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2014/10/16 ¤W¤È 08:27:06
android Programming Glossary: usageHow ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works was also unaware of listview recycling and the convertview usage mechanism but after a whole days research I pretty much understand..
Eclipse giving error, missing R.java file after recent update http://stackoverflow.com/questions/16608524/eclipse-giving-error-missing-r-java-file-after-recent-update include android.R here use a fully qualified name for each usage instead . Same thing is happening with Mac OS also with the..
BitmapFactory OOM driving me nuts http://stackoverflow.com/questions/1955410/bitmapfactory-oom-driving-me-nuts on what other applications are running and their bitmap usage. But given that BitmapFactory will not return you need a way..
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.. management share improve this question Note that memory usage on modern operating systems like Linux is an extremely complicated.. is extremely low. Pretty much every time I look at memory usage numbers with other engineers there is always a long discussion..
Detect application heap size in Android http://stackoverflow.com/questions/2630158/detect-application-heap-size-in-android heap size I can run without erroring even when my memory usage is allowed to drift up toward 20MB presumably it could go as..
How to get Memory usage and CPU usage in android? http://stackoverflow.com/questions/3118234/how-to-get-memory-usage-and-cpu-usage-in-android to get Memory usage and CPU usage in android Is there any API by which we can get.. to get Memory usage and CPU usage in android Is there any API by which we can get CPU or Memory.. Is there any API by which we can get CPU or Memory usage of android I have tried one code as below Please look into it..
Android - gravity and layout_gravity http://stackoverflow.com/questions/3482742/android-gravity-and-layout-gravity regarding these both. what is the difference between the usage of android gravity and android layout_gravity android android..
Any good graphing packages for Android? [closed] http://stackoverflow.com/questions/424752/any-good-graphing-packages-for-android fine workaround. However our eventual expected application usage is in a poor connectivity situation where network usage is expensive.. usage is in a poor connectivity situation where network usage is expensive unlocked phones in resource poor settings . java..
Grid Layout support in android API 10 http://stackoverflow.com/questions/10278358/grid-layout-support-in-android-api-10 from GridLayout to android.support.v7.widget.GridLayout. Usage should be similar if not identical. Regarding the Space widget..
How to encrypt file from sd card using AES in Android? http://stackoverflow.com/questions/10782187/how-to-encrypt-file-from-sd-card-using-aes-in-android harm if you're not doing it the right way. Know your tools Usage of CipherOutputStream Oracle documentation SecretKeySpec skeySpec..
Complete Working Sample of the Gmail Three-Fragment Animation Scenario? http://stackoverflow.com/questions/12253965/complete-working-sample-of-the-gmail-three-fragment-animation-scenario cause of the screen cast. Actual performance is very fast Usage layout new ThreeLayout this 3 layout.setAnimationDuration 1000..
support for different screen sizes in android http://stackoverflow.com/questions/14215690/support-for-different-screen-sizes-in-android no auto scale Aspect ratio long notlong Orientation land Usage res layout my_layout.xml res layout small my_layout.xml res..
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 data is turned off. In Jelly Bean it is Settings Data Usage mobile data Note that I have to have mobile data turned on PRIOR..
Android color picker to be included in the activity http://stackoverflow.com/questions/16363235/android-color-picker-to-be-included-in-the-activity visible public int getColor return mColorPicker.getColor Usage final ColorPickerDialog d new ColorPickerDialog ActivityName.this..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue for reference.Modify the below according to your needs. Usage try DescEncrypter ec new DescEncrypter byte cipherText ec.encrypt..
http://stackoverflow.com/questions/2317167/helloandroid-emulator-problem set the emulator to Real Time priority. Observing a 50 CPU Usage I rebooted. After rebooting I started the emulator using the..
How to create named pipe (mkfifo) in Android? http://stackoverflow.com/questions/2740321/how-to-create-named-pipe-mkfifo-in-android int result 1 if argc 2 argv 1 0 'c' argv 1 0 's' printf Usage c s n return 2 if makeAddr com.whoever.xfer sockAddr sockLen..
Getting a Photo from a Contact http://stackoverflow.com/questions/3509178/getting-a-photo-from-a-contact person ContactsContract.Contacts.Photo.CONTENT_DIRECTORY Usage is Uri u objItem.getPhotoUri if u null mPhotoView.setImageURI..
What is a Full Android Database Helper class for an existing SQLite database? [closed] http://stackoverflow.com/questions/3548533/what-is-a-full-android-database-helper-class-for-an-existing-sqlite-database catch SQLException sqle throw sqle return this Usage from outside AnyDBAdapter dba new AnyDBAdapter contextObject.. return mDb.rawQuery query new String myVariable Usage AnyDBAdatper dba new AnyDBAdapter contextObjecT dba.open dba.ExampleCommand..
Android: How to handle right to left swipe gestures http://stackoverflow.com/questions/4139288/android-how-to-handle-right-to-left-swipe-gestures public void onSwipeTop public void onSwipeBottom Usage imageView.setOnTouchListener new OnSwipeTouchListener public..
How can I effectively debug C code that's wrapped with JNI in Eclipse? (Android Dev) http://stackoverflow.com/questions/4846080/how-can-i-effectively-debug-c-code-thats-wrapped-with-jni-in-eclipse-android readable stack trace from Android logcat crash echo Usage 0 lib.so crash.log exit 1 fi of mktemp echo Disassemble 1 ~..
use android dynamicaly load more items to the listview need help http://stackoverflow.com/questions/5764441/use-android-dynamicaly-load-more-items-to-the-listview-need-help map.put img bitmap http www.imagemagick.org Usage thumbnails mylist.add map catch JSONException e Log.e log_tag.. map.put img bitmap http www.imagemagick.org Usage thumbnails mylist.add map catch JSONException e Log.e..
http://stackoverflow.com/questions/6925659/keytool-alias-does-not-exist keypass android keytool error java.lang.RuntimeException Usage error android is not a legal command share improve this answer..
Usage CursorLoader without ContentProvider http://stackoverflow.com/questions/7182485/usage-cursorloader-without-contentprovider CursorLoader without ContentProvider Android SDK documentation..
How to initialize sqlite database once from a helper class in Android http://stackoverflow.com/questions/7444327/how-to-initialize-sqlite-database-once-from-a-helper-class-in-android getApplicationContext Usage Some other Class MyTestDatabaseInstanceHolder.m_ObjDataBase.rawQuery..
What are best practices for using AES encryption in Android? http://stackoverflow.com/questions/8622367/what-are-best-practices-for-using-aes-encryption-in-android import javax.crypto.spec.SecretKeySpec Usage pre String crypto SimpleCrypto.encrypt masterpassword cleartext..
How ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works android gridview share improve this question Initially I was also unaware of listview recycling and the convertview usage mechanism but after a whole days research I pretty much understand the mechanisms of the list view by referring to an image..
Eclipse giving error, missing R.java file after recent update http://stackoverflow.com/questions/16608524/eclipse-giving-error-missing-r-java-file-after-recent-update android.R but it is showing as unused import stating Don't include android.R here use a fully qualified name for each usage instead . Same thing is happening with Mac OS also with the latest update. I have tried renaming activity_main.xml to other..
BitmapFactory OOM driving me nuts http://stackoverflow.com/questions/1955410/bitmapfactory-oom-driving-me-nuts running applications so the amount of free space depends on what other applications are running and their bitmap usage. But given that BitmapFactory will not return you need a way to figure out if the call is going to succeed before you make..
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... free memory of the phone too. java android memory memory management share improve this question Note that memory usage on modern operating systems like Linux is an extremely complicated and difficult to understand area. In fact the chances.. you actually correctly interpreting whatever numbers you get is extremely low. Pretty much every time I look at memory usage numbers with other engineers there is always a long discussion about what they actually mean that only results in a vague..
Detect application heap size in Android http://stackoverflow.com/questions/2630158/detect-application-heap-size-in-android has a memory class of 16 if I manually select 24MB as the heap size I can run without erroring even when my memory usage is allowed to drift up toward 20MB presumably it could go as high as 24MB although I haven't tried this . But other similarly..
How to get Memory usage and CPU usage in android? http://stackoverflow.com/questions/3118234/how-to-get-memory-usage-and-cpu-usage-in-android to get Memory usage and CPU usage in android Is there any API by which we can get CPU or Memory usage of android I have tried one code as below.. to get Memory usage and CPU usage in android Is there any API by which we can get CPU or Memory usage of android I have tried one code as below Please look.. to get Memory usage and CPU usage in android Is there any API by which we can get CPU or Memory usage of android I have tried one code as below Please look into it and let me know if this is the correct way package com.infostretch.mainactivity..
Android - gravity and layout_gravity http://stackoverflow.com/questions/3482742/android-gravity-and-layout-gravity center_vertical center_horizontal etc. But i am confused regarding these both. what is the difference between the usage of android gravity and android layout_gravity android android layout share improve this question Their names should..
Any good graphing packages for Android? [closed] http://stackoverflow.com/questions/424752/any-good-graphing-packages-for-android pull down a Google chart with a HTTP get which seems like a fine workaround. However our eventual expected application usage is in a poor connectivity situation where network usage is expensive unlocked phones in resource poor settings . java android.. a fine workaround. However our eventual expected application usage is in a poor connectivity situation where network usage is expensive unlocked phones in resource poor settings . java android graph share improve this question UPDATE Since..
Grid Layout support in android API 10 http://stackoverflow.com/questions/10278358/grid-layout-support-in-android-api-10 support pre ICS devices. In the Layout files change your xml from GridLayout to android.support.v7.widget.GridLayout. Usage should be similar if not identical. Regarding the Space widget I haven't actually used this one yet but it appears to be..
How to encrypt file from sd card using AES in Android? http://stackoverflow.com/questions/10782187/how-to-encrypt-file-from-sd-card-using-aes-in-android on the use case of encryption you could do a lot of harm if you're not doing it the right way. Know your tools Usage of CipherOutputStream Oracle documentation SecretKeySpec skeySpec new SecretKeySpec y.getBytes AES FileInputStream fis FileOutputStream..
Complete Working Sample of the Gmail Three-Fragment Animation Scenario? http://stackoverflow.com/questions/12253965/complete-working-sample-of-the-gmail-three-fragment-animation-scenario better Demo video with the animation Here Slow frame rate cause of the screen cast. Actual performance is very fast Usage layout new ThreeLayout this 3 layout.setAnimationDuration 1000 setContentView layout layout.getLeftView inflate FragmentA..
support for different screen sizes in android http://stackoverflow.com/questions/14215690/support-for-different-screen-sizes-in-android Size small normal large Density ldpi mdpi hdpi nodpi no auto scale Aspect ratio long notlong Orientation land Usage res layout my_layout.xml res layout small my_layout.xml res layout large my_layout.xml res layout large long my_layout.xml..
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 describe above Galaxy Nexus on t mobile USA it is because mobile data is turned off. In Jelly Bean it is Settings Data Usage mobile data Note that I have to have mobile data turned on PRIOR to sending an MMS OR receiving one. If I receive an MMS..
Android color picker to be included in the activity http://stackoverflow.com/questions/16363235/android-color-picker-to-be-included-in-the-activity boolean visible mColorPicker.setAlphaSliderVisible visible public int getColor return mColorPicker.getColor Usage final ColorPickerDialog d new ColorPickerDialog ActivityName.this 0xffffffff d.setAlphaSliderVisible true d.setButton..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue SecretKeyFactory.html Check the above links. Use the below for reference.Modify the below according to your needs. Usage try DescEncrypter ec new DescEncrypter byte cipherText ec.encrypt hi hello String enc new String cipherText UTF 8 String..
http://stackoverflow.com/questions/2317167/helloandroid-emulator-problem to only use CPU 0 so I changed it to use all CPUs. I also set the emulator to Real Time priority. Observing a 50 CPU Usage I rebooted. After rebooting I started the emulator using the command line emulator @Android22 Android22 is the name of my..
How to create named pipe (mkfifo) in Android? http://stackoverflow.com/questions/2740321/how-to-create-named-pipe-mkfifo-in-android hello world struct sockaddr_un sockAddr socklen_t sockLen int result 1 if argc 2 argv 1 0 'c' argv 1 0 's' printf Usage c s n return 2 if makeAddr com.whoever.xfer sockAddr sockLen 0 return 1 int fd socket AF_LOCAL SOCK_STREAM PF_UNIX if fd..
Getting a Photo from a Contact http://stackoverflow.com/questions/3509178/getting-a-photo-from-a-contact Long .parseLong getId return Uri.withAppendedPath person ContactsContract.Contacts.Photo.CONTENT_DIRECTORY Usage is Uri u objItem.getPhotoUri if u null mPhotoView.setImageURI u else mPhotoView.setImageResource R.drawable.ic_contact_picture_2..
What is a Full Android Database Helper class for an existing SQLite database? [closed] http://stackoverflow.com/questions/3548533/what-is-a-full-android-database-helper-class-for-an-existing-sqlite-database throw new Error Unable to create database try mDbHelper.openDataBase catch SQLException sqle throw sqle return this Usage from outside AnyDBAdapter dba new AnyDBAdapter contextObject in my case contextObject is a Map dba.open Cursor c dba.ExampleSelect.. string myVariable String query SELECT locale FROM android_metadata return mDb.rawQuery query new String myVariable Usage AnyDBAdatper dba new AnyDBAdapter contextObjecT dba.open dba.ExampleCommand en CA en GB dba.close public void ExampleCommand..
Android: How to handle right to left swipe gestures http://stackoverflow.com/questions/4139288/android-how-to-handle-right-to-left-swipe-gestures return result public void onSwipeRight public void onSwipeLeft public void onSwipeTop public void onSwipeBottom Usage imageView.setOnTouchListener new OnSwipeTouchListener public void onSwipeTop Toast.makeText MyActivity.this top Toast.LENGTH_SHORT..
How can I effectively debug C code that's wrapped with JNI in Eclipse? (Android Dev) http://stackoverflow.com/questions/4846080/how-can-i-effectively-debug-c-code-thats-wrapped-with-jni-in-eclipse-android I use to do the lot # bin sh if test # lt 2 then echo Extract readable stack trace from Android logcat crash echo Usage 0 lib.so crash.log exit 1 fi of mktemp echo Disassemble 1 ~ tools android ndk r5 toolchains arm linux androideabi 4.4.3..
use android dynamicaly load more items to the listview need help http://stackoverflow.com/questions/5764441/use-android-dynamicaly-load-more-items-to-the-listview-need-help image Bitmap bitmap BitmapFactory.decodeStream pictureURL.openStream map.put img bitmap http www.imagemagick.org Usage thumbnails mylist.add map catch JSONException e Log.e log_tag Error parsing data e.toString catch MalformedURLException.. image Bitmap bitmap BitmapFactory.decodeStream pictureURL.openStream map.put img bitmap http www.imagemagick.org Usage thumbnails mylist.add map catch JSONException e Log.e log_tag Error parsing data e.toString catch MalformedURLException..
http://stackoverflow.com/questions/6925659/keytool-alias-does-not-exist
Usage CursorLoader without ContentProvider http://stackoverflow.com/questions/7182485/usage-cursorloader-without-contentprovider CursorLoader without ContentProvider Android SDK documentation says that startManagingCursor method is depracated This..
How to initialize sqlite database once from a helper class in Android http://stackoverflow.com/questions/7444327/how-to-initialize-sqlite-database-once-from-a-helper-class-in-android
What are best practices for using AES encryption in Android? http://stackoverflow.com/questions/8622367/what-are-best-practices-for-using-aes-encryption-in-android import javax.crypto.KeyGenerator import javax.crypto.SecretKey import javax.crypto.spec.SecretKeySpec Usage pre String crypto SimpleCrypto.encrypt masterpassword cleartext ... String cleartext SimpleCrypto.decrypt masterpassword..
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