Android : Create Bitmap From Droid.graphics.Path?

Oct 5, 2009

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?

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Android :: Graphics - Path Editor Or SVG Converter

Apr 20, 2010

Anyone know of a graphical editor that will generate a android.graphics.Path? I'm looking for something like inkscape that would generate appropriate commands to generate a android.graphics.Path or some kind of conversion utility that would map SVG to an android.graphics.Path so it can be used for drawing on a canvas...

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Android :: Create Mutable Bitmap From Camera - Draw Another Bitmap On Top - And Save It

Apr 2, 2009

I 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.

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Android : How Might One Create A Large Bitmap In Droid

Aug 10, 2010

I 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?

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Android :: Create New File In Emulator Path / Data

Oct 13, 2010

I want to create a file in emulator android storage path /data/ but it seems I can't create a new file by programs,I should upload an empty file to /data/ and then write the file,an anyone help here? openFile Output("file.txt", MODE_PRIVATE) seems can create a new file in /data/data/Package/files/.but it can't create in path /data/.

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Android :: Create File - Including Folders For Given Path?

Oct 28, 2010

Am downloading a ZipFile from web. where it contain folders and files. Uncompressing them using zipInputstream and zipentry. zipentry.getName giving name of file as "htm/css/aaa.htm". so i am creating New File(zipentry.getName); But problem it throwing an exception File not found. i got that it is creating subfolders htm and css. My question is that , how to create a file including its sub directories , by passing above path?

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Android :: VideoRecording Error - Cannot Create Path To File

Aug 21, 2010

java.lang.IOException, path to file cannot be created. my catch is working by dont know why is isnt being created? Im not sure why im getting this error, i assumed the setOutputFile() would create the file ..

this is my viderecorder class:
package com.sg86.quickrecord;
import java.io.File;
import java.io.IOException;
import android.media.MediaRecorder;
import android.os.Environment;.................

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How To Create SDcard Path In Emulator To Save Recorded File

Oct 1, 2012

i am trying to recording on button click.

mycode is following::
HTML Code:
HTML Code:
private void StartAudioRecording() {

[Code].....

when i was running application in debug mode application getting crash. i am not getting sdcard path .

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Games :: Best Game/graphics Demo To Show Off Android Graphics Engine

Mar 31, 2009

I want to show off how good opengl es can display on my G1. Does anyone know a game with good 3D graphics that I should install for this?

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Android : Want To Create Bitmap From BitmapDrawable?

May 26, 2009

How can i convert a BitmapDrawable into a Bitmap (hopefully it keeps the Alphachannel from the BitmapDrawable)..

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Android : Create Bitmap From Byte[]?

May 4, 2010

How do I create a Bitmap from a byte[]?

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Android : Can I Create Bitmap From An Image (.png)?

Aug 18, 2010

I 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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Android : Need To Create A New File ( To Be Sent ) From A Bitmap

Jul 30, 2010

I have a bitmap "picPrev" which I got from my online server. I want to turn it into a file so I can send it. I was exploring this method. code...

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Android : Way To Create Byte Array From Bitmap?

Jul 20, 2009

Is it possible to create a byte array from bitmap?How can I do so?

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Android :: Cannot Create New Map View To Draw To Off Screen Bitmap

Oct 29, 2010

I'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?

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Android :: How To Create Bitmap Thumbnail So Speed Improves?

Nov 12, 2010

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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Android :: Alternatives To Create Scaled Bitmap When Adding 3D

Dec 4, 2009

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?

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Android : Need To Create Bitmap From Integer Array In C / OpenGL

Nov 29, 2009

I 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.

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Android :: Path To Array / Read Points On Path?

Jul 5, 2010

Is there a way to read the points created when drawing a path? It seems silly to me that a path cannot be readable.Or is it just better to manually write the current finger position to an array?

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Android :: How To Create Bitmap From Image File In Android?

Mar 2, 2010

How to load an image file (on SD card) into a Bitmap on Android?

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Android : Crop Bitmap Without Reading Entire Bitmap / Cannot Read Image Into Memory

Jul 21, 2010

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?

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Android :: Overlay Bitmap - Draw Over A Bitmap

Oct 8, 2009

I 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?

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Android :: Draw A Bitmap Rotated Onto Another Bitmap

Mar 22, 2009

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:.....................

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Android :: Training Session / Course For Droid Graphics API - OpenGL ES?

Sep 25, 2010

Can anyone please recommend a training session/course for Android graphics API/OpenGL ES?

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Android :: Rule Of Thumb When Porting IPhone Graphics To Droid?

Apr 20, 2010

I'd like to port my iPhone app to Android. The interface is constructed with artwork designed for 320x480 resolution. What steps do I need to take when I'm constructing the XML interface for the Android so that my GUI will be compatible with the different screen sizes (or at least the most popular ones...)?

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Android :: Add Files To Java App In Droid So I Can Get It Path?

Apr 30, 2010

I want to add files to java app in android so I'll know their path and can access them.
How can I do it? (It doesn't matter where they will be the most important is that I can access them and I'll know the relative path of the them)

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Android :: Fill A Path In Droid With Linear Gradient?

May 14, 2010

Given a closed Path object result is like this: http://www.tutorialguide.net/images/adobe_photoshop/0043/001.jpg. Although that is a rectangle I'm looking for something which works with any closed Path.

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Android :: Change Droid SharedPreferences Save Path?

Oct 12, 2010

I want to change the android sharedPreferences save path,the sharedPreferences save in /data/data/xxx.xxx.xxx/shared_prefs,i want to change path to /sdcard. how i do?

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Android :: How To Change Droid Database Storage Path

Oct 12, 2010

How do I change the android database storage path? The default path for database storage is / data / data / databases,I want to save it to sdcard, how to do?

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Motorola Droid :: ROM Manager / Path File For Downloading On SD Card

Aug 2, 2010

What is the file path where you should download the ROMs/basebands too on your SD card?

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Motorola Droid :: ROM Manager / (File Name) Path Where Downloads Stored?

May 15, 2010

I installed BBV1 and then installed team chaos' darkedge. Well turns out, the live wallpaper module in the team chaos theme only works with there ROM so I need to push the live wallpaper module from the BB ROM downloaded in ROM manager. So my question is. Whats the path for where ROM manager stores downloads and furthermore, whats the path and filename I need to push to install BB's live wallpapers?

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Android :: Draw Shape Or Bitmap Into Another Bitmap - Java - Android

Jun 22, 2010

I want to draw a shape(many circles particularly) into a Specific Bitmap. I have never used canvas / 2D graphs etc. As i see it i create a Drawable put the bitmap in it then "canvas-it" to the shapes i want etc.

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Android :: Path For Droid Database Files On Ubuntu To Access With SQLite Browser?

Aug 13, 2010

I am trying to find the path for the android database files on Ubuntu 10.4, because I want to access with SQLite Browser. Someone can tell?

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Android : Get RGB Data From Droid Bitmap?

May 15, 2010

Basically I want to capture webpage from webview and get raster data of the bitmap. code...

Issue 1: Out of memmory exception when web page is big for eg. http://times.com What should I do to get this image? Is it possible to get image in multiple bitmaps?

Issue 2: How can i get RGB data 24 bit data from ARGB_8888. I need to get this 24 bit Raster data compress it with some compression and process it...

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Android :: Convert A Bitmap To GrayScale In Droid?

Jul 30, 2010

I am new to this site, and I come with a question about Android.

Is there any way to convert a Bitmap to grayscale? I know how to draw a grayscale bitmap (using canvas operations: http://www.mail-archive.com/android-developers@googlegroups.com/msg38890.html) but I really need The actual bitmap in gray colors (or at least something that could be converted to a bitmap later on).
Do I have to implement it by hand (pixel by pixel operations)?

I've searched a lot, and still could not find. Anyone knows a easy/efficient way to do it?

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Android : Convert A Bitmap To Drawable In Droid

Mar 10, 2010

How can i convert a Bitmap image to Drawable.

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Android :: How To Fill Bitmap Object With Color In Droid?

Jul 17, 2010

I'm working on Android game and there are some problem appear I want to fill a color on bitmap object but can not I tried bitmap.setPixel but my Image is PNG format (like a circle or unsharp, surrounded with transparent color) and android can not getHeight() or getWidth(), ie.

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Android :: Convert Bitmap Image To Drawable In Droid?

Mar 10, 2010

How can i convert a Bitmap to Drawable.

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Android :: Convert A View To Bitmap Without Displaying It In Droid?

May 10, 2010

I will try to explain what exactly I need to do.

I have 3 separate screens say A,B,C. There is another screen called say HomeScreen where all the 3 screens bitmap should be displayed in Gallery view and the user can select in which view does he wants to go.

I have been able to get the Bitmaps of all the 3 screens and display it in Gallery view by placing all the code in HomeScreen Activity only. Now, this has complicated the code a lot and I will like to simplify it.

So, can I call another Activity from HomeScreen and do not display it and just get the Bitmap of that screen. For example, say I just call HomeScreen and it calls Activity A,B,C and none of the Activities from A,B,C are displayed. It just gives the Bitmap of that screen by getDrawingCache(). And then we can display those bitmaps in Gallery view in HomeScreen.

I hope I have explained the problem very clearly.

Please let me know if this is actually possible.

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Android : How To Get Bitmap Uri In Droid Mobile Device Using Java?

Feb 18, 2010

I am implemented this code image upload device only how can retrieve bitmap uri..

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Android : Dump Current Screen To A Bitmap In Droid?

Jun 3, 2010

Is there way to dump the current screen to a bitmap in Android?

And what about dump screen of other applications? For example, running a service background, the foreground app could send an intent to start the service, and capture the current screen and save as a bitmap.

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Android :: How To Save / Load Images From Droid Gallery As Bitmap?

Jul 24, 2010

I am a beginner Android developer and I need to know how to Save and Load images (Bitmaps) from the Android Gallery, But I dont even know where to start! Can someone help me to know where to get started, or even look?

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Android :: Steps To Display Bitmap Class Object In Droid Without Using XML?

Jul 6, 2010

I am trying to display an bitmap I created in and android program, but all the tutorials I find involve either Drawables or XML in order to display them. Can someone show me the steps needed to display an Bitmap in code?

This is not the entirety of the code, this is just the majority, the rest is related to getting the camera working. code...

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Android :: Graphics

Feb 26, 2010

I have rectangle white box. on cliking the rectangle I will draw a toolbar beneath the box and also call relayout to accomodate the toolbar ( size+100) ( i used surfaceview and in secondary thread i draw the toolbar) on click again on rectangle box it will disappear the toolbar and also has to resize the layout to original size (ie size-100) this is where I get stuck. I can disappear the toolbar however I cant call relayout either from secondary thread (says cant call from secondary thread). So I created a while loop in onlayout( this is where i create a thread to draw the toolbar) if i call requestlayout after while loop ends it doesnt do anything it doesnt call onmeasure etc.

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Android :: 2d Graphics

Jan 14, 2010

I created a 2d game in java that runs as an applet, and i am now trying to translate this over to the android. As the android doesnt used paint() methods, i am thinking that i will have to import images of the game instead of drawing it, but i cannot find out how to do this. Anybody know how to add images to the folder and call them in the app? Also, how can i call a screen repaint() in the android?

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