Android ::assign Key To Each Field To Reference In Java
Aug 16, 2010Trying to assign a key to each field in android to reference in Java.
View 1 RepliesTrying to assign a key to each field in android to reference in Java.
View 1 RepliesIn 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'"
If I assign an integer value to change a certain text size of a TextView using java code, the value is interpreted as pixel (px), now does anyone know how to assign in sp?
View 1 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.
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?
I am trying to develop an app to supplement the built-in music player. I've used git to download the com.android.music package and looked around at its code. I can launch the music player by copying some of its code and launching activities with intents.
Now what I need to do is get a handle to its current view. In the MusicUtils.java file, I see a line that says
View nowPlayingView = a.findViewById(R.id.nowplaying);
I'd like to do the same thing. Only I don't have access to the R.java file, so I can't write e.g. R.id.nowplaying. How do I do this? How do I reference the music players R.java? I do know the R.java stuff is declared public so that shouldn't be a problem. Right?
Is it even possible? I saw this related question and am now wondering: http://stackoverflow.com/questions/2437271/how-to-load-com-android-music-code-into-eclipse-and-compile
I'm working against the Android 2.2 SDK, but it'd be helpful to know if the answer is different for older versions such as 1.5.
i have two files
App.java
Gallery.java
App. java contains frontend buttons and functionalities Gallery.java lists the imagesin the sd card. i want to call Gallery.java in click event in app.java
App.java
package gallery.display;
import android.app.Activity;
import android.os.Bundle;
import android.view.View.OnClickListener;
import android.view.View;...........
I'm trying to call a java method from javascript using addJavascriptInterface(); but seems does not work, it always display "failure"; java code...
View 2 Replies View RelatedJava packages like Java.io, Java.Lang etc used in android, are they different from Java packages in windows ? means specially made for android ?
View 2 Replies View RelatedTo 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?
View 3 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 RelatedI am running a server application on emulator. I want to connect to the server through a client application running on other system. How to get the IP of the emulator and what should be the http-proxy IP of the emulator.
View 3 Replies View RelatedIf I run multiple emulator on same desktop, is there anyway that I can assign an ip address to each of them (for testing purpose). So that each emulator can communicate to another using ip address?
View 2 Replies View RelatedI created an application that starts a service. This service is expected to run in background. This service has to access the Location. I am currently unable to do so I have given permission to my Manifest file I think the issue is that the application has the permission, but the Service does not ! What happens is that the service keeps running even if the application is stopped .Does the Service need special / different permissions ? How do I assign permissions to Service ( my service class extends : Service).
View 2 Replies View RelatedI've written an Intent which selects a photo from the gallery. The idea is that the image chosen is received within the onActivityResult() method. On the emulator, I have no images, and it simply says "No media found". How do I assign images which are picked up within the emulator, so that I have something to choose from?
View 5 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 Related