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2014/10/16 ¤W¤È 08:27:07
android Programming Glossary: usefulbitmap size exceeds Vm budget error android http://stackoverflow.com/questions/10737582/bitmap-size-exceeds-vm-budget-error-android getting around android memory blues The above link is very useful for your problem. Now the OOME occurs when there is memory leak.. but as you go through it you will understand its pretty useful software. Even if this doesn't solves your problem use the WeakReference..
android ellipsize multiline textview http://stackoverflow.com/questions/2160619/android-ellipsize-multiline-textview you when the text becomes ellipsized which I found quite useful myself. import java.util.ArrayList import java.util.List import..
How to emulate GPS location in the Android Emulator? http://stackoverflow.com/questions/2279647/how-to-emulate-gps-location-in-the-android-emulator geo fix longitude value latitude value I found this site useful for finding a realistic lat lng http itouchmap.com latlong.html..
How to have Android Service communicate with Activity http://stackoverflow.com/questions/2463175/how-to-have-android-service-communicate-with-activity context will leak not good. NOTE This method is only useful when your application Activity task is the only process that..
How to scale an Image in ImageView to keep the aspect ratio http://stackoverflow.com/questions/2521959/how-to-scale-an-image-in-imageview-to-keep-the-aspect-ratio and a source at the same time though which can be useful for things like displaying a frame around the main image using..
Declaring a custom android UI element using XML http://stackoverflow.com/questions/2695646/declaring-a-custom-android-ui-element-using-xml as being to view all these constants in the one place is useful. 3. Use it in a layout files such as layout main.xml Include..
Detect network connection type on Android http://stackoverflow.com/questions/2802472/detect-network-connection-type-on-android I thought I would share it with others that might find it useful. Here is a Gist of the class so you can fork it and edited it...
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 connection.getResponseMessage this will be useful to display download percentage might be 1 server did not report.. url.openConnection connection.connect this will be useful so that you can show a typical 0 100 progress bar int fileLength.. doing something like that in your app it could be really useful. 3. Use DownloadManager class GingerBread and newer only This..
Android: out of memory exception in Gallery http://stackoverflow.com/questions/3238388/android-out-of-memory-exception-in-gallery does not appear to show all my app's objects Here's also a useful slide by Romain Guy Android Framework engineer about soft references..
Background task, progress dialog, orientation change - is there any 100% working solution? http://stackoverflow.com/questions/3821423/background-task-progress-dialog-orientation-change-is-there-any-100-working your work into an IntentService . This is particularly useful if the work to be done may be long and should go on regardless..
Programmatically register a broadcast receiver http://stackoverflow.com/questions/4805269/programmatically-register-a-broadcast-receiver use registerReceiver . A receiver component is primarily useful for when you need to make sure your app is launched every time..
How can I use the animation framework inside the canvas? http://stackoverflow.com/questions/4938822/how-can-i-use-the-animation-framework-inside-the-canvas example of bouncing ball which rotates which you may find useful. import android.app.Activity import android.content.Context..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds view. I will post the code here and hopefully it will be useful for someone else. This class uses a static layout with the text..
What work has been done on cross-platform mobile development? [closed] http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development
How to Consume WCF Service with Android http://stackoverflow.com/questions/669764/how-to-consume-wcf-service-with-android code. There is a tool called Fiddler that can be really useful for debugging web services. POST LoginService HTTP 1.1 Content..
Update data in ListFragment as part of ViewPager http://stackoverflow.com/questions/7379165/update-data-in-listfragment-as-part-of-viewpager in the ListFragment layout but I don't think these are useful. So how can I either a update the entire viewpager safely in..
Android accelerometer accuracy (Inertial navigation) http://stackoverflow.com/questions/7829097/android-accelerometer-accuracy-inertial-navigation too. As for indoor positioning I have found these useful RSSI Based Indoor Localization and Tracking Using Sigma Point..
bitmap size exceeds Vm budget error android http://stackoverflow.com/questions/10737582/bitmap-size-exceeds-vm-budget-error-android amazing doc on memory leak issue http codelog.dexetra.com getting around android memory blues The above link is very useful for your problem. Now the OOME occurs when there is memory leak in your app. so to check that please install the MAT for.. mat downloads.php Its a bit complicated software but as you go through it you will understand its pretty useful software. Even if this doesn't solves your problem use the WeakReference for bitmaps. Please refer this link How to use..
android ellipsize multiline textview http://stackoverflow.com/questions/2160619/android-ellipsize-multiline-textview if you would prefer. Note that there is a listener to notify you when the text becomes ellipsized which I found quite useful myself. import java.util.ArrayList import java.util.List import android.content.Context import android.graphics.Canvas import..
How to emulate GPS location in the Android Emulator? http://stackoverflow.com/questions/2279647/how-to-emulate-gps-location-in-the-android-emulator instructions. The specific command to run in the console is geo fix longitude value latitude value I found this site useful for finding a realistic lat lng http itouchmap.com latlong.html If you need more then one coordinate you can use a kml file..
How to have Android Service communicate with Activity http://stackoverflow.com/questions/2463175/how-to-have-android-service-communicate-with-activity object in Activity.onPause otherwise an instance of your activity context will leak not good. NOTE This method is only useful when your application Activity task is the only process that will access your service. If this is not the case you have..
How to scale an Image in ImageView to keep the aspect ratio http://stackoverflow.com/questions/2521959/how-to-scale-an-image-in-imageview-to-keep-the-aspect-ratio fit exactly to the size of the ImageView. You can use a background and a source at the same time though which can be useful for things like displaying a frame around the main image using just one ImageView. 2 This comment was edited significantly..
Declaring a custom android UI element using XML http://stackoverflow.com/questions/2695646/declaring-a-custom-android-ui-element-using-xml it may change in the future. It is still in the documentation as being to view all these constants in the one place is useful. 3. Use it in a layout files such as layout main.xml Include the namespace declaration xmlns app http schemas.android.com..
Detect network connection type on Android http://stackoverflow.com/questions/2802472/detect-network-connection-type-on-android to research and write this class to do just exactly that and I thought I would share it with others that might find it useful. Here is a Gist of the class so you can fork it and edited it. package com.emil.android.util import android.content.Context..
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 return Server returned HTTP connection.getResponseCode connection.getResponseMessage this will be useful to display download percentage might be 1 server did not report the length int fileLength connection.getContentLength.. try URL url new URL urlToDownload URLConnection connection url.openConnection connection.connect this will be useful so that you can show a typical 0 100 progress bar int fileLength connection.getContentLength download the file InputStream.. service and post results to the UI with easily. If you are doing something like that in your app it could be really useful. 3. Use DownloadManager class GingerBread and newer only This method is awesome you do not have to worry about downloading..
Android: out of memory exception in Gallery http://stackoverflow.com/questions/3238388/android-out-of-memory-exception-in-gallery this topic on here. Bitmaps in Android Android Eclipse MAT does not appear to show all my app's objects Here's also a useful slide by Romain Guy Android Framework engineer about soft references weak references simple caches image handling http docs.huihoo.com..
Background task, progress dialog, orientation change - is there any 100% working solution? http://stackoverflow.com/questions/3821423/background-task-progress-dialog-orientation-change-is-there-any-100-working technique. Another approach is to ditch the AsyncTask and move your work into an IntentService . This is particularly useful if the work to be done may be long and should go on regardless of what the user does in terms of activities e.g. downloading..
Programmatically register a broadcast receiver http://stackoverflow.com/questions/4805269/programmatically-register-a-broadcast-receiver
How can I use the animation framework inside the canvas? http://stackoverflow.com/questions/4938822/how-can-i-use-the-animation-framework-inside-the-canvas you have to draw your animation frame by frame. Here is an example of bouncing ball which rotates which you may find useful. import android.app.Activity import android.content.Context import android.graphics.Bitmap import android.graphics.BitmapFactory..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds better half of my weekend and created my own auto resize text view. I will post the code here and hopefully it will be useful for someone else. This class uses a static layout with the text paint of the original text view to measure the height. From..
What work has been done on cross-platform mobile development? [closed] http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development
How to Consume WCF Service with Android http://stackoverflow.com/questions/669764/how-to-consume-wcf-service-with-android example of what the HTTP POST should look like from the Java code. There is a tool called Fiddler that can be really useful for debugging web services. POST LoginService HTTP 1.1 Content Type text xml charset utf 8 SOAPAction http mycompany.com..
Update data in ListFragment as part of ViewPager http://stackoverflow.com/questions/7379165/update-data-in-listfragment-as-part-of-viewpager for ViewPager and a android id @android id list for my ListView in the ListFragment layout but I don't think these are useful. So how can I either a update the entire viewpager safely in one go ideally returning the user to the page he was on before..
Android accelerometer accuracy (Inertial navigation) http://stackoverflow.com/questions/7829097/android-accelerometer-accuracy-inertial-navigation 6.2.3 Propagation of Errors. By the way you will need the gyroscopes too. As for indoor positioning I have found these useful RSSI Based Indoor Localization and Tracking Using Sigma Point Kalman Smoothers Pedestrian Tracking with Shoe Mounted Inertial..
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