I have three images in my drawable folder, and an XML Image Button code:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">\
<item android:state_pressed="true"
android:drawable="#drawable/happycarrot" /> <!-- pressed -->
<item android:state_focused="true"
android:drawable="#drawable/largerunicornbutton2" /> <!-- focused -->
<item android:drawable="#drawable/largerunicornbutton" /> <!-- default -->
</selector>
In my layout folder, I have my main XML:
<?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="fill_parent"
>
<ImageView
android:src="#drawable/button"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
></ImageView>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/hello"
/>
</LinearLayout>
When I run it in the emualtor I only get the first image. It doesn't do anything else. Is there anything I can do to solve this?
Using a Linearlayout instead of a relative one fixes the issue.
Related
I want to design like the image given below: when I select any button it should appear up arrow with background color on selected button.
Use button selector for it like this. or follow this link http://www.mkyong.com/android/android-imagebutton-selector-example/
button_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/button_pressed_yellow"
android:state_pressed="true" />
<item android:drawable="#drawable/button_focused_orange"
android:state_focused="true" />
<item android:drawable="#drawable/button_normal_green" />
</selector>
activity_main.xml
<?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" >
<Button
android:id="#+id/imageButtonSelector"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/new_button" />
</LinearLayout>
This is what is happening:
This is the source image:
This is part of the xml layout:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/background_headers"
android:orientation="horizontal" >
<AutoCompleteTextView
android:id="#+id/etNewItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:completionThreshold="2"
android:dropDownHeight="wrap_content"
android:dropDownWidth="wrap_content"
android:hint="#string/et_newitemhint"
android:inputType="text|textCapSentences"
android:layout_centerVertical="true"
style="#style/DialogEditText"
android:layout_marginRight="10dp"
android:singleLine="true" />
<Button
android:id="#+id/btnAddNew"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:background="#drawable/btn_add"
android:layout_centerVertical="true" />
</RelativeLayout>
This is the Selector xml for the button:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_focused="true"
android:drawable="#drawable/btn_add_pressed"/>
<item android:state_pressed="true"
android:drawable="#drawable/btn_add_pressed"/>
<item android:drawable="#drawable/btn_add_normal"/>
</selector>
Why is this button horizontally resizing in 4.x.x? The source graphic did use to be a 9-patch, but it did exactly the same thing, so I changed it to a normal png, with no result.
The odd thing is is that this is the only graphic which exhibits this behaviour. I have it in an actionbar somewhere: same thing; I have it in a dialog too: same thing.
My 2.2.2 and 2.3.6 test devices show the button as it should be, but any of my test devices of 4.x.x show the elongated button.
First, make these:
res/drawable/button_add_normal.xml
<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/btn_add_normal"
android:tileMode="disabled"
android:gravity="top" >
</bitmap>
res/drawable/button_add_pressed.xml
<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/btn_add_pressed"
android:tileMode="disabled"
android:gravity="top" >
</bitmap>
Then use this as selector:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_focused="true"
android:drawable="#drawable/button_add_pressed"/>
<item android:state_pressed="true"
android:drawable="#drawable/button_add_pressed"/>
<item android:drawable="#drawable/button_add_normal"/>
</selector>
I didn't manage to reproduce this on my devices. However, I still have a solution: you can use exact sizes like this:
android:layout_width="50dp"
android:layout_height="50dp"
This way the image should look the same on every device.
i want to make image button, so when it pressed i will replase the not-pressed image to pressed image of the button, and then go to other activity. i have two different images in drawable.
i have two xml files:
first one- load the main activity: background and image button
<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:background="#android:color/black"
android:orientation="vertical" >
<ImageButton
android:id="#+id/b1_l"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/s1"
android:scaleType="centerCrop"
android:background="#color/trans"
android:src="#drawable/b1_l" />
</RelativeLayout>
second one:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="false"
android:drawable="#drawable/image_not_pressed" />
<item android:state_pressed="true"
android:drawable="#drawable/image_pressed"" />
</selector>
what is the code that i need to write in addition to my xml?
or can i pass the xml and write it only as code...?
thanks!
you need to usually have drawable for pressed and default(unpressed) state. You can have the xml file like this(below) for that. You need to put this xml file in the drawable folder and then use as src for ImageButton or background source in case of Button.
Lets name it is mybutton.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:state_pressed="true"
android:drawable="#drawable/your image name" />
<item android:state_focused="false" android:state_pressed="true"
android:drawable="#drawable/your image name" />
<item android:drawable="#drawable/your image name" />
</selector>
You layout file for main activity:
<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:background="#android:color/black"
android:orientation="vertical" >
<ImageButton
android:id="#+id/b1_l"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/s1"
android:scaleType="centerCrop"
android:background="#color/trans"
android:src="#drawable/mybutton" />
</RelativeLayout>
You migth want do check out android developer guide on this
http://developer.android.com/guide/topics/ui/controls/button.html
I realize this has been asked multiple times, but my image is changing size when it is pressed (which is should be the same size, but a different image). I've previously tried setting the size of the button in java, but it didn't work either. Here is my code.
XML Selector
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="#drawable/testbuttonpressed" /> <!-- pressed -->
<item android:drawable="#drawable/testbutton" /> <!-- default -->
</selector>
XML
<?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="#drawable/backtest1">
<Button
android:id="#+id/start_button"
android:layout_width="225px"
android:layout_height="55px"
android:layout_marginTop="10dp"
android:layout_gravity="center"
android:text="#string/start"
android:background="#drawable/buttonsxml"
/>
</LinearLayout>
It turns out my pictures were a pixel off...
I am using this tutorials and I want to add selectors for this list view. I tried some codes but it doest work. How can I do it.
I used code as list_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true"
android:drawable="#drawable/list_selector_background_focus" />
<item android:state_pressed="true"
android:drawable="#drawable/list_selector_background_pressed" />
</selector>
and my List view
<ListView
android:id="#+id/select_names_tags_lv"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:listSelector="#drawable/list_selector"
android:layout_alignParentTop="false"
android:layout_gravity="center_vertical">
</ListView>
Just change a word here from listSelector to background. Because you want it as the background drawable selector, right?
<ListView
android:id="#+id/select_names_tags_lv"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/list_selector"
android:layout_alignParentTop="false"
android:layout_gravity="center_vertical">
</ListView>
EDIT:
try changing your selector file to (I changed the order of the two items):
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="#drawable/list_selector_background_pressed" />
<item android:state_focused="true"
android:drawable="#drawable/list_selector_background_focus" />
</selector>