This works great for files.I marked the location needing refactoring to get it to work with a bitmap. I can't seem to find a compatible ContentBody for .addPart.The problem I am trying to solve is that I already have the image in an ImageView within an Activity, so rather than read it again from the SD cara, I want to pass it to this method directly.I will probably scale it while I am at it.
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I want to load a bitmap on a GLSurfaceView.. I do it like this: Code...
But the bitmap repeats itself on the surface and is also inverted.. why is this.. How do i make it appear only once...kindly help!
I have a page on which i am displaying image from gallery then i have next page button to move to next activity on that button i am using clearBitmap(); to free memory used by it.
CODE:.............
which gives me error logcat
CODE:.....................
What is more expensive to load in a Gallery, a Bitmap or Drawable???
View 1 Replies View RelatedI am using BitmapFactory.decodeFile to load Bitmaps of images into my application. However, the function returns null on large images (such as those from the camera). The filepath is definitely correct, I just can't figure out why it would return null. I tried supersampling, but it didn't seem to help.
Does anyone have any idea why it would do this or how I could more easily load images taken from the camera into a Bitmap?
Here's the code I am using...
I am trying to use annotation - method.getAnnotation( ) or method.isAnnotationPresent( ) and it is not working. I am using eclipse emulator for 2.1 OS version with JDK 1.6. Following is information about what I did..................
View 4 Replies View RelatedI want to call a bitmap from a method in my main class and am unsure how to do it - I have a method: Code...
So basically, how can I place the bitmap in my detectFaces method in my main class and pass it as a bitmap on my imageview in my false class?
I have a somewhat large (i.e. not fit in most phones' memory) bitmap on disk. I want to draw only parts of it on the screen in a way that isn't scaled (i.e. inSampleSize == 1)
Is there a way to load/draw just the part I want given a Rect specifying the area without loading the entire bitmap content?
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?
View 1 Replies View RelatedI read somewhere (and have observed) that starting threads is slow. I always assumed that AsyncTask created and reused a single thread because it required being started inside the UI thread. The following (anonymized) code is called from a ListAdapter's getView method to load images asynchronously. It works well until the user moves the list quickly, and then it becomes "janky".
final File imageFile = new File(getCacheDir().getPath() + "/img/" + p.image);
image.setVisibility(View.GONE);
view.findViewById(R.id.imageLoading).setVisibility(View.VISIBLE);
(new AsyncTask<Void, Void, Bitmap>() {
@Override
protected Bitmap doInBackground(Void... params) {
try {....
In my android app I call the voice recognition in my onCreate method of my startup activity. I have made it a preference to start up with the voice control or not. However, the app takes about 5-7 seconds to load when voice recognition is on. When it is off, the app starts almost instantly. Below is sample code, I have added Free_Form, max_results 1, and a custom prompt to mine.Why would calling the normal android speech recognition take sooo long to load in my OnCreate method?
View 1 Replies View RelatedDownload and use a program called Android Central Sideload Wonder Machine. It's a one click solution, works amazingly on the Captivate and requires no hassle. The program claims to work on un-rooted phones (though mine is rooted).My girlfriend's Captivate is not rooted though so I will test this out on her phone as well to confirm it. Check it out though. I've already gone to town with this and it works great.
View 5 Replies View RelatedI'm developing an image editor for Android. When I do some operations with small pictures (600x600 - 1024x768), the program work well. But when I do some operations with big pictures, I always obtain an OutOfMemory Error. I read read many post trying to have the image in memory. Also I looked at the Android's Gallery, trying to simulate the effect of loading the image with lower quality and get the complete quality after a while. But I doesn't get to work with large images.
I thought of using the parameter inSampleSize but I raised the problem of having to perform operations on the image and save it with the original size, so it no longer serves me. The only thing I've done is use the parameter inJustDecodeBounds and display an error to the user if the image exceeds the available memory.
Is there any possibility of working with large images with no memory problems? I need urgent help.
I am using the showDialog and dismissDialog methods to show progress dialogs in my app. Moved from creating the dialog and calling show() on it to using this in order to save state when changing orientation.But when I change the orientation from portrait->landscape->portrait, the dismissDialog no longer dismisses the dialog. The dialog stay there all the time and I need to press the back button for it to disappear.
View 2 Replies View RelatedI have an Activity which contains a ListView defined in XML (its not subclassing the List Activity class).I want to display a message when the ListView is empty, so I tried doing so with the setEmptyView method: Code...
View 2 Replies View RelatedAfter updating to Froyo on a Nexus One, the CPU load pie chart graph is no longer displayed when connected with the standalone DDMS. It still shows up for an AVD with 2.1, however.
Is there some setting, something I can turn on/off on the N1 so that DDMS can display its CPU load again? Is this a known change/issue going from 2.1 to 2.2?
This is with the latest SDK (android-8 platform) running under Vista 64bit.
I retrieve Json data (the JSONArray) and I wanted to make a List of all the names in the JSONArray, something like this.
List list = new ArrayList<String>();
for(int i=0;i < data.length();
i++){list.add(data.getJSONObject(i).getString("names").toString());}
And I wanted to take this list in an `ListView' so I did this:
ArrayList<String> test = history_share.list;
names_list = (String[]) test.toArray();
ArrayAdapter<String> adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, names_list);
setListAdapter(adapter);
History_share is one of the method I created to take json data from an api. Eclipse doesn't see any error, and me neither.
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?
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.
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?
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:.....................
For the rest of us peasants who still can't get into that f*@#&$g shell?
View 23 Replies View RelatedEvery single time my boyfriend goes on youtube on 3G, the videos don't load at all...why is that?
It works well on wifi >.
I am using the showDialog and dismissDialog methods to show progress dialogs in my app. Moved from creating the dialog and calling show() on it to using this in order to save state when changing orientation. But when I change the orientation from portrait->landscape->portrait, the dismissDialog no longer dismisses the dialog. The dialog stay there all the time and I need to press the back button for it to disappear.
To overcome this issue, I tried adding a removeDialog in onDestroy so that the dialog is not created/displayed twice and before orientation change, the dialog is removed. Tried adding log statements and see what happens:
05-21 12:35:14.064: DEBUG/MyClass(193): callingShowDialog
05-21 12:35:14.064: DEBUG/MyClass(193): onCreareDialog
05-21 12:35:15.385: DEBUG/MyClass(193): onSaveInstanceState
05-21 12:35:15.415: DEBUG/MyClass(193): onDestroy
05-21 12:35:15.585: DEBUG/MyClass(193): callingShowDialog
05-21 12:35:15.585: DEBUG/MyClass(193): onCreareDialog
05-21 12:35:15.715: DEBUG/MyClass(193): onCreareDialog
05-21 12:35:17.214: DEBUG/MyClass(193): onSaveInstanceState
05-21 12:35:17.214: DEBUG/MyClass(193): onDestroy
05-21 12:35:17.275: ERROR/WindowManager(193): android.view.WindowLeaked: Activity com.android.MyClass has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@43362088 that was originally added here
05-21 12:35:17.395: DEBUG/MyClass(193): callingShowDialog
05-21 12:35:17.395: DEBUG/MyClass(193): onCreareDialog
05-21 12:35:17.475: DEBUG/MyClass(193): onCreareDialog
If we see here, initially when the activity is displayed, the onCreateDialog is called once and on changing the orientation, onSaveInstanceState and onDestroy are called. But after that, onCreateDialog is called twice (once by a call to showDialog which I make, but why the 2nd time?) and this happens every time I change the orientation hence forth.
I am writing automated test cases using Instrumentation. "waitforMonitorWithTimeout" always timesout. If I use waitForMonitor everything is fine. The two lines of code are below. (I comment out one of them when building my test project). Are there known issues with "waitforMonitorWithTimeout"? I have to use the timeout to determine if an event occured (and thus transition to a new activity) or not.
View 2 Replies View RelatedI'm trying to override the onBackPressed() method of the ActivityGroup class:
public class MyClass extends ActivityGroup {
@Override
public void onBackPressed() {
// do something
return;
}
but I'm getting the error The method onBackPressed() of type MyClass must override a superclass method. I'm relatively new to Java, I've seen here that people do it and it works for them Why I'm getting this error? I'm writing an app for android 1.5, could the problem be here?
In Eclipse, when I mouse hover over a built-in method, it displays a method definition including stuff like what the method does, input objects, return objects etc. If I have a yellow line (warning) under the method I'm trying to use, I can't get the mouse-over to show the definition. If I try hitting F3, I get a "The Jar of this class file belongs to container "Android 1.6" How do I show the definition of the method I am using when there is a warning?
View 1 Replies View RelatedI 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.
View 1 Replies View RelatedI have been assigned the task to use an android tablet to run a single app in an enterprise setting. Ideally, when one switches on the tablet this app should be loaded perhaps during startup and the user need not step out of this app. The app logic itself is rather easy but I am wondering if it is at all possible to load a single app during load and not allowing the user to step out of it.
View 2 Replies View RelatedIs it possible to load a layout XML at runtime and load into activity?
In my app, I have various types of data like Person, Company, City, etc; The requirement is to dynamically load the layout, find views by tags (property names like Person.name, Person.address) and then fill in data. For example, if user has selected an object of type Company, we want to load a company.xml layout, inflate it and then associate various properties (company name, company slogan, city, address, revenue) to tagged views. One possibility I see here is - each view in the layout will be associated with property-name as tag and then appropriate data will be loaded in appropriate views.
What should be the best design you would recommend?