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2014/10/16 ¤W¤È 08:19:20
android Programming Glossary: mightAndroid - what's the difference between the various methods to get a Context? http://stackoverflow.com/questions/1026973/android-whats-the-difference-between-the-various-methods-to-get-a-context Pointers to documentation on this and guidance about what might break if the wrong one is chosen would be much appreciated... tells about the difference between the two and when you might want to consider using the application Context Activity.getApplicationContext..
http://stackoverflow.com/questions/1080811/android-endless-list threads for long running actions like loading web data and might want to indicate progress in the last list item like the market..
http://stackoverflow.com/questions/1106202/android-ocr improve this question OCR can be pretty CPU intensive you might want to reconsider doing it on a smart phone. That aside to.. its not insane C so depending on how badly you need OCR it might be worth the time. So short answer No. Long answer if you're..
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 Handler class should be static or leaks might occur IncomingHandler I'm developing an Android 2.3.3 application.. Lint warning This Handler class should be static or leaks might occur IncomingHandler What does it mean android memory leaks..
Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4) http://stackoverflow.com/questions/14452808/sending-and-receiving-sms-and-mms-in-android-pre-kit-kat-android-4-4 can hang a lot even when turning on Mobile Data and might require a reboot of the device. And GO Through this code http..
Saving Activity state in Android http://stackoverflow.com/questions/151777/saving-activity-state-in-android mTextView private TextView mTextView null I thought that might be all one needed to do for the simplest case but it always..
How to check internet access on Android? InetAddress never timeouts http://stackoverflow.com/questions/1560788/how-to-check-internet-access-on-android-inetaddress-never-timeouts a network connection at the given point in time then it might be better to use netInfo.isConnected rather than netInfo.isConnectedOrConnecting..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android at your code. However this article has some tips that might help http android developers.blogspot.de 2009 01 avoiding memory.. variables is likely to make things worse not better. You might need to add code that removes callbacks when your application..
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 this will be useful to display download percentage might be 1 server did not report the length int fileLength connection.getContentLength..
creating a system overlay (always on top) button in android http://stackoverflow.com/questions/4481226/creating-a-system-overlay-always-on-top-button-in-android overlay android ui share improve this question This might be a stupid solution. But it works. If you can improve it please..
Android and XMPP: Currently available solutions http://stackoverflow.com/questions/4769020/android-and-xmpp-currently-available-solutions official Smack API and after a little research it seems it might work just fine nowadays although I have not tried it yet in..
How to ship an Android application with a database? http://stackoverflow.com/questions/513084/how-to-ship-an-android-application-with-a-database The drawbacks I see 1 Possible sqlite version mismatches might cause problems and I currently don't know where the database..
How do I obtain crash-data from my Android application? http://stackoverflow.com/questions/601503/how-do-i-obtain-crash-data-from-my-android-application crash stack trace share improve this question You might try the ACRA Application Crash Report for Android library ACRA..
Getting an issue while checking the dynamically generated checkbox through list view http://stackoverflow.com/questions/7738527/getting-an-issue-while-checking-the-dynamically-generated-checkbox-through-list Here's the actual idea and process of recycling so you might figure out what is wrong with your implementation and idea of.. You set the visual state for the item. Everything which might change individually for an item text checkbox state colors etc..
Android accelerometer accuracy (Inertial navigation) http://stackoverflow.com/questions/7829097/android-accelerometer-accuracy-inertial-navigation 10 on each axis . I realise without seeing my code this might be difficult to answer but in a more general sense... Is this..
http://stackoverflow.com/questions/9671546/asynctask-android-example R.id.output txt.setText Executed txt.setText result might want to change executed for the returned string passed into..
http://stackoverflow.com/questions/10722178/android-implementing-ussd-features-binding-a-service-to-the-phoneutils-withou the service. What i would like to know is the following Might there be away to make the PhoneUtils bind to my service without..
Android Open and Save files to/from Google Drive SDK http://stackoverflow.com/questions/12164024/android-open-and-save-files-to-from-google-drive-sdk return Not sure why... I wrote it here for some reason. Might not actually be necessary. catch OperationCanceledException..
What is correct xmlns url for AdMob in Android Layout XML http://stackoverflow.com/questions/2020542/what-is-correct-xmlns-url-for-admob-in-android-layout-xml android testing sdk admob share improve this question Might be worth checking that the error isn't due to something outside..
adb cannot find my device for Android debugging. Why? http://stackoverflow.com/questions/2271008/adb-cannot-find-my-device-for-android-debugging-why java android debugging share improve this question Might be faster just to restart the adb server adb kill server adb..
Android Video Capture Sample App http://stackoverflow.com/questions/2550743/android-video-capture-sample-app
Check if directory exist on android's sdcard http://stackoverflow.com/questions/2625419/check-if-directory-exist-on-androids-sdcard somedir if f.isDirectory .... Might also want to check f.exists because if it exists and isDirectory..
http://stackoverflow.com/questions/3567312/android-drop-shadow-on-view originalBitmap.extractAlpha shadowPaint offsetXY Might need to convert shadowImage from 8 bit to ARGB here can't remember...
How to find out the running/start time of android application? http://stackoverflow.com/questions/3677229/how-to-find-out-the-running-start-time-of-android-application and the just subtract that with the currenttime. Might not be the best way but that's what came to mind. And I haven't..
Android: Trying to start BluetoothSettings activity Force Close with NullPointerException http://stackoverflow.com/questions/4224450/android-trying-to-start-bluetoothsettings-activity-force-close-with-nullpointer and issue it the same effect with NullPointerException. Might be the wrongs names of the extras I prepare So is there a way..
What do GC_FOR_MALLOC, GC_EXPLICIT, and other GC_* mean in Android Logcat? http://stackoverflow.com/questions/4976566/what-do-gc-for-malloc-gc-explicit-and-other-gc-mean-in-android-logcat enough memory left on the heap to perform an allocation. Might be triggered when new objects are being created. GC_EXPLICIT..
Android:How to add a button in surface view http://stackoverflow.com/questions/5779215/androidhow-to-add-a-button-in-surface-view below the surface view so they get drawn on top of it. Might be a good idea to bundle them in another Layout and add that..
Creating a custom layout for preferences http://stackoverflow.com/questions/6194116/creating-a-custom-layout-for-preferences in your Activity code and attach a listener to the button. Might have to do some more work if you have multiple buttons in the..
Performing login to https website via Android app http://stackoverflow.com/questions/6443401/performing-login-to-https-website-via-android-app url .. you need httpsclient to make request to https urls. Might below code is of help to you public DefaultHttpClient getClient..
what is keycharmap file? why am i getting 'cant open keycharmap file' warning? http://stackoverflow.com/questions/9029782/what-is-keycharmap-file-why-am-i-getting-cant-open-keycharmap-file-warning p alogcat issues detail id 19 which might be related. Might be worth checking to see if the error is logged when running..
Android - what's the difference between the various methods to get a Context? http://stackoverflow.com/questions/1026973/android-whats-the-difference-between-the-various-methods-to-get-a-context and under what circumstances which should be used. Pointers to documentation on this and guidance about what might break if the wrong one is chosen would be much appreciated. android android context share improve this question I agree.. and Application. Reading the article a little bit further tells about the difference between the two and when you might want to consider using the application Context Activity.getApplicationContext rather than using the Activity context this..
http://stackoverflow.com/questions/1080811/android-endless-list
http://stackoverflow.com/questions/1106202/android-ocr for android application development android ocr share improve this question OCR can be pretty CPU intensive you might want to reconsider doing it on a smart phone. That aside to my knowledge the popular OCR libraries are Aspire and Tesseract..
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 Handler class should be static or leaks might occur IncomingHandler I'm developing an Android 2.3.3 application with a service. I have this inside that service to communicate.. new Messenger new IncomingHandler I get the following Lint warning This Handler class should be static or leaks might occur IncomingHandler What does it mean android memory leaks static classes android lint android handler share improve..
Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4) http://stackoverflow.com/questions/14452808/sending-and-receiving-sms-and-mms-in-android-pre-kit-kat-android-4-4 device. It is a real pain as if you do not have it on the message can hang a lot even when turning on Mobile Data and might require a reboot of the device. And GO Through this code http downloads.ziddu.com downloadfiles 14286605 SendMMS3.zip Hope..
Saving Activity state in Android http://stackoverflow.com/questions/151777/saving-activity-state-in-android else mTextView.setText Welcome back. setContentView mTextView private TextView mTextView null I thought that might be all one needed to do for the simplest case but it always gives me the first message no matter how I navigate away from..
How to check internet access on Android? InetAddress never timeouts http://stackoverflow.com/questions/1560788/how-to-check-internet-access-on-android-inetaddress-never-timeouts One other small point if you absolutely need a network connection at the given point in time then it might be better to use netInfo.isConnected rather than netInfo.isConnectedOrConnecting . I guess this is up to the indivudal use..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android is destroyed. It's difficult to say why this is without looking at your code. However this article has some tips that might help http android developers.blogspot.de 2009 01 avoiding memory leaks.html In particular using static variables is likely.. 2009 01 avoiding memory leaks.html In particular using static variables is likely to make things worse not better. You might need to add code that removes callbacks when your application redraws but again there's not enough information here to say..
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 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 download the file input connection.getInputStream..
creating a system overlay (always on top) button in android http://stackoverflow.com/questions/4481226/creating-a-system-overlay-always-on-top-button-in-android onTouchEvent Toast.LENGTH_LONG .show return true android overlay android ui share improve this question This might be a stupid solution. But it works. If you can improve it please let me know. OnCreate of your Service I have used WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH..
Android and XMPP: Currently available solutions http://stackoverflow.com/questions/4769020/android-and-xmpp-currently-available-solutions any other more recent options. I've been looking at the official Smack API and after a little research it seems it might work just fine nowadays although I have not tried it yet in a real application . There's also another solution I came across..
How to ship an Android application with a database? http://stackoverflow.com/questions/513084/how-to-ship-an-android-application-with-a-database have it create the database and insert the data on first use The drawbacks I see 1 Possible sqlite version mismatches might cause problems and I currently don't know where the database should go and how to access it. 2 It may take a really long..
How do I obtain crash-data from my Android application? http://stackoverflow.com/questions/601503/how-do-i-obtain-crash-data-from-my-android-application wild so that I can improve it and make it more solid. android crash stack trace share improve this question You might try the ACRA Application Crash Report for Android library ACRA is a library enabling Android Application to automatically..
Getting an issue while checking the dynamically generated checkbox through list view http://stackoverflow.com/questions/7738527/getting-an-issue-while-checking-the-dynamically-generated-checkbox-through-list You'll find the actual answer to this question at the bottom... Here's the actual idea and process of recycling so you might figure out what is wrong with your implementation and idea of getView and maybe others too when they will find this question.. it in phase 2 . Phase 2 Setup item state for given position You set the visual state for the item. Everything which might change individually for an item text checkbox state colors etc has to be set here. Not only what have changed for the current..
Android accelerometer accuracy (Inertial navigation) http://stackoverflow.com/questions/7829097/android-accelerometer-accuracy-inertial-navigation over 5000 iterations is nowhere near 0 averaging around 10 on each axis . I realise without seeing my code this might be difficult to answer but in a more general sense... Is this simply an example of how inaccurate the accelerometer readings..
http://stackoverflow.com/questions/9671546/asynctask-android-example onPostExecute String result TextView txt TextView findViewById R.id.output txt.setText Executed txt.setText result might want to change executed for the returned string passed into onPostExecute but that is upto you @Override protected void..
http://stackoverflow.com/questions/10722178/android-implementing-ussd-features-binding-a-service-to-the-phoneutils-withou a restart on every update even if there's nothing new with the service. What i would like to know is the following Might there be away to make the PhoneUtils bind to my service without a restart At least on update time In case there's no way..
Android Open and Save files to/from Google Drive SDK http://stackoverflow.com/questions/12164024/android-open-and-save-files-to-from-google-drive-sdk if launch null startActivityForResult launch 3025 return Not sure why... I wrote it here for some reason. Might not actually be necessary. catch OperationCanceledException e Handle it... catch AuthenticatorException e Handle it.....
What is correct xmlns url for AdMob in Android Layout XML http://stackoverflow.com/questions/2020542/what-is-correct-xmlns-url-for-admob-in-android-layout-xml to 48px which is not looking good on any DROID phone... android testing sdk admob share improve this question Might be worth checking that the error isn't due to something outside the file Make sure the package name you are using in your..
adb cannot find my device for Android debugging. Why? http://stackoverflow.com/questions/2271008/adb-cannot-find-my-device-for-android-debugging-why to recognize my Android Phone as an adb device . Why is that java android debugging share improve this question Might be faster just to restart the adb server adb kill server adb start server Or what I often use adb kill server adb devices..
Android Video Capture Sample App http://stackoverflow.com/questions/2550743/android-video-capture-sample-app
Check if directory exist on android's sdcard http://stackoverflow.com/questions/2625419/check-if-directory-exist-on-androids-sdcard question Regular Java file IO File f new File Environment.getExternalStorageDirectory somedir if f.isDirectory .... Might also want to check f.exists because if it exists and isDirectory returns false you'll have a problem. There's also isReadable..
http://stackoverflow.com/questions/3567312/android-drop-shadow-on-view blurFilter int offsetXY new int 2 Bitmap shadowImage originalBitmap.extractAlpha shadowPaint offsetXY Might need to convert shadowImage from 8 bit to ARGB here can't remember. Canvas c new Canvas shadowImage c.drawBitmap originalBitmap..
How to find out the running/start time of android application? http://stackoverflow.com/questions/3677229/how-to-find-out-the-running-start-time-of-android-application
Android: Trying to start BluetoothSettings activity Force Close with NullPointerException http://stackoverflow.com/questions/4224450/android-trying-to-start-bluetoothsettings-activity-force-close-with-nullpointer I've found in android core BluetoothDevicePicker interface and issue it the same effect with NullPointerException. Might be the wrongs names of the extras I prepare So is there a way I can see those extras with names especially from the intent..
What do GC_FOR_MALLOC, GC_EXPLICIT, and other GC_* mean in Android Logcat? http://stackoverflow.com/questions/4976566/what-do-gc-for-malloc-gc-explicit-and-other-gc-mean-in-android-logcat means that the GC was triggered because there wasn't enough memory left on the heap to perform an allocation. Might be triggered when new objects are being created. GC_EXPLICIT means that the garbage collector has been explicitly asked..
Android:How to add a button in surface view http://stackoverflow.com/questions/5779215/androidhow-to-add-a-button-in-surface-view your buttons to the same FrameLayout. Make sure they are placed below the surface view so they get drawn on top of it. Might be a good idea to bundle them in another Layout and add that to the FrameLayout. FrameLayout xmlns android http schemas.android.com..
Creating a custom layout for preferences http://stackoverflow.com/questions/6194116/creating-a-custom-layout-for-preferences layout @layout pref After that just fire findViewById in your Activity code and attach a listener to the button. Might have to do some more work if you have multiple buttons in the Activity but shouldn't be unreasonable. share improve this..
Performing login to https website via Android app http://stackoverflow.com/questions/6443401/performing-login-to-https-website-via-android-app Below code handles https and gives httpsclient for https url .. you need httpsclient to make request to https urls. Might below code is of help to you public DefaultHttpClient getClient DefaultHttpClient ret null sets up parameters HttpParams..
what is keycharmap file? why am i getting 'cant open keycharmap file' warning? http://stackoverflow.com/questions/9029782/what-is-keycharmap-file-why-am-i-getting-cant-open-keycharmap-file-warning jira.appcelerator.org browse TIMOB 2891 http code.google.com p alogcat issues detail id 19 which might be related. Might be worth checking to see if the error is logged when running other apps and see if it happens with further logins beyond..
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