I have a Timer in my application, and would like to allow the user to set the timer, and maybe cancel it in another execution of the application. To do that, I need to have a reference to the Timer created in the first execution. How can I obtain that? Is there a way of storing/retrieving memory addressed?
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Object getThisObjName= new Object();
I'd like to get the name of an object reference.
Is this possible via reflection in Android?
I am trying to get a reference to the android internal class PhoneWindow (android.policy.PhoneWindow) object from an application. I would like to call a method on it (specifically I would like to call getDecorView on PhoneWindow). How do I do this?
View 2 Replies View RelatedI thought when you passed objects to methods in Java, they were supposed to be by value.
public class MyClass{
int mRows;
int mCols;
Tile mTiles[][]; //Custom class
//Constructor
public MyClass(Tile[][] tiles, int rows, int cols) {..........
At this point, any changes to the mTiles object are reflected back to the tiles object.
In my Android application, I have to call the getSharedPreferences in non-activity classes. In order to avoid passing a Context object to each constructor of these classes (and because many of them are classes with only static methods which don't have a constructor), I have implemented these steps : The main activity of my application (which is launched at startup) is called Dispatcher. In the onCreate method of this class, I keep a reference to the created Dispatcher object in a static public variable of the Dispatcher class which can be accessed from any class in the project.
View 2 Replies View RelatedDoes anyone know of an app where I can download a map and then save it for future reference?
View 3 Replies View RelatedDoes someone know how to save and restore an object to a file on android ?
View 2 Replies View RelatedI created an application with loging and an arraylist to fill a ListView.
If i am calling or i need to check my mail, sometimes i lost the context of my application (variables and the listview !)
It is a little complex to save arraylist in SharedPreferences and i am not an expert in SQLite.
Do you know a solution to keep persistent my data (variables and the arraylist) during the use of my application?
Say I have some simple class and once it's instantiated as an object I want to be able to serialize its contents a file, and retrieve it by loading that file at some later time.. I'm not sure where to start here, what do I need to do to serialize this object to a file?
View 2 Replies View RelatedI need to know how he takes drawable object. I'm collecting some ImageView objects in array, they have background images that are rather big in resolution so they take lot of memory...
I have read somewhere that it will automatically create image with resolution that my imageView have, so i think it will take less memory than first one. Please tell me, if i set scaleType property, will it scale that image? Will that help me to save memory?
I want to do some automated testcase with Instrumentation . Suggest that my AUT has 2 Activity. After clicking the button in ther first Activity, the second one will be shown with new content base on what we enter in the first Activity.) Instrumentation provides us the function called startActivitySync() and return the Activity object for processing. My question is how we can get the pointer of the second Activity after the it is shown by clicking the button on the first activity.?
View 2 Replies View RelatedI would like to convert a Picture object to Bitmap object in memory, without writing data to disk.
View 2 Replies View RelatedI have an Activity that running on system. I can get the Intent that is used to start the activity. But i don't know how to get the Activity object from the Intent object or something else. Can anyone tell me how to do this??? Note that, I don't use Instrumentation object.
View 11 Replies View RelatedI am trying to get a FileInputStream object on an image that the user selects from the picture gallery.
This is the android URI returned by android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI content://media/external/images/media/3
When I try to construct a java URI object from this object, I get an IllegalArgumentException with the exception description Expected file scheme in URI: content://media/external/images/media/3 whereas the android URI shows the scheme as content
Never found a solution for the original question. But if you want the byte stream of an image in the pictures gallery, this piece of code will do that.
CODE:...................
To be plain, the android / xml widget reference material is poor at best.Rather than approaching the controls from an xml point of view, its all driven from a class point of view, which is clunky when you want to figure out how to build a good xml UI.Is there any decent documentation with design in mind (tag names, attribute names, etc) or is it just figure it out and struggle through the best you can? I'm on my 2nd android app and losing patience with hunting and pecking for the correct attributes / tags.
View 2 Replies View RelatedIs there one? I have "Professional Android 2 Application Development" by Meier and "Teach Yourself Android Application Development in 24 Hours" by Darcy/Conder. Both are mediocre at best. Neither is a decent REFERENCE, but rather they are basically structured as tutorials, without nothing in the way of reasonably comprehensive API documentation (which also, BTW, is woefully inadequate on the android.com site). And no sort of in-depth discussion of the structure of the system, so one could perhaps understand it rather than simply using the (inadequate) cookbooks.
View 19 Replies View RelatedIs there any sort of xml reference?
I found this which turned out to be invaluable for me http://groups.google.com/group/android-developers/msg/d334017d72909c79
but I can't figure out how I was supposed to know how to do that, had I not found that post.
I know that the api reference has xml attributes listed for many of the classes... but what about xml tags? Where is it documented that I could build a shape using <padding>, <corners>, <solid> tags?
I'd really like to know where I can find such documentation.
I want to write an application that will log down whatever I type using the Android keyboard.
The purpose is to have a backup of all the keyboard entries.
Is it possible?
I have a custom view that needs a reference to the activity that created it.Dianne Hackborn said in another thread: >Give your view a reference to the activity (or a Java interface it implements) and call back through that. >Much much MUCH more efficient than sending a broadcast. >See all of the standard view and view subclass callbacks for examples.
View 9 Replies View RelatedHow i can get a reference to the digital keyboard? is the keyboard added to the activity? how i can set a other style to the keyboard? Where i get a documentation of the digital keyboard?
View 2 Replies View RelatedI have a jar that I need to reference from my Android project. I also have the src of the jar, so I could include it in the project itself. I was wondering if referencing a jar vs. compiling it in with the project using Dalvik makes any difference in terms of final Dalvik package size that gets generated.
View 1 Replies View RelatedI have an object that is used for calling callback functions ----- static jobject o;
I have assigned the callback function to that object through a pointer, env -----
o=env->NewGlobalRef(callback);
The same pointer, env, points towards the function CallVoidMethod( ) that uses JNI to reach to the java code.
env->CallVoidMethod(o, methodId, pDeviceId, deviceStatus, statusReason, connectionProgressInfo);
However on calling this function, the system is getting crashed, and VM says that it's an invalid reference to static jobject o and then it crashes.
My code is as follows :
CODE:..........................
I have a tab with an activitygroup as the intent of tab1.
My code of the activity(group):
CODE:..................
Where can i find a Reference Chooser like this: http://www.vogella.de/articles/Android/images/first46.gif
View 2 Replies View RelatedI've created a class that extends drawable that I'd like to reference inside a resource xml.
I happen to need it in a selector, like so:
CODE:.................................
I am developing a study project using the mosembro (mobile semantic browser) project inside my Android project. I am using Eclipse and I created my project, downloaded / imported mosembro and included in my project's build path.
So now my code needs to refer to a resource in the mosembro's project. I want to do something like this: String commonJS = getScript(R.raw.common);
In this snippet, I want to load a javascript file from mosembro's project: res -> raw -> common.js so I need the java syntax to get "R" (precompiled resource-class) of Mosembro from my HelloGoogle project.
What is the syntax to replace the R-class of this with the included project's R-class.
How do you get a reference to the window from outside of an Activity or from the context? Is it possible to access the window without having a reference to an activity?
View 1 Replies View Relatedinstead of referring the custom widget by a fully qualified class name, is it possible to map with a shorter name. Like it happens in ant custom tasks (though properties file).
View 4 Replies View RelatedIn my layout xml, I have: <TabHost android:id="@+id/tabhost" android:layout_width="fill_parent" android:layout_height="fill_parent">
<TabWidget android:id="@android:id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content"/>
</TabHost>
My question is how can I get a reference to TabWidget object. I tried this: mTabWidget = (TabWidget) findViewById(com.android.internal.R.id.tabs); but this won't compile since 'com.android.internal.R is not visible. And then I try change the id to android:id="@+id/tabs" but I get a run time error saying: "Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs'"
how will you know that this thumbnail points to which actual image in the SD card. I have a problem with MediaStore.Images.Thumbnails displaying blank previews. Though I followed mihai fonoage part 2 on how to load it properly by using scaling. Still, I got duplicate images. So instead of using MediaStore.Images.Thumbnails I used MediaStore.Images.Media instead but it loads the actual image but oading is too slow even if bitmap is scaled. That's why I was wondering if there's a way to know which actual image is the thumbnail pointing or is there a way to know the exact location of the thumbnail for this actual image (The other way around).
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