Error with relative layout. "is not a sibling" - android

I have two Textviews in a RelativeLayout like this:
<RelativeLayout>
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
(*) android:layout_above="#+id/message"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true" />
<ScrollView android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_weight="1">
<TextView
android:id="#+id/message"
android:layout_width="302dp"
android:layout_height="wrap_content"
android:layout_above="#+id/editText1"/>
</ScrollView>
I want the Textview id'd "message" to be scrollable. So I added it within a ScrollView but where I have put a star (android:layout_above) I am getting the error: #+id/message is not a sibling in the same RelativeLayout
How do I fix this? Any help is appreciated

First of all you have to remove "+" from
This
android:layout_above="#+id/message"
To
android:layout_above="#id/message"
And use TextView's scrolling method rather than scrollview
<TextView
android:scrollbars="vertical" // Add this to your TextView in .xml file
android:maxLines="ANY_INTEGER" // also add the maximum line
android:id="#+id/message"
android:layout_width="302dp"
android:layout_height="wrap_content"
android:layout_above="#id/editText1"/>
Then after in your .java file add following methods for your textview above.
TextView message = (TextView) findViewById(R.id.message);
message.setMovementMethod(new ScrollingMovementMethod());

It is giving this error because your TextView's parent is not relative layout,it's ScrollView. Instead give an id to your ScrollView and then use:
android:layout_above="ScrollView id here"

Give id to your ScrollView and align relative to the ScrollView
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
(*) android:layout_above="#+id/scroll"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true" />
<ScrollView android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_weight="1"
android:id="#+id/scroll">
<TextView
android:id="#+id/message"
android:layout_width="302dp"
android:layout_height="wrap_content"
android:layout_above="#+id/editText1"/>
</ScrollView>

Do not use scrollview to make your TextView Scrollable. Rather use scrolling movement method like this way.
TextView message = (TextView) findViewById(R.id.message);
message.setMovementMethod(new ScrollingMovementMethod());

Move your TextView id to the ScrollView so that above refers to a sibling.
<RelativeLayout> <TextView android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content" (*)
android:layout_above="#+id/message"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true " />
<ScrollView
android:layout_width="wrap_content"
android:id="#+id/message
android:layout_height="wrap_content"
android:layout_weight="1"> <TextView
android:id="#+id/message"
android:layout_width="302dp"/>
</ScrollView>`

Related

TextView Alignment Issue on Android

I am having two TextView in LinearLayout.
<LinearLayout
android:layout_marginTop="-10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/product_discounted_price"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/activity_vertical_margin"
android:layout_marginEnd="#dimen/margin_between_prices"
android:drawablePadding="5dp"
android:gravity="center_vertical"
android:text="AED200000000.00"
android:textColor="#color/black"
android:textSize="#dimen/font_size_sub_normal"
android:visibility="visible" />
<TextView
android:id="#+id/product_unit_price"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="#dimen/activity_vertical_margin"
android:drawablePadding="5dp"
android:gravity="center_vertical"
android:text="AED200000000000.00"
android:textSize="#dimen/font_size_emphasized"
android:visibility="visible" />
</LinearLayout>
I want something like if 2nd TextView doesnt come in single line than it should shift to second line.
Issue is :
With SingeLine=true
With maxLine=1
What I want :
change
android:orientation="horizontal"
to
android:orientation="vertical"
and also add maxline and singleline to textView
It is easy put your text views in a RelativeLayout and all you need to set layout_above or layout_bottom for your TextViews
or you can change orientation:vertical and then the gravity works.
You can also set layout_gravity

Wrapping of multiline text in TextView - Android

I have a multiline TextView with a layout_width="wrap_content" property. The problem is when
the TextView actually becomes multiline then this property just doesn't work. How can I fix this behavior?
Here is illustration:
XML:
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:focusable="false"
android:textSize="16.5dip"
android:padding="2dip"
android:lineSpacingMultiplier="1.1"
/>
It seems that you are using parent view (ViewGroup) where you have defined background for your box. You just need to define background for you TextView instead of ViewGroup.
So, do not use background in your ViewGroup, try to use it in the textview. For example:
<FrameLayout android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:focusable="false"
android:textSize="16.5dip"
android:padding="2dip"
android:lineSpacingMultiplier="1.1"
android:background="#drawable/background_box"
/>
</FrameLayout>

Dynamic TextViews wrapping to next row/line in Linear layout

I am trying to build a UI, where in I have a linear layout which has been defined in the XML.
As per the user's input, I need to add some TextViews to this linear layout. I am able to do this.
My actual problem is, when I have more text views, they are stacked next to each other and some of text views text are hidden or stretched vertically as shown in the image below.
I would like to use the whole width of the linear layout and if the text view can not fit in this row, it should be put in a new row or below the first text view.. I would like the display to be as below.
Following is my Linear layout configuration in XML:
<RelativeLayout
android:id="#+id/RL1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:paddingBottom="5dip"
android:paddingTop="5dip" >
<TextView
android:id="#+id/text1"
android:layout_width="85dip"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:gravity="left"
android:text="Lable 1"
android:textColor="#999999" />
<LinearLayout
android:id="#+id/LL1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toLeftOf="#+id/button1"
android:layout_toRightOf="#+id/text1"
android:gravity="left|center_vertical"
android:orientation="horizontal"
android:paddingLeft="5dip"
android:paddingRight="5dip"
android:paddingTop="3dip" >
</LinearLayout>
<Button
android:id="#+id/button1"
android:layout_width="30dip"
android:layout_height="30dip"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginTop="2dip"
android:background="#drawable/plus"
android:clickable="true"
android:focusable="true"
android:paddingTop="5dip" />
</RelativeLayout>
Can any one please help me in how to realign the same in java code.
I would Like to suggest you about how you can provide equal sizes to all your views in Linear Layout,you can do that by using weight property in the XML file i.e., android:weight for that particular View and when you use this property you should give width=0dp or 0dip.I think this will solve your problem easily.
Please I suggest you first you take full Knowledge of how to use this property in the following Link:-Weight property with an example
Please see:
How to wrap Image buttons in a horizontal linear layout?
How can I do something like a FlowLayout in Android?
You also might search github for FlowLayout.java.
An alternative approach is given in:
Android - multi-line linear layout
In addition, there's a class that adds images into a TextView:
https://stackoverflow.com/a/21250752/755804
which is not the same as wrapping views in the general case, but sometimes may do the job.
i'm korean.
so i don't speak English well, but i'll help you.
first, Create 'item.xml' with four text boxes.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/set_checkbox"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/text2"
android:text="0"
android:layout_weight="1"
android:gravity="center"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/text3"
android:text="0"
android:layout_weight="4"
android:gravity="center"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/text4"
android:text="0"
android:layout_weight="4"
android:gravity="center"/>
</LinearLayout>
second, Create 'main.xml' where 'item.xml' will be dynamically generated.
'orientation' helps to create one line at a time.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
Finally, You can create four TextView per line using the code below.
LinearLayout layout = (LinearLayout)findViewById(R.id.mainxml);
LinearLayout item = (LinearLayout)layout.inflate(this.getContext(), R.layout.itemxml, null);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(MATCH_PARENT, WRAP_CONTENT);
item.setLayoutParams(params);
CheckBox cb = item.findViewById(R.id.set_checkbox);
TextView text2 = item.findViewById(R.id.text2);
TextView text3 = item.findViewById(R.id.text3);
TextView text4 = item.findViewById(R.id.text4);
cb.setChecked(true);
text2.setText("text2");
text3.setText("text3");
text4.setText("text3");
layout.addView(item);
The 10th loop is shown in the following picture.
enter image description here

How to center a two-line text in a TextView on Android?

I want to let it looks like this:
| two |
| lines |
Here is the current layout, not working at all.
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="two\nlines"
android:layout_gravity="center_vertical"
android:layout_centerInParent="true"/>
</RelativeLayout>
Any idea?
Thanks!
If you just want to center it (I'm assuming the \n is working to split the lines), just add android:gravity="center_horizontal" rather than layout_gravity.
Using layout gravity moves the actual TextView, using gravity affects the content of the TextView.
Had to add both gravity and layout_gravity to align both TextView and its content
android:gravity="center_horizontal"
android:layout_gravity="center_horizontal"
if your width is wrap_content, you have to set gravity and layout_gravity both as "center_horizontal"
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="two\nlines"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"/>
However, if your width is "match_parent, you will only have to set gravity as "center_horizontal"
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="two\nlines"
android:gravity="center_horizontal"/>
Hope it helps!
You can use:
TextView tv = (TextView) findViewById(R.id.the_text_view);
tv.setText(Html.fromHtml("two"+"\n"+"lines"));
I use:
android:gravity="center_horizontal"
to center two line text
I think you must do it from Java:
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical">
<TextView
android:id="#+id/the_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_centerInParent="true"/>
</RelativeLayout>
Then:
TextView tv = (TextView) findViewById(R.id.the_text_view);
tv.setText(Html.fromHtml("two<br/>lines"));
Add property
android:lines="2"
where 2 is no of lines you can set this no as your requirment

How do I center text horizontally and vertically in a TextView?

How do I center the text horizontally and vertically in a TextView, so that it appears exactly in the middle of the TextView in Android?
I'm assuming you're using XML layout.
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:text="#string/**yourtextstring**"
/>
You can also use gravity center_vertical or center_horizontal according to your need.
As #stealthcopter commented, in java: .setGravity(Gravity.CENTER);.
And for Kotlin users, .gravity = Gravity.CENTER
android:gravity="center"
This will do the trick
You can also set it up dynamically using:
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
android:layout_centerInParent="true"
This works when used with a RelativeLayout where the layout's height & width are set to wrap_content.
You can also use the combination:
android:gravity="left|center"
Then, if textview width is more than "fill_parent" the text will still be aligned to left (not centered as with gravity set only to "center").
Apply gravity:
TextView txtView = (TextView) findViewById(R.id.txtView);
txtView.setGravity(Gravity.CENTER_HORIZONTAL);
For vertical:
txtView.setGravity(Gravity.CENTER_VERTICAL);
In XML:
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:text="#string/Hello_World"
/>
There are two ways of doing this.
The first in the XML code. You need to pay attention at the Gravity Attribute. You also can find this attribute in the Graphic Editor; it may be easier than the XML EDITOR.
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical|center_horizontal"
android:text="Your Text"
/>
For your specific scenario, the values of gravity will be:
center_vertical|center_horizontal
In the graphical editor you will find all the possible values, even see their results.
If you are using TableLayout make sure to set the gravity of the TableRows to center, too.
Otherwise it will not work. At least it didn't work with me until I set the gravity of the TableRow to center.
For example, like this:
<TableRow android:id="#+id/tableRow2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center">
<TextView android:text="#string/chf" android:id="#+id/tv_chf" android:layout_weight="2" android:layout_height="wrap_content" android:layout_width="fill_parent" android:gravity="center"></TextView>
</TableRow>
You need to set TextView Gravity (Center Horizontal & Center Vertical) like this:
android:layout_centerHorizontal="true"
and
android:layout_centerVertical="true"
And dynamically using:
textview.setGravity(Gravity.CENTER);
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
In my opinion,
android:gravity="center"
is better than,
android:layout_centerInParent="true"
which is better than,
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
at least for formatting text.
For Linear Layout:
In XML use something like this
<TextView
android:id="#+id/textView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical|center_horizontal"
android:text="Your Text goes here"
/>
To do this at run time use something like this in your activity
TextView textView1 =(TextView)findViewById(R.id.texView1);
textView1.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
For Relative Layout: in XML use some thing like this
<TextView
android:id="#+id/textView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerInParent="true"
android:text="Your Text goes here"
/>
To do this at run time use something like this in your activity
TextView textView1 =(TextView)findViewById(R.id.texView1);
RelativeLayout.LayoutParams layoutParams = RelativeLayout.LayoutParams)textView1.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
textView1.setLayoutParams(layoutParams);
Use in the XML file.
Layout file
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:text="#string/stringtext"/>
or:
Use this inside the Java class
TextView textView =(TextView)findViewById(R.id.texviewid);
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
Use this for relative layout
android:layout_centerInParent="true"
and for other layout
android:gravity="center"
If the TextView's height and width are wrap content then the text within the TextView always be centered. But if the TextView's width is match_parent and height is match_parent or wrap_content then you have to write the below code:
For RelativeLayout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Hello World" />
</RelativeLayout>
For LinearLayout:
<?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="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Hello World" />
</LinearLayout>
While using gravity works for TextView, there's an alternate method implemented in API level 17 -
textView.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
Don't know the difference, but it works too. However only for API level 17 or higher.
In RelativeLayout, it will be nice with it.
And another Button and anything else you can add.
The following works nicely for me.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ff314859"
android:paddingLeft="16dp"
android:paddingRight="16dp">
<TextView
android:id="#+id/txt_logo"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="your text here"
android:textSize="30dp"
android:gravity="center"/>
...other button or anything else...
</RelativeLayout>
Use android:textAlignment="center"
<TextView
android:text="HOW WAS\nYOUR\nDAY?"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAlignment="center"
android:id="#+id/textView5"
/>
Easiest way (which is surprisingly only mentioned in comments, hence why I am posting as an answer) is:
textview.setGravity(Gravity.CENTER)
You can just set the gravity of your textview into CENTER.
TextView gravity works as per your parent layout.
LinearLayout:
If you use LinearLayout then you will find two gravity attribute
android:gravity & android:layout_gravity
android:gravity : represent layout potion of internal text of TextView while
android:layout_gravity : represent TextView position in parent view.
If you want to set text horizontally & vertically center then use below code this
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="300dp"
android:background="#android:color/background_light"
android:layout_height="300dp">
<TextView
android:layout_width="match_parent"
android:text="Hello World!"
android:gravity="center_horizontal"
android:layout_gravity="center_vertical"
android:layout_height="wrap_content"
/>
</LinearLayout>
RelativeLayout:
Using RelativeLayout you can use below property in TextView
android:gravity="center" for text center in TextView.
android:gravity="center_horizontal" inner text if you want horizontally centered.
android:gravity="center_vertical" inner text if you want vertically centered.
android:layout_centerInParent="true" if you want TextView in center position of parent view.
android:layout_centerHorizontal="true" if you want TextView in horizontally center of parent view.
android:layout_centerVertical="true" if you want TextView in vertically center of parent view.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="300dp"
android:background="#android:color/background_light"
android:layout_height="300dp">
<TextView
android:layout_width="match_parent"
android:text="Hello World!"
android:gravity="center"
android:layout_centerInParent="true"
android:layout_height="wrap_content"
/>
</RelativeLayout>
If you are trying to center text on a TableRow in a TableLayout, here is how I achieved this:
<TableRow android:id="#+id/rowName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dip" >
<TextView android:id="#+id/lblSomeLabel"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:layout_width="0dp"
android:layout_weight="100"
android:text="Your Text Here" />
</TableRow>
If you are using Relative Layout:
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/stringname"
android:layout_centerInParent="true"/>
If you are using LinearLayout
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/stringname"
android:layout_gravity="center"/>
Try this way,it will work
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAlignment="center"/>
</LinearLayout>
Here is my answer that I had used in my app. It shows text in center of the screen.
<TextView
android:id="#+id/txtSubject"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/subject"
android:layout_margin="10dp"
android:gravity="center"
android:textAppearance="?android:attr/textAppearanceLarge" />
The TextView's height and width are wrap content then the text within the textview always be centered, then make center in its parent layout by using:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Hello.."/>
</RelativeLayout>
For LinearLayout also the code is same :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello.."/>
</LinearLayout>
and pro-grammatically parent is RelativeLayout java code this at run time use something like this in your activity
TextView textView1 =(TextView)findViewById(R.id.texView1);
RelativeLayout.LayoutParams layoutParams = RelativeLayout.LayoutParams)textView1.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
textView1.setLayoutParams(layoutParams);
Actually, we can do better by excluding fontPadding.
<TextView
android layout_height="wrap_content"
android layout_height="wrap_content"
android:includeFontPadding="false"
android:textAlignment="center"
/>
As many answers suggest above works fine.
android:gravity="center"
If you want to center it just vertically:
android:gravity="center_vertical"
or just horizontally:
android:gravity="center_horizontal"
Simply, in your XML file, set the textview gravity to center:
<TextView
android:gravity="center" />
android:gravity="center_horizontal" for align text Center horizontally.
android:gravity="center_vertical" for align text Center vertically.
android:gravity="center" for align text Center both vertically and horizontally.
<TextView
android:layout_width="match_parent"
android:gravity="center_horizontal|center_vertical"
android:layout_height="match_parent" />
You can do like this to get text centered
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center" />

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