A way to Wrap LinearLayout - android

I have been trying to find a solution for this for weeks and keep putting this on my backlist, I am unable to wrap the height of a LinearLayout.
I have a simple LinearLayout
<LinearLayout
android:id="#+id/tagsLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="left"
android:paddingRight="10dp"
android:paddingBottom="5dp"
android:padding="5dp"/>
Then I am adding multiple TextViews using my code into that LinearLayout with Tags Link style
Txt.SetBackgroundResource(Resource.Drawable.roundtext);
Txt.SetPadding(30, 10, 30, 10);
Txt.SetTextColor(global::Android.Graphics.Color.ParseColor("#373944"));
Txt.SetTextSize(Android.Util.ComplexUnitType.Dip, 12);
The results are the following
See the last TextView never goes to the next line
I looked up so many threads and solutions and it turns out that LinearLayout cannot Wrap contents like this Instead I will have to create my own Layout such as FlowLayout
Is there any simple solution to this problem?

You can use GridView instead of LinearLayout.
<GridView
android:id="#+id/tagsLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numColumns="auto_fit"
android:horizontalSpacing="5dp"
android:verticalSpacing="5dp"/>
This should automatically put the TextView to next line. If you want something more dynamic then you use FlowLayout library or StaggeredLayout.Check out this SO which claims that it has alternative to FlowLayout.

Take a look at flexbox-layout.
Easy to use and import with Gradle.

Related

Fixed-width TextView with stretched compound drawable

I'm trying to achieve the following layout: a fixed width TextView aligned to the left of its parent, with the text inside it aligned to the right side of that TextView (that's why fixed width, can it be done other way?) and the rest of the parent is filled with a drawable (simple line). Like this:
It's a ListView containing 2 types of rows and the layout for the rows with lines is quite trivial - LinearLayout with TextView and ImageView (I can post the exact code later if needed). And I'm getting a warning that it could be replaced with a single TextView with compound drawable.
I'm all for optimization so I really tried to follow that advice. Unfortunately I wasn't able to get the same result - the line is either constrained to TextView's width or text is aligned to the right side of the ListItem, now to fixed position.
Am I missing something?
Edit: Apparently it is not actually possible and since there are some other complications (the drawable is now a level-list drawable, which is not always a line and sometimes it has a non-fixed height that I have to set) I will leave it as it is now - linear layout, containing one TextView and one ImageView.
I don't think that you're missing anything. The TextView compound drawable features are not very customizable and in general are not worth the time you spend trying to get them to look right. Some lint warnings are a little overzealous and premature.
The optimization that the lint refers to is something that is better attributed for a fixed size image. In your case, the line has to stretch the rest of the screen length and as such it is not something that can be done with a textview with compound drawable. This kind of lint warning is more of a suggestion rather than something that MUST be done and is detected by just checking for a linear layout with only a textview and an imageview rather than checking what would need to go in the image view. If you already have it working the way you did it I think you should leave it alone.
Your view create from this -
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/time"
android:layout_width="#dimen/today_time_width"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:gravity="right"
android:layout_marginRight="5dp" />
<ImageView
android:layout_gravity="center"
android:id="#+id/border"
android:layout_width="match_parent"
android:layout_height="#dimen/today_current"
android:src="?attr/item_boundary" />
</LinearLayout>
There is no way to achive this using only standart TextView. If you really want to reduce view count you can create your custom TextView class, set layoutWidth to matchParent and draw line from text end to right border. But it's not worth to be doing. Some extra views won't slow your list.
I am not sure if you will be able to achieve what you really want to , but then you could change the linear layout in the link you posted to something like this:
<RelativeLayout
android:id="#+id/relTrial"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/txtTime"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:gravity="right"
android:text="12:45 AM"
android:layout_alignParentLeft="true"/>
<LinearLayout
android:id="#+id/lnrSep"
android:layout_width="fill_parent"
android:layout_height="1dp"
android:gravity="bottom"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_centerVertical="true"
android:orientation="horizontal"
android:background="#android:color/darker_gray"
android:layout_toRightOf="#+id/txtTime"
android:layout_alignParentRight="true"></LinearLayout>
</RelativeLayout>
This way the time text will be right aligned although being at the left side, and the line will also be visible.
Hope that helps.
If I got you right, you want to add bottom border to list view item?
What about to try this:
android:drawableBottom="#drawable/line"

Android TextView doesn't do linebreak in ListView (multiline text)

I have created a 3-level ExpandableListView and have the problem that the TextViews which are used for the 2nd and 3rd level do not support line-breaks if the content is too long. It should be dynamically over more than one line, if needed. The 1st level TextView does it well (automatically) and I actually had the same settings in the xml for all three TextViews. Followed are the layout xmls, the one TextView with the id groupname is for the 2nd level (e.g. the first red X in the picture below) and the one with id childname is for the 3rd level (e.g. the second and third red X in the picture below). It should all be like at the green hook in the picture.
"singleLine=false" seems not to work. Also tried some different options found in other SO posts, but what I've testet haven't worked for me. Like ellipsize, scroll horizontale, different layout_width and so on. The only thing worked is to set a fixed layout_width on x hundred dp, but this is not dynamically, I'm right?
Would be great if anybody could help me with this. Lot of thanks!
Here's a screenshot:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent" >
<TextView
android:id="#+id/childname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="60dp"
android:layout_marginLeft="60dp"
android:textColor="#AAAAAA"
android:singleLine="false"
android:text=""
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/groupname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_marginLeft="45dp"
android:layout_marginRight="60dp"
android:textColor="#555555"
android:singleLine="false"
android:gravity="center_vertical"
android:text=""
android:textAppearance="?android:attr/textAppearanceMedium" />
Add this line in your xml
android:inputType="textMultiLine"
or
Add text using coding like this, where you can add line break using '\n'(But here you have to manually add breaks where you want them)
TextView txt1 = (TextView) findViewById(R.id.childname);
txt1.setText("Hi \nHello \nHow are You");
Results will be
Hi
Hello
How are You
Edit
Accepted Answer - removing the line 'android:layout_alignParentLeft="true"
try using LinearLayout instead of RelativeLayout as parent for the TextView
I had add this attribute to my TextView inside ListView, and makes it do line break correct.
android:maxWidth="xxxdp"
F.Y.R.

Text align to right and bottom of another text

Excuse my next picture, done in a hurry :):
Please can anybody tell me how can I use Layouts and TextViews in Android to get something similar with I draw.
The box with one TEXT is a String and also the box with TEXT TEXT TEXT is a String.
Thank you.
I don't thing you can use 2 TextView instances for this situation. A workaround could be to use only one TextView and do your text formatting programmatically.
In the RelativeLayout, inside each TextView tag use these attributes as per your requirement
android:layout_below="Id of the TextView"
android:layout_above="Id of the TextView"
android:layout_toLeftOf="Id of the TextView"
android:layout_toRightOf="Id of the TextView"
something like this should do the trick. The keys are layout_below and layout_toRightOf
<RelativeLayout
android:layout_width="fill_parent" android:layout_height="fill_parent">
<TextView android:id="#+id/LeftTextView"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:paddingRight="10dp" android:paddingBottom="10dp"
android:text="HI">
<TextView android:id="#+id/WholeTextView"
android:layout_height="fill_parent" android:layout_width="fill_parent"
android:layout_below="#id/LeftTextView"
android:layout_toRightOf="#id/LeftTextView">
</RelativeLayout>
For some reason, that's a bad approach even if it works. I would suggest use a different textview for the bottom row. It may work with some combination in Relative Layout, but it may probably not be the same in each and every screen/resolution.
Have you tried using compound drawables?
textview2.setCompoundDrawables(textview1, null, null, null);

Android Layout Issue

Hi I'm having a daft problem with my android application.
Currently it looks like this:
Is there a way of making the button go to the bottom in the middle? I've tried messing around but same effect. Also tried changing the fill_parent/wrap_content, relative/linear layouts and gravities.
This is the screenshot of the .xml file
many thanks.
There are a couple things you can do to get this, with the relative layout you're using this would work. Add these lines to your button section
android:layout_below="#+id/android:empty"
android:layout_alignParentBottom="true"
android:layout_alignParentCenter="true"
Add these two attributes to your Button
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
and these one to your textview:
android:layout_above="#id/insertion"
android:layout_height="fill_parent"
Read the API reference here:
http://developer.android.com/reference/android/widget/RelativeLayout.LayoutParams.html
May be you want to use a linear layout instead of the relative one...
With the LinearLayout you can place your item without thinking on their relative position.
You can place a vertical linear layout and inside it another layout for the list of reminders.
<LinearLayout android:orientation="vertical">
<ListView android:width="fill_parent"android:weight="2" />
<Button android:width="wrap_content" android:weight="1" />
</LinearLayout>
With weight option, you can choose to make the Button to be painted before the ListView.
EDIT: Reading other answers, I'm considering if you really need a RelativeLayout to place a button under a listview. I think you should learn how to handle simple view before to start using something more complex. If LinearLayout solve your problem, why don't use it? This is a personal observation...

Android EditText won't take up remaining space

In my Android app, I have a tabbed Activity. In one of the tabs I have two TextViews and two EditTexts.
The first EditText is only one line, and that's fine. However, I want the other EditText, android:id="#+id/paste_code", to take up the remaining space, but no matter what I do to it, it will only show one line. I don't want to manually set the number of lines, since the number that would fit on the screen differs based on your device.
Here's the relevant code. It's nested inside all the necessary components for a tabbed Activity.
<ScrollView
android:id="#+id/basicTab"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Paste title"
android:layout_weight="0" />
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="#string/paste_title_hint"
android:id="#+id/paste_title"
android:lines="1"
android:gravity="top|left"
android:layout_weight="0" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Paste text"
android:layout_weight="0" />
<EditText
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:hint="#string/paste_hint"
android:id="#+id/paste_code"
android:gravity="top|left"
android:layout_weight="1" />
</LinearLayout>
</ScrollView>
Since the accepted answer doesn't address the situation fully, here's a proper fix for people coming to this while searching:
Firstly, Romain Guy from the Android dev team addresses this well in this blog post:
http://www.curious-creature.org/2010/08/15/scrollviews-handy-trick/
Essentially, your ScrollView needs to contain the android:fillViewport="true" attribute.
If things aren't working once you've done that, here are a couple of things to check:
The layout inside the ScrollView (such as a LinearLayout) needs to have layout_height="wrap_content"
The view(s) you want to expand should have layout_height="wrap_content"
The view(s) you want to expand should have layout_weight="1.0" or similar
Don't forget to set minLines="3" or similar in the view(s) you want to expand if you don't want it/them to shrink too much.
The problem seems to come from your use of ScrollView. I've tested your code using a ScrollView as the parent container, and got the same problem. However if I replaced the ScrollView with a LinearLayout, then the second EditText properly expanded to fill the whole screen. The problem must be that ScrollViews are designed to wrap to their smallest possible size, regardless of what settings you put in android:layout_height. I experimented with another few layouts, e.g. a RelativeLayout using layout_above and layout_below, but those only affected its maximum size, not its size when empty. Unfortunately, that means I'm not sure how to solve your problem... Is there a way you can redesign your layout to use something other than the ScrollView as the parent container?

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