ListView not displaying right - android

So i`m coding this custom listView Adapter. The adapter AXML looks like this:
The problem is that when i compile and run in emulator, the ListView item turns into this :
Can anyone help me figure out what is happening? Maybe help me fix it?. If you need any code let me know.
UPDATE: AXML file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:minWidth="25px"
android:minHeight="25px">
<TextView
android:text="ABC 232"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/shopName"
android:textColor="#3c3c3c"
android:textSize="22dp" />
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/linearLayout2"
android:weightSum="1">
<TextView
android:text="~800m away"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/distance"
android:layout_marginLeft="0.0dp"
android:textColor="#3c3c3c"
android:layout_weight="0.5"/>
<TextView
android:text="Total: 12.45 RON"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/total"
android:layout_gravity="right"
android:layout_marginLeft="22.0dp"
android:textColor="#3c3c3c"
android:layout_weight="0.5"/>
</LinearLayout>
</LinearLayout>

Please change all the text views width and height attribute to wrap_content. Specially for text view for shopName.
You can also remove linearLayout1, linearLayout3 and linearLayout4. Since they added noting important to your view.

You do not need to encapsulate each TextView in a LinearLayout. If you desire padding around the font, the TextView has padding attributes that will achieve the same effect in a cleaner manner.
If you clean up the code in this way, the issue with views not appearing may appear clearer.

It could be much simpler, use relative layout and align all three text one another.
Steps to design:
1) Take Parent Relative layout and make it centre vertical and horizontal
2) Place text1 and make align top of parent and give margin or padding from left
3) Place text2 below of text1 and give padding or margin from top.
4) Place text3 toRight of text1 or text2 or make make it centre vertical and horizontal of parent or you give margin left. it is your choice which once you choose.
Let me if you want more help. :)GlbMP

Related

Android Textview with width 0 is forcing content to disappear below it

I have a TextView whose width should not exceed the ImageView above it. Both image and text are downloaded from server and I don't know their dimensions (can't make assumptions either). I went through the logic to wrap the text content using this SO post.
Here is my layout XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/parentLL"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout android:orientation="vertical"
android:id="#+id/LL1"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/image1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="#+id/text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="end"
android:width="0dp"
android:text="This is a string whose width may or may not be more than the image downloaded" />
</LinearLayout>
<TextView android:background="#android:color/holo_red_dark"
android:id="#+id/text2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Second Text"/>
</LinearLayout>
With this code, the TextView at the end (text2) does not even show up. There are 2 solutions to this issue :
Apply android:maxLines="5" to the text1. Problem with this approach is that Text1 view would always be 5 lines high (I understand 'lines' is not a unit of height, but that's what I see visually). So if the text content is just one word, there would be a big white space below. And then text2 shows up.
Change topmost linear layout (parentLL) to RelativeLayout. text2 can then be used with alignBelow=LL1. This works as expected. But I cannot migrate the topmost view to RelativeLayout, because this view is from a library not in my control. I can only modify LL1 and it's children. Due to my code, other views below (like text2) are suffering (by not showing up).
There is a third approach for setting the textview as a compound drawable on ImageView. I guess that might work (haven't tested), but my requirement is to show the TextView if image download has failed (which can be detected only after a while). So I need to have a TextView. Also, my LinearLayout LL1 can have other children too.
I would request for some help understanding :
Why is my code not showing up the content below the textview 'text1'? With width=0 on textview it seems to set the height of the parent to be match_parent.
How is RelativeLayout able to handle this smoothly ? Can I replicate any of that behavior in TextView's onMeasure ? Assume I have callbacks to detect image has been downloaded, and I can get image width also.
I think what you are running into is a conflict of setting the width and height but not setting the layout weight, which is a key factor in how Linear Layouts work. If you add one more vertical LinearLayout in there and then move #id/text2 into it, you should be set. You'll need something like the following (obviously modified to your specs, this was just a quick test). Note my use of android:layout_weight,
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/textView3" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/textView2" />
</LinearLayout>
</LinearLayout>
Which splits the screen in half vertically as shown in this picture,
Photo of resulting layout
I had to wrap the TextView in a RelativeLayout, which was wrapped by a LinearLayout. Not happy with this solution, but this is the only way for now.

Android Layout proplem

I have a layout contain one image and 3 text field
I've tried to align the image to right and text field to left but I've failed
I've used
android:layout_gravity="right" for image and left to text but it did not work also I've used end and start in gravity with no success
this is the layout code:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:layout_marginBottom="2dp"
android:orientation="vertical"
android:background="#drawable/card_background">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/listthumb"
android:layout_width="80dp"
android:layout_height="50dp"
android:layout_gravity="center_vertical"
android:contentDescription="Rss video thumbnail"
android:src="#drawable/ic_launcher" />
<TextView
android:id="#+id/listtitle"
style="#style/listTitle"
android:maxLines="3"/>
</LinearLayout>
<TextView
android:id="#+id/shortdescription"
android:layout_width="wrap_content"
android:ellipsize="end"
android:maxLines="2"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_height="wrap_content"/>
<TextView
android:id="#+id/listpubdate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="11dp"/>
</LinearLayout>
</FrameLayout>
Try to use a <RelativeLayout> instead of a <LinearLayout>
With the RelativeLayout you could place a widget depending on the position of another widget
Here the Relative Layout description
Hope this will help, I have not had time to test....
One linear layout should have vertical orientation and contain the 3 text fields.
One linear layout should have horizontal orientation and contain both the above linear layout and the image.
To push two views to the edges of the screen, you can also give each a left/right margin and then put a blank view with weight = 1 in between them.
Please read a bit more on how layouts work on Android and the different types available to you. A LinearLayout will stack the containing Views either Horizontally or Vertically one after the other. A FrameLayout is simply a container and the items within have to position themselves. RelativeLayout allow you to position your views with a relative reference to other views (in your case, you can position your ImageView, and then your 3 TextViews relative to where the ImageView is).
If you can use LinearLayout instead of RelativeLayout, you should do so, as RelativeLayout is always slower, due to having to perform two passes prior to rendering as it needs to measure each view and then also perform the layouts based on that. You might be looking for something like (pseudo-code):
<LinearLayout orientation=horizontal>
<LinearLayout orientation=vertical>
<TextView />
<TextView />
<TextView />
</LinearLayout>
<ImageView />
</LinearLayout>
You have not described your question well . Check below code if it works .
You just forgot to add orientation in linear layout containing one text view and a Image view .
Add Orientation to Your Linear Layout.

android - last added item to layout is strech vertical. WHY? (Remake)

[Second Edited]
I found where problem is. But i dont know why its doing. It cant be margin on LinearLayout (or just marginLeft). Does anybody know why it cant have ?
[EDITED]
Hello i have xml file in layout like bellow.And iam adding TextViews from any xml layout to horizontal LinearLayout. This layout structure is given and i cant change it.
And last added TextView is streching always verticaly. I dont know why i am in tottaly despair. Too many hours i was try* that but without no idea. I know just its not in programicaly adding TextViews ..
If some body know why its doing i will be thankful.
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/back_border"
>
<RelativeLayout
android:id="#+id/manager_view_table_header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
>
<LinearLayout
android:id="#+id/layout_for_textViews"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="6px"
android:layout_alignParentTop="true"
android:gravity="center_vertical"
android:background="#drawable/back_border"
>
<!-- horizontal layout, HERE IAM ADDING TEXTVIEWS -->
</LinearLayout>
</RelativeLayout>
<!--What is here its no important
because, there is RelativeLayout with alignBellow relative layout before -->
</RelativeLayout>
and TextView witch iam addig to LinearLayout:
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="15sp"
android:paddingRight="7px"
android:paddingLeft="7px"
android:paddingTop="3px"
android:paddingBottom="3px"
android:layout_marginLeft="5px"
android:gravity="center_horizontal"
android:background="#drawable/background_table"
android:textColor="#330033"
android:text="Some text"
/>
Try to replace the android:layout_margin="6px" from the LinearLayout by android:padding="6px".
I think this will solve your problem. I mean the new LInearLayout should be like this:
<LinearLayout
android:id="#+id/layout_for_textViews"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="6px"
android:layout_alignParentTop="true"
android:gravity="center_vertical"
android:background="#44ff435f"
>
I am confused with your three layouts. Wat's the porpose of all thses nested layouts, try to recreate the text views with a single relative layout, and use the android:layout_above and android:layout_below for placing the text views.
First of all you need to refactor this code.
You might want to use actual ListView to create repeated elements.
and why is xmlns:android="http://schemas.android.com/apk/res/android" declared thrice in this xml code, when it is actually required just once at top root element.
Even with this layout to solve your problem, if other things are not working a nice idea would be to switch to Graphic layout(bottom tab in eclipse when on .xml file) and manually try to set the third TextView (not listview) height manually, you can observe the changes then and finalize them accordingly..

Aligning center relative to others

So it's possible to align the top, bottom, left, and right of one view with another so that their edges are flush with each other. However, I've been wondering if it's possible to align the centers of two views of different sizes. My situation occurs when I have an ImageView side by side with a TextView, like this: [ImageView] [TextView]. The ImageView is bit taller than the TextView and so what I do is add padding/margins to the bottom of TextView to get it align and look like the ImageView and TextView horizontal centers are aligned. Problem is, when this view is displayed on larger tablet screens, the padding and margins don't work out right and the TextView doesn't look aligned with the ImageView. I'm sure there is an easy fix to allow this to always work out, so could someone provide me with some insights? Thanks!
This is how I did for a listview row:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#FFFFFF"
android:padding="5dp"
android:gravity="center_vertical">
<TextView android:id="#+id/questionItemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="20sp"
android:textColor="#000000"
android:gravity="center_vertical"/>
<ImageView android:id="#+id/questionViewed"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/eye"
android:layout_marginLeft="5dp" />
<ImageView android:id="#+id/questionAnswered"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/check"
android:layout_marginLeft="5dp" />
</LinearLayout>
Use weightSum rather than padding in dips or pxs, that will make your layout look fine regardless of the size of the user's device.
or you could use gravity as well.
Or you can create a second xml file and insert that one into your res/xlarge file, the phone will pick which xml to read.

Why button is not centered vertically in LinearLayout?

I have a LinearLayout, which only contains one button. I want this button to be centered vertically and aligned to the right. I tried many ways, but I couldn't make this button centered vertically. It is always aligned to the top. I also tried to put a button in RelativeLayout, the button can not be centered vertically either.
The XML is as below. Is there anything wrong with this layout? Thanks.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#E8E3E4">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="More"
android:layout_gravity="right" />
</LinearLayout>
Changing android:layout_gravity="right" to android:layout_gravity="right|center_vertical" didn't resolve the problem in my question.
You say in words that you want this to be centered vertically, but you have not said in XML that you want this to be centered vertically. You will need to adjust your android:layout_gravity attribute to specify both right and center_vertical.
However, I would recommend you go back to RelativeLayout. Use android:layout_centerVertical="true" and android:layout_alignParentRight="true" to make the button be centered vertically and right-aligned.
Also, bear in mind that your current LinearLayout has android:layout_height="wrap_content", which means there is nothing to be centered inside. You need the container to have more space than its contents (e.g., fill_parent) if you want centering to have any meaning.
This code will put the button in vertical center and on the right screen
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center_vertical">
<Button
android:id="#+id/btnClick"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="Click Me" />
</LinearLayout>
Try adding android:gravity="center" to your LinearLayout. I remember having read somewhere that that might do the trick.

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