Android :: Faster To Load A Layout In Java Or Xml?

Nov 18, 2010

Ok o my program i prefer to make the layout in java but i was wondering is it more efficient to make it in xml? i dont wanna test both and see whats faster but it feels like when my program call the oncreate (which is where all my layout building code is) takes about 2 secs to load, will loading a layout from xml be faster?

Also a second question, i know you can allocate two different layouts (one per landscape or portrait) but does it till rerun oncreate when you do this and rotate? i ask because im considering not using landscape at all in my app however it would be usefull in a few situations like text entry but is there a way to jump to lanscape without calling oncreate so it will load much faster?

Android :: faster to load a layout in java or xml?


Android :: Possible To Load A Layout XML At Runtime And Load Into Activity?

Sep 4, 2010

Is it possible to load a layout XML at runtime and load into activity?

In my app, I have various types of data like Person, Company, City, etc; The requirement is to dynamically load the layout, find views by tags (property names like Person.name, Person.address) and then fill in data. For example, if user has selected an object of type Company, we want to load a company.xml layout, inflate it and then associate various properties (company name, company slogan, city, address, revenue) to tagged views. One possibility I see here is - each view in the layout will be associated with property-name as tag and then appropriate data will be loaded in appropriate views.

What should be the best design you would recommend?

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HTC Incredible :: Phone Messages Loading Slowly / Anything To Load Them Faster?

Aug 11, 2010

I have had the Droid Incredible for a month and a half now and my text messages are filling up. One girl I have 2500 messages from and the loading is pretty slow. Its pretty annoying waiting to reply and everything else on the phone is lightning fast so I was wondering if you guys have any suggestions on how to have them speed up or settings that would help. Please tell me anything that would make these messages load faster.

P.S. I understand deleting the messages will make it fast but erasing them takes way too long and its annoying. Also i need a lot of my messages.

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Android : Is It Faster To Draw Directly On Portrait / Landscape Layout?

May 14, 2009

Presumably one layout or other must be native to the O/S and the other layout needs an expensive internal rotation + transformation in order to display in correct position.

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Android :: Load Image - Background - On Layout?

Feb 17, 2009

I want to load image - background - on layout. I use eclipse tool to develop application. Help me???

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Android :: Java.lang.OutOfMemoryError When Load Bitmaps

Jun 8, 2010

I used this sort of code to make sure my bitmaps load:................

In 2.2, it's now failing sometimes and my catch block no longer catches anything. Why would that be? Is there a better way to avoid a java.lang.OutOfMemoryError?

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Android : Load Layout Dynamically At Runtime In Droid?

Nov 20, 2010

My application requires 2 screens and for this I have created two different XML layout files using RelativeLayout. One layout file loads whenever I run my Activity. Now I want to load the second layout on to the same Activity , when user click on a button in OptionsMenu and also when user press Back button the first screen loads instead of exiting the application. So that i don't need to create another Intent in my application.

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Android :: POST Data From A Java Button Then Load It In Web Browser

Nov 15, 2010

I have set up a Button that will link to Google Checkout, however, I need to POST a whole lot of required data (not GET) so I can't use the usual Intent method.

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

How do I post data to a URL by pressing a button and then load the result into a web browser? In this case it will be the Google Checkout webpage.

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Android :: How To Add Layout To Another In Java?

Sep 27, 2010

How can I add a layout to another layout in java? In xml, you can do it with include. How can you do it in Java without the help of XML? (I need to know this because the number if includes changes dynamically).

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Android :: Eclipse Layout Editor And Java 6

Feb 27, 2009

System config is MacOSX with default JDK 1.5.0_16. Eclipse 3.4 The problem is I have a project in workspace that has been developed under JDK 1.6.I don't really want to switch back to 1.5 ( i' would have to clean up a LOT of @Override ) but if i work with this project, after couple of rebuilds - eclipse layout editor not able to display preview. Work around i found so far open android project that is in compliance with Java 1.5. Close everything else and rebuild workspace. But it's kind of annoying to do it every time.

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Android :: Make Layout XML In Java Programming?

Aug 17, 2010

I have a layout xml . I would like to do that in java programming. code...

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Android :: How To Center Layout To Vertical Through Java Code

Jun 16, 2010

I want to set android:layout_centerVertical="true" property of layout through java code of an image.

How to achieve this. here is my code.

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

I have tried using setScaleType(ScaleType.FIT_CENTER) but no use.

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Android :: Call ADT Layout Editor In Java Source File?

Mar 9, 2009

1. Can I call ADT Layout Editor in my java source file, not by XML file "open with" menu ?

2. When I click "add" button in the outline view of ADT Layout Editor , it will show such a list of UI components as "AbsoluteLayout AnalogClock AutoCompleteTextView Button ....." My question is where it gets this list? Can I config this path to get my customized UI components?

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Android :: Java.lang.NoSuchMethodError In Eclipse Layout Editor

Mar 30, 2009

In the layout editor in Eclipse, I have created a custom view. For some reason, there are a few methods which cause NoSuchMethodError exceptions in the code. Here is the code in the initializer of the custom view:.............

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Android : How To Create An ImageView In Java Code Within An Existing Layout

Jun 8, 2010

I'm looking for an easy way for the user to see how many drinks they've had for a BAC calculator.

PICTURE OF THE APP, for reference

On button press, I would like an image to be added to the screen, directly under the spinner and with left alignment. When I press the button again, I want another image to be added to the screen.

So if I pressed the add beer button, a drawable of a beer would appear below the spinner. If I pressed the add beer button again, I want there to be TWO drawables of beers under the spinner, preferably with them being added from the right.

(Also, having them reach their width limit, wrapping around, and starting again on the left, but below a full line, would be AWESOME)

I can't figure out how to do this. I assume adding a ImageView in code to a relative layout (because it needs to be positioned to the right) would be the best route, but if it's possible in xml I'd be more than happy to use that.

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Android :: How To Load A Java Class Dynamically On Android/dalvik?

Jun 11, 2010

I'm wondering if and how one can load dex or class files dynamically in dalvik, some quick'n'dirty test function I wrote was this:

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

whereas the Foo interface is this

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

and f.dex contains some dx'ed implementation of that interface:

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

The above test driver throws at defineClass() and it doesn't work and I investigated the dalvik code and found this:

http://www.google.com/codesearch/p?hl=en#atE6BTe41-M/vm/Jni.c&q=Jni.c...

So I'm wondering if anyone can enlighten me if this is possible in some other way or not supposed to be possible.

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Android :: Achive File Upload Dialog Box In Droid Through Java / Xml Layout?

May 17, 2010

I'm new to android, developing a social networking application which requires user to upload images, but i don't know how to achieve the file upload dialog box. How can we achieve it,using Java file or xml layout file?

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Convert XML Layout To Java Code?

Feb 28, 2012

I'm trying to convert this 4 XML elements to put them into the java class, but I don't know how to do it.

Code:

<TextView
android:id="@+id/text_route_section_station"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"

[code]....

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Android :: Open New Layout And Code (xml And Java) By Clicking Button On Main Scene?

Aug 2, 2010

I'm beginning to study Android and have a doubt. How do I open a new layout and code (xml and java) by clicking a button on the main scene?

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Android :: Relative Layout In Java Code With Inflate And Custom View - Position Error

Jun 16, 2009

I have a custom view that I had to write for a large scrollable image, as the images are larger than the size of the screen. Before, I had tried to do it by putting the image into a ScrollView but that of course didn't work. The view itself is within a RelativeLayout within the activity and at the bottom of the screen I have two buttons that are used for navigation and at the top a TextView with a caption for the activity (the main header is already being used here for instruction). In my below code, I've checked the Hierachy Viewer to confirm all the elements are loaded and in the Activity I can see the TextView, however it overlays the ZN5ScrollView area and below the image I just have a blank area of the size defined rather than my buttons. For the bottom navigation, the Hierachy Viewer is saying the absolute_y of the bottom navigation is 480. I'm wondering if anyone can help with my layout code here to get this working correctly? Bottom navigation is 50px high, ZN5ScrollView is 365px above the navigation, and the TextView takes up the rest of the area at the top

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Android :: Change Nested Layout's Child View Group's Width In Java Code?

Oct 6, 2010

I have a layout xml file with a linear layout. One of the children is again a ViewGroup Relative layout. In my java code i want to change the width of this child Viewgroup for my requirements. I tried this

ViewGroup childViewGroup = (LinearLayout)findViewById(childViewGroup);
LayoutParams l = childViewGroup.getLayoutParams();
l.width = 360;
childViewGroup .setLayoutParams(l);

I couldn't do this because findViewById(childViewGroup) doesn't fetch ViewGroups it does only for Views. Note: I cant define a whole new layout.xml for this minor requirement since it is huge layout file and might cause performance overhead. I wanted to just change the width of the child view group in my java activity code.

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Android :: Large Screen On 1.6 - All XML Files Of Layouts In Layout-large Can't Load

Oct 23, 2009

I want make it support multiple screens(small,normal and large).I am 100% sure the all of layouts are working perfectly now, but large screen,the problem is that all XML files of layouts in layout-large can't load,The platform always load default XML file(these are under layout folder) at large screen environment.

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Android :: Load Single App During Load And Not Allowing The User To Step Out Of It

Oct 22, 2010

I have been assigned the task to use an android tablet to run a single app in an enterprise setting. Ideally, when one switches on the tablet this app should be loaded perhaps during startup and the user need not step out of this app. The app logic itself is rather easy but I am wondering if it is at all possible to load a single app during load and not allowing the user to step out of it.

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

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Android : Can Not Call A Java Method Using Add Java Script Interface()

Mar 16, 2009

I'm trying to call a java method from javascript using addJavascriptInterface(); but seems does not work, it always display "failure"; java code...

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Android :: Java.io / Java.Lang Different From Packages In Windows?

Aug 8, 2009

Java packages like Java.io, Java.Lang etc used in android, are they different from Java packages in windows ? means specially made for android ?

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Android :: Unable To Open Both Main.xml Files / From Layout & Layout-land At Same Time?

Aug 14, 2010

While developing for Android, I am unable to open more than one main.xml file in an Eclipse editor at a time.Each time I open one, it simply replaces the editor (tab) of the first main.xml with the new one, instead of opening a new tab - even if the contents of the existing tab were unsaved.Even stranger, I can open multiple main.xml files from different projects with no problems.This only happens when they're within the same project.

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Android :: Layout Alignment - Divide Screen Into Three Layout As Header - Body And Footer

May 4, 2010

I am new in android, i am having few problem in layout alignment. I have divide the screen into three layout,as header, body and footer. I am giving the height dynamically for the three layout in java file, so i need to give 12% of height to header and footer layout, and the remaining 75% i need to assign height to body layout. For that i have made the calculation as follow

first i am getting the height and width for the screen. With the help of the screen height i am getting the 12.5% height for header and footer layout

WindowManager w = getWindowManager(); Display d = w.getDefaultDisplay(); int totalwidth_screen = d.getWidth(); int totalheight_screen = d.getHeight();..................

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Android :: How To Layout Image Buttons In A Grid View From Xml Layout File

Jan 23, 2009

Is it possible to build a GridView object in XML with 3 columns and 4 rows of Image buttons? It doesn't seem to have similar containment relationship like LinearLayout or RelativeLayout viewgroups.

I want to do this entirely in an xml layout file. When I put ImageButton xml tags inside a GridView xml body, The layout panel in eclipse is throwing an exception: UnsupportedOperationException:addView(View, LayoutParams) is not supported in AdapterView.

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Android :: Adding To LinearLayout Another Layout And Handle This Layout In Separate Activity

May 6, 2010

I have an Activity which uses a layout with a LinearLayout in it. Now I want to create in runtime a subactivity which loads some other layout and add this layout as item of my LinearLatout.

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