I'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:.................................
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I'm building a small Android application, but this is more of a Java question than an android question. Looking through the tutorials there are lines that look like: startService(new Intent(this, MyService.class));
What exactly does the "MyService.class" field represent? Is that just a reference to the class for a template?
This is specifically about android UI xml.
Can a drawable ie the ,/drawable> tags accept a reference to a ninpatch xml file?
Is it possible to have subfolders in the /res/drawable directory. I would like my resources to be organized in a tree view and not in a flat dir. If it is possible so how do I reference the resource from the code?
I have this code...
how can I reference Home class here to replace **this**, which as it is points to OnSeekBarChangeListener.
I want to have a class "Utils", that will have several methods used all over my code. For example, I have a top bar with a textview and two ImageButtons that must display different texts and icons on different activities.I created the class Util, but it doesn't extend Activity. The problem is that if it doesn't, findViewById isn't there, can't find stuff etc.
View 1 Replies View RelatedI want to pass a class reference to an activity, and then the activity will construct the view according to the content of the class.
How could I implement this function?
So I'm defining a class that sets a Drawable attribute in an object. The problem is that I can't access the getResource().getDrawable(int resourceId) method unless I have some Context.
So what I did was to send to that class an activity instance (let's call it "act") and then I did:
act.getResources().getDrawable(R.drawable.whellchair)
but, when executing that line it throws a NullPointerException.
When idea how to accomplish this?
I am running my application in the emulator using a high density skin (like WVGA800). However the ressources in my application are loaded from the drawable- mdpi folder instead of drawable-hdpi ... what else should I do so that android use the correct folder ?
View 4 Replies View RelatedI'm creating a new class, using eclipse "New Java Class" dialog box. I can write the superclass I want (I can't find using "browse" button), but I can't write or select an interface to implement. I click "add" but ther is nothing to select. What I'm doing wrong?
View 4 Replies View RelatedI'm just getting into Android development, and I have a question about communicating between a receiver class and an activity class. I'm very new to JAVA and Android so I hope I don't sound too stupid. I'm developing an application where I intercept an SMS message and then based on various elements of that SMS I might delete it once it's been saved to the inbox. I have a receiver class that intercepts the txt message, and I am also able to delete messages from my inbox with code in the activity class using a button at the moment. The problem I have is communicating between the receiver class and the activity class where the code to delete a message resides. I tried putting that code directly into the receiver class but as I'm sure most of you already know the BroadcastReceiver class doesn't seem to support what I need to delete messages. I've been searching for an answer to this for a while, but haven't been able to find anything. Honestly I'm not sure I know enough about JAVA and Android to even recognize a solution if I saw it.
View 2 Replies View RelatedWhat I want to do, is be able to access the object neoApi inside the Neoseeker class, from its inner class RunningTimer. Now, in my code, you can see what I would think to work, but when I run my application, nothing pops up. Nothing inside my TextView, no Toast, nothing at all. How can I remedy this?
package com.neoseeker.android.app;
import java.util.Timer;
import java.util.TimerTask;
import org.json.JSONObject;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;.......................
I'm new to Java and android development. In my application I need data which is accessible for a few activities. I've read that a good solution is to use Application class for this. So I use it like this:
public class MyApplication extends Application {
private String str;
public String getStr(){
return str;
}
public void setStr(String s){
str = s;
}
}
and I can access this variable from activity like this:........................................
I have just started android. I just want to know that how can i call activity class from other java class. i just want to pass class object to activity class.
public class GsonParser extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MagazineThread thread=new MagazineThread();
thread.start();
}
public GsonParser(JsonMagazineParser Obj)
{
}
}
and i am just doing like from other class. GsonParser obj=new GsonParser(this);passing obj to activity class.how can i achieve that.
In my app in one package there are some classes. from those classes i want to run one class that is the Gps functionality class. i want to run that class in background. how i do it, i don't know. i am not able to make it solve from any document. if anybody knows the way to solve it please me by run a "hello world" app in the background. i am not able to solve this problem by going through document.
View 2 Replies View RelatedI made a Dialog Class with it's view classI want to pop up the dialog when I got some packets from network. so I made a Thread which parses packets and then I made if clause in Run() method There is no problem with parsing packet but when I enter "if clause" and call showDialog() I got Error message
Is there anyone who knows how to pop up a dialog from different thread?
I created a method called insertTable in a class called Table but i can't use it in my onClick method in the main class :
CODE:.......
I want to do a income.insertTable in the onClick method but eclipse say that i need to create a local variable.
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:..........................
Object getThisObjName= new Object();
I'd like to get the name of an object reference.
Is this possible via reflection in Android?
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 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 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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