I have this array.xml
<resources>
<string-array name="Abarth">
<item name="id">1</item><item name="title">500</item>
<item name="id">2</item><item name="title">Grande Punto</item>
<item name="id">3</item><item name="title">Punto Evo</item>
<item name="id">4</item><item name="title">500c</item>
<item name="id">5</item><item name="title">695</item>
<item name="id">6</item><item name="title">Punto</item>
</string-array>
<string-array name="Alfa_Romeo">
<item name="id">1</item><item name="title">155</item>
<item name="id">2</item><item name="title">156</item>
<item name="id">3</item><item name="title">159</item>
<item name="id">4</item><item name="title">164</item>
<item name="id">5</item><item name="title">145</item>
<item name="id">6</item><item name="title">147</item>
<item name="id">7</item><item name="title">146</item>
<item name="id">8</item><item name="title">Gtv</item>
<item name="id">9</item><item name="title">Spider</item>
<item name="id">10</item><item name="title">166</item>
<item name="id">11</item><item name="title">Gt</item>
<item name="id">12</item><item name="title">Crosswagon</item>
<item name="id">13</item><item name="title">Brera</item>
<item name="id">14</item><item name="title">90</item>
<item name="id">15</item><item name="title">75</item>
<item name="id">16</item><item name="title">33</item>
<item name="id">17</item><item name="title">Giulietta</item>
<item name="id">18</item><item name="title">Sprint</item>
<item name="id">19</item><item name="title">Mito</item>
</string-array>
<array name="marcas">
<item>#array/Abarth</item>
<item>#array/Alfa_Romeo</item>
</array>
</resources>
I want to get the content of the array marcas and the name of the subarrays, like "Abarth" or "Alfa_Romeo".
How can I do this? In other post I have read the next code, but it is for obtain the entire array, not only a part of the array.
Resources res = getResources();
TypedArray ta = res.obtainTypedArray(R.array.marcas);
int n = ta.length();
String[][] car = new String[n][];
for (int i = 0; i < n; ++i) {
int id = ta.getResourceId(i, 0);
if (id > 0) {
car[i] = res.getStringArray(id);
} else {
// Error en el XML
}
}
Thank you.
I want to get the content of the array marcas and the name of the
subarrays, like "Abarth" or "Alfa_Romeo".
I don't know if i correctly understood your question but to obtain name of arrays you can use this:
TypedArray parent = getResources().obtainTypedArray(R.array.marcas);
List<String> childs = new ArrayList<String>();
for (int i = 0; i < parent.length(); i++) {
int id = parent.getResourceId(i, 0);
if (id > 0) {
childs.add(getResources().getResourceEntryName(id));
}
}
parent.recycle();
Output:
Abarth
Alfa_Romeo
You have done everything well, To get the TypedArray resource name you need to use getResourceEntryName. Add the following code to get the resourceEntryName, to get what you looking for.
getResources().getResourceEntryName(id);
This will give you the output "Abarth" and "Alfa_Romeo".
Related
I have a ChipGroup with 5 chips in it. And I have a view pager with 5 pages in it. For the chip I select, the corresponding page(fragment) should be loaded. How to link the ViewPager and the ChipGroup in android?
set app:singleSelection="true"to your Chip Group XML refer to this
and set ViewPager like this
private void setViewPager() {
mPagerAdapter = new PagerAdapter(getSupportFragmentManager());
if (mViewPagerGetStarted != null) {
mViewPagerGetStarted.setAdapter(mPagerAdapter);
mViewPagerGetStarted.addOnPageChangeListener(this);
mViewPagerGetStarted.setOffscreenPageLimit(4);
mTabLayoutGetStarted.setupWithViewPager(mViewPagerGetStarted);
}
ArrayList<String> categoryList = new ArrayList<>();
int numberOfFrag = mPagerAdapter.getCount();
for (int i = 0; i < numberOfFrag; i++) {
categoryList.add(mPagerAdapter.getPageTitle(i).toString());
}
addChipsToChipGroup(categoryList);
}
Then add chips dynamically to your chip group using addChipsToChipGroup(categoryList);
private void addChipsToChipGroup(List<String> items) {
if (items.size() >= 1) {
for (int i = 0; i < items.size(); i++) {
Chip chip = new Chip(mContext);
chip.setId(i);
ChipDrawable chipDrawable = ChipDrawable.createFromAttributes(this,
null,
0,
R.style.ChipTextStyle);
chip.setCloseIconTint(Utils.ColorStateListFromIntColor(mColorPrimary));
chip.setText(items.get(i));
chip.setTextColor(mColorPrimary);
chip.setChipDrawable(chipDrawable);
chip.setChipBackgroundColor(Utils.ColorStateListFromIntColor(mWhiteColor));
chip.setChipStrokeColor(Utils.ColorStateListFromIntColor(mColorPrimary));
chip.setChipStrokeWidth(2f);
mChipGroup.addView(chip);
}
}
}
And finally set on checked changed listener on your chipgroup
mChipGroup.setOnCheckedChangeListener((group, checkedId) ->
mViewPagerGetStarted.setCurrentItem(checkedId,true));
style.xml :
<style name="ChipTextStyle" parent="Widget.MaterialComponents.Chip.Choice">
<item name="android:textSize">13sp</item>
<item name="android:textColor">#color/colorPrimary</item>
<item name="android:padding">5dp</item>
<item name="checkedIconEnabled">false</item>
<item name="checkedIcon">#null</item>
<item name="closeIconTint">#color/colorPrimary</item>
</style>
I have the following items stored in an array-string in String.xml file
<string-array name="cr">
<item name="x"> 20</item>
<item name="y"> 40</item>
<item name="z"> 60</item>
<item name="k"> 80</item>
<item name="i"> 100</item>
<item name="l"> 120</item>
</string-array>
how can i get the value (eg 80) using the item name in mainactivity.java file?
int index =Arrays.asList(getResources().getStringArray(R.array.cr)).indexOf(..); I tried this but it doesn't work
You can use two array(one for key, one for value) and then put them into Hashmap object.
Example:
String[] mobileArray = getResources().getStringArray(R.array.mobile);
String[] priceArray = getResources().getStringArray(R.array.price);
Map<String, String> map = new HashMap<>();
for (int i = 0; i < mobileArray.length; i++) {
map.put(mobileArray[i], priceArray[i]);
}
strings.xml
<string-array name="mobile">
<item>Samsung</item>
<item>Lenevo</item>
<item>Karbon</item>
<item>Moto</item>
<item>Xperia</item>
<item>Micromax</item>
<item>Lava</item>
<item>Xiomi</item>
</string-array>
<string-array name="price">
<item>10000</item>
<item>12000</item>
<item>10000</item>
<item>12000</item>
<item>10000</item>
<item>12000</item>
<item>10000</item>
<item>12000</item>
</string-array>
I think you need something like this
String[] yourArray = getResources().getStringArray(R.array. cr);
String yourString = yourArray[3];
hope this is what you need
It is part of code of a weather application.
I had written following code in strings.xml, but now I want to write in java file. I don't know how to write the following code in HashMap and obtain the value from it.
Following are the string-arrays in my XML.
<!-- Weather condtion 5,6 together with Dress -->
<!-- Weather condtion 11,12 together with Dress -->
<string-array name="eleven">
<item name="dress_6">dress_6</item>
<item name="dress_0">dress_0</item>
<item name="dress_1">dress_1</item>
</string-array>
<!-- Weather condtion 9 together with Dress -->
<string-array name="nine">
<item name="dress_6">dress_6</item>
<item name="dress_4">dress_4</item>
<item name="dress_14">dress_14</item>
</string-array>
<!-- Weather condtion 5,6 together with Dress -->
<string-array name="five">
<item name="dress_2">dress_2</item>
<item name="dress_8">dress_8</item>
<item name="dress_6">dress_6</item>
</string-array>
<!-- condtion 2 -->
<string-array name="two">
<item name="dress_11">dress_11</item>
<item name="dress_5">dress_5</item>
<item name="dress_0">dress_0</item>
</string-array>
<string-array name="twentyFive">
<item name="dress_0">dress_0</item>
<item name="dress_3">dress_3</item>
<item name="dress_8">dress_8</item>
</string-array>
<string-array name="twentySix">
<item name="dress_12">dress_12</item>
<item name="dress_13">dress_13</item>
<item name="dress_5">dress_5</item>
</string-array>
<string-array name="thirtySix">
<item name="dress_11">dress_11</item>
<item name="dress_9">dress_9</item>
<item name="dress_4">dress_4</item>
</string-array>
<string-array name="thirtySeven">
<item name="dress_12">dress_12</item>
<item name="dress_13">dress_13</item>
<item name="dress_3">dress_3</item>
</string-array>
I think you are looking for a way to populate the HashMap
You could use the following
Map<String, List<String>> map = new HashMap<>();
map.put("eleven", Arrays.asList("dress_6", "dress_0", "dress_1"));
if you need a more complex structure you could use something like
Map<String, Map<String, String>> map = new HashMap<>();
To retrieve from the map you could use something like
List<String> list = map.get("eleven");
This list will contain the elements that you added "dress_6", "dress_0", "dress_1"
You can access these elements in a for loop as
for(String item : list) {
System.out.println("Item: " + item);
}
You haven't specified your exact use case but I would recommend not hard coding the configuration. You could read from the existing string.xml file and populate the Map on startup or first access.
Lets try this:
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import java.util.AbstractMap;
import java.util.HashMap;
import java.util.Map;
public class Test {
public static void main(String[] args) {
Map<String,String> map = new HashMap<String,String>();
map.put("name","chris");
map.put("island","faranga");
XStream magicApi = new XStream();
magicApi.registerConverter(new MapEntryConverter());
magicApi.alias("root", Map.class);
String xml = magicApi.toXML(map);
System.out.println("Result of tweaked XStream toXml()");
System.out.println(xml);
Map<String, String> extractedMap = (Map<String, String>) magicApi.fromXML(xml);
assert extractedMap.get("name").equals("chris");
assert extractedMap.get("island").equals("faranga");
}
public static class MapEntryConverter implements Converter {
public boolean canConvert(Class clazz) {
return AbstractMap.class.isAssignableFrom(clazz);
}
public void marshal(Object value, HierarchicalStreamWriter writer, MarshallingContext context) {
AbstractMap map = (AbstractMap) value;
for (Object obj : map.entrySet()) {
Map.Entry entry = (Map.Entry) obj;
writer.startNode(entry.getKey().toString());
Object val = entry.getValue();
if ( null != val ) {
writer.setValue(val.toString());
}
writer.endNode();
}
}
public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
Map<String, String> map = new HashMap<String, String>();
while(reader.hasMoreChildren()) {
reader.moveDown();
String key = reader.getNodeName(); // nodeName aka element's name
String value = reader.getValue();
map.put(key, value);
reader.moveUp();
}
return map;
}
}
}
Check THIS out for more information.
For our current app, almost all of our resources are themed. For the most part this works, but I can't figure out how to parse themed resources out of a resource array.
The code we have for parsing color arrays looks something like this:
TypedArray ca = getResources().obtainTypedArray(id);
int[] colors = new int[ca.length()];
for (int i = 0; i < colors.length; i++)
{
colors[i] = ca.getColor(i, 0);
}
ca.recycle();
That works fine as long as the array looks something like this:
<array name="color_array_foo">
<item>#123456</item>
<item>#789ABC</item>
</array>
But if the array looks like this:
<array name="color_array_foo">
<item>?attr/color_nothing</item>
<item>?attr/color_1</item>
</array>
with the necessary stuff elsewhere in resources like:
<attr name="color_1" format="color"/>
...
<style name="Base" parent="#android:style/Theme.NoTitleBar">
<item name="color_1">#123456</item>
...
</style>
then it throws this exception:
java.lang.UnsupportedOperationException: Can't convert to color: type=0x2
at android.content.res.TypedArray.getColor(TypedArray.java:327)
I've looked around at the various methods of TypedArray, like peekValue() and getResourceId(), but I can't figure out anything that will let me dereference the themed attribute to the actual color value. How do I do that?
Edit: This smells like it's closer, but still isn't right:
TypedArray ca = getResources().obtainTypedArray(id);
int [] c = new int[ca.length()];
for (int i=0; i<c.length; i++)
{
if (ca.peekValue(i).type == TypedValue.TYPE_REFERENCE ||
ca.peekValue(i).type == TypedValue.TYPE_ATTRIBUTE)
{
// FIXME: Probably need to split the above if, and for
// TYPE_ATTRIBUTE, do some additional dereferencing?
c[i] = ca.getResources().getColor(ca.peekValue(i).data);
}
else
{
c[i] = ca.getColor(i, 0);
}
}
ca.recycle();
Use method public boolean resolveAttribute (int resid, TypedValue outValue, boolean resolveRefs)
TypedArray ca = getResources().obtainTypedArray(id);
int[] c = new int[ca.length()];
for (int i = 0; i < c.length; i++) {
if (ca.peekValue(i).type == TypedValue.TYPE_ATTRIBUTE) {
TypedValue typedValue = new TypedValue();
getTheme().resolveAttribute(ca.peekValue(i).data, typedValue, true);
c[i] = typedValue.data;
} else {
c[i] = ca.getColor(i, 0);
}
}
ca.recycle();
it works for
<resources>
<attr name="color_2" format="color"/>
<color name="color_2">#002</color>
<color name="color_3">#003</color>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="color_2">#color/color_2</item>
</style>
<array name="color_array_foo">
<item>#001</item>
<item>?attr/color_2</item>
<item>#color/color_3</item>
</array>
</resources>
I have an integer array in an xml file as follows
<integer-array name="myArray">
<item>#drawable/pic1</item>
<item>#drawable/pic2</item>
<item>#drawable/pic3</item>
<item>#drawable/pic4</item>
</integer-array>
In the code, I am trying to load this array
int[] picArray = getResources().getIntArray(R.array.myArray);
The expected result is
R.drawable.pic1, R.drawable.pic2,R.drawable.pic3
but instead it is coming with an array with all values as zero
Can anyone tell me what is wrong?
Found this solution:
TypedArray ar = context.getResources().obtainTypedArray(R.array.myArray);
int len = ar.length();
int[] picArray = new int[len];
for (int i = 0; i < len; i++)
picArray[i] = ar.getResourceId(i, 0);
ar.recycle();
// Do stuff with resolved reference array, resIds[]...
for (int i = 0; i < len; i++)
Log.v (TAG, "Res Id " + i + " is " + Integer.toHexString(picArray[i]));
And resources xml file could be:
<resources>
<integer-array name="myArray">
<item>#drawable/pic1</item>
<item>#drawable/pic2</item>
<item>#drawable/pic3</item>
<item>#drawable/pic4</item>
</integer-array>
</resources>
It looks like you might be talking about typed arrays?
if so a typed array should look like this:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<array name="icons">
<item>#drawable/home</item>
<item>#drawable/settings</item>
<item>#drawable/logout</item>
</array>
<array name="colors">
<item>#FFFF0000</item>
<item>#FF00FF00</item>
<item>#FF0000FF</item>
</array>
</resources>
Can you show us your actual xml file so we can help you?
EDIT: Yeah those are not integers. make it a resource array if you want to store resources.
You need to get an array with id's of your images.
Probably this article helps you. And so the code you probably need:
int[] picArray = new int[4];
for (int i = 1; i <=4; i++)
{
try
{
Class res = R.drawable.class;
Field field = res.getField("pic"+i);
picArray[i-1] = field.getInt(null);
}
catch (Exception e)
{
Log.e("MyTag", "Failure to get drawable id.", e);
}
}
Just make it a normal resource array. You could do it like this:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<array name="icons">
<item>#drawable/home</item>
<item>#drawable/settings</item>
<item>#drawable/logout</item>
</array>
</resources>
Then don't make a int[] just make a TypedArray like this:
TypedArray icons = getResources().obtainTypedArray(R.array.icons);
and get it with:
imageview.setImageDrawable(mIcons.getDrawable(position));