I am a newbie in Java-Android developing.
I want to add this drawable on a view like button's background
but it doesn't draw anything.
This is my background drawable_shining.xml:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape>
<gradient
android:endColor="#000"
android:centerColor="#111"
android:startColor="#000"
android:angle="45"
android:type="linear" />
</shape>
</item>
<item>
<shape>
<gradient
android:endColor="#000"
android:gradientRadius="100"
android:startColor="#555"
android:type="radial" />
</shape>
</item>
</layer-list>
[here is code and layout][1]
according to documentation layer-list is a drawable object that manages an array of other drawables. Each drawable in the list is drawn in the order of the list—the last drawable in the list is drawn on top.
Each drawable is represented by an element inside a single element.
in your code, write each <shape> in <item> tag. Your final code will be look like this,
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape>
<gradient
android:endColor="#000"
android:gradientRadius="100"
android:startColor="#333"
android:type="radial" />
</shape>
</item>
<item>
<shape>
<gradient
android:endColor="#000"
android:gradientRadius="100"
android:startColor="#333"
android:type="radial" />
</shape>
</item>
You can use same format like below code :
Reference : angrytools
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<corners
android:radius="14dp"
/>
<gradient
android:angle="45"
android:centerX="35%"
android:centerColor="#47A891"
android:startColor="#E8E8E8"
android:endColor="#000000"
android:type="linear"
/>
<padding
android:left="0dp"
android:top="0dp"
android:right="0dp"
android:bottom="0dp"
/>
<size
android:width="270dp"
android:height="60dp"
/>
<stroke
android:width="3dp"
android:color="#878787"
/>
</shape>
Related
I was implementing a drawable file to add a background to my tabs but i want it to have corners . I've used a shape and corners tags all embedded into a selector tag but it has no effects to my background corners . May I please get your help ? here's the code i've implemented :
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/bleue_sky" android:state_selected="true">
<shape android:shape="rectangle">
<corners
android:bottomLeftRadius="15dp"
android:bottomRightRadius="15dp"
android:topLeftRadius="15dp"
android:topRightRadius="15dp"
/>
</shape>
</item>
<item android:drawable="#color/blackTransparent"/>
</selector>
Try This
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:background="#drawable/main_tab_bg"
android:paddingHorizontal="10dp"
android:visibility="visible"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:tabBackground="#drawable/tab_layout_background"
app:tabIndicator="#drawable/tab_layout_indicator"
app:tabIndicatorColor="#null"
app:tabIndicatorFullWidth="true"
app:tabIndicatorGravity="center"
app:tabMode="auto"
app:tabRippleColor="#null"
app:tabSelectedTextColor="#FFFFFF"
app:tabTextColor="#000000" />
res/drawable/main_tab_bg.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#DDDDDD"/>
</shape>
</item>
<item android:top="1dp" android:bottom="1dp">
<shape android:shape="rectangle">
<solid android:color="#FFFFFF"/>
</shape>
</item>
</layer-list>
res/drawable/tab_layout_background.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:top="9dp"
android:bottom="9dp">
<shape android:shape="rectangle">
<solid android:color="#color/transparent" />
<corners android:radius="15dp" />
<size android:height="30dp"/>
</shape>
</item>
</layer-list>
res/drawable/tab_layout_indicator.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:top="9dp"
android:bottom="9dp">
<shape android:shape="rectangle">
<corners android:radius="15dp" />
<solid android:color="#000000" />
<size android:height="30dp"/>
</shape>
</item>
</layer-list>
output like this
I have button and I set style from xml now on click of button I want to change style like
style="#style/ButtonNotSelected"
Place to
style="#style/ButtonSelected"
programmatically..
Please help..!!!
It will better if you use xml and a selector , to get your button change color when it is pressed, you could define an XML file called res/drawable/my_button.xml.
Set my_button.xml as background to your button.
<?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/button_pressed" />
<item
android:state_pressed="false"
android:drawable="#drawable/button_normal" />
</selector>
#drawable/button_pressed something like this :
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<shape>
<solid android:color="#449def"/>
<stroke android:width="1dp" android:color="#2f6699"/>
<corners android:radius="3dp"/>
<padding android:left="10dp" android:top="10dp" android:right="10dp"
android:bottom="10dp"/>
</shape>
</item>
</selector>
#drawable/button_normal something like this :
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient android:startColor="#449def" android:endColor="#2f6699" android:angle="270"/>
<stroke android:width="1dp" android:color="#2f6699"/>
<corners android:radius="4dp"/>
<padding android:left="10dp" android:top="10dp" android:right="10dp"
android:bottom="10dp"/>
</shape>
</item>
</selector>
try like this:
ContextThemeWrapper newContext = new ContextThemeWrapper(baseContext, R.style.MyStyle);
Button button = new Button(newContext);
OR
btn.setBackgroundResource(R.drawable.back_button_answer);
\res\drawable\back_button_answer.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<corners android:radius="10dip" />
<!-- background -->
<gradient
android:startColor="#D6D7D6"
android:centerColor="#E2E2E2"
android:centerY="0.75"
android:endColor="#D6D7D6"
android:angle="270"
/>
<stroke android:width="2dip" android:color="#fff"/>
</shape>
Here, for the mixed button I have used
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<bitmap
android:src="#drawable/stripes"
android:tileMode="repeat"
android:dither="true"
android:antialias="true" />
</item>
</layer-list>
And for other buttons I have used
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:startColor="#android:color/transparent"
android:endColor="#android:color/transparent"
android:angle="270" />
<corners android:radius="3dp" />
<stroke android:width="5px" android:color="#000000" />
</shape>
Now I want to add that black border around the mixed button how to do?
Use shape in layer list under item in xml file like below
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<bitmap
android:src="#drawable/stripes"
android:tileMode="repeat"
android:dither="true"
android:antialias="true" />
</item>
<item>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:startColor="#android:color/transparent"
android:endColor="#android:color/transparent"
android:angle="270" />
<corners android:radius="3dp" />
<stroke android:width="5px" android:color="#000000" />
</shape>
</item>
</layer-list>
It'll help you..
reference How overlay bitmap and shape in layer-list properly
You are super close, you just need to add the Shape (for your border) to the <layer-list>
Something like this:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<bitmap
android:src="#drawable/stripes"
android:tileMode="repeat"
android:dither="true"
android:antialias="true" />
</item>
<item>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:startColor="#android:color/transparent"
android:endColor="#android:color/transparent"
android:angle="270" />
<corners android:radius="3dp" />
<stroke android:width="5px" android:color="#000000" />
</shape>
</item>
</layer-list>
I need to make a custom rectangle that should use hex colors from #bff54a up to #88c010.
Actually I have this xml but I can only use one of those colors. How can I make the gradient possible? I already searched and I didn't found anything like this.
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<stroke
android:width="1dp"
android:color="#color/gray_light" />
<solid android:color="#88c010" />
<corners
android:bottomLeftRadius="8dp"
android:bottomRightRadius="8dp"
android:topLeftRadius="8dp"
android:topRightRadius="8dp" />
</shape>
Thanks to all!
Use Gradient as the color of the Drawable :
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<stroke
android:width="1dp"
android:color="#color/gray_light" />
<gradient
android:type="linear"
android:centerX="0"
android:centerY="1"
android:startColor="#bff54a"
android:endColor="#88c010" />
<corners
android:bottomLeftRadius="8dp"
android:bottomRightRadius="8dp"
android:topLeftRadius="8dp"
android:topRightRadius="8dp" />
</shape>
See Drawable Resources
You can create file shape and implement this code
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangule"> <!-- oval -->
<gradient
android:startColor="#388E3C"
android:endColor="#448AFF"
android:centerColor="#color/colorPrimary"
/>
</shape>
</item>
</selector>
Result
I have a customized ProgressBar which gets its drawable from the drawable folder.
The XML:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="#android:id/background">
<shape>
<corners android:radius="5dip" />
<gradient
android:startColor="#ff9d9e9d"
android:centerColor="#ff5a5d5a"
android:centerY="0.75"
android:endColor="#ff747674"
android:angle="270"
/>
</shape>
</item>
<item android:id="#android:id/secondaryProgress">
<clip>
<shape>
<corners android:radius="5dip" />
<gradient
android:startColor="#80ffd300"
android:centerColor="#80ffb600"
android:centerY="0.75"
android:endColor="#a0ffcb00"
android:angle="270"
/>
</shape>
</clip>
</item>
<item
android:id="#android:id/progress"
>
<clip>
<shape>
<corners
android:radius="5dip" />
<gradient
android:startColor="#33FF33"
android:endColor="#008000"
android:angle="270" />
</shape>
</clip>
</item>
</layer-list>
I want to be able to change the startColor of progress (which is "#33FF33" in the XML). I need an alternative way to set the color.
lg, couka
After this line ,your ProgressBar will be in RED color: you can change it as you want
progressBar.getProgressDrawable().setColorFilter(Color.RED, Mode.SRC_IN);
Or try this solution :
https://stackoverflow.com/a/11288434/2337837