Custom listactivity divider

Custom listactivity divider - android

I have a ListActivity that consists of many rows and I'm trying to customize the divider in between rows, so I can give the divider: a corners radius, change its color and apply a border, and so on.
I tried to refer it to a drawable shape layout but it doesn't work; it force closes.
listactivity code :
public class Rows extends ListActivity {
String classes[] = { "row1", "row2", "row3", "row4", "row5"};
#Override
protected void onCreate(Bundle savedInstanceState) {
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
ListView lv = getListView();
lv.setCacheColorHint(0);
lv.setSelector(android.R.color.transparent);
lv.setDivider(new ColorDrawable(this.getResources().getColor(R.drawable.divider)));
lv.setPadding(20, 0, 20, 0);
lv.setVerticalScrollBarEnabled(false);
lv.setBackgroundResource(R.drawable.list_background);
setListAdapter(new MyArrayAdapter(this, classes));
}
divider.xml code :
<?xml version="1.0" encoding="utf-8" ?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<stroke android:width="5dp" android:height="5dp" android:color="#B22222" />
<solid android:color="#FFFFFF" />
<padding android:left="10dp" android:right="10dp" />
<corners android:radius="10dp" android:bottomRightRadius="5dp"
android:bottomLeftRadius="5dp" android:topLeftRadius="10dp"
android:topRightRadius="10dp" />
</shape>
What am I doing wrong?

You should not use ColorDrawable in first place. And if your list params are non-conditional why not setting it all in XML directly:
android:divider="#drawable/divider"

Related

Change the seek bar color on intervals in Android

I want to change the seek bar color in android when the progress changes. In the following picture, blue color from 1-2, green from 2-3 and so on. Is it possible?
So far, my code is;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SeekBar seekBar = (SeekBar)findViewById(R.id.seekbar);
seekBar.setProgress(0);
seekBar.incrementProgressBy(10);
seekBar.setMax(200);
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
progress = progress / 10;
progress = progress * 10;
int stepSize = 25;
progress = (progress/stepSize)*stepSize;
seekBar.setProgress(progress);
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
}

progress.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"
android:drawable="#drawable/background_fill" />
<item android:id="#android:id/progress">
<clip android:drawable="#drawable/progress_fill" />
</item>
</layer-list>
background_fill.xml
----------
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:startColor="#FF555555"
android:centerColor="#FF555555"
android:endColor="#FF555555"
android:angle="90" />
<corners android:radius="5px" />
<stroke
android:width="2dp"
android:color="#50999999" />
<stroke
android:width="1dp"
android:color="#70555555" />
</shape>
----------
progress_fill.xml
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:startColor="#FF470000"
android:centerColor="#FFB80000"
android:endColor="#FFFF4400"
android:angle="180" />
<corners android:radius="5px" />
<stroke
android:width="2dp"
android:color="#50999999" />
<stroke
android:width="1dp"
android:color="#70555555" />
</shape>
----------
In xml where You write seekabr code add this
android:thumb="#drawable/thumb"
I hope this code is help to solve Your Problem.
Do You have idea How can you add These Files in Your Project

Android: Add divider between items in RecyclerView

I am using RecyclerView with rounded corner, to make it rounded corner I used below XML:
view_rounded.xml:-
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#008f8471"/>
<stroke android:width="2dp" android:color="#ffffff" />
<corners android:radius="10dp"/>
</shape>
fragment_main.xml:-
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/view_rounded"/>
adapter_main.xml:-
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/textTitle"
style="#style/AppTheme.ListTextView"
/>
</LinearLayout>
style.xml:-
<style name="AppTheme.ListTextView" parent="android:Widget.Material.TextView">
<item name="android:gravity">left</item>
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:textAllCaps">false</item>
<item name="android:padding">10dp</item>
<item name="android:textAppearance">#android:style/TextAppearance.DeviceDefault.Medium</item>
<item name="android:textColor">#color/tabsScrollColor</item>
<item name="android:textStyle">bold</item>
</style>
Getting (without item separator):
Required (with item separator):

you should try add Divider
mListview.addItemDecoration(new DividerItemDecoration(this.getActivity(), LinearLayout.VERTICAL));

I have done this way:
onCreateView() of Fragment:
RecyclerView recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerView);
recyclerView.addItemDecoration(new SimpleDividerItemDecoration(getActivity()));
SimpleDividerItemDecoration.java:
public class SimpleDividerItemDecoration extends RecyclerView.ItemDecoration {
private Drawable mDivider;
public SimpleDividerItemDecoration(Context context) {
mDivider = context.getResources().getDrawable(R.drawable.recycler_horizontal_divider);
}
#Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
int left = parent.getPaddingLeft();
int right = parent.getWidth() - parent.getPaddingRight();
int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
View child = parent.getChildAt(i);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
int top = child.getBottom() + params.bottomMargin;
int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
}
recycler_horizontal_divider.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<size
android:width="1dp"
android:height="1dp" />
<solid android:color="#2EC590" />
</shape>
Hope this will help you.

RecyclerView works different from ListViews. You need to add ItemDecorators for the recycler view. As the docs says,
An ItemDecoration allows the application to add a special drawing and layout offset to specific item views from the adapter's data set. This can be useful for drawing dividers between items, highlights, visual grouping boundaries and more.
Take a look into this link : https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ItemDecoration.html

Well what I did to achieve this is, I first created layout for my adapter row as
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<View
android:id="#+id/lineView"
android:layout_width="match_parent"
android:layout_height="2px"
android:background="#android:color/black"/>
<TextView
android:id="#+id/textTitle"
style="#style/AppTheme.ListTextView"
/>
</LinearLayout>
Then in my adapter I checked for first row and changed its viewLine Visibility to invisible
#Override
public void onBindViewHolder(ChildInfoViewHolder holder, final int position) {
if(position == 0){
holder.viewLine.setVisibility(View.INVISIBLE);
}
//...
}
public static class MyViewHolder extends RecyclerView.ViewHolder{
protected View viewLine;
public ChildInfoViewHolder(View view) {
super(view);
viewLine = view.findViewById(R.id.viewLine);
//...
}
}

To add dividers to your recyclerview you need to use decorator - https://gist.github.com/alexfu/0f464fc3742f134ccd1e after you add that to your project add a line
recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL_LIST));

This line of code worked for me:
recyclerView.addItemDecoration(new DividerItemDecoration(context, DividerItemDecoration.HORIZONTAL));
For vertical line, pass second argument as DividerItemDecoration.VERTICAL.

Set the selector at the background of the list item in your layout if you are using custom adapter

Try this one:
A very nice solution by Michel-F. Portzert
public class ClippedListView extends ListView {
public ClippedListView(Context context) {
super(context);
}
public ClippedListView(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
protected void dispatchDraw(Canvas canvas) {
float radius = 10.0f;
Path clipPath = new Path();
RectF rect = new RectF(0, 0, this.getWidth(), this.getHeight());
clipPath.addRoundRect(rect, radius, radius, Path.Direction.CW);
canvas.clipPath(clipPath);
super.dispatchDraw(canvas);
}
}

Try This From
Reference
Android: ListView with rounded corners
First off, we need the drawables for the backgrounds of the Lists entries:
For the entries in the middle of the list, we don't need rounded corners, so create a xml in your drawable folder "list_entry_middle.xml" with following content:
<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<stroke android:width="1px" android:color="#ffbbbbbb" />
</shape>
</item>
<item android:bottom="1dp" android:left="1dp" android:right="1dp">
<shape >
<solid android:color="#ffffffff" />
</shape>
</item>
</layer-list>
For the rounded corners, create another xml, "rounded_corner_top.xml":
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<stroke android:width="1dp" android:color="#ffbbbbbb" />
<corners android:topLeftRadius="20dp"
android:topRightRadius="20dp"
/>
</shape>
</item>
<item android:top="1dp" android:left="1dp" android:right="1dp" android:bottom="1dp">
<shape >
<solid android:color="#ffffffff" />
<corners android:topLeftRadius="20dp"
android:topRightRadius="20dp"
/>
</shape>
</item>
</layer-list>
Implementing the bottom part is quite the same, just with bottomLeftRadius and bottomRightRadius. (maybe also create one with all corners rounded, if the list only has one entry)
For better usability, also provide drawables with other colors for the different states, that the list item can have and reference them in another xml in the drawable folder ("selector_rounded_corner_top.xml") as followed:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/rounded_corner_top_click"
android:state_pressed="true" />
<item android:drawable="#drawable/rounded_corner_top_click"
android:state_focused="true" />
<item android:drawable="#drawable/rounded_corner_top" />
</selector>
Now do the same for the other backgrounds of the list.
All that is left now, is to assign the right backgrounds in our ListAdapter like following:
#Override
public View getView(int position, View convertView, ViewGroup parent) {
//...
//skipping the view reuse stuff
if (position == 0 && entry_list.size() == 1) {
view.setBackgroundResource(R.drawable.selector_rounded_corner);
} else if (position == 0) {
view.setBackgroundResource(R.drawable.selector_rounded_corner_top);
} else if (position == entry_list.size() - 1) {
view.setBackgroundResource(R.drawable.selector_rounded_corner_bottom);
} else {
view.setBackgroundResource(R.drawable.selector_middle);
}
//...
//skipping the filling of the view
}

Modify your ListView like below.Add the list_bg as the background of your ListView Also specify some padding for the top and the bottom of the listView otherwise the 1st and the last item in the list will overlap with the rounded corners showing rectangular corners.
<ListView
android:id="#+id/listView"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:background="#drawable/list_bg"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:fastScrollEnabled="true"
android:choiceMode="singleChoice" />

Use this drawable xml for curve shape listview and set background to your list view or any layout:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="6dp" />
<padding android:bottom="3dp" android:left="3dp" android:right="3dp" android:top="3dp" />
</shape>

Try this
custom_rounded_list.xml :
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#ff2521"
android:endColor="#2f5511"
android:angle="270"/>
<padding
android:bottom="5dp"
android:left="5dp"
android:right="5dp"
android:top="5dp" />
<corners
android:bottomRightRadius="7dp"
android:bottomLeftRadius="7dp"
android:topLeftRadius="7dp"
android:topRightRadius="7dp" />
</shape>
Your listview:
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/mylst"
android:background="#drawable/custom_rounded_list" />

you are setting list_selector for both textview and listview background. Use list_selector only for listview and if you want hover effect on textview too, then create another list_selector_textview which haven't include the <corners android:radius="10dp" property.

The problem is because you are setting the background with corners not only to the list view, but also to the item. You should make separate backgrounds for item (with selector) and one for list view with corners.
list_bg.xml
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#008f8471"/>
<stroke android:width="1dip" android:color="#ffffff" />
<corners android:radius="10dp"/>
<padding android:left="0dip" android:top="0dip" android:right="0dip" android:bottom="0dip" />
</shape>
Now you can setup this drawable as the background of your list view.
<ListView
android:id="#+id/listView"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:background="#drawable/list_bg.xml"
android:fastScrollEnabled="true"
android:choiceMode="singleChoice" />
And for list view item you can use selector to have hover functionality:
list_item_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/list_item_selected" android:state_pressed="true"/>
<item android:drawable="#drawable/list_item_selected" android:state_pressed="false" android:state_selected="true"/>
<item android:drawable="#android:color/transparent"/>
Where list_item_selected is :
list_item_selected.xml
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#4d8f8471"/>
<stroke android:width="1dip" android:color="#ffffff" />
</shape>
And after that you can setup this selector to the item in your xml:
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/list_item_selector" />
So your list view will have always same background with corners, and the background of items of list view, will be without corners and will be changed in pressed or selected state.

Just One Line...
recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), null));
That's all

Try this
recyclerView.apply {
....
addItemDecoration(DividerItemDecoration(context, DividerItemDecoration.VERTICAL))
}

How do i change text color when button was pressed once (Android)

what i basically wanna do is this:
When i click on the button i want its Text color to appear in a different color.
What i tried is this:
<selector
xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_pressed="true"
android:color="#color/red" />
<item
android:state_pressed="false"
android:color="#000" />
</selector>
and then i did use this selector as drawable on the button android:textColor
but this doesn solve it since it only changes its color while i press the button.
I want it like this:
Default: black
on click: blue
on click again: black
any ideas how to do that? :S
this is my shape for the button (if it matters):
<?xml version="1.0" encoding="utf-8"?>
<inset xmlns:android="http://schemas.android.com/apk/res/android"
android:insetBottom="-1dp"
android:insetLeft="-1dp"
android:insetRight="-1dp">
<selector>
<item android:state_pressed="false">
<shape android:shape="rectangle" >
<corners
android:radius="0dp"
/>
<solid
android:color="#color/background_grey"
/>
<padding
android:left="0dp"
android:top="0dp"
android:right="0dp"
android:bottom="0dp"
/>
<size
android:width="100dp"
android:height="30dp"
/>
<stroke
android:width="1dp"
android:color="#ffb4b4b4"
/>
</shape>
</item>
<item android:state_pressed="true">
<shape android:shape="rectangle" >
<corners
android:radius="0dp"
/>
<solid
android:color="#color/pq_blue"
/>
<padding
android:left="0dp"
android:top="0dp"
android:right="0dp"
android:bottom="0dp"
/>
<size
android:width="100dp"
android:height="30dp"
/>
<stroke
android:width="1dp"
android:color="#ffb4b4b4"
/>
</shape>
</item>
</selector>
</inset>
thx in advance
EDIT
so i tried to do it programatically and tied the folowing just to see if it changes color´s ..but yea..it doesn´t (it seems like my onCLick event doesnt work):
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.listview_item, container, false);
final Button likeButton = (Button)rootView.findViewById(R.id.btLike);
likeButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String test = "tester";
if(BUTTON_STATE==BUTTON_STATE_ONCE){
likeButton.setTextColor(getResources().getColor(R.color.pq_blue));
BUTTON_STATE = BUTTON_STATE_TWICE;
}else{
likeButton.setTextColor(getResources().getColor(R.color.red));
BUTTON_STATE = BUTTON_STATE_ONCE;
}
}
});
return rootView;
}
}
NOTE: i do all tht stuff in onCreateView since im in a Fragment of my ActionBarActivity(with tabs) if im doing it in the onCreate i get a null pointer exception at findViewById ( since it searches for the ID in my mainActivity, if im right?)
so yea..any ideas?

Your textselector.xml -
<selector
xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_pressed="true"
android:color="#color/red" /> <!--selected text colour-->
<item
android:state_focused="true"
android:color="#color/red" />
<item
android:color="#color/blue" /> <!--unselected text colour-->
</selector>
Your button in layout.xml -
<Button
android:id="#+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Exit"
android:textColor="#drawable/textselector" <!-- SET textselector HERE -->
android:background="#drawable/button_color"/>

You can use this code to do it programmatically:
myButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
ColorStateList myList=myButton.getTextColors();
int myColor=myList.getDefaultColor();
switch(myColor)
{
case Color.BLACK:
myButton.setTextColor(Color.BLUE);
break;
case Color.BLUE:
myButton.setTextColor(Color.BLACK);
break;
}
}
});

If You want to have a behaviour like:
First Click: Button text black
Second Click: Button text blue
third Click: button text black again
I don´t think it´s possible with the selector, also not with state focused. Because if any other view will be clicked, the button is not focused anymore and will loose the textcolor, goes back to default. You have to do it in a programmatically way:
First, set the default textColor to what You want: black inside Your xml. So than You have the color on no press. make a globa variabel to save the state:
private int BUTTON_STATE = 0;
private final int BUTTON_STATE_ONCE = 0;
private final int BUTTON_STATE_TWICE = 1;
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
if(BUTTON_STATE==BUTTON_STATE_ONCE){
button.setTextColor(Color.BLUE);
BUTTON_STATE = BUTTON_STATE_TWICE;
}else if(BUTTON_STATE==BUTTON_STATE_TWICE){
button.setTextColor(Color.BLACK);
BUTTON_STATE = BUTTON_STATE_ONCE;
}
}
});
That´s just a possible solution, there are many ways..
EDIT
for Your code:
Create that global variables like i did in my example above, and use them in the if/else statement:
likeButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(BUTTON_STATE==BUTTON_STATE_ONCE){
likeButton.setTextColor(getResources().getColor(R.color.pqBlue));
BUTTON_STATE = BUTTON_STATE_TWICE;
}else if(BUTTON_STATE==BUTTON_STATE_TWICE){
likeButton.setTextColor(getResources().getColor(R.color.pqBlack));
BUTTON_STATE = BUTTON_STATE_ONCE;
}
}
});

Try adding text_effect.xml drawable
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:color="#color/white" /> <!-- pressed -->
<item android:color="#color/black" /> <!-- default -->
</selector>
add this line in button control
android:textColor="#drawable/text_effect"
It will work. Enjoy:)

If you do not mandatorily need a simple Button, you could use a ToggleButton that is made for binary-state handling... With a ToggleButton your selector would look like this :
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:color="#color/red" />
<!-- Default State -->
<item android:color="#000" />
</selector>

It seems like you wanna implement something like toggle button.
Instead of button u can use toggle button.
Though if you wanna use button only then u need to do some changes in your java code as well as xml code also
Create a file def_btn.xml it will look like this..
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<corners
android:radius="0dp"
/>
<solid
android:color="#color/background_grey"
/>
<padding
android:left="0dp"
android:top="0dp"
android:right="0dp"
android:bottom="0dp"
/>
<size
android:width="100dp"
android:height="30dp"
/>
<stroke
android:width="1dp"
android:color="#ffb4b4b4"
/>
</shape>
Create another file press_btn.xml it will look like this..
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<corners
android:radius="0dp"
/>
<solid
android:color="#color/pq_blue"
/>
<padding
android:left="0dp"
android:top="0dp"
android:right="0dp"
android:bottom="0dp"
/>
<size
android:width="100dp"
android:height="30dp"
/>
<stroke
android:width="1dp"
android:color="#ffb4b4b4"
/>
</shape>
Inside your activity declare a private boolean variable(say isPressed) by default isPressed is false. & for default button background will be def_btn.xml
Now write following in button's onClick event.
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
isPressed = !isPressed;
if(isPressed){
btn.setBackgroundResource(R.drawable.def_btn);
}else{
btn.setBackgroundResource(R.drawable.press_btn);
}
}
});
That's it..

Circle button with shadow

I make a circle button with states and I want to add shadow to the button like the default buttons how I can do this? Here is my code:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<shape android:shape="oval">
<solid android:color="#color/yellow_pressed" />
<stroke android:width="1dp" android:color="#fff" />
</shape>
</item>
<item android:state_focused="true">
<shape android:shape="oval">
<solid android:color="#color/yellow_pressed" />
<stroke android:width="1dp" android:color="#fff" />
</shape>
</item>
<item>
<shape android:shape="oval">
<solid android:color="#color/yellow_default" />
<stroke android:width="1dp" android:color="#fff" />
</shape>
</item>
</selector>

Starting from Lollipop, you can use:
public static void setOvalElevationToView(final View view) {
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP)
view.setOutlineProvider(new ViewOutlineProvider() {
#TargetApi(VERSION_CODES.LOLLIPOP)
#Override
public void getOutline(View view, Outline outline) {
final int size = view.getWidth();
outline.setOval(0, 0, size, size);
}
});
}
You might also need to disable clipping on the parent of the view, so that the shadows won't be clipped

How to change colour in TabHost

I am doing application with TabHost formate, The tab is displaying with Default color, is there any possibility to change default color to our own color.? I got some ideas from google,
tabHost.setOnTabChangedListener(new OnTabChangeListener(){
#Override
public void onTabChanged(String tabId) {
// TODO Auto-generated method stub
for(int i=0;i<tabHost.getTabWidget().getChildCount();i++)
{
tabHost.getTabWidget().getChildAt(i).setBackgroundColor(R.color.transparent); //unselected
}
tabHost.getTabWidget().getChildAt(tabHost.getCurrentTab()).setBackgroundColor(Color.parseColor("#000011")); // selected
}
whenever i doing this i am getting force close error. if anyone having idea of changing background color, pls guide me.

You need first to change the default appearence
for(int i=0;i<tabHost.getTabWidget().getChildCount();i++)
{
if (i == 0) tabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.parseColor("#FFFFFF"));
else tabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.parseColor("#7392B5"));
}
before dealing with the onTabChanged event
tabHost.setOnTabChangedListener(new OnTabChangeListener(){
#Override
public void onTabChanged(String tabId) {
// TODO Auto-generated method stub
for(int i=0;i<tabHost.getTabWidget().getChildCount();i++)
{
tabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.parsecolor("#7392B5")); //unselected
}
tabHost.getTabWidget().getChildAt(tabHost.getCurrentTab()).setBackgroundColor(Color.parseColor("#FFFFFF")); // selected
}
});

Create tabs with the view:
final TabHost tabs = getTabHost();
tabs.setup();
final TabHost.TabSpec spec = tabs.newTabSpec("tag");
spec.setIndicator(View.inflate(this, R.layout.tab_view, null));
tabs.addTab(spec);
Define your selector
<?xml version="1.0" encoding="utf-8"?>
<item android:state_pressed="true" >
<shape>
<gradient
android:endColor="#bbb"
android:centerColor="#999"
android:startColor="#ddd"
android:angle="270" />
<stroke
android:width="3dp" />
<corners
android:topLeftRadius="10dp"
android:bottomRightRadius="0.1dp"
android:bottomLeftRadius="0.1dp"
android:topRightRadius="10dp" />
<padding
android:left="10dp"
android:top="10dp"
android:right="10dp"
android:bottom="10dp" />
</shape>
</item>
<item android:state_selected="true" >
<shape>
<gradient
android:endColor="#888"
android:centerColor="#777"
android:startColor="#999"
android:angle="270" />
<stroke
android:width="3dp" />
<corners
android:topLeftRadius="10dp"
android:bottomRightRadius="0.1dp"
android:bottomLeftRadius="0.1dp"
android:topRightRadius="10dp" />
<padding
android:left="10dp"
android:top="10dp"
android:right="10dp"
android:bottom="10dp" />
</shape>
</item>
<item>
<shape>
<gradient
android:startColor="#eee"
android:centerColor="#aaa"
android:endColor="#ccc"
android:angle="270" />
<stroke
android:width="3dp" />
<corners
android:topLeftRadius="10dp"
android:bottomRightRadius="0.1dp"
android:bottomLeftRadius="0.1dp"
android:topRightRadius="10dp" />
<padding
android:left="10dp"
android:top="10dp"
android:right="10dp"
android:bottom="10dp" />
</shape>
</item>
Add your selector as a background drawable to your tab view
<View
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="#dimen/tab_width"
android:layout_height="fill_parent"
android:background="#xml/tabs_background"/>
"#dimen/tab_width" is your tabs width in dp, pixels or smthn.

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Custom listactivity divider - android

You should not use ColorDrawable in first place. And if your list params are non-conditional why not setting it all in XML directly: android:divider="#drawable/divider"

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