThumb private Drawable mOverlayDrawable private int mThumbH private int mThumbW.. private Drawable mCurrentThumb private Drawable mOverlayDrawable private int mThumbH private int mThumbW private int mThumbY..
Erase bitmap parts using PorterDuff mode http://stackoverflow.com/questions/3467334/erase-bitmap-parts-using-porterduff-mode setContentView new DrawView this public class DrawView extends View implements OnTouchListener.. setContentView new DrawView this public class DrawView extends View implements OnTouchListener private int x 0.. new Paint private final Paint eraserPaint new Paint public DrawView Context context super context setFocusable true setFocusableInTouchMode..
converting a canvas into bitmap image in android http://stackoverflow.com/questions/4013725/converting-a-canvas-into-bitmap-image-in-android and these can even be fetched from the control using getDrawingCache If you want to draw using a canvas to a bitmap the usual..
How to display popup on tapping overlay in android? http://stackoverflow.com/questions/4486864/how-to-display-popup-on-tapping-overlay-in-android false private boolean temp true first true firstDraw true public boolean tempDefaule true public MoreInformation.. new Paint myPaintWhite.setARGB 255 255 255 255 Draw inner info window canvas.drawRoundRect infoWindowRect 5 5 getInnerPaint.. canvas.drawRoundRect infoWindowRect 5 5 getInnerPaint Draw border for info window canvas.drawRoundRect infoWindowRect..
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 which is either part of a View or linked to a bitmap. In onDraw in a custom view only one frame is drawn at the time until next.. centre of the screen. Y initialY @Override public void onDraw Canvas canvas super.onDraw canvas Draw background. canvas.drawBitmap.. @Override public void onDraw Canvas canvas super.onDraw canvas Draw background. canvas.drawBitmap bgr 0 0 null Compute..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds targetTextSize mMinTextSize textHeight height Draw using a static layout StaticLayout layout new StaticLayout text..
Modifying the Android seekbar widget to operate vertically http://stackoverflow.com/questions/631238/modifying-the-android-seekbar-widget-to-operate-vertically t r b left l right r top t bottom b protected void onDraw Canvas c c.rotate 90 c.translate 0 29 super.onDraw c public.. onDraw Canvas c c.rotate 90 c.translate 0 29 super.onDraw c public boolean onTouchEvent MotionEvent event xPos event.getX.. getMeasuredHeight getMeasuredWidth protected void onDraw Canvas c c.rotate 90 c.translate getHeight 0 super.onDraw c..
How can I manipulate the camera preview? http://stackoverflow.com/questions/6478375/how-can-i-manipulate-the-camera-preview to draw over the surface you can override the surface's onDraw function you could potentially analyze the returned camera image.. @Override protected void onDraw Canvas canvas canvas.drawRect new Rect int Math.random 100 int.. 100 200 200 rectanglePaint Log.w this.getClass .getName On Draw Called public void surfaceChanged SurfaceHolder holder int format..
Android Camera will not work. startPreview fails http://stackoverflow.com/questions/7942378/android-camera-will-not-work-startpreview-fails E AndroidRuntime 5040 at android.view.SurfaceView.dispatchDraw SurfaceView.java 341 10 30 00 31 52.588 E AndroidRuntime 5040.. E AndroidRuntime 5040 at android.view.ViewGroup.dispatchDraw ViewGroup.java 1367 10 30 00 31 52.588 E AndroidRuntime 5040.. E AndroidRuntime 5040 at android.view.ViewGroup.dispatchDraw ViewGroup.java 1367 10 30 00 31 52.588 E AndroidRuntime 5040..
Why retrieving Google Directions for Android using KML data is not working anymore? [duplicate] http://stackoverflow.com/questions/11745314/why-retrieving-google-directions-for-android-using-kml-data-is-not-working-anymo final int ALPHA 120 Stroke width. private static final float STROKE 4.5f Route path. private final Path path Point to draw with. private final Point p Paint for path. private final Paint paint Public constructor. @param route Route object representing.. paint Public constructor. @param route Route object representing the route. @param defaultColour default colour to draw route in. public RouteOverlay final Route route final int defaultColour super routePoints route.getPoints colour defaultColour.. route.getPoints colour defaultColour path new Path p new Point paint new Paint @Override public final void draw final Canvas c final MapView mv final boolean shadow super.draw c mv shadow paint.setColor colour paint.setAlpha ALPHA..
Vertical (rotated) label in Android http://stackoverflow.com/questions/1258275/vertical-rotated-label-in-android protected boolean setFrame int l int t int r int b return super.setFrame l t l b t t r l @Override public void draw Canvas canvas if topDown canvas.translate getHeight 0 canvas.rotate 90 else canvas.translate 0 getWidth canvas.rotate 90.. 0 getWidth canvas.rotate 90 canvas.clipRect 0 0 getWidth getHeight android.graphics.Region.Op.REPLACE super.draw canvas By default rotated text is from top to bottom. If you set android gravity bottom then it's drawn from bottom to.. super.draw canvas By default rotated text is from top to bottom. If you set android gravity bottom then it's drawn from bottom to top. Technically it fools underlying TextView to think that it's normal rotation swapping width height in..
Android View.getDrawingCache returns null, only null http://stackoverflow.com/questions/2339429/android-view-getdrawingcache-returns-null-only-null false child.buildDrawingCache if child.getDrawingCache null TODO Make this work Log.w View View child's drawing cache is null setImageBitmap child.getDrawingCache TODO MAKE THIS WORK ALWAYS logs that the drawing cache is null and.. View View child's drawing cache is null setImageBitmap child.getDrawingCache TODO MAKE THIS WORK ALWAYS logs that the drawing cache is null and sets the bitmap to null Do I have to actually draw the view before the cache is set Thanks android.. TODO MAKE THIS WORK ALWAYS logs that the drawing cache is null and sets the bitmap to null Do I have to actually draw the view before the cache is set Thanks android caching view share improve this question I was having this problem also..
Focusable EditText inside ListView http://stackoverflow.com/questions/2679948/focusable-edittext-inside-listview is selected both of which can give the user an unexpected experience. 2. setItemsCanFocus false selector is always drawn in non touch mode and EditText can never get focus even if you tap on it. To make matters worse calling editTextView.requestFocus.. fill_parent android descendantFocusability beforeDescendants I use beforeDescendants because the selector will only be drawn when the ListView itself not a child has focus so the default behavior needs to be that the ListView takes focus first.. the ListView itself not a child has focus so the default behavior needs to be that the ListView takes focus first and draws selectors. Then in the OnItemSelectedListener since I know which header view I want to override the selector would take..
How to draw a path on a map using kml file? http://stackoverflow.com/questions/3109158/how-to-draw-a-path-on-a-map-using-kml-file to draw a path on a map using kml file Can I parse kml file in order to display paths or points in Android Please could you help.. e Log.e myapp.APP error with kml xml e navigationDataSet null return navigationDataSet Drawing Does the actual drawing of the route based on the geo points provided in the nav set @param navSet Navigation set bean that holds the route information.. set @param navSet Navigation set bean that holds the route information incl. geo pos @param color Color in which to draw the lines @param mMapView01 Map view to draw onto public void drawPath NavigationDataSet navSet int color MapView mMapView01..
http://stackoverflow.com/questions/3616676/how-to-draw-a-line-in-android to draw a line in android Can anybody tell how to draw a line in Android perhaps with an example android share improve this.. to draw a line in android Can anybody tell how to draw a line in Android perhaps with an example android share improve this question this one draws 2 lines which form a cross.. anybody tell how to draw a line in Android perhaps with an example android share improve this question this one draws 2 lines which form a cross on the top left of the screen DrawView.java import android.content.Context import android.graphics.Canvas..
Custom ImageView with drop shadow http://stackoverflow.com/questions/3693234/custom-imageview-with-drop-shadow 2f 1f 1f Color.BLACK @Override protected void onDraw Canvas canvas Rect r mRect Paint paint mPaint canvas.drawRect r paint super.onDraw canvas @Override protected void onMeasure int w int h super.onMeasure w h int mH mW mW getSuggestedMinimumWidth.. some in the IRC channel and I have it working now for plain rectangular images with the below code. It still won't draw the shadow directly to my bitmap's transparency though so I'm still working on that. @Override protected void onDraw Canvas.. working on that. @Override protected void onDraw Canvas canvas Bitmap bmp BitmapFactory.decodeResource getResources R.drawable.omen Paint paint new Paint paint.setAntiAlias true paint.setShadowLayer 5.5f 6.0f 6.0f Color.BLACK canvas.drawColor..
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 question The Android animation class applies to objects such as views and layouts. The canvas is just a surface for drawing which is either part of a View or linked to a bitmap. In onDraw in a custom view only one frame is drawn at the time.. surface for drawing which is either part of a View or linked to a bitmap. In onDraw in a custom view only one frame is drawn at the time until next invalidate is called which means that you have to draw your animation frame by frame. Here is an.. in a custom view only one frame is drawn at the time until next invalidate is called which means that you have to draw your animation frame by frame. Here is an example of bouncing ball which rotates which you may find useful. import android.app.Activity..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds auto resizing was needed but they are either very special cases with hack solutions have no solution or involve re drawing the TextView recursively until it is small enough which is memory intense and forces the user to watch the text shrink.. had I recommend Chase's solution for most cases and I've listed some alternatives in my answer. android automation drawing textview textwrapping share improve this question As a mobile developer I was sad to find nothing native that supports.. lastLine float ellipseWidth textPaint.measureText mEllipsis Trim characters off until we have enough room to draw the ellipsis while width lineWidth ellipseWidth lineWidth textPaint.measureText text.subSequence start end 1 .toString..
Google Maps API Version difference http://stackoverflow.com/questions/11323500/google-maps-api-version-difference How we can resolve problem in above question Please refer these three answer links that solves your problem Android Draw route map between two geopoints http stackoverflow.com a 10268114 1472665 http stackoverflow.com a 11357351 1494309 share..
Draw text in OpenGL ES (Android) http://stackoverflow.com/questions/1339136/draw-text-in-opengl-es-android text in OpenGL ES Android I'm currently developing a small OpenGL game for the Android platform and I wonder if there's..
Fast Scroll display problem with ListAdapter and SectionIndexer http://stackoverflow.com/questions/3225092/fast-scroll-display-problem-with-listadapter-and-sectionindexer public class CustomFastScrollView extends FrameLayout implements OnScrollListener OnHierarchyChangeListener private Drawable mCurrentThumb private Drawable mOverlayDrawable private int mThumbH private int mThumbW private int mThumbY private.. extends FrameLayout implements OnScrollListener OnHierarchyChangeListener private Drawable mCurrentThumb private Drawable mOverlayDrawable private int mThumbH private int mThumbW private int mThumbY private RectF mOverlayPos custom values.. implements OnScrollListener OnHierarchyChangeListener private Drawable mCurrentThumb private Drawable mOverlayDrawable private int mThumbH private int mThumbW private int mThumbY private RectF mOverlayPos custom values I defined private..
Erase bitmap parts using PorterDuff mode http://stackoverflow.com/questions/3467334/erase-bitmap-parts-using-porterduff-mode .setFlags WindowManager.LayoutParams.FLAG_FULLSCREEN WindowManager.LayoutParams.FLAG_FULLSCREEN setContentView new DrawView this public class DrawView extends View implements OnTouchListener private int x 0 private int y 0 Bitmap bitmap Canvas.. WindowManager.LayoutParams.FLAG_FULLSCREEN setContentView new DrawView this public class DrawView extends View implements OnTouchListener private int x 0 private int y 0 Bitmap bitmap Canvas bitmapCanvas private final.. Bitmap bitmap Canvas bitmapCanvas private final Paint paint new Paint private final Paint eraserPaint new Paint public DrawView Context context super context setFocusable true setFocusableInTouchMode true this.setOnTouchListener this Set background..
converting a canvas into bitmap image in android http://stackoverflow.com/questions/4013725/converting-a-canvas-into-bitmap-image-in-android automatically cache their drawing to temporary bitmaps and these can even be fetched from the control using getDrawingCache If you want to draw using a canvas to a bitmap the usual recipe is Create a bitmap of the correct size using Bitmap.createBitmap..
How to display popup on tapping overlay in android? http://stackoverflow.com/questions/4486864/how-to-display-popup-on-tapping-overlay-in-android innerPaint borderPaint textPaint private boolean isRemovePriorPopup false private boolean temp true first true firstDraw true public boolean tempDefaule true public MoreInformation myMoreInformation public PantryLocation location The currently.. 90 Paint myPaintBlack new Paint Paint myPaintWhite new Paint myPaintWhite.setARGB 255 255 255 255 Draw inner info window canvas.drawRoundRect infoWindowRect 5 5 getInnerPaint Draw border for info window canvas.drawRoundRect.. myPaintWhite.setARGB 255 255 255 255 Draw inner info window canvas.drawRoundRect infoWindowRect 5 5 getInnerPaint Draw border for info window canvas.drawRoundRect infoWindowRect 5 5 getBorderPaint Draw the MapLocation's name myPaintBlack.setColor..
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 views and layouts. The canvas is just a surface for drawing which is either part of a View or linked to a bitmap. In onDraw in a custom view only one frame is drawn at the time until next invalidate is called which means that you have to draw your.. fit the screen. X int screenW 2 ballW 2 Centre ball into the centre of the screen. Y initialY @Override public void onDraw Canvas canvas super.onDraw canvas Draw background. canvas.drawBitmap bgr 0 0 null Compute roughly ball speed and location... 2 ballW 2 Centre ball into the centre of the screen. Y initialY @Override public void onDraw Canvas canvas super.onDraw canvas Draw background. canvas.drawBitmap bgr 0 0 null Compute roughly ball speed and location. Y int dY Increase or decrease..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds text size and still don't fit append an ellipsis if mAddEllipsis targetTextSize mMinTextSize textHeight height Draw using a static layout StaticLayout layout new StaticLayout text textPaint width Alignment.ALIGN_NORMAL mSpacingMult mSpacingAdd..
Modifying the Android seekbar widget to operate vertically http://stackoverflow.com/questions/631238/modifying-the-android-seekbar-widget-to-operate-vertically changed int l int t int r int b super.onLayout changed l t r b left l right r top t bottom b protected void onDraw Canvas c c.rotate 90 c.translate 0 29 super.onDraw c public boolean onTouchEvent MotionEvent event xPos event.getX.. l t r b left l right r top t bottom b protected void onDraw Canvas c c.rotate 90 c.translate 0 29 super.onDraw c public boolean onTouchEvent MotionEvent event xPos event.getX yPos event.getY float progress yPos this.getTop this.getBottom.. heightMeasureSpec widthMeasureSpec setMeasuredDimension getMeasuredHeight getMeasuredWidth protected void onDraw Canvas c c.rotate 90 c.translate getHeight 0 super.onDraw c private OnSeekBarChangeListener onChangeListener @Override public..
How can I manipulate the camera preview? http://stackoverflow.com/questions/6478375/how-can-i-manipulate-the-camera-preview of other gems I found as well. If all you want is to be able to draw over the surface you can override the surface's onDraw function you could potentially analyze the returned camera image and draw an overlay it'd be much faster than trying to.. getHolder mHolder.addCallback this mHolder.setType SurfaceHolder.SURFACE_TYPE_NORMAL @Override protected void onDraw Canvas canvas canvas.drawRect new Rect int Math.random 100 int Math.random 100 200 200 rectanglePaint Log.w this.getClass.. new Rect int Math.random 100 int Math.random 100 200 200 rectanglePaint Log.w this.getClass .getName On Draw Called public void surfaceChanged SurfaceHolder holder int format int width int height public void surfaceCreated SurfaceHolder..
Android Camera will not work. startPreview fails http://stackoverflow.com/questions/7942378/android-camera-will-not-work-startpreview-fails SurfaceView.java 544 10 30 00 31 52.588 E AndroidRuntime 5040 at android.view.SurfaceView.dispatchDraw SurfaceView.java 341 10 30 00 31 52.588 E AndroidRuntime 5040 at android.view.ViewGroup.drawChild ViewGroup.java 1638 10.. ViewGroup.java 1638 10 30 00 31 52.588 E AndroidRuntime 5040 at android.view.ViewGroup.dispatchDraw ViewGroup.java 1367 10 30 00 31 52.588 E AndroidRuntime 5040 at android.view.View.draw View.java 6743 10 30 00 31 52.588.. ViewGroup.java 1640 10 30 00 31 52.588 E AndroidRuntime 5040 at android.view.ViewGroup.dispatchDraw ViewGroup.java 1367 10 30 00 31 52.588 E AndroidRuntime 5040 at android.view.ViewGroup.drawChild ViewGroup.java 1638 10..
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