For some reason, when I create a bitmap from an image in asset, it does not display fullscreen. When I take an image from drawable, resId, the image shows fullscreen. Why is this?
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Anyone help me to modify the layout params of a child in a ListView in Android.Please give some code snippets if you can.
View 2 Replies View RelatedI am loading a bitmap from a resource like so:
Bitmap mBackground = BitmapFactory.decodeResource(res,R.drawable.image);
What I want to do is make some changes to the bitmap before It gets drawn to the main canvas in my draw method (As it would seem wasteful to repeat lots of drawing in my main loop when it isn't going to change). I am making the changes to the bitmap with the following:
Canvas c = new Canvas(mBackground);
c.drawARGB(...); // etc
So naturally I get an exception
java.lang.IllegalStateException: Immutable bitmap passed to Canvas constructor
So to avoid that I made a copy of the bitmap so that it is mutable
Bitmap mBackground = BitmapFactory.decodeResource(res,R.drawable.image).copy(Bitmap.Config.ARGB_8888, true);
Which avoid the problem however it sometimes causes OutOfMemoryExceptions, do know any better ways of achieving what I want?
I have a bitmap that I want to display in my Android app.This works fine for platforms with version number greater than 1.5 but not for 1.5. When executing the line below an exception is thrown stating that the resource couldn't be found.
Bitmap bmp = BitmapFactory.decodeResource(mApplicationContext.getResources(), R.drawable.arrow);
I have put the bitmap in all density-folders (hdpi, mdpi, ldpi) and scaled them according to the documentation (the mdpi-bitmap is 25x25 pixels and the ldpi-bitmap size 75% of the mdpi-bitmap size and the hdpi-bitmap size 150% of the mdpi-bitmap size).
Any idea what is wrong here?
I have created multiple bitmaps - one for each folder (mdpi, hdpi, ldpi). Can someone show me some code or point me to the appropriate method that will allow me to detect which resource Android decided to load.
View 4 Replies View RelatedHow do I convert a Drawable into a Bitmap?
View 2 Replies View RelatedI am trying to figure out how to do conversion of Picture object generated by web View to Bitmap for later JPEG encoding and saving to local f/s. I tried to create a bitmap from pre created Picture object by BitmapFactory.decode Stream and failed. Seems like Picture object is unrecognized format by Bitmap factory. Just wondering is there any method to do the conversion?
View 6 Replies View RelatedI 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?
I'm trying to convert my LinearLayout to a bitmap so that I can save the current layout content as an image in SD card. First, I create bitmap and canvas and attach the layout to the canvas.
Followed steps from http://www.brighthub.com/mobile/google-android/articles/30676.aspx#comments.
Code to add child view into layout before creating bitmap:
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When I press the save button, it should save the current layout as an image to SD card.
Here are my steps:
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It can create folder in SD card but no file created under this folder. It always gives me FileNotFoundException. I'm not sure it is the file creating problem or the screenBitmap problem.
I want to store image in sqlite database. I tried to store it using BLOB and String, in both cases it store the image and can retrieve it but when i convert it to Bitmap using BitmapFactory.decodeByteArray(...) it return null. Below is my code please have a look and suggest me where i m making mistake.
View 3 Replies View RelatedDoes anyone know how to convert a bitmap to a byte array?
View 2 Replies View RelatedI want to store pictures from the internet in my data base as byte arrays. I get the pictures as bitmaps, but can't find way to convert it to byte array.
View 4 Replies View RelatedHow can i convert a Bitmap image to Drawable.
View 1 Replies View RelatedI have a problem in converting base64 string to bitmap in android. I am using the camera to fetch the image and i am convert the image to base64 string to post to the server. I want to show that image in the imageview so how can i show the image in the ImageView after fetching the image from the camera.
View 1 Replies View RelatedHow can i convert a Bitmap to Drawable.
View 2 Replies View RelatedI 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.
How do I get a bitmap of a webview? I think I can use the capturePicture but how do I then convert that picture object to a bitmap that I can clip and manipulate?
View 2 Replies View RelatedIs there a way to include one resource in another (for example a header design in multiple activities' layouts). I know I can add it at run time, can it be done in the XML?
View 2 Replies View RelatedI'm interested in instantiating a LinearLayout object from an xml file that has a LinearLayout file configuration. I want to do this within a method of my Activity. I tried findViewById() but that returned null. I've made sure that the LinearLayout id is the one I'm passing. Note that this layout isn't part of my screen, it's stand-alone, so I want to build a LinearLayout object from the xml.
View 3 Replies View RelatedThis seems like a simple problem to me, but I can't figure it out. I have a fullscreen layout that displays differently if the screen is taller (854 instead of 800 pixels). I've tried putting the xml into layout-notlong-hdpiand layout-long-dpi respectively, but both my WVGA and FWVGA emulators go for the "long" version (as described in the doc).
Is there any way to distinguish between the two besides using the deprecated -800x480/-854x480 qualifiers?
I have created a custom list item layout just like in this article http://developer.android.com/resources/articles/layout-tricks-efficie....
Each list item has icon, title and summary.
I would like to declare an xml resource that would provide data for that list. Just like you use <string-array> to populate the list using ArrayAdapter<String>.
The simple ArrayAdapter<String> can be populated from:
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I need each <item> to have icon, title and summary. Somewhat similar to:
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I would use <menu> but menu doesn't have summary if I'm not mistaken.
Looking in the android sdk folders, I've found a file called values/config.xml. This seems to be somewhere that you can define values for later use in layouts and animations.
Given the config.xml:
<resources>
<string name="config_somePadding">50dip</string>
</resources>
How would I reference this to use as the layout_height in a layout xml file?
@string/config_somePadding is actually the only one I've found that doesn't throw an error in Eclipse (even though there isn't a config_somePadding in values/strings.xml), but it appears to just put an empty string.
In the sdk, they use an integer for animation duration. They reference it like this: android:duration="@android:integer/config_longAnimTime". Is there a way to use values that aren't integers in the layout_height attribute?
Is it possible use the merge tag in the layout XML for a List item? In particular, when using a SimpleCursorAdapter?
View 6 Replies View RelatedI have a layout I want to reuse, it looks like:
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It is in a file called "reuseme.xml". Now I have an activity layout, which like the following, how can I incorporate the layout above into it?:
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It seems that's possible, but I'm not sure how to use the merge tag to accomplish it?
I need to display a list of categories from a ListActivity. My data source is a ArrayList of type Category which is implementing the android Parcelable interface. stucture is given at the bottom. it has an id and a title
I need title to be displayed as list text and on clicking the list item, i need to get the id for further processing
It is possible to create a new array of 'title's by iterating the category ArrayList and use
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But bu using this method i will get only the title of the category upon click and not the id.
Is it possible to directly use the ArrayList of objects as data source?
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I created a layout xml file that contains an extended textview. What I want is to draw the textview in a bitmap. What do I have to do after inflating the view so that I can use the draw method on the my canvas?
View 2 Replies View RelatedI am new to android development.I wanted to know that Is there any way to convert psd or html to android Xml Layout format ? If yes how can i achieve this and if no, any alternative to that?
View 1 Replies View RelatedI'm trying to convert this 4 XML elements to put them into the java class, but I don't know how to do it.
Code:
<TextView
android:id="@+id/text_route_section_station"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
[code]....
I wish to know how in java I should receive these parameters. I do know how to deliver parameters via adb shell am start command but I still have a problem to get them in java (android) code.
My class extends InstrumentationTestCase and not Activity class!
So I cannot perform: this.getIntent().
I anderstand that I need to create intent doing: Intent intent = new Intent(Intent.someAction);
Can you help me to find out what action should I use here.
I also read that there are secondary attributes: category, type, component, extras. I know that I also need to update the manifest file accordingly. Sorry for so many q/a.
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?