Android :: Calling An Id In An Xml File In Your Class

Nov 17, 2010

How can I detect whether or not an Image View has a picture in it upon a button click. I had a class that displays a picture and some results, but I don't want the user to be able to access those results (pushing the button) until the results have been written to that class.

So, I figured I needed to check to see if there was a picture displayed in the ImageView yet.

So something like:

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

But obviouslt R.id.photoResultView == null isn't the right way to do it...anyone know how?

EDIT: Line 184

CODE:........

EDIT:

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

Android :: Calling an id in an xml file in your class


Android :: Calling GetSharedPreferences(); From SQLiteOpenHelper Class?

Feb 27, 2010

I have two classes, one MainClass and one DataBaseHelper class, which extends SQLiteOpenHelper.

From my MainClass I call a method in the DataBaseHelper class to open a data base. Before opening the data base I want to check the users data base version (this is important as soon as I want to update the data base and push it to the Android market). So from the DataBaseHelper class I call the following method, which is in the MainClass.

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

I call the checkCurrentDbVersion() method from the DataBaseHelper class like so:

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

As soon as the debugger runs the following line, it stops.

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

I have no constructor defined. Could that be the failure?

View 2 Replies View Related

Android : Droid Calling Intent From Another Class?

Jun 29, 2010

I am calling intents alot in my program and I thought that I could write a public class that would have all of my intents so I can just call something like intents.testIntent(params) and then have it fire off the intent.

I tried it out but am getting a force close with a null pointer exception. This is my whole class. I know it is probably sloppy but I have just been learning java for 2 months so I still am an amateur. Any way, my code...

View 1 Replies View Related

Android :: Calling Function From Receiver Class Not Working

Apr 20, 2010

I have a SMSReceiver class that needs to pass the phone number and message to another class. Which works but when I call that class I need the function to read preference to compare if it needs to execute another function.

View 2 Replies View Related

Android :: How To Stop Service Method Of Calling Activity Class?

Jul 2, 2010

I am trying to call my service class's stopService() method from my activity. But I don't know how to access stopservice method from my activity class. I have the below code but its not working. This is HomeScreen class:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
enablecheck = (CheckBox)findViewById(R.id.enablecheck);
enablecheck.setOnCheckedChangeListener(new OnCheckedChangeListener(){
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
if(enablecheck.isChecked()){
startService(new Intent(HomeScreen.this, AutoService.class));
} else {
stopService(new Intent(HomeScreen.this, AutoService.class));
} } });
}
This is Service Class:
public class AutoService extends Service {
private static final String TAG = "AutoService";
private Timer timer;
private TimerTask task;
@Override
public IBinder onBind(Intent intent) {
return null;
} @Override
public void onCreate() {
Toast.makeText(this, "Auto Service Created", Toast.LENGTH_LONG).show();
Log.d(TAG, "onCreate");
int delay = 5000; // delay for 5 sec.
int period = 5000; // repeat every sec.
timer = new Timer();
timer.scheduleAtFixedRate(task = new TimerTask(){
public void run() {
System.out.println("done");
} }, delay, period);
}
@Override
public boolean stopService(Intent name) {
// TODO Auto-generated method stub
timer.cancel();
task.cancel();
return super.stopService(name);
} }

View 3 Replies View Related

Calling Class - Getting Error And Program Stop Working?

Oct 12, 2011

am trying to call a class from the main and am getting an error and the program is stop working. am trying to call from the main.class the test.class

on the main i have write the following code

Intent connectIntent2 = new Intent(Conn.this, Test.class);
startActivity(connectIntent2);

and on the test.java i have write[code]....

the R.id.button_scan is been define in the main.xml and i just want to make it invisible.

View 1 Replies View Related

Android :: Does The Dalvik File Format - .dx - Support More Instructions Than Java .class File

Apr 17, 2010

Is there anything the Dalvik VM supports (in terms of bytecode) which is not used currently because the .class files don't have it?

As an example, if people would write their own Source-to-DX converter for their functional language XYZ, would they be able to implement e. g. full tail calls although the .class file does support tail calls only under certain circumstances?

View 1 Replies View Related

Android : How To Convert Class File To Dex File

Nov 12, 2010

How to convert class file to dex file in android? Is there any way?

View 2 Replies View Related

Android :: Call Java Class Methods To Other Java Class File On Android

Nov 3, 2010

i hav two classes...both classes are extends activity.. i need call other class method on main class on android development..its urgent..please.. i done something like subclass sub = new subclass()...its not work..
In 1st activity class

package org.me.intent_testing;
import android.app.Activity; import android.os.Bundle; import android.widget.; import android.view.; import android.content.Intent;

/** * * @author pavankumar */

public class FirstActivity extends Activity {................

View 1 Replies View Related

Android :: Jar Of Class File Doesn't Allow Modifications?

Jan 14, 2010

can any one provide me solution to this error "The Jar of this class file belongs to container Android 2.0.1 which does not allow modifications". I have searched a lot to this problem but failed. I am using eclipse with ADT.

View 1 Replies View Related

Android :: Possible To Put Each Class Into It's Own Java File In Eclispe?

Apr 20, 2010

I'm coming over from C# where I can make a namespace and then have each class placed into its own .cs file if I want, but in all of the examples I've seen for android all of the methods and classes are all in one big java file.

Is it possible to put my classes in to their own java files and then import those classes into a main program java file as needed like I do in C#?

View 6 Replies View Related

Android :: Eclipse Class File Metadata

Jun 7, 2010

In Visual Studio, I can obtain a succinct list of public methods/members exposed in a class for which I do not have the source (i.e. bundled inside a DLL) by pressing F12 (GoToDefinition).

Similarly, I am learning the Android API - in Eclipse. Jumping to an Android framework method definition produces decompilation output which is not intuitive to read, and is very verbose. To mimic results like Visual Studio, I am considering several options:

How can I format the decompilation output to be 'cleaner' - I have looked through Eclipse's preferences menus and have not found a way to do this.

How do I 'add corresponding source files' once Google provides it, so that jumping to definition yields the actual definition?

Is there a plugin that does this already? I looked into Jadclipse, but that project has not been updated in several years, and is still a decompiler.

View 3 Replies View Related

Android :: Difference Between File Class And Activity

Aug 17, 2010

What's the difference between file, class and activity in android?

View 3 Replies View Related

Android :: Multiple Versions Of Same Class File For Different SDK Targets?

Nov 5, 2009

This is for an Android application but I'm broadening the question to Java as I don't know how this is usually implemented. Assuming you have a project that targets a specific SDK version. A new release of the SDK is backward incompatible and requires changing three lines in one class. How is this managed in Java without duplicating any code(or by duplicating the least amount)?

I don't want to create two projects for only 3 lines that are different. What I'm trying to achieve in the end is a single executable that'll work for both versions. In C/C++, you'd have a #define based on the version. How do I achieve the same thing in Java?

View 5 Replies View Related

Android :: Error - Unable To Fnd Class R.java No Such File Or Dir

Oct 18, 2010

I keep getting this when trying to start a new project

ERROR: Unable to open class file C:UsersLeviDesktopAndroidworkspaceDroid1gencomandroidbookdroid1R.java: No such file or directory

I tried changing preferences to alter build path to project, but it still wouldnt work,,,

Is subfolder on desktop a bad place to install Eclipse?

View 4 Replies View Related

Android :: Loading 3D Models - OBJ File Into My Own Model Class

Mar 11, 2009

How are people here loading in their models? I'm just manually parsing a OBJ file into my own model class and drawing that.

View 4 Replies View Related

Android :: Give Textcolor To Textview In Class File?

Aug 26, 2010

I am creating the custom textview i want to give black textcolor to this textview. how can i set textcolor. my code ...

View 2 Replies View Related

Android : How To Connect Between View In Xml File / Extened Class?

Dec 24, 2009

Is there a way to link inherit class to xml file. I am trying to connect extended class to widget in the xml file.

View 1 Replies View Related

Android :: Loading String Values From File Instead Of List In Class

Nov 1, 2010

I think I have a pretty easy problem to solve, but I have been beating my head against the wall for hours trying to get past it! I have an adapter that loads a list of URLS:
adapter=new MyAdapter(this, lStrings);
list.setAdapter(adapter);

The list of URLS looks like this:
private String[] lStrings={
"http://www.domain.com/file1.jpg",
"http://www.domain.com/file2.jpg",
"http://www.domain.com/file3.jpg",
};

What I want instead is to load these values from a text file that lies on the SD card. For that matter, I would be okay with loading the values from a text file into a String, and then load the String into the list as I imagine that would be the "cleaner approach". However, all attempts to do this have failed. For instance, I replaced the above snippet with this:

private String[] lStrings=
{ MainActivity.this.getString(R.string.myurllist) };
but then I get a Forced Close on loading.

I'm a bit new to Java, Android, and development in general.

View 1 Replies View Related

Android :: Error: Unable To Open Class File R.java / How To Fix It

Sep 26, 2010

Did a fresh install of Eclipse, JDK and android-sdk.

I am currently receiving this error when creating a new project

[2010-09-26 16:07:56 - Test] ERROR: Unable to open class file C:workspaceTestgencomexample estR.java: No such file or directory

What's the reason for this and how I fix it?

Eclipse Helios 32 bit
java version "1.6.0_21"
Android sdk API 8

P.S. Im new to Android development.

EDIT: I tried most of you solutions, but nothing worked. So I started using my frineds install of Eclipse Ganymeade.

View 19 Replies View Related

Android :: Source Code (or Git File) For ContactsContract.QuickContact Class?

Jul 15, 2010

What is the .git file corresponding to ContactsContract.QuickContact class?

View 2 Replies View Related

Android : Program Crashes When I Call A Class From Another Java File

Oct 26, 2010

I am new at android development and java programming, but I have decided to program a drinking game app in android. This app basically simulates a deck a cards, a player clicks a button to draw a card then based on the card thats drawn the player plays a drinking game (ie takes 1 drink, takes 2 drinks ect).

I have the main program in one java file, and the code that shuffles the card deck and puts the card sequence in an array in other java file. My problem is that whenever a class from the other java file (classicMode.java) is called from the main program (fubar.java), my android program crashes and gives the error : "The application Drinking Game - FUBAR (process com.games.dg) has stopped unexpectedly. Please try again". Code...

View 1 Replies View Related

Android :: Thread Class In SDK LunarLander And JetBoy Examples Not Each In Separate Java File / Why Is So?

Sep 9, 2010

Is there a reason why the Thread class in the SDK LunarLander and JetBoy examples are not each in a separate java file, rather than being inside the View file?

It would make things a bit clearer, IMHO. Am I missing something?

View 2 Replies View Related

Android :: Make Adapter Class To Choose .Java File Depending On Firmware Version

Sep 1, 2010

What I did was create two .java files. One that can compile and run on a 1.5 phone (SDK3) and then one that works on 2.0(SDK5) So for this example i'll call the 1.5 file ExampleOld and the new one Example. I was wondering if i just made activity like this if it would work sort of like a "portal" and pick the activity to load depending on the SDK so there is no crash or compile errors. Are there any changes I should make to my code? Maybe anyone out there that's had to do this before.

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

View 2 Replies View Related

Android : Class Generator For Data Classes Used In Java / Droid From Existing Wsdl File?

Apr 3, 2010

Is there any class generators to process web services in Android/Java? I may have to write my own to generate classes against WSDL but I'm trying not to. Also is there one for REST services as well?

If not providing me with discovery service suggestions like disco/wsdl are good enough.

View 2 Replies View Related

Android :: Compiling Source Code Or Importing Private Class File Into Android.jar

Feb 16, 2010

Some classes are NOT PUBLIC like android.os.ServiceManager, android.view.IWindowManager, etc, they are implemented in the mobile devices, but not present in the SDK .jar. This is because these classes are private APIs . now please tell me is there any way like compiling source code or importing private class file into android.jar so that i can use this private APIs.

View 3 Replies View Related

Android :: Android.view.inflateException:Binary XML File Line #43 - Inflating Class Unknown

Sep 28, 2010

I am using MapView in my application.I ma getting "android.view.inflateException:Binary XML file line #43:Inflating Class<unknown>" Exception while loading the map second time. First Time it shows correctly

The XML file i am using shows here

The Code:.................

View 2 Replies View Related

Android :: Call Java File On Click In Another Java Class?

May 19, 2010

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;...........

View 1 Replies View Related

Android :: Creating A New Class Using Eclipse New Java Class Dialog Box

Jul 7, 2010

I'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 Related

Android :: Communicating Between Receiver Class And An Activity Class

Jul 14, 2010

I'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 Related







Copyrights 2005-15 www.BigResource.com, All rights reserved