I am using MediaStore.Images.Thumbnails.getThumbnail to create bitmap of thumbnail in htc hero , it takes lots of time to execute this. I other device it works faster. Please suggest any alternative to this method to create bitmap thumbnail so speed improves.
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First and foremost, I fully advocate setting your CPU speed (via SetCPU, Gscripts, or otherwise) to 19.2 MHz Minimum, On Demand, across all profiles. This will greatly improve your battery life and you will not see a decrease in performance. (NOTE: Do NOT adjust your CPU minimum to 19.2 MHz if you are running the BFS or CFS kernels.) Now, follow these steps to optimize and calibrate your actual battery: With your phone powered ON, plug it into the charger. Charge until the LED is Green, showing the phone as being fully charged. Disconnect the phone from the charger and power it OFF as quickly as possible. Once the screen and your menu lights are completely dark, showing your phone as being completely OFF, reconnect the phone to the charger. Charge until the LED is Green, showing the phone as being fully charged. Disconnect your phone from the charger. Power your phone ON and, as quickly as possible, power it back OFF. Reconnect your phone to the charger. Once the LED is Green, boot into Recovery by holding Power On + Vol Up simultaneously. In Recovery, go to Wipe > Battery Stats. Go back and Power Off your phone from Recovery. Ensure that your phone is now completely OFF and that the LED is Green. Disconnect your phone and Power On. Use as normal.
View 4 Replies View RelatedI am 1) taking a picture and 2) then draw another Bitmap on top of it 3) then I store it
I am doing it as follows and it works on the emulator.
On the device I get a OutOfMemoryError: bitmap size exceeds VM budget android.graphics.Bitmap.nativeCopy(Native Method) android.graphics.Bitmap.copy(Bitmap.java:199) in the line copy the Bitmap to get a mutable Bitmap.
CODE:...........
What I am asking:
a) Is there a better way to do what I am doing? 1) take a picture 2) draw another Bitmap on top of it 3) then I store it
b) What is the best way to create a mutable Bitmap from the picture I just took with the camera?
In my app, resolution is not an issue. If it works better for small photos that would be fine.
I am having image large size image, at run time i want read image from storage and scale it so that its weight and size will be reduce and i can use it as thumbnail when user click on thumbnail i will display full size image.
View 1 Replies View RelatedI've got thumbnails which larger side is 70px (e.g 70x40 or 52x70).
I need to create a gray box 70x70px and put the thumbnail in it, so that image is aligned with the box at top vertically and center horizontally.
How to do that?
I've tried with an ImageView 70x70px, gray background, but image is not positioned as it should (it's in vertical and horizontal center, instead of vertical top and horizontal center).
I've also tried wrapping it with LinearLayout 70x70px, gray background and then positioning it, but then i get 1 or 2px line between LinearLayout and ImageView. I tried to set padding and margins to 0, but the gray line stays on...
How can i convert a BitmapDrawable into a Bitmap (hopefully it keeps the Alphachannel from the BitmapDrawable)..
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View 2 Replies View RelatedI have an image in .png format in "drawable" folder and need to create Bitmap from it, so can use in public void drawBitmap (Bitmap<http://developer.android.com/reference/android/graphics/Bitmap.html>bitmap, float left, float top, Paint <http://developer.android.com/reference/android/graphics/Paint.html>paint)
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View 2 Replies View RelatedIs it possible to create a byte array from bitmap?How can I do so?
View 3 Replies View RelatedI am trying to build an Android application which can take several photos taken by the camera, and merge them into one giant image. For example, I might take three photos and arrange them in a vertical stack for output as a single image. Ideally, I'd like to be able to keep the images at the original size. Unfortunately, using Bitmap.createBitmap() causes an OutOfMemoryException before even approaching the size of one photo of camera dimensions. Is this possible? Or do I just need to resort to scaling the photos before trying to merge them into a single Bitmap?
View 1 Replies View RelatedI'm trying to create a MapView in a service (live wallpaper), but have it hidden so that I can render it to a Bitmap, and then map it to a texture to render in opengl. I have a Canvas and a Bitmap, and I intended to call myMap.draw(myCanvas) in order to get it into the correct bitmap so that I could then bind it as a texture.
When I Initialize I do the following:
myMap = new MapView(ctx, APPSTATICS.MAP_API_KEY);
I get an error:
java.lang.RuntimeException: stub at com.google.android.maps.MapView.<init> (Unknown Source)
Why I can't create a new mapview which I can use to draw to a offscreen bitmap?
I have a problem - I am writing an application that displays up to 12 images on screen, and moves them around, plus reads touch events. I am using a sample code I found, and it works great. Now I need adding 3D - meaning emulating the objects moving in the Z axis, too (in/out of screen). To do this, I need to resize the images as they move. To test this, I changed the following line in my onDraw (Panel) code: canvas.drawBitmap(bitmap, coords.getX(), coords.getY(), null); to: Bitmap bmpScaled = Bitmap.createScaledBitmap(bitmap, 112, 112, false); canvas.drawBitmap(bmpScaled, coords.getX(), coords.getY(), null); Which works, BUT - movement on screen, plus response to touch events becomes real Jiggly. Checking the log I see that every call to createScaledBitmap causes garbage collection of around 90mS, which causes the total app to respond jiggly. Tried preparing 20 sized bitmaps beforehand, but since that moves the calls to those createScaledBitmap to the beginning of the app - it takes forever to load. Can you think of any workaround or other way to achieve the scaling effect?
View 3 Replies View RelatedI am trying to move my code from Java to C, and I have encountered a problem while trying to find a function in C that can take an array of ints and create a bitmap from it for OpenGL. In Java, I used
bitmap = Bitmap.createBitmap( {int array name} , w, h, Config.RGB_565);
Is there a similar function that I can use in C, or a workaround that I could use?
Also, if it matters, I am programming for Android.
I am banging my head against the wall trying to create a Bitmap from a Path object (android.graphics.Path). Is there any way to do this? I've browsed through most of the classes now but can't seem to find any way to do it.
Actually, what I have is a Path that consists of many cubic Bezier curves. It is really expensive to draw with canvas.drawPath(). So I figured that I could perhaps "cache" the Bitmap of this Path by converting the Path to a Bitmap once and then just drawing the Bitmap every time instead of calling canvas.drawPath().
Is there any way to create a Bitmap from this Path?
Or is there a smarter way to draw tha Path multiple times without having to recalculate all of the Beziers? For example, if I created a ShapeDrawable from PathShape from the Path, and just draw the ShapeDrawable objects every time, would that be more efficient than drawing the Path every time?
How do i create a speed dial icon on my home screen that doesn't ask me to decide if i want to text or call? when I make a favorites list, it still give options. I just want one click and call like my original droid.
View 3 Replies View RelatedHow to load an image file (on SD card) into a Bitmap on Android?
View 1 Replies View RelatedTwo simple questions:
How do you delete bookmarks of the browser? How do you create a pause in the speed dial for voice mail?
I have a very large image and I only want to display a section the size of the display (no scaling), and the section should just be the center of the image. Because the image is very large I cannot read the entire image into memory and then crop it. This is what I have so far but it will give OutOfMemory for large images. Also I don't think inSampleSize applies because I want to crop the image, not lower the resolution.
Uri data = getIntent().getData();
Input Stream is = getContentResolver().openInputStream(data);
Bitmap bitmap = BitmapFactory.decodeStream(is, null, null);
Any help would be great?
Google Play Services update improves multiplayer gaming on Android.
View 13 Replies View RelatedSo I have had my X since 7/20. I have the OTA update. I was reading the X owner's manual and came across recommendations from Motorola to perform a soft reset (i.e. power off and restart) once a day to clear the cache or something like that. I think it was listed under tips to keep phone performance speedy.I have been doing this when i remember, maybe 2 or 3 times a week. The last few days, I noticed my phone had considerably more battery life when I got home from work. I have "smart mode" battery profile. No task killer.Right now I am at 90% battery level, 5 h 40 min since unplugged. I had bluetooth on about an hour, wifi off whole time, about 5 min phone calls and about 10 texts. I have checked e-mail a few times. Pretty light use but I have been busy at work this morning.
View 32 Replies View RelatedI went to drill today and most of the people in my unit has a droid x except one person has a droid 2. Well both did a speed test. He was at 2.4mb and I was at 1.3mb so im confused. We start looking through our settings to compare. He is on max battery saver with all location services on. Im on max performance with no location services on. So I turn on wireless network location services and retest. I get 2.2mb just like that. Does anyone know why it would make a difference? Also I noticed his reception was at- 70db while I was at- 82. Can anyone think of why he would have better reception than me?
View 1 Replies View RelatedI have two questions actually:
Is it better to draw an image on a bitmap or create a bitmap as resource and then draw it over a bitmap? Performance wise... which one is better?
If I want to draw something transparent over a bitmap, how would I go about doing it?
If I want to overlay one transparent bitmap over another, how would I do it?
My goal is the draw a bitmap onto another bitmap but rotated 90 degress. whats the most efficient way to do that. My current method is as follows which is horribly bad because it creates a new bitmap every time.
CODE:.....................
A poster said a week ago that basically putting one finger on the top left of your phone with a second on the lower left corner improves signal strength.
Well it works really well at my job (inside a big building) where I usually hover at 100db but using this method I get about 88-90db and adds 2 bars.
So my question is can I do something (or add something) that will duplicate that effect without having to hold my phone with a couple of fingers?
i'm trying to fetch a thumbnail with picture URI using these code below:
long id = ContentUris.parseId(selectedImageURI); String[] projection = { MediaStore.Images.Thumbnails.DATA }; Cursor c = Images.Thumbnails.queryMiniThumbnail(getContentResolver(), id, Images.Thumbnails.MINI_KIND, projection);
unfortunately, it's always return me the null cursor. finally, i found HTC hero never generate picture thumbnail under "sdcardDCIM.thumbnails", but only create a picture under this folder: "sdcardDCIM100MEDIA", which means i can only get the full size picture. What's am i supposed to do? create a thumbnail by myself?
I tried to create a video thumbnail as described here. I also read the reference here. In my app I first let the user choose a video with: startActivityForResult(new Intent(Intent.ACTION_GET_CONTENT).setType("video/*"), ACTIVITY_PICKVIDEO);
Then I determine the video ID with: fileID = Integer.parseInt(contentUri.getLastPathSegment());
So, the video content://media/external/video/media/5 would have the ID 5...............
I have retrieved some cover art for an album (I have the id and a Bitmap) and now I want to set it into the MediaStore. I tried a bunch of stuff:
private static final Uri ARTWORK_URI = Uri.parse("content://media/external/audio/albumart");
public static void writeArtwork(Context context, Bitmap bmp, int albumId) {
ContentResolver res = context.getContentResolver();
Uri uri = ContentUris.withAppendedId(ARTWORK_URI, albumId);
LogUtil.i(TAG, "uri= " + uri);
if (uri != null) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 50, baos);.............
I am managing a bunch of PDF files in an android application maintaining a list of records in a SQLite database as well as storing the pdf files on the external storage. Now I would like to present a thumbnail of the first page of the pdf in my list view as part of each cell representing a pdf. I am aware of libraries like iText, fop.. on the JavaSE side that can render a PDF but I would rather not delve into embedding a large library like that. On a similar approach I would also rather not embed a native PDF viewer like droidreader, apv or vudroid.
Otherwise I could of course also get it rendered on a server via some webservice but that is a lot of headache as well. I am already using intents to get the pdf's displayed for the user so I was thinking it would be great if I could get a thumbnail via a intent call as a result somehow. However I found nothing on the web (e.g. on openintents) that indicates something like that exists. So I am a bit at a loss on what to do? What do you think is the best approach to get these thumbnails into my app? Are there any public intents available? Or did I just totally miss something and the SDK provides features for that already (it should imho but currently does not)?
I have this Code to Capture a image and Display it back in ListView onclick of the listitem i can capture image and save to image View, but how can get on the left of the list item?
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