Android :: How To Get A View From A Custom Layout

Jun 23, 2009

I've created a custom view via .xml file, and I wanted to add it as a a contentView to an alert Dialog usinf a dialogBuilder:

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

The problem is...I can't get my view from my custom layout... I only have an id (int)...

I tried Resource.getLayout(int) => it returns an xmlParser... not very usefull ...

finally the solution I comes up is so disgusting ( it worked but ... let's have a look)

CODE:.......

How can I do that easily without using such a disgusting way... ?

Android :: How to get a view from a custom layout


Android :: Custom View Extending View-Class / Still Based On XML-Layout

Aug 17, 2010

I want to build my own custom view which should look like the Crysis-GUI.At first I designed a XML-based Layout and made it visible via the setContentView(int resid)-Method. Worked pretty well.But now I wan't to go a step further and draw in my Layout. So I created a new Class, let it extend View and overrode the onDraw()-Method. So far so good.But how can I still use my XML-Layout? I can't do setContentView anymore, so how could the same effect be achieved?

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Android :: Add Custom View To XML Layout

Nov 28, 2009

Currently, I am creating a custom View class (DrawView) that inherits the View class and adding to my activity programatically by using RelativeLayout and LaoutParams etc. But is there an easier way to do this by adding my DrawView to the layout XML file?

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Android :: Custom View With Layout?

Mar 9, 2010

I am trying to do is to embed a custom view in the default layout main.xml:

CODE:......

As you can see the class is called com.lam.customview.CustomDisplayView, with the id of custom_display_view1. now in the com.lam.customview.CustomDisplayView class, i want to use another layout called custom_display_view.xml because i don't want to programmatically create controls/widgets.

Custom_display_view.xml is just a button and an image, the content of which i want to change based on certain conditions:

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

I tried to do:

1)
CODE:........

But got this error, "03-08 20:33:15.711: ERROR/onCreate(10879): Binary XML file line #8: Error inflating class java.lang.reflect.Constructor ".

2)
CODE:..........

But got this error, "03-08 20:28:47.401: ERROR/CustomDisplayView(10806): Resource ID #0x7f050002 type #0x12 is not valid "

Also, if i do it this way, as someone has suggested, it's not clear to me how the custom_display_view.xml is associated with the custom view class.

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Android :: Custom View In Xml Layout

Jul 15, 2010

I've created my own view by creating a subclass of the SurfaceView class.

However I can't figure out how to add it from the xml layout file.

My current main.xml looks like this:

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

What have I missed?

My view looks like this

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

And it works fine like this:

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

But nothing happens when trying to use it from the xml.

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Android :: Refering To A Custom View In A Layout XML?

Jul 29, 2010

I am trying to refer to a custom View in the helloWorld XML layout but I get the following exception:
Error inflating class acme.my.MyTextView.

However, I am able to instantiate the view and add it to the main content view manually. The custom View is built from it's own XML layout. How do I get this to work?

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

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Android :: Multiple Custom View (Derived From Relative Layout) In One Line

Sep 15, 2010

I have created a custom view by extending Relative Layout and it looks like this: The layout for the view:

<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout android:layout_width="wrap_content"
android:layout_height="wrap_content" android:gravity="center_horizontal">
<ImageView android:id="@+id/type_picture_preview"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:src="@drawable/type_picture_noimage" android:layout_alignParentRight="true"
android:paddingTop="15dip" android:paddingRight="15dip" />
<ImageView android:id="@+id/type_picture_delete"
android:src="@drawable/type_picture_delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true" />
</RelativeLayout>
</merge>

I am struggling to get two or more layouts on a single line.

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Android :: Find View Returns Null For Custom Component In Layout

Nov 7, 2009

I have a res/layout/main.xml including these elements and others:

<some.package.MyCustomView android:id="@+id/foo" (some other params) />
<TextView android:id="@+id/boring" (some other params) />
In my Activity's onCreate, I do this:
setContentView(R.layout.main);
(TextView) boring = findViewById(R.id.boring);
// ...find other elements...
MyCustomView foo = (MyCustomView) findViewById(R.id.foo);
if (foo == null) { Log.d(TAG, "epic fail"); }

The other elements are found successfully, but foo comes back null. MyCustomView has a constructor MyCustomView(Context c, AttributeSet a) and a Log.d(...) at the end of that constructor appears successfully in logcat just before the "epic fail".
findViewById() returns null for custom component in layout XML, not for other components. Why is foo null?

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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 :: 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 View To Bottom Of Layout Inside Scroll View

Mar 10, 2010

So my layout looks basically like this:
<ScrollView>
<RelativeLayout>
<BunchOfViews/>
<ImageView android:layout_alignParentBottom="true"/>
</RelativeLayout>
</ScrollView>
I have the ScrollView so all of the layout always is visible no matter the height of the screen. The problem is that on a very high screen, I still want my imageview to be at the bottom. However, a child of a ScrollView dont seem to have a defined bottom. The View is placed at the top of the layout. How can I solve this problem in a neat way?

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Android :: Add View To XML Layout Programmatically / Make It Z Order Below Existing View

Oct 8, 2010

I have an XML layout with some custom tabs, a heading, and a ProgressBar(main.xml). I wish to add another XML layout(home.xml) to the main.xml layout, as i wish to keep main.xml re-usable for other activity's layouts and simply add things to it as necessary.The problem: after inflating R.layout.home into rootLayout, it seems as though the ProgressBar contained in rootLayout is hidden underneath the content of home.xml.Is there a way to tell certain views(via XML) to float above other views when the layout is constructed in this way?if not, am i forced to use methods such as progressBar.bringToFront() to raise targeted views to the top?what alternatives do i have in z-ordering views when some layouts are constructed using inflation?

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Android :: Add Text View Before List View In Linear Layout?

Mar 11, 2010

I've tried to add a TextView before a ListView in a LinearLayout. The result is that the ListView wont show at all. The same thing happens if I put the TextView after the ListView, but then I will only see the ListView. Is there a way to get a text view above the ListView without to much of a hassle?

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Android : Way To View A Different Flipper In Layout View Of An Xml?

Nov 21, 2010

I am using a flipper in my main xml file to view multiple layouts in my app. For instance, if something = 1, the user is shown one version of the flipper, where if something = 2 the user sees a different version. Is there a way I can view the layout of the xml file for the other flippers I have rather than the main one? Ie, is there a way to switch views of each state of the flipper in eclipse?

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Android :: How Do I Programmatically Add Gestures View To Custom View?

May 26, 2010

I have a custom view that works fine and I'm trying to get gestures into it. The most common technique I see is to add XML, such as this (from Android docs.Can someone point out my errors, suggest a better way that will allow me to get gesture callbacks and/or suggest diagnostic approaches?

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Android :: Multi Column Custom List View / With Editable Edit Text At End Of List View

Nov 3, 2010

I am on Android 2.1 and I have one multi column Custom listview Using BaseAdapter with an editable edittext at the end of the listview. If the data in the listview do not contain the data of user choice then user should be able to enter data. If the data is already there in the list user will be able to select the data using custom selector. If a selection is made in the list view and user wanted to enter data in the text field at the bottom after selection then the marker in the list view should be unselected. I tried to use onclick() method on edit text using click listener. First time when it is clicked, edit text is getting focus and onclick() method is not fired. And when it is clicked second time, onclick() method is fired and notifyDataSetChanged() method is called. I tried to call the notifyDataSetChanged() method from the Focus Listener, list view selection is gone in my first attempt and edit text is not receiving any data input from the keyboard (frozen).

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Android :: SQLite For Android Custom Table View (SQL VIEW) Discrepancy?

Jul 16, 2010

I've created a custom view in an SQLite database for an Android application. I'm using Sqliteman on Ubuntu to test my SQL statements before I put them in my app. I'm trying to do a simple select statement on my view. The select statement works fine in SQLiteman but when I put the same statement in my code it throws an error. The statement: select * from item_view where parent_item_id = 0;........

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Android :: How To Re-layout View

Apr 20, 2009

In my code, I only changed the layout params of an image after it is shown. For example, change the height of the layout. I called the invalidate() function after the change, but it does not work. Although the height of the layoutparams changed, but the view does not change. Why?

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Android :: XML Layout Of Custom Component

Jul 9, 2010

I have created a simple class named Panel which extends the SurfaceView class and does some drawing in the onDraw method. When I use it from the code it works fine. For example this works as expected:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new Panel(this)); ....

However when I try adding this component from an xml layout the program crashes:
XML file (main.xml):
<?xml version="1.0" encoding="utf-8"?> <org.anddev.Panel android:id="@+id/panel" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"/>

Code:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);....

Error msg: Sorry!
The application Test (process org.anddev) has stopped unexpectedly. Pleas try again.
I can not figure out why the same class works when created in one way and doesn't work when created in another.

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Android :: Button With Custom XML Layout

Feb 25, 2010

Is it possible to create a button with a custom xml layout? Now I want to use this on a button. Anyone know how I can do this? I was thinking if I had Button.java file that extended Button. And then setView( R. layout. mylayout.xml); but that was to easy, and it clearly not working

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Android :: Style Own Styleable With A Style - Custom View Class With Custom Attribute

Jul 8, 2009

I'm creating my own View class, and defining custom xml attributes with a attrs.xml. As long as I provide each attribute manually, there is no problem, but

code:...................

The android:text is properly set in my instance, but the borderDrawable is not. I guess this has something to do with namespaces, because inside the styles.xml, the name="mypack:borderDrawable" is not handled by the XML parser's namespace facility, because its inside an attribute value. So "mypack" is in no way connected to "http://some.weird.url.com/seems/not/to/ matter" and adding it via xmlns:mypack... to the stylefile would not help, I guess. In the same file, "android:text" is somehow recognized, even though "android" is AFAIK only a ns-defintion for [url], which is also not declared in that file.

So what is the proper way to set a custom attribute in a style?

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Android :: How To Specify Proper Layout For View?

Mar 3, 2009

I want to re-use 1 adapter (similar to well known ImageAdapter from samples) with 2 different views - Gallery and GridView. I need to specify LayoutParams for the each View returned by getView() method of my adapter. In case of Gallery it should be instance of Gallery.LayoutParams, and in case of GridView it should be GridView.LayoutParams. I'll get an exception for sure if I'll try Gallery.LayoutParams with GridView and vice versa.What is the best way to do that? Can I somehow use "parent" parameter (ViewGroup parent) for that?

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Android :: Way To Inflate One View With An Layout?

Feb 25, 2010

I have a layout defined in XML. I would like to inflate this RelativeView with other XML layout file. I may use different layouts depending on a situation. How should I do it?

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Android :: Add New View With A XML Layout File?

Sep 16, 2010

I am beginning developing android application. What I need to know is how to associated a xml layout file with a new class (not the activity). For example the class needs to have a table with an image and some texts.

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Android :: Set Context To A View In Layout Xml

Sep 14, 2010

I am using WebView in an ActivityGroup and it will throw an exception if WebView show Dialog and complain the activity is not valid. But it's okay if I set the context of the WebView to the TOP activity. So I wish to know how to set the context in the layout xml ?

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Android :: Android - Finding View By Id When View Not On Same Layout

Feb 16, 2010

I have and activity MyActivity that extends from MapActivity. In the .xml file containing the layout I can only include the MapView: However I do neet to find another view that is located in another .xml file. Unfortunately, findViewById returns null. How can I get the view I am looking for?

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Android :: Dismiss Dialog With Custom Layout

Aug 16, 2010

I have a dialog with a custom layout, and I try to close it when I press a button:
private void showAboutDialog() {
dialog = new Dialog(MainMenu.this);
dialog.setContentView(R.layout.about_dialog);
dialog.setCancelable(true);
dialog.setTitle(R.string.about_title);
dialog.show();

LayoutInflater inflater = (LayoutInflater) getApplicationContext().getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.about_dialog, (ViewGroup) findViewById(R.id.layout_root));
Button closeButton = (Button) layout.findViewById(R.id.about_close_button);
closeButton.setOnClickListener(new Button.OnClickListener() { public void onClick(View view) { dialog.dismiss();
} } );
}
But it doesn't work.

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Android :: Linear Layout And Custom Dialog

Apr 29, 2010

The button doesn't show in this layout(code below),image and textview are shown. I tried using relative layout but that doesn't help either.

I'm testing it on 1.5 emulator.

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

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Android :: Writing Custom Linear Layout

Jul 26, 2010

I have a custom layout that draws a transparent rounded rectangle beneath its children. The problem is when I try to add it to my xml file, it doesn't show up. Also, when I try to add parameters to it (i.e. android:layout_width) the popup shows that none of them are available. The same thing happens to any child views I add. public class RoundRectLayout extends LinearLayout
{ private RectF shape;public RoundRectLayout(Context context)
{super(context);
LayoutInflater layoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
layoutInflater.inflate(R.layout.settings, this);
shape = new RectF();
}public RoundRectLayout(Context context, AttributeSet attrs)
{ super(context, attrs);
LayoutInflater layoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
layoutInflater.inflate(R.layout.settings, this);
shape = new RectF();
} @Override
protected void onSizeChanged(int w, int h, int oldw, int oldh)
{shape = new RectF(0, 0, w - 5, h - 5);
super.onSizeChanged(w, h, oldw, oldh);
}@Override
protected void dispatchDraw(Canvas canvas)
Paint temp = new Paint();
temp.setAlpha(125);
canvas.drawRoundRect(shape, 10f, 10f, temp);
super.dispatchDraw(canvas);

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Android :: Listview Custom Row Layout - Tried Many Combinations

Jun 13, 2010

I am having trouble getting my layout to give me result I need, I already tried many options and it seems that I'm doing something wrong or completely missing something.

I have a listview with a custom row layout I can't seem to working although it shouldn't be complex. I need of the list row to insist of:

Icon -- title text (bigger and bold) with a short multi line text under the title -- ImageButton

My problem in most of my tests is the icon to the right usually doesn't appear, I guess my center group grows and takes all the space of the button. My last failed attempt was with a Relative Layout, didn't have too much luck with a Linear Layout either.

Here is the row XML:

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

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