I'm fiddling around with writing android apps and what I'm currently trying to do is to have a text box with a send button at the top of the page and a black button bar at the bottom.
I understand from this question that the correct way to do this would be to write something like this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<LinearLayout
android:layout_height="wrap_content"
<EditText android:id="#+id/edit_message"
android:layout_weight="1"
android:layout_width="0dp"
android:hint="#string/edit_message"
android:layout_gravity="top|center"/>
<Button
android:layout_width="wrap_content"
android:text="#string/button_send"
android:onClick="sendMessage"/>
</LinearLayout>
<LinearLayout android:id="#+id/footer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
style="#android:style/ButtonBar">
<Button android:id="#+id/saveButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/menu_done" />
<Button android:id="#+id/cancelButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/menu_cancel" />
</LinearLayout>
</LinearLayout>
but the black bar and the text box just end up on top of each other :(
I'm not sure if these are cut-and-past errors, but I noticed a few things in the xml. The first nested linear layout is missing a '>' before the EditText and doesn't specify a layout_height. And the first button also doesn't have a layout_height.
Related
I am creating an Android app which has a main RelativeLayout and some LinearLayout within it.
Now i have this problem. When dragging items to the editor, e.g. a LinearLayout, it doesn't fit to the full width of the screen. How can I make this possible? This is my XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:gravity="fill"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<LinearLayout
android:id="#+id/itemDetailLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:orientation="vertical"
android:fillViewport="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="#+id/itemImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="40dp"
android:minWidth="40dp"
android:src="#drawable/ic_launcher" />
<TextView
android:id="#+id/itemName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:text="Name"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:fillViewport="true" >
<TextView
android:id="#+id/itemRecentHigh"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Recent High" />
<TextView
android:id="#+id/itemRecentLow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Recent Low" />
<TextView
android:id="#+id/itemAverage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Average" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/listViewLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/itemDetailLayout"
android:layout_marginTop="10dp"
android:fillViewport="true"
android:gravity="fill_horizontal"
android:orientation="vertical" >
<ListView
android:id="#+id/searchListView"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:fillViewport="true" >
</ListView>
</LinearLayout>
Added a screenshot for more info. Added blue background to have some contrast.
Replace this:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
With
android:layout_width="match_parent"
android:layout_height="wrap_content"
into your LinearLayout or Remove all the Padding from main RelativeLayout
Removing padding makes the linear layout fit the entire screen of the device
The space between the blue part and the "end of the screen". On the sides and above the part where the back button and home button are.
Remove the padding from the root RelativeLayout.
Try
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical>
// Other views within the linear layout
</LinearLayout>
I suppose you are using Eclipse. Personally, I hate the Graphical Editor of Eclipse and I usually write the XML code directly because working with the editor is a real pain
Don't use fill_parent as it is deprecated.
Instead to your RelativeLayout set
android:layout_width="fill_parent"
android:layout_height="fill_parent"
Then, to the list view that you want to fill the rest of the screen, you can set this tags
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
By doing so, you are telling the XML that you want your ListView to do what fill_parent used to do in previous versions of Android.
Kind regards!
you should try something like the following :
<LinearLayout
android:id="#+id/itemDetailLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
...
</LinearLayout>
what i mean you should do this :
android:layout_width="fill_parent"
for every LinearLayout that you want its width to fill_parent .
FILL_PARENT means that the view wants to be as big as its parent as mentioned in the documentation .
and please give me some feedback
Hope That Helps .
I have a layout with listview and two buttons side by side at the bottom of the listview. Everything work fine until I have added the swiperefreshlayout for my listview.
My codes are as below.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#FFF"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:id="#+id/search_bar"
android:background="#color/colorPrimaryDark"
android:orientation="vertical"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
>
<EditText
android:id="#+id/keyword_editText"
android:layout_width="fill_parent"
android:layout_height="30dp"
android:background="#drawable/search_edit_text"
android:hint="Keyword"
android:textColorHint="#color/list_item_title"
android:textColor="#000"
android:layout_centerVertical="true"
android:maxLines="1"/>
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/listView_layout"
android:orientation="vertical"
android:layout_below="#+id/search_bar"
>
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/refresh"
android:layout_height="match_parent"
android:layout_width="match_parent">
<ListView
android:layout_width="wrap_content"
android:layout_height="0dip"
android:layout_weight="1"
android:id="#+id/RsListView"
android:dividerHeight="1dp"
android:divider="#D3D3D3"/>
</android.support.v4.widget.SwipeRefreshLayout>
<LinearLayout
android:id="#+id/test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<Button
android:id="#+id/req_history_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Request History"
android:layout_weight="1"
android:background="#drawable/request_history_button"
android:textColor="#drawable/button_text_color"
/>
<Button
android:id="#+id/apprv_history_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Approval History"
android:layout_weight="1"
android:background="#drawable/approval_history_button"
android:textColor="#drawable/button_text_color"
/>
</LinearLayout>
</LinearLayout>
Sorry for dumping my codes here as I can't figure out any other way for you guys to understand my code.
Please help
Inside LinearLayout usually all children have even dimension according to orientation. However, when you would like one child to take a little amount of place and another to fill the rest, you might be interested in layout_weight parameter. If the child that should fill the space gets android:layout_weight="1" it will fill the space making a place for other views.
In order to see the buttons add android:layout_weight="1" to SwipeRefreshLayout and set android:layout_height="0dp". That will make your buttons visible.
I have the following as the layout of each item in a ListView:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="horizontal"
android:layout_height="match_parent" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
But each time I'm getting this:
As you can see, both buttons as well as TextViews are disabled (take a look at their appearance). Please note that each individual item in ListView takes action when I click them (I've defined OnItemClickListener()); the only problem (so far) is the appearance of buttons and textviews. Here's main_layout.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_weight="1"
android:layout_height="0dp"
android:hint="Text empty"
android:text="TextView" />
<ListView
android:id="#+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="9" >
</ListView>
</LinearLayout>
It's working fine only. The screen is disabled because when the emulator opens, you should use it. If you kept it in idle, it will hide these controls. when you click anywhere inside the screen of the emulator. It will take control.
There is a very high possibility that a question similar to this has been asked earlier, but I couldn't figure out the related keywords to find the same.
I am making an application, and the layout I designed is:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".Scheduler" >
<EditText
android:id="#+id/addressee"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="#string/addresseeHint"
android:inputType="number" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="2" >
<EditText
android:id="#+id/date"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="#string/scheduleDate"
android:inputType="date" />
<EditText
android:id="#+id/time"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="#string/scheduleTime"
android:inputType="time" />
</LinearLayout>
<EditText
android:id="#+id/smsText"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="top"
android:hint="#string/smsTextHint"
android:inputType="text" />
<Button
android:id="#+id/scheduleText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="onClick"
android:text="#string/scheduleTextButton" />
</LinearLayout>
The layout which appears is as below:
What I want will look something like this:
The problem is the Button at the bottom (id:scheduleText) disappears, reason being the layout_height parameter of the EditText set just above it is fill_parent. But I guess I can't provide any particular value to it as then the layout will look different on different devices ?
How can I fix this bug ?
Thanks
Hi your EditText has a height of fill parent which makes it fill the parent and the button won't be visible so make it like this:
<EditText
android:id="#+id/smsText"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:gravity="top"
android:hint="#string/smsTextHint"
android:inputType="text" />
UPDATE:
I updated the answer to extend the edit text and fill the screen but let space for the button as well. The trick is to use weight..
I want to put a scrollable EditText above a row of buttons such that the text component fills all the vertical space left free by the buttons. This is proving surprisingly difficult, not least because the ADT is buggy: it suggests that this layout will do and it does in Eclipse but not in the real application!
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText android:id="#android:id/text1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/view1"/>
<LinearLayout android:id="#id/view1"
android:orientation="horizontal"
android:layout_alignParentBottom="true">
<!-- buttons go here -->
</LinearLayout>
</RelativeLayout>
In this layout the text stretches to the full screen, as you might expect, i.e., it goes under the button but the ADT graphical layout tool shows it stopping just above the button. OTOH if you give it a wrap_content height then of course it doesn't stretch. layout_weight is of no help either.
So, is there a way? You must test your answer in the emulator or on a real device, not merely in Eclipse.
Precision: what makes me think this is not working and that the text widget extends under the buttons is the shape of the scrollbar at the bottom (see pic. below): it should be rounded at both ends and instead it looks like the bottom extends farther. If you compares its shape at the bottom with the shape it has at the top (which unfortunately I was unable to capture: it disappears too fast) it is very clearly different. OTOH the text widget boundary looks as expected. This is very confusing. Maybe just a minor bug in Android?
try this code :
<?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">
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:inputType="textMultiLine" >
<requestFocus></requestFocus>
</EditText>
<LinearLayout
android:layout_height="wrap_content"
android:id="#+id/linearLayout1"
android:layout_width="match_parent">
<Button
android:text="Button"
android:layout_weight="1"
android:layout_height="wrap_content"
android:id="#+id/button1"
android:layout_width="0dp"></Button>
<Button
android:text="Button"
android:layout_weight="1"
android:layout_height="wrap_content"
android:id="#+id/button2"
android:layout_width="0dp"></Button>
<Button
android:text="Button"
android:layout_weight="1"
android:layout_height="wrap_content"
android:id="#+id/button3"
android:layout_width="0dp"></Button>
</LinearLayout>
</LinearLayout>
This should work
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<LinearLayout android:id="#+id/view1" android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button android:text="Button" android:layout_weight="1"
android:layout_height="wrap_content" android:id="#+id/button1"
android:layout_width="0dp"/>
<Button android:text="Button" android:layout_weight="1"
android:layout_height="wrap_content" android:id="#+id/button2"
android:layout_width="0dp"/>
<Button android:text="Button" android:layout_weight="1"
android:layout_height="wrap_content" android:id="#+id/button3"
android:layout_width="0dp"/>
</LinearLayout>
<EditText android:id="#+id/text1" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:layout_above="#id/view1"
android:gravity="top"/>
</RelativeLayout>
I did the same thing with TextView and a Button at the bottom.I tried to put EditText in place of TextView there and it works fine for me. You can try this -
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#FFFFFF">
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/button"
android:text="Add New Template"
android:layout_gravity="bottom"
android:layout_alignParentBottom="true"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/editText"
android:layout_alignParentTop="true"
android:layout_above="#id/add_acronym"
/>
</RelativeLayout>
Here is the snapshot-