I've been trying to create what I think is a relatively simple layout for the past hour.
What I want is to have an edit text take up the vertical real estate left over after my buttons and labels are put onto the screen. I've found plenty of information on how to do that here at SO and I feel like I've implemented that information here (layout_weight and 0dip height), however as soon as I put in the 0dip height my edittext is just not displayed.
What am I missing here?
Edit: Turns out that my Layout2 was set to match_parent and this leaves 0 available space for the weighted children to occupy. I changed the behavior there to wrap_content and all worked great.
I'm targeting Android 2.3.3
Here's my layout xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/description"
android:textAppearance="?android:attr/textAppearanceSmall" />
<EditText
android:id="#+id/editText2"
android:layout_width="match_parent"
android:layout_height="0dip"
android:inputType="textMultiLine"
android:layout_weight="1" >
<requestFocus />
</EditText>
<Spinner
android:id="#+id/spinner1"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/save" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/clear" />
</LinearLayout>
</LinearLayout>
because linearLayout2 fills out the parent. linearLayout2 must have layout_weight behaviour or own height not match_parent.
Related
I want to present in my layout an EditText and a Button side by side with a small space (margin) between them. I don't want to set a fixed size (I think that's a bad habit).
How to do that?
My Try:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_alignParentLeft="true" />
<Button
android:id="#+id/btn_search"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_gravity="right"
android:text="Search" />
</RelativeLayout>
You're using a RelativeLayout; however, you cannot created a flexible design within that type of ViewGroup. You must use a LinearLayout.
We use android:layout_weight="1" along with the android:layout_width="0dp" to create a flexible control. Adjust the weight number for different size ratios.
Afterwards, we use android:layout_margin on both controls so the resulting weighted size of each is equal.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<EditText
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:layout_marginRight="8dp" />
<Button
android:id="#+id/btn_search"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="Search"
android:layout_marginLeft="8dp" />
</LinearLayout>
You can use Linear layout with horizontal orientation and add an EditText and Button in the following way
<LinearLayout
orientation="horizontal"
layoutwidth="match_parent"
layoutheight="wrap_content">
<EditText
layoutwidth="0dp"
layoutheight="wrap"
layout_weight=".8"/>
<Button
layoutwidth="0dp"
layoutheight="wrap"
layout_weight=".2"/>
</LinearLayout>
Hope this will solve your problem. Make sure to change the weights according to your needs.
Thanks
Use Linear layout to show both side by side and use 'match_parent' and 'wrap_content' appropriately.
Here's a piece of xml code
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" >
<EditText
android:id="#+id/et"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10" >
<requestFocus />
</EditText>
<Button
android:id="#+id/go"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Go!!" />
</LinearLayout>
I want to put in the same row a TextView, and Edittext and a button but I am having the problem that the button is not aligned properly to left and in small screens edittext fills entire with.
Small screen:
Big Screen:
My codification is as follows:
<LinearLayout
android:id="#+id/layout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/address_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/address_textview"
android:textStyle="bold" />
<EditText
android:id="#+id/address_edittext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="#string/address_textview_hint"
android:imeActionLabel="#string/search_button"
android:imeOptions="actionDone"
android:inputType="textCapWords"
android:nextFocusDown="#id/address_edittext"
android:nextFocusUp="#id/address_edittext"
android:singleLine="true" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="right" >
<Button
android:id="#+id/go_button"
android:layout_width="50dp"
android:layout_height="35dp"
android:text="Go" />
</RelativeLayout>
</LinearLayout>
Apply a weight to your EditText so it will take up as much room as it can while letting the other two elements do the normal wrap_content. To do this, remove the relative layout container and then change the EditText width to "0dp" and give it a layout_weight of "1" as follows:
<LinearLayout
android:id="#+id/layout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/address_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/address_textview"
android:textStyle="bold" />
<EditText
android:id="#+id/address_edittext"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:hint="#string/address_textview_hint"
android:imeActionLabel="#string/search_button"
android:imeOptions="actionDone"
android:inputType="textCapWords"
android:nextFocusDown="#id/address_edittext"
android:nextFocusUp="#id/address_edittext"
android:singleLine="true" />
<Button
android:id="#+id/go_button"
android:layout_width="50dp"
android:layout_height="35dp"
android:text="Go" />
</LinearLayout>
First, many people will tell you that hint is Android's solution for not needing the label. I don't care if you use the label or not but it does save you space, especially on smaller screens. That was just an FYI.
Now, your RelativeLayout that only has a Button appears to be useless...I would remove that. You can use layout_weight so that each View takes up the appropriate amount of space. Make sure to make the layout_width="0dp". So it may look something like
<LinearLayout
android:id="#+id/layout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/address_textview"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="2"
android:gravity="center"
android:text="#string/address_textview"
android:textStyle="bold" />
<EditText
android:id="#+id/address_edittext"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3"
android:hint="#string/address_textview_hint"
android:imeActionLabel="#string/search_button"
android:imeOptions="actionDone"
android:inputType="textCapWords"
android:nextFocusDown="#id/address_edittext"
android:nextFocusUp="#id/address_edittext"
android:singleLine="true" />
<Button
android:id="#+id/go_button"
android:layout_width="0dp"
android:layout_height="35dp"
android:layout_weight="1"
android:text="Go" />
</LinearLayout>
Here I used 2,3,1 for the weights of your TextView, EditText, and Button respectively. You may need to change those to get exactly what you want but that should give you a start.
Layout weigth is ideal for designing layouts that adjust to screen size. However, make sure to set layout_width to 0dp, or it won't work properly.
Use like this:
android:layout_width="0dp"
android:layout_weight="1"
I'm going to assume you mean the button is not properly aligned to the right.
It's because your RelativeLayout's android:width="wrap_content", but it should be android:width="match_parent".
Also, you'd be better off setting your EditText's android:width="0dp" and adding android:weight="1" so that it expands/contracts between screen sizes.
i am desinging a xml
<?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"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.05"
android:background="#000000"
android:orientation="horizontal" >
<Button
android:id="#+id/btncancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center"
android:background="#CCCCCC"
android:text="Cancel" />
<Button
android:id="#+id/btnadd"
android:layout_width="82dp"
android:layout_height="wrap_content"
android:gravity="right"
android:background="#3399FF"
android:text="Add" />
</LinearLayout>
</LinearLayout>
for button "Add" android:gravity=right is not working.i have give a layout:margin,then only its moving right.can anyone help me out.
It's a little unclear what you want, but do notice the following:
gravity affects the contents of the widget i.e. your button text.
layout_gravity affects positioning of the widget in the parent layout
So if you want the button to be on right, change gravity to layout_gravity.
Use RelativeLayout instead of LinearLayout.
and use android:layout_alignParentRight="true" for btnadd.
EDIT :
Code :
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.05"
android:background="#000000"
android:orientation="horizontal" >
<Button
android:id="#+id/btncancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center"
android:background="#CCCCCC"
android:text="Cancel" />
<Button
android:id="#+id/btnadd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_gravity="right"
android:background="#3399FF"
android:text="Add" />
</RelativeLayout>
Change the LinearLayout to be as RelativeLayout
and instead of android:gravity="right" use android:layout_alignParentRight="true"
It is because you use LinearLayout (orientation horizontal)
Try to use relative layout
you are using linear layout in linear layout your layout depends on orientation like you are using vertical:
use relative layout instead to solve your problem,and give margins you want
also to align your button right use:
android:layout_alignParentRight="true"
your problem would definetly be solved with this.
it was because of you are using android:orientation="horizontal"in Linear Layout
use this android:orientation="vertical"
or use this i modified your code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/RelativeLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.05"
android:background="#000000"
android:orientation="horizontal" >
<Button
android:id="#+id/btncancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="#CCCCCC"
android:text="Cancel" />
<Button
android:id="#+id/btnadd"
android:layout_width="82dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="#3399FF"
android:text="Add" />
</RelativeLayout>
If you want to achieve something like this:
You can do that either with RelativeLayout or LinearLayout.
For LinearLayout you explicitely add space between the buttons. This is because the android:layout_gravitypositions the view only within the space, that LinearLayout has given. And this space is not the LinearLayout itself, but the sum of all views, that were layed out linearly (as the name says).
Here's my way of putting the two buttons:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<Button
android:id="#+id/btnadd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add" />
<ImageView
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="#android:color/transparent" />
<Button
android:id="#+id/btncancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel" />
</LinearLayout>
I always prefer LinearLayout over RelativeLayout as I experienced LinearLayout as more robust, especially on Android's 2.x versions.
BTW: The difference between android:layout_gravity and android:gravity:
The layout_gravity tells the parent layout of a view to position the whole view within the bounds that the layout defines. In case of LinearLayout this is the space that was allocated by linearly putting the views one after the other.
The gravity tells the view to position its foreground within the available space. You might have seen, that your Add-Button has shown the text on the right side.
The following is the XML of my layout. It explicitly states that the title, time and description TextViews should be under the image of the alarm. However, as the screen shot shows, the TextViews have moved into the ImageView. Why does this happen and how can I fix this? The problem only started happening when I added the scrollview.
XML
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/img_alarm"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/alarm"
android:layout_centerInParent="true"
android:contentDescription="#string/content_description_layout_alarm"/>
<TextView
android:id="#+id/lbl_alarm_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20dip"
android:textStyle="bold"
android:layout_centerHorizontal="true"
android:layout_below="#+id/img_alarm"
android:layout_alignLeft="#+id/img_alarm"
android:text="#string/empty"
/>
<TextView
android:id="#+id/lbl_alarm_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20dip"
android:textStyle="bold"
android:layout_centerHorizontal="true"
android:layout_below="#+id/img_alarm"
android:layout_alignRight="#+id/img_alarm"
android:text="#string/empty"
/>
<TextView
android:id="#+id/lbl_alarm_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_below="#+id/lbl_alarm_title"
android:layout_alignLeft="#+id/lbl_alarm_title"
android:layout_alignRight="#+id/lbl_alarm_time"
android:maxLines="1"
android:ellipsize="marquee"
android:text="#string/empty"
/>
<Button
android:id="#+id/btn_stop"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/lbl_alarm_description"
android:layout_centerHorizontal="true"
android:layout_marginTop="5dip"
android:paddingLeft="20dip"
android:paddingRight="20dip"
android:text="#string/stop_layout_alarm"
android:gravity="center" />
</RelativeLayout>
</ScrollView>
Image
Cute app :)
hmm... not sure why it's doing it, looks like you have the right code, without busting out eclipse. but i've also had some weird bugs with relativelayout that i didn't understand and didn't have time to debug.
i do know of an alternative way you can accomplish what you're looking for -
have a scrollview that encases a linearlayout instead of a relative layout. Do these things:
For the linearlayout, you can set orientation = vertical so that it's still a top down order.
For the part where you need two textviews where one is aligned to the right and the other is aligned to the right, you need another inner linearlayout with its orientation=horizontal. then have one element align parent left, and the other align parent right. add a weightSum=1 attribute to this linearlayout and have each of the two textviews layout_width=0.5 so that each is half the width of the screen
Apply a weightSum=1 attribute to your outer most linearlayout, and see each element inside so that it's layout_weight sum adds up to 1. layout_weight will allow an element to take up that much % of real estate on the screen. like if you set your imageView to have android:layout_weight=0.8 then it'll take up 80% of the screen... since mathematically, (layout_weight/weightSum) = (.08/1) = 80%
try to use that mechanism instead, and if should work :) if it's confusing i can give code
example
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1">
<ImageView
android:id="#+id/img_alarm"
android:layout_width="match_parent"
android:layout_height="0dip"
android:src="#drawable/alarm"
android:layout_weight="0.7"
android:contentDescription="#string/content_description_layout_alarm"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.1">
<TextView
android:id="#+id/lbl_alarm_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textSize="20dip"
android:textStyle="bold"
android:text="#string/empty"
/>
<TextView
android:id="#+id/lbl_alarm_time"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textSize="20dip"
android:textStyle="bold"
android:text="#string/empty"
/>
</LinearLayout>
<TextView
android:id="#+id/lbl_alarm_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="0.1"
android:maxLines="1"
android:ellipsize="marquee"
android:text="#string/empty"
/>
<Button
android:id="#+id/btn_stop"
android:layout_weight="0.1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="5dip"
android:paddingLeft="20dip"
android:paddingRight="20dip"
android:text="#string/stop_layout_alarm"
android:gravity="center" />
</LinearLayout>
</ScrollView>
i hope this deserves at least an upvote for the effort :D
I have following three button in a Linear Layout with width fill_parent.
How can I set the width of these buttons to equally cover the whole screen area?
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/btnReplyMessage"
android:gravity="left"
android:text="Reply"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/btnMarkAsUnread"
android:gravity="left"
android:text="Mark as unread"
/>
<ImageButton
android:id="#+id/btnDeleteMessage"
android:src="#drawable/imgsearch"
android:gravity="right"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignParentRight="true"
/>
Give all buttons the following properties
android:layout_width="fill_parent"
android:layout_weight="1"
fill_parent tells them to consume as much width as possible, and weight determines how that width shall be distributed, when more than one control are competing for the same space. (Try playing around with different values of weight for each button to see how that works)
You should just specify these attributes for each button:
android:layout_width="fill_parent"
android:layout_weight="1"
So it should be something like that:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"/>
</LinearLayout>
you can use following code:
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"/>
You must to do 0dp in width on every button.