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2014/10/16 ¤W¤È 08:10:28
android Programming Glossary: basicallyHow ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works When ever your listview is filled with an adapter it basically shows the number of Rows that the listview can show on screen.. your new item 8 will be drawn using convertview i.e basically it take the item1 view from the recycler and inflater in place..
How to avoid reverse engineering of an APK file? http://stackoverflow.com/questions/13854425/how-to-avoid-reverse-engineering-of-an-apk-file to change it in any way she or he finds it feasible . You basically can't protect your application from being modified. And any..
http://stackoverflow.com/questions/1979524/android-splashscreen SplashScreen I'm developing an application which basically downloads a lot of data at the start of the application itself..
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 the kernel computes that takes into account memory sharing basically each page of RAM in a process is scaled by a ratio of the number.. The other interesting metric here is PrivateDirty which is basically the amount of RAM inside the process that can not be paged to.. 64K system bin debuggerd Here the Vss and Rss columns are basically noise these are the straight forward address space and RAM usage..
How do I get the web page contents from a WebView? http://stackoverflow.com/questions/2376471/how-do-i-get-the-web-page-contents-from-a-webview answer in this post on lexandera.com. The code below is basically a cut and paste from the site. It seems to do the trick. final..
http://stackoverflow.com/questions/2430045/how-to-register-some-url-namespace-myapp-app-start-for-accessing-your-progr the standard rules for URIs via the W3C and such which basically means do not do this. Android defines a Uri syntax for describing..
More efficient way of updating UI from Service than intents? http://stackoverflow.com/questions/2621395/more-efficient-way-of-updating-ui-from-service-than-intents as well much simpler than yours but the same idea and it basically tells the app its new state and the app can then pass this information..
Focusable EditText inside ListView http://stackoverflow.com/questions/2679948/focusable-edittext-inside-listview does not give the EditText focus. What I'm envisioning is basically a hybrid of 1 2 where rather than the list setting if all items..
Change language programatically in Android http://stackoverflow.com/questions/2900023/change-language-programatically-in-android not recommend that. We've tried it at early stages it's basically fighting the system. We have same requirement for changing language..
How to call SOAP web service in Android http://stackoverflow.com/questions/297586/how-to-call-soap-web-service-in-android for calling standard web services. The web service is just basically one created in NetBeans . I would like to have IDE support for..
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 is a library a friend and I wrote time ago. It basically helps you run pieces of code in a background service and it..
Android popup window dismissal http://stackoverflow.com/questions/3121232/android-popup-window-dismissal and puts your content view in it. PopupViewContainer is basically a FrameLayout that listens for touch events and the KeyEvent.KEYCODE_BACK..
How to develop a soft keyboard for Android? http://stackoverflow.com/questions/3480715/how-to-develop-a-soft-keyboard-for-android this repo LatinIME About your questions An inputMethod is basically an Android Service so yes you can do HTTP and all the stuff..
Android - What's the best way to share data between activities? http://stackoverflow.com/questions/4878159/android-whats-the-best-way-to-share-data-between-activities String data app.getData Static fields The idea is basically the than the singleton but in this case you provide static access..
What is the main purpose of setTag() getTag() methods of View? http://stackoverflow.com/questions/5291726/what-is-the-main-purpose-of-settag-gettag-methods-of-view public void onClick View v doAction v.getTag It's basically a way for views to have memories . share improve this answer..
Java 7 language features with Android http://stackoverflow.com/questions/7153989/java-7-language-features-with-android .SYNC_FLUSH .FULL_FLUSH .deflate with 4 arguments That's basically all. In particular NIO 2.0 does not exist and Arrays.asList..
Actionbarsherlock + tabs + multi fragments? http://stackoverflow.com/questions/10082163/actionbarsherlock-tabs-multi-fragments You need the right libraries to implement what you want. Basically a ViewPager library is what is missing from you. My suggestions..
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 rather than using the Activity context this . Basically the Application context is associated with the Application and..
http://stackoverflow.com/questions/1083527/how-to-block-calls-in-android of my own. So what are the APIs which I should be using Basically I want to get notified when a call comes i want to compare numbers..
How do I restart an Android Activity http://stackoverflow.com/questions/1397361/how-do-i-restart-an-android-activity this Intent intent getIntent finish startActivity intent Basically I'm calling finish first and I'm using the exact same intent..
How can I check the current status of the GPS receiver? http://stackoverflow.com/questions/2021176/how-can-i-check-the-current-status-of-the-gps-receiver seems that is not working or just the wrong possibility. Basically I just need to know if the GPS icon at the top of the screen.. Do something. mLastLocation location And that's it. Basically this is the line that does it all isGPSFix SystemClock.elapsedRealtime..
ffmpeg for a android (using tutorial: “ffmpeg and Android.mk”) http://stackoverflow.com/questions/2645041/ffmpeg-for-a-android-using-tutorial-ffmpeg-and-android-mk application. Code is here http bambuser.com opensource Basically you copy the .so files to your jni lib directory along with..
Custom SSL handling stopped working on Android 2.2 FroYo http://stackoverflow.com/questions/2899079/custom-ssl-handling-stopped-working-on-android-2-2-froyo to make sure self signed certificates are working. Basically I accept everything and ignore every checking of any certificate...
http://stackoverflow.com/questions/3007998/on-logout-clear-activity-history-stack-preventing-back-button-from-opening-l I can suggest you another approach IMHO more robust. Basically you need to brodcast a logout message to all your Activities..
Android Quick Actions UI Pattern http://stackoverflow.com/questions/3059155/android-quick-actions-ui-pattern incorporating the Android UI pattern called Quick Action . Basically it's a context menu that doesn't cover up the data that is being..
http://stackoverflow.com/questions/3197335/restful-api-service some code and I can't get anything which I'm happy with. Basically I want to start a service on app init then I want to be able..
Make a link in the Android browser start up my app? http://stackoverflow.com/questions/3469908/make-a-link-in-the-android-browser-start-up-my-app take a look at the documentation for the data sub element. Basically what you'll need to do is define your own scheme. Something..
http://stackoverflow.com/questions/4062161/android-i-am-using-achartengine-library-for-graphs-but-not-able-to-integrate-a an example on how to embed a chart into an existing view. Basically in the activity descriptor .xml file we have defined the following..
http://stackoverflow.com/questions/4381033/multi-gradient-shapes p.setShape new RectShape p.setShaderFactory sf Basically the int array allows you to select multiple color stops and.. just replace or add stops for the colors that you need. Basically in my example you would start with a light green fade to white..
Android: Want to set custom fonts for whole application not runtime http://stackoverflow.com/questions/4395309/android-want-to-set-custom-fonts-for-whole-application-not-runtime Using a custom typeface in Android This should help. Basically there's no way to do this in XML and as far as I can tell no..
http://stackoverflow.com/questions/4725773/ffmpeg-on-android of documentation out there on how to work with the NDK. Basically you'll need to write some C C code to export the functionality..
How to play a video in a webview with android? http://stackoverflow.com/questions/4989738/how-to-play-a-video-in-a-webview-with-android I had to research a bit and found some useful answers. Basically you have to open the video the way the native browser does public..
How to ship an Android application with a database? http://stackoverflow.com/questions/513084/how-to-ship-an-android-application-with-a-database Using your own SQLite database in Android applications . Basically you precreate your database put it in your assets directory..
Admob Error in Eclipse for android:configChanges http://stackoverflow.com/questions/7899767/admob-error-in-eclipse-for-androidconfigchanges target to android 13 if that is the case. Basically you just have to make sure that the SDK revision is 13 or above..
Creating an Android trial application that expires after a fixed time period http://stackoverflow.com/questions/995719/creating-an-android-trial-application-that-expires-after-a-fixed-time-period but still circumventable. Use a hard coded time bomb. Basically with this approach you will be hard code an end date for the..
How ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works of the list view by referring to an image from android.amberfog When ever your listview is filled with an adapter it basically shows the number of Rows that the listview can show on screen and the number of rows doesnt get increase even you scroll.. Logcat you will notice that convetView is not null its because your new item 8 will be drawn using convertview i.e basically it take the item1 view from the recycler and inflater in place of item 8 and you can observe that as in mine code if you..
How to avoid reverse engineering of an APK file? http://stackoverflow.com/questions/13854425/how-to-avoid-reverse-engineering-of-an-apk-file Whatever you do to your code a potential attacker is able to change it in any way she or he finds it feasible . You basically can't protect your application from being modified. And any protection you put in there can be disabled removed. 2. How..
http://stackoverflow.com/questions/1979524/android-splashscreen SplashScreen I'm developing an application which basically downloads a lot of data at the start of the application itself and displays it in the ListActivity. What I'm planning 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 than the actual total RAM. The Pss number is a metric the kernel computes that takes into account memory sharing basically each page of RAM in a process is scaled by a ratio of the number of other processes also using that page. This way you can.. processes to get a rough idea of their relative weight. The other interesting metric here is PrivateDirty which is basically the amount of RAM inside the process that can not be paged to disk it is not backed by the same data on disk and is not.. 280K 276K 74K 68K system bin servicemanager 54 256K 252K 69K 64K system bin debuggerd Here the Vss and Rss columns are basically noise these are the straight forward address space and RAM usage of a process where if you add up the RAM usage across processes..
How do I get the web page contents from a WebView? http://stackoverflow.com/questions/2376471/how-do-i-get-the-web-page-contents-from-a-webview question because I had the same problem. I think I found the answer in this post on lexandera.com. The code below is basically a cut and paste from the site. It seems to do the trick. final Context myApp this An instance of this class will be registered..
http://stackoverflow.com/questions/2430045/how-to-register-some-url-namespace-myapp-app-start-for-accessing-your-progr browser share improve this question You need to follow the standard rules for URIs via the W3C and such which basically means do not do this. Android defines a Uri syntax for describing a generic Intent. There are methods on Intent for converting..
More efficient way of updating UI from Service than intents? http://stackoverflow.com/questions/2621395/more-efficient-way-of-updating-ui-from-service-than-intents with . I have a bound service that needs to update the UI as well much simpler than yours but the same idea and it basically tells the app its new state and the app can then pass this information along in one way or another to the currently active..
Focusable EditText inside ListView http://stackoverflow.com/questions/2679948/focusable-edittext-inside-listview calling editTextView.requestFocus returns true but in fact does not give the EditText focus. What I'm envisioning is basically a hybrid of 1 2 where rather than the list setting if all items are focusable or not I want to set focusability for a single..
Change language programatically in Android http://stackoverflow.com/questions/2900023/change-language-programatically-in-android It's possible. You can set the locale. However i would not recommend that. We've tried it at early stages it's basically fighting the system. We have same requirement for changing language but decided to settle to the fact that UI should be..
How to call SOAP web service in Android http://stackoverflow.com/questions/297586/how-to-call-soap-web-service-in-android it's 2008 so I figured there should be some good library for calling standard web services. The web service is just basically one created in NetBeans . I would like to have IDE support for generating the plumbing classes. I just need the easiest..
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 progress 100 mProgressDialog.dismiss 2.1 Use Groundy library Groundy is a library a friend and I wrote time ago. It basically helps you run pieces of code in a background service and it is based on the ResultReceiver concept shown above. This is..
Android popup window dismissal http://stackoverflow.com/questions/3121232/android-popup-window-dismissal of PopupViewContainer and calls setBackgroundDrawable on that and puts your content view in it. PopupViewContainer is basically a FrameLayout that listens for touch events and the KeyEvent.KEYCODE_BACK event to dismiss the window. If background null..
How to develop a soft keyboard for Android? http://stackoverflow.com/questions/3480715/how-to-develop-a-soft-keyboard-for-android Some tips Read this tutorial Creating an Input Method clone this repo LatinIME About your questions An inputMethod is basically an Android Service so yes you can do HTTP and all the stuff you can do in a Service . You can open Activities and dialogs..
Android - What's the best way to share data between activities? http://stackoverflow.com/questions/4878159/android-whats-the-best-way-to-share-data-between-activities activity MyApplication app MyApplication getApplicationContext String data app.getData Static fields The idea is basically the than the singleton but in this case you provide static access to the data public class DataHolder private static String..
What is the main purpose of setTag() getTag() methods of View? http://stackoverflow.com/questions/5291726/what-is-the-main-purpose-of-settag-gettag-methods-of-view
Java 7 language features with Android http://stackoverflow.com/questions/7153989/java-7-language-features-with-android
Actionbarsherlock + tabs + multi fragments? http://stackoverflow.com/questions/10082163/actionbarsherlock-tabs-multi-fragments fragments actionbarsherlock share improve this question You need the right libraries to implement what you want. Basically a ViewPager library is what is missing from you. My suggestions 1. ActionbarSherlock It's so dead easy to work with that..
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 to consider using the application Context Activity.getApplicationContext rather than using the Activity context this . Basically the Application context is associated with the Application and will always be the same throughout the life cycle of your..
http://stackoverflow.com/questions/1083527/how-to-block-calls-in-android to block calls from few numbers for that I want to write a app of my own. So what are the APIs which I should be using Basically I want to get notified when a call comes i want to compare numbers if it is what i want to block i want to cut the call..
How do I restart an Android Activity http://stackoverflow.com/questions/1397361/how-do-i-restart-an-android-activity share improve this question I did my theme switcher like this Intent intent getIntent finish startActivity intent Basically I'm calling finish first and I'm using the exact same intent this activity was started with. That seems to do the trick..
How can I check the current status of the GPS receiver? http://stackoverflow.com/questions/2021176/how-can-i-check-the-current-status-of-the-gps-receiver the LocationListener onStatusChanged method but somehow it seems that is not working or just the wrong possibility. Basically I just need to know if the GPS icon at the top of the screen is blinking no actual fix or solid fix is available . android.. null return mLastLocationMillis SystemClock.elapsedRealtime Do something. mLastLocation location And that's it. Basically this is the line that does it all isGPSFix SystemClock.elapsedRealtime mLastLocationMillis 3000 You can tweak the milliseconds..
ffmpeg for a android (using tutorial: “ffmpeg and Android.mk”) http://stackoverflow.com/questions/2645041/ffmpeg-for-a-android-using-tutorial-ffmpeg-and-android-mk by Bambuser which ported ffmpeg to use in their android application. Code is here http bambuser.com opensource Basically you copy the .so files to your jni lib directory along with any .h files you might need create a JNI wrapper through javah..
Custom SSL handling stopped working on Android 2.2 FroYo http://stackoverflow.com/questions/2899079/custom-ssl-handling-stopped-working-on-android-2-2-froyo HttpClient I am using a custom SSL socket factory implementation to make sure self signed certificates are working. Basically I accept everything and ignore every checking of any certificate. This has been working fine for some time now but it no..
http://stackoverflow.com/questions/3007998/on-logout-clear-activity-history-stack-preventing-back-button-from-opening-l completely overlooking android share improve this question I can suggest you another approach IMHO more robust. Basically you need to brodcast a logout message to all your Activities need to stay under a logged in status. So you can use the sendBroadcast..
Android Quick Actions UI Pattern http://stackoverflow.com/questions/3059155/android-quick-actions-ui-pattern Quick Actions UI Pattern I'm interesting in incorporating the Android UI pattern called Quick Action . Basically it's a context menu that doesn't cover up the data that is being acted on. I'd like to implement this but I cannot find..
http://stackoverflow.com/questions/3197335/restful-api-service books and looking at articles whilst playing about with some code and I can't get anything which I'm happy with. Basically I want to start a service on app init then I want to be able to ask that service to request a url and return the results...
Make a link in the Android browser start up my app? http://stackoverflow.com/questions/3469908/make-a-link-in-the-android-browser-start-up-my-app intent filter element of your Mainfest file. Specifically take a look at the documentation for the data sub element. Basically what you'll need to do is define your own scheme. Something along the lines of intent filter data android scheme anton action..
http://stackoverflow.com/questions/4062161/android-i-am-using-achartengine-library-for-graphs-but-not-able-to-integrate-a here AChartEngine demo In the demo source code you can see an example on how to embed a chart into an existing view. Basically in the activity descriptor .xml file we have defined the following as a placeholder for the chart. Of course other user..
http://stackoverflow.com/questions/4381033/multi-gradient-shapes 1 Shader.TileMode.REPEAT return lg PaintDrawable p new PaintDrawable p.setShape new RectShape p.setShaderFactory sf Basically the int array allows you to select multiple color stops and the following float array defines where those stops are positioned.. this at the moment this is code from my head but basically just replace or add stops for the colors that you need. Basically in my example you would start with a light green fade to white slightly before the center to give a fade rather than a harsh..
Android: Want to set custom fonts for whole application not runtime http://stackoverflow.com/questions/4395309/android-want-to-set-custom-fonts-for-whole-application-not-runtime MyStyle item name typeface roboto item style PREVIOUS ANSWER Using a custom typeface in Android This should help. Basically there's no way to do this in XML and as far as I can tell no easier way to do it in code. You could always have a setLayoutFont..
http://stackoverflow.com/questions/4725773/ffmpeg-on-android ffmpeg functionality using the Android NDK . There's a lot of documentation out there on how to work with the NDK. Basically you'll need to write some C C code to export the functionality you need out of ffmpeg into a library java can interact with..
How to play a video in a webview with android? http://stackoverflow.com/questions/4989738/how-to-play-a-video-in-a-webview-with-android for Android webkit. And then... when I had to face this issue I had to research a bit and found some useful answers. Basically you have to open the video the way the native browser does public class InredisChromeClient extends WebChromeClient implements..
How to ship an Android application with a database? http://stackoverflow.com/questions/513084/how-to-ship-an-android-application-with-a-database a way to do this in ReignDesign blog in an article titled Using your own SQLite database in Android applications . Basically you precreate your database put it in your assets directory in your apk and on first use copy to data data YOUR_PACKAGE..
Admob Error in Eclipse for android:configChanges http://stackoverflow.com/questions/7899767/admob-error-in-eclipse-for-androidconfigchanges android 3.2 revision 13 so you just have to change the project.properties target to android 13 if that is the case. Basically you just have to make sure that the SDK revision is 13 or above and that you have that SDK installed in the SDK manager..
Creating an Android trial application that expires after a fixed time period http://stackoverflow.com/questions/995719/creating-an-android-trial-application-that-expires-after-a-fixed-time-period trial period. The second approach is harder to circumvent but still circumventable. Use a hard coded time bomb. Basically with this approach you will be hard code an end date for the trial and all users that download and use the app will stop..
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