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2014/10/16 ¤W¤È 08:11:38
android Programming Glossary: createbitmapRotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk a new bitmap to put the pixels into it using Bitmap Bitmap.createBitmap int width int height Bitmap.Config config LOGD creating new.. Bitmap.Config config LOGD creating new bitmap... jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid.. createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring..
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory a new bitmap to put the pixels into it using Bitmap Bitmap.createBitmap int width int height Bitmap.Config config LOGD creating new.. bitmapCls env FindClass android graphics Bitmap jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid.. createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring..
JNI bitmap operations , for helping to avoid OOM when using large images [closed] http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images a new bitmap to put the pixels into it using Bitmap Bitmap.createBitmap int width int height Bitmap.Config config LOGD creating new.. bitmapCls env FindClass android graphics Bitmap jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid.. createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring..
Memory efficient image resize in Android http://stackoverflow.com/questions/3219672/memory-efficient-image-resize-in-android scaleFactor scaleFactor final Bitmap scaledImage Bitmap.createBitmap image 0 0 imgWidth imgHeight scale false image.recycle It looks.. image.recycle It looks like the OOM happens during the createBitmap . Is there a more memory efficient way to do this Perhaps something..
Android: How to rotate a bitmap on a center point http://stackoverflow.com/questions/4166917/android-how-to-rotate-a-bitmap-on-a-center-point mtx.postTranslate pivotX pivotY Bitmap rotatedBMP Bitmap.createBitmap bitmap 0 0 spriteWidth spriteHeight mtx true this.bitmap rotatedBMP.. sequence of code will help you Bitmap targetBitmap Bitmap.createBitmap targetWidth targetHeight config Canvas canvas new Canvas targetBitmap.. java android graphics Bitmap.java public static Bitmap createBitmap Bitmap source int x int y int width int height Matrix m boolean..
How to save a JPEG image on Android with a custom quality level http://stackoverflow.com/questions/4579647/how-to-save-a-jpeg-image-on-android-with-a-custom-quality-level compress and setting the second parameter Bitmap bm2 createBitmap OutputStream stream new FileOutputStream sdcard test.png Write..
Android: creating a Bitmap with SurfaceView content http://stackoverflow.com/questions/4742868/android-creating-a-bitmap-with-surfaceview-content a Canvas that's backed by a Bitmap be sure to call the createBitmap that returns a mutable Bitmap Bitmap b Bitmap.createBitmap 100.. createBitmap that returns a mutable Bitmap Bitmap b Bitmap.createBitmap 100 100 Bitmap.Config.ARGB_8888 Canvas c new Canvas b yourSurfaceView.draw..
Does “Bitmap.createScaledBitmap” convert an 32 bit image into 24 bit? http://stackoverflow.com/questions/6278992/does-bitmap-createscaledbitmap-convert-an-32-bit-image-into-24-bit sy dstHeight float height m.setScale sx sy Bitmap b Bitmap.createBitmap src 0 0 width height m filter synchronized Bitmap.class do we.. null sScaleMatrix m return b And the call to createBitmap should return your unchanged source bitmap due to this check.. this check and end up here if m null m.isIdentity bitmap createBitmap neww newh source.hasAlpha Config.ARGB_8888 Config.RGB_565 paint..
Get image Uri + thumbnail of the picture shot with camera in Android http://stackoverflow.com/questions/7257573/get-image-uri-thumbnail-of-the-picture-shot-with-camera-in-android options you need. So you can now build a bitmap using createBitmap or use file path for whatever you need share improve this answer..
http://stackoverflow.com/questions/9838518/carousel-library-for-android @see pl.polidea.coverflow.AbstractCoverFlowImageAdapter#createBitmap int @Override protected Bitmap createBitmap final int position.. int @Override protected Bitmap createBitmap final int position Log.v TAG creating item position final Bitmap.. @see pl.polidea.coverflow.AbstractCoverFlowImageAdapter#createBitmap int @Override protected Bitmap createBitmap int position this.position..
Rotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk NULL env CallVoidMethod bitmap recycleFunction creating a new bitmap to put the pixels into it using Bitmap Bitmap.createBitmap int width int height Bitmap.Config config LOGD creating new bitmap... jmethodID createBitmapFunction env GetStaticMethodID.. it using Bitmap Bitmap.createBitmap int width int height Bitmap.Config config LOGD creating new bitmap... jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring.. height Bitmap.Config config LOGD creating new bitmap... jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass..
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory data was stored. returning null... return NULL creating a new bitmap to put the pixels into it using Bitmap Bitmap.createBitmap int width int height Bitmap.Config config LOGD creating new bitmap... jclass bitmapCls env FindClass android graphics Bitmap.. Bitmap.Config config LOGD creating new bitmap... jclass bitmapCls env FindClass android graphics Bitmap jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring.. jclass bitmapCls env FindClass android graphics Bitmap jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass..
JNI bitmap operations , for helping to avoid OOM when using large images [closed] http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images data was stored. returning null... return NULL creating a new bitmap to put the pixels into it using Bitmap Bitmap.createBitmap int width int height Bitmap.Config config LOGD creating new bitmap... jclass bitmapCls env FindClass android graphics Bitmap.. Bitmap.Config config LOGD creating new bitmap... jclass bitmapCls env FindClass android graphics Bitmap jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring.. jclass bitmapCls env FindClass android graphics Bitmap jmethodID createBitmapFunction env GetStaticMethodID bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass..
Memory efficient image resize in Android http://stackoverflow.com/questions/3219672/memory-efficient-image-resize-in-android float height imgHeight Matrix scale new Matrix scale.postScale scaleFactor scaleFactor final Bitmap scaledImage Bitmap.createBitmap image 0 0 imgWidth imgHeight scale false image.recycle It looks like the OOM happens during the createBitmap . Is there.. Bitmap.createBitmap image 0 0 imgWidth imgHeight scale false image.recycle It looks like the OOM happens during the createBitmap . Is there a more memory efficient way to do this Perhaps something that doesn't require me to load the entire original..
Android: How to rotate a bitmap on a center point http://stackoverflow.com/questions/4166917/android-how-to-rotate-a-bitmap-on-a-center-point centerX centerY mtx.setRotate float direction centerX centerY mtx.postTranslate pivotX pivotY Bitmap rotatedBMP Bitmap.createBitmap bitmap 0 0 spriteWidth spriteHeight mtx true this.bitmap rotatedBMP The weird part is it doesn't matter how I change the.. share improve this question I hope the following sequence of code will help you Bitmap targetBitmap Bitmap.createBitmap targetWidth targetHeight config Canvas canvas new Canvas targetBitmap Matrix matrix new Matrix matrix.setRotate mRotation.. you check the following method from ~frameworks base graphics java android graphics Bitmap.java public static Bitmap createBitmap Bitmap source int x int y int width int height Matrix m boolean filter this would explain what it does with rotation and..
How to save a JPEG image on Android with a custom quality level http://stackoverflow.com/questions/4579647/how-to-save-a-jpeg-image-on-android-with-a-custom-quality-level this question You can store you bitmap as JPEG by calling compress and setting the second parameter Bitmap bm2 createBitmap OutputStream stream new FileOutputStream sdcard test.png Write bitmap to file using JPEG and 80 quality hint for JPEG. bm2.compress..
Android: creating a Bitmap with SurfaceView content http://stackoverflow.com/questions/4742868/android-creating-a-bitmap-with-surfaceview-content improve this question Can you draw your SurfaceView onto a Canvas that's backed by a Bitmap be sure to call the createBitmap that returns a mutable Bitmap Bitmap b Bitmap.createBitmap 100 100 Bitmap.Config.ARGB_8888 Canvas c new Canvas b yourSurfaceView.draw..
Does “Bitmap.createScaledBitmap” convert an 32 bit image into 24 bit? http://stackoverflow.com/questions/6278992/does-bitmap-createscaledbitmap-convert-an-32-bit-image-into-24-bit final float sx dstWidth float width final float sy dstHeight float height m.setScale sx sy Bitmap b Bitmap.createBitmap src 0 0 width height m filter synchronized Bitmap.class do we need to check for null why not just assign everytime if sScaleMatrix.. we need to check for null why not just assign everytime if sScaleMatrix null sScaleMatrix m return b And the call to createBitmap should return your unchanged source bitmap due to this check in the method body if source.isMutable x 0 y 0 width source.getWidth.. But if your bitmap happens to be mutable you effectively skip this check and end up here if m null m.isIdentity bitmap createBitmap neww newh source.hasAlpha Config.ARGB_8888 Config.RGB_565 paint null not needed As you are not performing any scaling your..
Get image Uri + thumbnail of the picture shot with camera in Android http://stackoverflow.com/questions/7257573/get-image-uri-thumbnail-of-the-picture-shot-with-camera-in-android
http://stackoverflow.com/questions/9838518/carousel-library-for-android synchronized int getCount return Global.i11.size non Javadoc @see pl.polidea.coverflow.AbstractCoverFlowImageAdapter#createBitmap int @Override protected Bitmap createBitmap final int position Log.v TAG creating item position final Bitmap bitmap BitmapDrawable.. non Javadoc @see pl.polidea.coverflow.AbstractCoverFlowImageAdapter#createBitmap int @Override protected Bitmap createBitmap final int position Log.v TAG creating item position final Bitmap bitmap BitmapDrawable context.getResources .getDrawable.. float getReflectionGap return reflectionGap non Javadoc @see pl.polidea.coverflow.AbstractCoverFlowImageAdapter#createBitmap int @Override protected Bitmap createBitmap int position this.position position return createReflectedImages linkedAdapter.getItem..
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