I make a filter with java for chose a specific continent and when you click refresh you get a random filtered data this is my code with java
public class Util {
public static CountriesData getCountrie(){
List<Country> mList = new ArrayList<>();
mList.add(new Country(R.drawable.ae, "Emarat","asia"));
mList.add(new Country(R.drawable.tm, "Turkmenistan","asia"));
mList.add(new Country(R.drawable.bj, "Benin","Afriqua"));
mList.add(new Country(R.drawable.va, "Seal of Virginia ","N.America"));
mList.add(new Country(R.drawable.us, "USA","N.America"));
mList.add(new Country(R.drawable.at, "Austria","Europe"));
mList.add(new Country(R.drawable.pt, "Portugal","Europe"));
mList.add(new Country(R.drawable.ki, "Kiribati ","S.America"));
mList.add(new Country(R.drawable.cu, "Cuba","S.America"));
mList.add(new Country(R.drawable.ht, "Haiti","S.America"));
return new CountriesData(mList);
}
}
my question is how make a code for my button to get data when i click
mButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showRandomCountry();
}
});
}
public void showRandomCountry(){
schuffleAsia();
// int r = new Random().nextInt(mList.size());
mImageView.setImageResource(mList.get().getMcountry());
// mTextView.setText(mList.get(m).getmFact());
`
Place this function
in your Util
class:-
public Country getRandomCountry() {
return mList.get(new Random().nextInt(list.size()));//To get random item from the array.
}
And For Getting Shuffled Array Use This function
:-
public ArrayList<Country> getShuffledList(int sizeOfArray) {
Util util = new Util();
List<Country> shuffledList = new ArrayList<>();
for (int i = 0; i < sizeOfArray; i++) {
shuffledList.add(util.getRandomCountry());
}
return shuffledList;
}
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