Android :: Set Activity Object To Application?

Apr 26, 2009

When start the activity i will set the activity object to the Application, and i will registry it in the Appication app = MyApplication.getApplication(this);

1. Start Activity A store A id 0x12345678
2. Activity A -> Activity B
3. Store B id 0x87654321
4. Finish B activity
5. but the Activity B object not null in the Application

Android :: set activity object to Application?


Android :: How Can I Get Current Activity Object In Instrumentation Object?

Sep 9, 2009

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.?

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Android : Get Activity Object From Intent Object

Sep 21, 2009

I 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.

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Android :: Get KeguardScreenCallback Object In My Own Activity?

May 25, 2009

Is there someone could tell me how to get the KeguardScreenCallback object in my own Activity(For Example,the class of LockScreen,it has a parameter called "callback" in it's constructor,I want to get the "callback" in my activtity).so I can call the goToUnlcokScreen method to remove the screen lock.Or there maybe other way to do this?(I know KeyguardManager,so except this way first.

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Android :: Pass An Object From One Activity To Another?

Aug 28, 2009

I have an activity which implements an OnItemClickListener.code...

However, I need to pass some objects from MyActivity1 to MyActivity2 --

I see there is an Intent.putExtra() for all the basic types, and I even see a Bundle which is a collection of basic types, but how can I pass a generic "Object" to MyActivity2 ?

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Android : How To Pass Object From An Activity To Another

Oct 15, 2009

There is an activity which has an object. This activity(say A) starts another activity(say B). Can B use some object in A?

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Android :: Get Activity Object While In View Context

Oct 10, 2010

This is a followup to this post: http://stackoverflow.com/questions/3897176/findviewbyid-in-a-subclassed-surfaceview-throwing-runtimeexception Based on Romain Guy's feedback (which I'll accept shortly as it is a solution), I'd like to obtain the calling Activity from within the View, so that I can use it to obtain the desired Text View resource. I don't see any methods in View that return Activity. What is the proper way to do this? Or is there a better alternative for working with TextViews from within another View context. Basically, I am calling setContentView(R.layout.xxx) in onCreate() (as usual), so I don't really have a way to pass in references to additional TextViews unless I awkwardly retrieve the View after setContentView and then make calls on it.

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Android :: How To Pass A Bitmap Object From 1 Activity To Another

Mar 17, 2010

In my activity , I create a Bitmap object, and I need to launch another activity,
How can I pass this Bitmap object from the sub-activity (the one which is going to be launched)?

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Android :: Way To Pass An Object Array To An Activity

Nov 15, 2010

I have read posts on passing arrays from and to activities, but I am confused as to how I would do it for my specific case.

I have an array of objects called DaysWeather (a DaysWeather[] array) where the objects have several String attributes as well as a bitmap attribute. I read somewhere that you have to make it serializable or parceable or something, but it seems messy at first glance.

Could someone lead me in the right direction?

Is there a simple way to do this?

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Android :: How To Pass An Object To An Activity Via Intent.putExtra?

Aug 7, 2009

I am developing an app that connects to a server. For that connection I created a class Client that maintains info about the connection . My app consists of several Activities and each of that Activity needs access to the Client object to communicate to the server. 1) Can I put somewhere the Client object so that all Acitvities have an access to it? 2) If not I would probably need to pass the object to each Activity via Intent.putExtra(). But putExtra doesn't accept Object as an argument. It only accepts several types like int, long, String etc. So how can I pass an object to another Activity?

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Android :: Why Is Parcelable Object Null In Receiving Activity?

Aug 16, 2010

I am following the Parcelable example in the Android developer guide with the intention of having a more complex object that I send to different activities. Right now, my class is a wrapper of a String member. If I put the object in the intent and read it back from the Intent it reads as expected, however, on the receiver side, it is always null-pointer.

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Android :: When Does Activity Object Really Get Killed After Calling Finish()

Nov 5, 2010

I created a thread in my activity, and that thread will print out the value of my instance variables in my activity after running for about 10 seconds. I pressed the back key to destroy my activity before the thread prints out the values, and when the thread reaches that line of code, it can still print out the values correctly. That means even though the activity is finished, the java object of the activity is still there. Will the object always be there? Or it is just waiting to be GCed? Or it will be killed only when Android needs memory?

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Android :: Invoke Changes To A Custom View Object From Its Activity?

Nov 7, 2010

I have a custom view that draws to a canvas. I am trying to invoke changes to the canvas when the user pushes a button from the activity that this view is tied to. Currently, I am attempting to do this by calling a public method, called setNewDrawable, that I created inside the view.

The debugger is giving me different values for the view ID depending on whether I'm inside setNewDrawable or inside the Overridden onDraw method when I post an Invalidate.

For example the debugger variables show: (This - MyView id=830067720176) or (This - MyView id=830067712344) in setNewDrawable and onDraw respectively. This makes me think I basically have two copies of the object and I am essentially interacting with the wrong one.

How can I get information to my custom View in order to determine what it draws?

Here is the code I am running...

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Android :: Getting Error / Pass Activity Object To My New Class?

Mar 26, 2010

I want to show messageBox or notification when connection lost in Static DB class but i cant use getApplicationContext() because its a static class and i tried to call other class called notification but i have error so how i could pass activity object to my new class .

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Android :: Share An Object Between A Running Service And Activity?

Aug 8, 2010

I have an API Object that I made, and I would like to share it between a running Service and various Activities in my app, almost like if I was to make the class static. How could I go about sharing the created object between the two?

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Android : Create A Surface Object Without A Foreground Activity

Jul 6, 2010

I have a function that needs a Surface object to work. I'd like to be able to call that function from a background Service without starting a foreground Activity. Every Surface source in the API that I can see, though, requires a View that's laid out before the Surface becomes available. Are there other ways to create a Surface that I am missing, and can you point me to them?

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Android :: Cannot Call Method Of View Object Inside Activity

Nov 7, 2010

In my program I have a custom view object. Inside the view class is a method called foo. For some reason when I call foo from my activity, it doesn't fire. Here is the code:

XML of the custom view:
<com.company.application.MyView android:id="@+id/my_view" android:layout_width="wrap_content" android:layout_height="wrap_content" />

The activity code:
public class Main extends Activity { MyView mView;
/** Called when the activity is first created. */
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); setContentView(R.layout.main);
LayoutInflater li = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = li.inflate(R.layout.main, null); mView= (MyView) v.findViewById(R.id.my_view);
//A button to fire the method inside foo() Button switchLeft = (Button) findViewById(R.id.switch_left); switchLeft.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { callTest(); } } );
} public void callTest() { Log.w(this.getClass().getName(), "clicked left arrow");
mView.foo(); mView.postInvalidate();
} }

Finally here is foo:
public void foo() { mBackground = mContext.getResources().getDrawable(R.drawable.temp_canvas); Log.w(this.getClass().getName(), "background set");
}

The first log is always written when the button is pressed, but the second log is not because foo never fires. What is the deal here? Upon request, the full view

public class MyView extends View { Drawable mBackground; Context mContext;
public MyView (Context context) { super(context); mContext = context;
mBackground = mContext.getResources().getDrawable(R.drawable.leftarrow1);
} public MyView (Context context, AttributeSet attrs) {
super(context, attrs); mContext = context;
mBackground = mContext.getResources().getDrawable(R.drawable.leftarrow1);
} public void foo() { mBackground = mContext.getResources().getDrawable(R.drawable.temp_canvas);
Log.w(this.getClass().getName(), "background set"); }
@Override public void onDraw(Canvas canvas) { Paint paint = new Paint();
paint.setStyle(Paint.Style.FILL); // draw a solid blue circle
paint.setColor(Color.BLUE); canvas.drawCircle(20, 20, 15, paint);
// draw a test background mBackground.setBounds(0, 0, 300, 400);
mBackground.draw(canvas); }
}

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Android :: How To Send Object From Droid Activity To Another With Intent.putExtra?

Nov 24, 2010

Can anyone guide me as to how I can pass an object of a custom type from one Activity to another with the putExtra() method of Intent?

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Android :: Pass User Define Object Between Service And Activity?

Aug 21, 2009

I define a class Rect and a aidl file as below. code...

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Android : Way To Get Hashtable Object Form A Class To Activity In Droid?

Feb 23, 2010

I want to get the hashtable object from non activity class to activity class an android..

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Android :: Application Level Object ?

Oct 11, 2009

I want a application level object in Android.Here is the scenario... Suppose I want to pass a object from Activity A to Activity B then to Activity C D......... Then I will have to pass that object from Activity A to B then to C then to D....... Passing the Parcel Through the Bundle. Is there a Object in Android which can be accessed by all the Activities and its lifetime is same as the lifetime of the application.

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Use BufferedImage Object In Android Application?

May 10, 2012

it's possible to use BufferedImage object in android application.

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Android :: Application Object Life Cycle

Sep 30, 2009

When I start my application I prompt the user for the password and use it to instantiate my data adapter object that I will need throughout the application. So I store it in Application object. My activity A prompts user for pwd, instantiates data adapter, sticks it to Application object and later starts activity B which in turn starts the built int gallery activity. When fooling around with gallery and capturing pictures for some time coming back to activity B I discover that Application.myDataAdapter is null. I found out that during me playing with camera the Application.onTerminate() method was called. So it seems like Android killed my process and when B was supposed to become visible it started a process again jumping directly to activity B bypassing A? Is that how it works? Should I then never assume that Application.myField will survive? and init it not only when A is started but whenever I discover it is null?

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Android :: Using ObjectOutputStream To Send A Document Object To Application

Sep 20, 2010

I am developing an android application at the moment, and i'm facing a problem that i have no idea how to solve. My application communicates with a Tomcat Server, and i'm using ObjectOutputStream to send a Document object to my application from my servlet. There fore, i'm importing org.w3c.dom to my project. The problem i'm facing is, that I can't read the Document object with ObjectInputStream on my android device. I'm getting the following exception.

CODE:..................

I can send and recieve any object i want without any problem, but when I try to send an object refered to the com.w3c.dom package I get this exception.

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Android :: HCan I Create A 3D Object In Droid Application?

Oct 13, 2010

Kindly give me the way to create a 3D object in android application

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Android :: Object Of Contact Application Search Option?

Apr 9, 2010

I am wondering what is the kind of object that shows up when in the Contact application, you hit search option, what is it ? a Custom Quick Search Bar, a custom notificaction bar, other idea ...

An image of what I am talking about is available here code...

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Android :: Cast Picture Object To Bitmap Object

Jun 8, 2009

I would like to convert a Picture object to Bitmap object in memory, without writing data to disk.

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Android :: Best Efficient Data Structure To Store Object In Android Application

Sep 10, 2010

I want to build a data structure in my application to store many entries indexed by keys. Each entry has several parameters to retrieve and update.

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Android :: Application Menu Rather Than Each Activity In Application?

Jul 27, 2009

Is it possible to attach Menu to an application rather than each activity in the application? I have 20-23 activities in my application and it doesn't make sense me to add same menu to all the activities.

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Android : Convert Android.net.Uri Object To Java.net.URI Object

Feb 18, 2009

I 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:...................

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