¡@
2014/10/16 ¤W¤È 08:14:36
android Programming Glossary: here'sHow to close Android application? http://stackoverflow.com/questions/2092951/how-to-close-android-application SEARCH key. Below is some example classes to illustrate Here's an example of a root activity that kills the application when.. when the root activity is killed. UIHelper.killApp true Here's an abstract activity that can be extended to handle the HOME.. onSearchRequested Disable the SEARCH key. return false Here's an example of a menu screen that handles the HOME key @author..
NoClassDefFoundError - Eclipse and Android http://stackoverflow.com/questions/2247998/noclassdeffounderror-eclipse-and-android now get a NoClassDefFoundError when I try to run the app. Here's the message 02 11 21 45 26.154 ERROR AndroidRuntime 3654 java.lang.NoClassDefFoundError..
http://stackoverflow.com/questions/2395661/android-tabs-at-the-bottom llappall android tabwidget share improve this question Here's the simplest most robust and scalable solution to get tabs on..
What are the best practices for SQLite on Android? http://stackoverflow.com/questions/2493331/what-are-the-best-practices-for-sqlite-on-android be faster but buyer beware. I haven't tested that much. Here's a blog post with far more detail and an example app. Android..
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 but they didn't explain well how to handle the response. Here's some sample code on how to do that protected void onActivityResult..
Android - HorizontalScrollView within ScrollView Touch Handling http://stackoverflow.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling for normal vertical scrolling elsewhere in the scrollview Here's a sample of my code public class HomeFeatureLayout extends HorizontalScrollView..
How to send a JSON object over Request with Android? http://stackoverflow.com/questions/3027066/how-to-send-a-json-object-over-request-with-android using the Apache HTTP client which comes with Android. Here's a snippet of code I used to send an HTTP POST. I don't understand..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a about if the user is moving around or anything like that. Here's what I'd like to do Show the user a list of nearby locations... this android geolocation share improve this question Here's what I do First of all I check what providers are enabled. Some.. available providers and choose the most recent of them. Here's how I use my class LocationResult locationResult new LocationResult..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible 1.5 HTC Hero. However only the first gets executed. Here's a simple snippet to describe my problem public class AndroidJunk..
How do I do a lazy load of images in ListView http://stackoverflow.com/questions/541966/how-do-i-do-a-lazy-load-of-images-in-listview image url android listview share improve this question Here's what I created to hold the images that my app is currently displaying...
Capture Image from Camera and Display in Activity http://stackoverflow.com/questions/5991319/capture-image-from-camera-and-display-in-activity image camera capture share improve this question Here's an example activity that will launch the camera app and then..
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 find the actual answer to this question at the bottom... Here's the actual idea and process of recycling so you might figure.. for big lists you're just wasting precious memory Here's an example void getItemViewType int position return isItemAtPositionSeperator..
How to call Android contacts list? http://stackoverflow.com/questions/866769/how-to-call-android-contacts-list a contact then return to my app with the contact's name. Here's the code I got on the internet but it doesnt work. import android.app.ListActivity..
How to make an Android Spinner with initial text “Select One” http://stackoverflow.com/questions/867518/how-to-make-an-android-spinner-with-initial-text-select-one android android spinner share improve this question Here's a general solution that overrides the Spinner view. It overrides..
Changing the background drawable of the searchview widget http://stackoverflow.com/questions/11085308/changing-the-background-drawable-of-the-searchview-widget share improve this question Intro Unfortunately there's no way to set SearchView text field style using themes styles.. but you can do the same with Holo Dark . It seems that there's no real difference in selected state 9 patches between Light.. state 9 patches between Light and Dark themes. However there's a difference in 9 patches for default state see Light vs Dark..
Android custom ListView unable to click on items http://stackoverflow.com/questions/1121192/android-custom-listview-unable-to-click-on-items android layout_height wrap_content LinearLayout And here's the class that extends the ListActivity. Obviously it's still..
How did Google manage to do this? Slide ActionBar in Android application http://stackoverflow.com/questions/11234375/how-did-google-manage-to-do-this-slide-actionbar-in-android-application side navigation share improve this question In fact there's a way to do this. Even without implementing your own ActionBar... look at the hierachyviewer Located in the tools directory There's the DecorView and a LinearLayout as a child. This LinearLayout.. FrameLayout that when it's clicked collapses the menu. So here's some code First the class for collapsing expanding SlideMenu.java..
http://stackoverflow.com/questions/14083950/duplicate-id-tag-null-or-parent-id-with-another-fragment-for-com-google-androi just return view as it is return view For good measure here's map.xml R.layout.map with R.id.mapFragment android id @ id mapFragment..
Android: Binding data from a database to a CheckBox in a ListView? http://stackoverflow.com/questions/1505751/android-binding-data-from-a-database-to-a-checkbox-in-a-listview you override ResourceCursorAdapter is a good one . Ok so here's an example. I didn't test to see if it would compile because..
Is it possible to have multiple styles inside a TextView? http://stackoverflow.com/questions/1529068/is-it-possible-to-have-multiple-styles-inside-a-textview this question In case anyone is wondering how to do this here's one way Thanks to Mark again mBox new TextView context mBox.setText..
http://stackoverflow.com/questions/1945142/bitmaps-in-android and the native one isn't. For these purposes though here's not much difference. When your Bitmap object gets garbage collected..
how to connect android emulator to the internet http://stackoverflow.com/questions/2039964/how-to-connect-android-emulator-to-the-internet the answers may have addressed this however obliquely but here's what worked for me. Assuming your problem is occurring when..
How do I load a contact Photo? http://stackoverflow.com/questions/2383580/how-do-i-load-a-contact-photo return thumbnail finally cursor.close And here's a typical use case inside an activity String phoneNumber .....
Remove all debug logging calls before publishing: are there tools to do this? http://stackoverflow.com/questions/2446248/remove-all-debug-logging-calls-before-publishing-are-there-tools-to-do-this inline short methods where appropriate. For example here's a very basic ProGuard config for Android dontskipnonpubliclibraryclasses..
custom listview adapter getView method being called multiple times, and in no coherent order http://stackoverflow.com/questions/2618272/custom-listview-adapter-getview-method-being-called-multiple-times-and-in-no-co were associating this issue with layout issues. So in case here's the layout that contains the list xml version 1.0 encoding utf..
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 are all paused . EDIT In response to the comment here's more specifics. Your application currently consists of Activity..
How to make android app's background image repeat http://stackoverflow.com/questions/2706913/how-to-make-android-apps-background-image-repeat android image layout share improve this question Ok here's what I've got in my app. It includes a hack to prevent ListView..
Open another application from your own (intent) http://stackoverflow.com/questions/2780102/open-another-application-from-your-own-intent is how do you want to start the application . Ok... here's what you can try out Create an intent with action MAIN and category..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a MyLocation myLocation.getLocation this locationResult And here's MyLocation class import java.util.Timer import java.util.TimerTask..
Android: Is application running in background? http://stackoverflow.com/questions/3667022/android-is-application-running-in-background time I strongly recommend to refrain from using it. And here's why. As Dianne Hackborn wrote These APIs are not there for..
Enable GPS programatically like Tasker http://stackoverflow.com/questions/4721449/enable-gps-programatically-like-tasker power manager widget. see this xda thread for discussion. here's some example code i use private void turnGPSOn String provider..
Custom filtering of intent chooser based on installed Android package name http://stackoverflow.com/questions/5734678/custom-filtering-of-intent-chooser-based-on-installed-android-package-name package name which I can figure out how to do as well. But here's where I get stuck. As far as I know Intent.createChooser takes.. to exclude other activities from the list so it seems there's no way to do what you want to do using the chooser. EDIT That's..
How to Set a Custom Font in the ActionBar Title? http://stackoverflow.com/questions/8607707/how-to-set-a-custom-font-in-the-actionbar-title I agree that this isn't completely supported but here's what I did. You can use a custom view for your action bar it..
How to close Android application? http://stackoverflow.com/questions/2092951/how-to-close-android-application that are started by the menus. The same goes for the SEARCH key. Below is some example classes to illustrate Here's an example of a root activity that kills the application when it is destroyed package android.example @author Danny Remington.. public void onDestroy super.onDestroy Kill application when the root activity is killed. UIHelper.killApp true Here's an abstract activity that can be extended to handle the HOME key for all activities that extend it package android.example.. UIHelper.homeKeyPressed true return true public boolean onSearchRequested Disable the SEARCH key. return false Here's an example of a menu screen that handles the HOME key @author Danny Remington MacroSolve package android.example import..
NoClassDefFoundError - Eclipse and Android http://stackoverflow.com/questions/2247998/noclassdeffounderror-eclipse-and-android was working fine. Since having added the scoreninja jar I now get a NoClassDefFoundError when I try to run the app. Here's the message 02 11 21 45 26.154 ERROR AndroidRuntime 3654 java.lang.NoClassDefFoundError com.scoreninja.adapter.ScoreNinjaAdapter..
http://stackoverflow.com/questions/2395661/android-tabs-at-the-bottom b setting the tabwidget's gravity to bottom Thanks llappall android tabwidget share improve this question Here's the simplest most robust and scalable solution to get tabs on the bottom of the screen. In your vertical LinearLayout put..
What are the best practices for SQLite on Android? http://stackoverflow.com/questions/2493331/what-are-the-best-practices-for-sqlite-on-android MAY be able to use multiple connections and your reads will be faster but buyer beware. I haven't tested that much. Here's a blog post with far more detail and an example app. Android Sqlite Locking Updated link 6 18 2012 Android Database Locking..
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 question The other answers explained how to send the intent but they didn't explain well how to handle the response. Here's some sample code on how to do that protected void onActivityResult int requestCode int resultCode Intent imageReturnedIntent..
Android - HorizontalScrollView within ScrollView Touch Handling http://stackoverflow.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling from just within my horizontal scrollview but still allow for normal vertical scrolling elsewhere in the scrollview Here's a sample of my code public class HomeFeatureLayout extends HorizontalScrollView private ArrayList ListItem items null private..
How to send a JSON object over Request with Android? http://stackoverflow.com/questions/3027066/how-to-send-a-json-object-over-request-with-android receiving HTTP you can use standard Java code. I'd recommend using the Apache HTTP client which comes with Android. Here's a snippet of code I used to send an HTTP POST. I don't understand what sending the object in a variable named jason has..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a a list of nearby businesses. It doesn't need to worry about if the user is moving around or anything like that. Here's what I'd like to do Show the user a list of nearby locations. Preload the user's location so that by the time I need it.. you the best results. Is there a simpler way to accomplish this android geolocation share improve this question Here's what I do First of all I check what providers are enabled. Some may be disabled on the device some may be disabled in application.. I have to use last known values. I grab last known values from available providers and choose the most recent of them. Here's how I use my class LocationResult locationResult new LocationResult @Override public void gotLocation Location location..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible trying to run two AsyncTasks at the same time. Platform is Android 1.5 HTC Hero. However only the first gets executed. Here's a simple snippet to describe my problem public class AndroidJunk extends Activity class PrinterTask extends AsyncTask String..
How do I do a lazy load of images in ListView http://stackoverflow.com/questions/541966/how-do-i-do-a-lazy-load-of-images-in-listview are downloaded The number of images is not fixed. android image url android listview share improve this question Here's what I created to hold the images that my app is currently displaying. Please note that the Log object in use here is my..
Capture Image from Camera and Display in Activity http://stackoverflow.com/questions/5991319/capture-image-from-camera-and-display-in-activity return back and display that image in the activity. android image camera capture share improve this question Here's an example activity that will launch the camera app and then retrieve the image and display it. package edu.gvsu.cis.masl.camerademo..
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 so the common information is located at the top. 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.. much if you have only 20 items or so but if you use that technique for big lists you're just wasting precious memory Here's an example void getItemViewType int position return isItemAtPositionSeperator position 1 normal item 0 void int getViewTypeCount..
How to call Android contacts list? http://stackoverflow.com/questions/866769/how-to-call-android-contacts-list contact list. I need to call the contacts list function pick a contact then return to my app with the contact's name. Here's the code I got on the internet but it doesnt work. import android.app.ListActivity import android.content.Intent import..
How to make an Android Spinner with initial text “Select One” http://stackoverflow.com/questions/867518/how-to-make-an-android-spinner-with-initial-text-select-one item which is not what I want. How can I fix this problem android android spinner share improve this question Here's a general solution that overrides the Spinner view. It overrides setAdapter to set the initial position to 1 and proxies..
Changing the background drawable of the searchview widget http://stackoverflow.com/questions/11085308/changing-the-background-drawable-of-the-searchview-widget android styles android actionbar searchview background drawable share improve this question Intro Unfortunately there's no way to set SearchView text field style using themes styles and inheritance in XML as you can do with background of items.. local drawable. NOTE I was using Holo Light theme as base but you can do the same with Holo Dark . It seems that there's no real difference in selected state 9 patches between Light and Dark themes. However there's a difference in 9 patches.. Dark . It seems that there's no real difference in selected state 9 patches between Light and Dark themes. However there's a difference in 9 patches for default state see Light vs Dark . So probably there's no need to make local copies of 9 patches..
Android custom ListView unable to click on items http://stackoverflow.com/questions/1121192/android-custom-listview-unable-to-click-on-items id @ id UpdateCheckBox android layout_width wrap_content android layout_height wrap_content LinearLayout And here's the class that extends the ListActivity. Obviously it's still in development so forgive the things that are missing or might..
How did Google manage to do this? Slide ActionBar in Android application http://stackoverflow.com/questions/11234375/how-did-google-manage-to-do-this-slide-actionbar-in-android-application android layout android widget android actionbar android side navigation share improve this question In fact there's a way to do this. Even without implementing your own ActionBar. Just have a look at the hierachyviewer Located in the tools.. Even without implementing your own ActionBar. Just have a look at the hierachyviewer Located in the tools directory There's the DecorView and a LinearLayout as a child. This LinearLayout contains both the ActionBar and the other content. So you.. with your menu ListView and overlay the other content with a FrameLayout that when it's clicked collapses the menu. So here's some code First the class for collapsing expanding SlideMenu.java package your.cool.app import android.app.Activity import..
http://stackoverflow.com/questions/14083950/duplicate-id-tag-null-or-parent-id-with-another-fragment-for-com-google-androi container false catch InflateException e map is already there just return view as it is return view For good measure here's map.xml R.layout.map with R.id.mapFragment android id @ id mapFragment xml version 1.0 encoding utf 8 LinearLayout xmlns..
Android: Binding data from a database to a CheckBox in a ListView? http://stackoverflow.com/questions/1505751/android-binding-data-from-a-database-to-a-checkbox-in-a-listview that overrode newView bindView or getView depending on what you override ResourceCursorAdapter is a good one . Ok so here's an example. I didn't test to see if it would compile because I'm at work but this should definitely point you in the right..
Is it possible to have multiple styles inside a TextView? http://stackoverflow.com/questions/1529068/is-it-possible-to-have-multiple-styles-inside-a-textview way to do this android styles textview share improve this question In case anyone is wondering how to do this here's one way Thanks to Mark again mBox new TextView context mBox.setText Html.fromHtml b title b br small description small..
http://stackoverflow.com/questions/1945142/bitmaps-in-android heap and Dalvik's heap is that Dalvik's heap is garbage collected and the native one isn't. For these purposes though here's not much difference. When your Bitmap object gets garbage collected it's destructor will recycle the associated memory in..
how to connect android emulator to the internet http://stackoverflow.com/questions/2039964/how-to-connect-android-emulator-to-the-internet emulator share improve this question I think some of the answers may have addressed this however obliquely but here's what worked for me. Assuming your problem is occurring when you're on a wireless network and you have a LAN card installed..
How do I load a contact Photo? http://stackoverflow.com/questions/2383580/how-do-i-load-a-contact-photo BitmapFactory.decodeByteArray thumbnailBytes 0 thumbnailBytes.length return thumbnail finally cursor.close And here's a typical use case inside an activity String phoneNumber ... QuickContactBadge badge QuickContactBadge view.findViewById..
Remove all debug logging calls before publishing: are there tools to do this? http://stackoverflow.com/questions/2446248/remove-all-debug-logging-calls-before-publishing-are-there-tools-to-do-this other undesired statements empty blocks and can automatically inline short methods where appropriate. For example here's a very basic ProGuard config for Android dontskipnonpubliclibraryclasses dontobfuscate forceprocessing optimizationpasses..
custom listview adapter getView method being called multiple times, and in no coherent order http://stackoverflow.com/questions/2618272/custom-listview-adapter-getview-method-being-called-multiple-times-and-in-no-co and without getting a good answer I did notice that people were associating this issue with layout issues. So in case here's the layout that contains the list xml version 1.0 encoding utf 8 LinearLayout xmlns android http schemas.android.com apk..
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 where your service is running in the background and the activities are all paused . EDIT In response to the comment here's more specifics. Your application currently consists of Activity derived and Service derived classes for the most part. Inherently..
How to make android app's background image repeat http://stackoverflow.com/questions/2706913/how-to-make-android-apps-background-image-repeat android background @drawable bg android tileMode repeat android image layout share improve this question Ok here's what I've got in my app. It includes a hack to prevent ListView s from going black while scrolling. drawable app_background.xml..
Open another application from your own (intent) http://stackoverflow.com/questions/2780102/open-another-application-from-your-own-intent is up and running the process . So what you have to identify is how do you want to start the application . Ok... here's what you can try out Create an intent with action MAIN and category LAUNCHER Get the PackageManager from the current context..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a Location location Got the location MyLocation myLocation new MyLocation myLocation.getLocation this locationResult And here's MyLocation class import java.util.Timer import java.util.TimerTask import android.content.Context import android.location.Location..
Android: Is application running in background? http://stackoverflow.com/questions/3667022/android-is-application-running-in-background While this solution may work and it indeed works most of the time I strongly recommend to refrain from using it. And here's why. As Dianne Hackborn wrote These APIs are not there for applications to base their UI flow on but to do things like..
Enable GPS programatically like Tasker http://stackoverflow.com/questions/4721449/enable-gps-programatically-like-tasker question the GPS can be toggled by exploiting a bug in the power manager widget. see this xda thread for discussion. here's some example code i use private void turnGPSOn String provider Settings.Secure.getString getContentResolver Settings.Secure.LOCATION_PROVIDERS_ALLOWED..
Custom filtering of intent chooser based on installed Android package name http://stackoverflow.com/questions/5734678/custom-filtering-of-intent-chooser-based-on-installed-android-package-name string or variation of strings contained within the package name which I can figure out how to do as well. But here's where I get stuck. As far as I know Intent.createChooser takes only a single target Intent as a parameter. I was hoping.. a ACTION_CHOOSER. I haven't found any way in Android sources to exclude other activities from the list so it seems there's no way to do what you want to do using the chooser. EDIT That's really easy to find out. Just check ChooserActivity and..
How to Set a Custom Font in the ActionBar Title? http://stackoverflow.com/questions/8607707/how-to-set-a-custom-font-in-the-actionbar-title android fonts android actionbar share improve this question I agree that this isn't completely supported but here's what I did. You can use a custom view for your action bar it will display between your icon and your action items . I'm..
|