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2014/10/16 ¤W¤È 08:27:06
android Programming Glossary: usedjava.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android all the time Do I have to clean the layout or the images used in the layout in a special way android memory memory leaks..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon general public it is a business app that is going to be used in a very narrow business field. I was actually really looking.. like that in Android then I think that android cant be used for writing real apps Then neither can Web apps. Or WebOS if..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android in Android I would like to know how I can find the memory used on my Android application programmatically. I hope there is.. for dalvik. public int dalvikPss The private dirty pages used by dalvik. public int dalvikPrivateDirty The shared dirty pages.. public int dalvikPrivateDirty The shared dirty pages used by dalvik. public int dalvikSharedDirty The proportional set..
How to pick an image from gallery (SD Card) for my app in Android? http://stackoverflow.com/questions/2507898/how-to-pick-an-image-from-gallery-sd-card-for-my-app-in-android photo was taken though many of the fields aren't actually used. To save time as you don't actually need the other fields cursor.. the number of the column based on its name the same one used in the filtering process. Once you've got that you're finally..
How can I get zoom functionality for images? http://stackoverflow.com/questions/2537238/how-can-i-get-zoom-functionality-for-images Place TouchImageView.java in your project. It can then be used the same as ImageView. Example TouchImageView img TouchImageView..
How to programatically take a screenshot on Android? http://stackoverflow.com/questions/2661536/how-to-programatically-take-a-screenshot-on-android that allowed my screen shot to be stored on sd card and used later for whatever your needs are image naming and path to include..
Download a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog break A GroundyTask implementation used by Groundy to download the file and show the progress public.. system. First let's see a utility method @param context used to check the device version and DownloadManager information..
Activity restart on rotation Android http://stackoverflow.com/questions/456211/activity-restart-on-rotation-android class in the manifest for it to be registered and used. Reacting to Configuration Changes As a further alternative..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds TextView use to wrap the text Couldn't those be somehow used to predict whether text will be small enough tl dr is there.. final int after mNeedsResize true Since this view may be reused it is good to reset the text size resetTextSize If the text..
Android Understanding Heap Sizes http://stackoverflow.com/questions/10677850/android-understanding-heap-sizes ID 1 Heap Size 6.133 MB Allocated 2.895MB Free 3.238 MB Used 47.20 # Objects 52 623. This is where I dont understand what's..
SwipeyTabs - how to create Swipey Tabs using ActionBarSherlock Library? http://stackoverflow.com/questions/10912602/swipeytabs-how-to-create-swipey-tabs-using-actionbarsherlock-library Bundle savedInstanceState setTheme SampleList.THEME Used for theme switching in samples super.onCreate savedInstanceState..
This Handler class should be static or leaks might occur: IncomingHandler http://stackoverflow.com/questions/11407943/this-handler-class-should-be-static-or-leaks-might-occur-incominghandler WorkerThread to service. private Handler mServiceHandler Used to receive messages from the Activity final Messenger inMessenger..
Call to `getDrawingCache` returns null when scroll is enabled http://stackoverflow.com/questions/11560882/call-to-getdrawingcache-returns-null-when-scroll-is-enabled
Android: BitmapFactory.decodeStream() out of memory with a 400KB file with 2MB free heap http://stackoverflow.com/questions/11820266/android-bitmapfactory-decodestream-out-of-memory-with-a-400kb-file-with-2mb-f heap Heap Size 5.254 MB Allocated 2.647 MB Free 2.607 MB Used 50.38 #Objects 49 028 Single stepping over this line results..
Proper use cases for Android UserManager.isUserAGoat()? http://stackoverflow.com/questions/13375357/proper-use-cases-for-android-usermanager-isuseragoat across the following method public boolean isUserAGoat Used to determine whether the user making this call is subject to.. source it looks like the method returns false all the time Used to determine whether the user making this call is subject to..
dynamically add and remove view to viewpager http://stackoverflow.com/questions/13664155/dynamically-add-and-remove-view-to-viewpager private ArrayList View views new ArrayList View Used by ViewPager. Object represents the page tell the ViewPager.. if index 1 return POSITION_NONE else return index Used by ViewPager. Called when ViewPager needs a page to display.. v views.get position container.addView v return v Used by ViewPager. Called when ViewPager no longer needs a page to..
Android LocationManager.getLastKnownLocation() returns null http://stackoverflow.com/questions/1608632/android-locationmanager-getlastknownlocation-returns-null you need a geo fix to proceed further.Location Listener is Used for receiving notifications from the LocationManager when the..
Android: OutofMemoryError: bitmap size exceeds VM budget with no reason I can see http://stackoverflow.com/questions/3037027/android-outofmemoryerror-bitmap-size-exceeds-vm-budget-with-no-reason-i-can-se after the crash DDMS shows ID Heap Size Allocated Free Used #Objects 1 11.195 MB 2.428 MB 8.767 MB 21.69 47 156 And in the..
Android Out of Memory error with Lazy Load images http://stackoverflow.com/questions/5082703/android-out-of-memory-error-with-lazy-load-images to exit PhotosLoader photoLoaderThread new PhotosLoader Used to display bitmap in the UI thread class BitmapDisplayer implements.. to exit PhotosLoader photoLoaderThread new PhotosLoader Used to display bitmap in the UI thread class BitmapDisplayer implements..
Swipe/Fling tab-changing in conjunction with ScrollView? http://stackoverflow.com/questions/5102993/swipe-fling-tab-changing-in-conjunction-with-scrollview the onTouchEvent is handled by the ScrollView @Override Used for swipe gestures public boolean onTouchEvent MotionEvent event..
Does a replacement for Gallery widget with View recycling exist? http://stackoverflow.com/questions/5789879/does-a-replacement-for-gallery-widget-with-view-recycling-exist on item type and the amount of that type required Gallery Used reflection ugh to modify the private mGroupFlags variable of..
Usage CursorLoader without ContentProvider http://stackoverflow.com/questions/7182485/usage-cursorloader-without-contentprovider import android.support.v4.content.AsyncTaskLoader Used to write apps that run on platforms prior to Android 3.0. When..
http://stackoverflow.com/questions/7447350/android-maps-point-clustering scrach. Now available at GitHub Code Reworked from scratch Used GVM clustering algorithm pretty fast but doesn't position clustered..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android Should I put them in static methods so they are not loaded all the time Do I have to clean the layout or the images used in the layout in a special way android memory memory leaks leak share improve this question It sounds like you have..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon Android Market. It is not an application for wide use by the general public it is a business app that is going to be used in a very narrow business field. I was actually really looking forward to developing for the Android platform since it addresses.. it never ever any other way. If you cant write apps that behave like that in Android then I think that android cant be used for writing real apps Then neither can Web apps. Or WebOS if I understand their model correctly haven't had a chance to..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android to discover memory usage of my application in Android I would like to know how I can find the memory used on my Android application programmatically. I hope there is a way to do it. Plus I would like to understand how to get the.. structure with all of this data The proportional set size for dalvik. public int dalvikPss The private dirty pages used by dalvik. public int dalvikPrivateDirty The shared dirty pages used by dalvik. public int dalvikSharedDirty The proportional.. public int dalvikPss The private dirty pages used by dalvik. public int dalvikPrivateDirty The shared dirty pages used by dalvik. public int dalvikSharedDirty The proportional set size for the native heap. public int nativePss The private..
How to pick an image from gallery (SD Card) for my app in Android? http://stackoverflow.com/questions/2507898/how-to-pick-an-image-from-gallery-sd-card-for-my-app-in-android to 'date last modified' to the GPS coordinates of where the photo was taken though many of the fields aren't actually used. To save time as you don't actually need the other fields cursor search is done with a filter. The filter works by specifying.. it's in until you use the columnIndex code. That simply gets the number of the column based on its name the same one used in the filtering process. Once you've got that you're finally able to decode the image into a bitmap with the last line..
How can I get zoom functionality for images? http://stackoverflow.com/questions/2537238/how-can-i-get-zoom-functionality-for-images check out the github project to get the latest code. USAGE Place TouchImageView.java in your project. It can then be used the same as ImageView. Example TouchImageView img TouchImageView findViewById R.id.img If you are using TouchImageView in..
How to programatically take a screenshot on Android? http://stackoverflow.com/questions/2661536/how-to-programatically-take-a-screenshot-on-android similar to use for sharing with social media. Here is the code that allowed my screen shot to be stored on sd card and used later for whatever your needs are image naming and path to include sd card appending name you choose for file String mPath..
Download a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog Groundy.KEY_ERROR Toast.LENGTH_LONG .show mProgressDialog.dismiss break A GroundyTask implementation used by Groundy to download the file and show the progress public class DownloadTask extends GroundyTask public static final.. you to download files easily and delegate the hard work to the system. First let's see a utility method @param context used to check the device version and DownloadManager information @return true if the download manager is available public static..
Activity restart on rotation Android http://stackoverflow.com/questions/456211/activity-restart-on-rotation-android NOTE You'll need to specify the name of your new Application class in the manifest for it to be registered and used. Reacting to Configuration Changes As a further alternative you can have your application listen for events that would cause..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds until a suitably small size has been found. What routines does TextView use to wrap the text Couldn't those be somehow used to predict whether text will be small enough tl dr is there a best practice way to auto resize a textview to fit wrapped.. final CharSequence text final int start final int before final int after mNeedsResize true Since this view may be reused it is good to reset the text size resetTextSize If the text view size changed set the force resize flag to true @Override..
Android Understanding Heap Sizes http://stackoverflow.com/questions/10677850/android-understanding-heap-sizes I click Cause GC on my DDMS screen and the results are ID 1 Heap Size 6.133 MB Allocated 2.895MB Free 3.238 MB Used 47.20 # Objects 52 623. This is where I dont understand what's happening my emulator is set to 24MB of VM. Where is that..
SwipeyTabs - how to create Swipey Tabs using ActionBarSherlock Library? http://stackoverflow.com/questions/10912602/swipeytabs-how-to-create-swipey-tabs-using-actionbarsherlock-library method of my activity class @Override protected void onCreate Bundle savedInstanceState setTheme SampleList.THEME Used for theme switching in samples super.onCreate savedInstanceState setContentView R.layout.fragment_tabs mTabHost TabHost..
This Handler class should be static or leaks might occur: IncomingHandler http://stackoverflow.com/questions/11407943/this-handler-class-should-be-static-or-leaks-might-occur-incominghandler UDPListenerThread myThread Handler to communicate from WorkerThread to service. private Handler mServiceHandler Used to receive messages from the Activity final Messenger inMessenger new Messenger new IncomingHandler Use to send message..
Call to `getDrawingCache` returns null when scroll is enabled http://stackoverflow.com/questions/11560882/call-to-getdrawingcache-returns-null-when-scroll-is-enabled
Android: BitmapFactory.decodeStream() out of memory with a 400KB file with 2MB free heap http://stackoverflow.com/questions/11820266/android-bitmapfactory-decodestream-out-of-memory-with-a-400kb-file-with-2mb-f 116ms DDMS reports a similar picture about the state of the heap Heap Size 5.254 MB Allocated 2.647 MB Free 2.607 MB Used 50.38 #Objects 49 028 Single stepping over this line results in an OOM error 08 05 21 26 04.783 D dalvikvm 2319 GC_EXTERNAL_ALLOC..
Proper use cases for Android UserManager.isUserAGoat()? http://stackoverflow.com/questions/13375357/proper-use-cases-for-android-usermanager-isuseragoat in Android 4.2 . While looking at the UserManager class I came across the following method public boolean isUserAGoat Used to determine whether the user making this call is subject to teleportations. Returns whether the user making this call is.. java android api share improve this question From their source it looks like the method returns false all the time Used to determine whether the user making this call is subject to teleportations. @return whether the user making this call is..
dynamically add and remove view to viewpager http://stackoverflow.com/questions/13664155/dynamically-add-and-remove-view-to-viewpager all the currently displayable views in order from left to right. private ArrayList View views new ArrayList View Used by ViewPager. Object represents the page tell the ViewPager where the page should be displayed from left to right. If the.. getItemPosition Object object int index views.indexOf object if index 1 return POSITION_NONE else return index Used by ViewPager. Called when ViewPager needs a page to display it is our job to add the page to the container which is normally.. Object instantiateItem ViewGroup container int position View v views.get position container.addView v return v Used by ViewPager. Called when ViewPager no longer needs a page to display it is our job to remove the page from the container..
Android LocationManager.getLastKnownLocation() returns null http://stackoverflow.com/questions/1608632/android-locationmanager-getlastknownlocation-returns-null use Location Listener it would be ideal in your case since you need a geo fix to proceed further.Location Listener is Used for receiving notifications from the LocationManager when the location has changed. You can unregister the listener after..
Android: OutofMemoryError: bitmap size exceeds VM budget with no reason I can see http://stackoverflow.com/questions/3037027/android-outofmemoryerror-bitmap-size-exceeds-vm-budget-with-no-reason-i-can-se Now I am using DDMS. Just before the crash does not change much after the crash DDMS shows ID Heap Size Allocated Free Used #Objects 1 11.195 MB 2.428 MB 8.767 MB 21.69 47 156 And in the detail table it shows Type Count Total Size Smallest Largest..
Android Out of Memory error with Lazy Load images http://stackoverflow.com/questions/5082703/android-out-of-memory-error-with-lazy-load-images break catch InterruptedException e allow thread to exit PhotosLoader photoLoaderThread new PhotosLoader Used to display bitmap in the UI thread class BitmapDisplayer implements Runnable Bitmap bitmap ImageView imageView public BitmapDisplayer.. break catch InterruptedException e allow thread to exit PhotosLoader photoLoaderThread new PhotosLoader Used to display bitmap in the UI thread class BitmapDisplayer implements Runnable SoftReference Bitmap bitmap ImageView imageView..
Swipe/Fling tab-changing in conjunction with ScrollView? http://stackoverflow.com/questions/5102993/swipe-fling-tab-changing-in-conjunction-with-scrollview ensure both are checked My onTouchEvent which is not hit when the onTouchEvent is handled by the ScrollView @Override Used for swipe gestures public boolean onTouchEvent MotionEvent event if gestureDetector.onTouchEvent event return true else..
Does a replacement for Gallery widget with View recycling exist? http://stackoverflow.com/questions/5789879/does-a-replacement-for-gallery-widget-with-view-recycling-exist of item if not you'll need to add some sort of key based on item type and the amount of that type required Gallery Used reflection ugh to modify the private mGroupFlags variable of ViewGroup to allow child re ordering I also set a boolean value..
Usage CursorLoader without ContentProvider http://stackoverflow.com/questions/7182485/usage-cursorloader-without-contentprovider import android.content.Context import android.database.Cursor import android.support.v4.content.AsyncTaskLoader Used to write apps that run on platforms prior to Android 3.0. When running on Android 3.0 or above this implementation is still..
http://stackoverflow.com/questions/7447350/android-maps-point-clustering renders only the visible poins. UPDATE Code reworked from scrach. Now available at GitHub Code Reworked from scratch Used GVM clustering algorithm pretty fast but doesn't position clustered point as good as mine Soon to add previous clustering..
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