I want to know how to randomly display images in gridview through SwipeRefreshLayout - android-studio

Question

SwipeRefreshLayout refreshLayout = findViewById(R.id.refresh_grid);
refreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
getImages();
refreshLayout.setRefreshing(false);
}
});
getImages();
}
I want to know how to randomly display images in gridview through SwipeRefreshLayout
I want a UI like the site https://www.pinterest.com
I want to show random images on refresh to show a lot of images, can you tell me how?
thank you in advance
Below is the full code.
public class MainActivity extends AppCompatActivity {
private List<String> mImagesLinks = new ArrayList<>();
private GridView mGridView;
FloatingActionButton option_01;
FloatingActionButton option_02;
FloatingActionButton option_03;
FloatingActionButton option_04;
static final int PERMISSIONS_REQUEST = 0x0000001;
//종료팝업 전면광고 추가
private static final String TAG = "ted";
TedAdmobDialog nativeTedAdmobDialog;
int nCurrentPermission = 0;
private AdView mAdView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
MobileAds.initialize(this, getString(R.string.admob_app_id));
mAdView = findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);
checkPermission();
mGridView = findViewById(R.id.grid_view);
mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
startActivity(new Intent(MainActivity.this, ImageActivity.class)
.putExtra("Link", mImagesLinks.get(i)));
}
});
option_01 = findViewById(R.id.option_01);
option_01.setOnClickListener(v -> {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://play.google.com/store/apps/details?id=" + getPackageName()));
startActivity(intent);
});
option_02 = findViewById(R.id.option_02);
option_02.setOnClickListener(v -> {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://play.google.com/store/apps/developer?id=Project+J+Lab"));
startActivity(intent);
});
option_03 = findViewById(R.id.option_03);
option_03.setOnClickListener(v -> {
Intent myintent = new Intent(Intent.ACTION_SEND);
myintent.setType("text/plan");
String shereBoday = "Your Boday Here";
String shereSub = "\"http://play.google.com/store/apps/details?id=" + getPackageName();
myintent.putExtra(Intent.EXTRA_SUBJECT, shereBoday);
myintent.putExtra(Intent.EXTRA_TEXT, shereSub);
startActivity(Intent.createChooser(myintent, "shere Using"));
});
option_04 = findViewById(R.id.option_04);
option_04.setOnClickListener(v -> {
Intent email = new Intent(Intent.ACTION_SEND);
email.setType("plain/text");
String[] address = {"dhsthdwjd1#gmail.com"};
email.putExtra(Intent.EXTRA_EMAIL, address);
email.putExtra(Intent.EXTRA_SUBJECT, getPackageName());
email.putExtra(Intent.EXTRA_TEXT, "text");
startActivity(email);
});
SwipeRefreshLayout refreshLayout = findViewById(R.id.refresh_grid);
refreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
getImages();
refreshLayout.setRefreshing(false);
}
});
getImages();
}
private void getImages() {
Call<List<String>> imagesResponse = NetworkUtils.getInterface().loadImages();
imagesResponse.enqueue(new Callback<List<String>>() {
#Override
public void onResponse(Call<List<String>> call, Response<List<String>> response) {
if (response.isSuccessful()) {
mImagesLinks = response.body();
ImagesAdapter imagesAdapter = new ImagesAdapter(MainActivity.this, mImagesLinks);
mGridView.setAdapter(imagesAdapter);
imagesAdapter.notifyDataSetChanged();
} else {
Toast.makeText(MainActivity.this, R.string.error_response, Toast.LENGTH_SHORT).show();
}
}
#Override
public void onFailure(Call<List<String>> call, Throwable t) {
Toast.makeText(MainActivity.this, t.getLocalizedMessage(), Toast.LENGTH_LONG).show();
}
});
}
#Override
public void onBackPressed() {
//종료팝업 전면광고 추가
nativeTedAdmobDialog = new TedAdmobDialog.Builder(MainActivity.this, TedAdmobDialog.AdType.NATIVE, getString(R.string.banner_ad_unit_id_native))
.setOnBackPressListener(new OnBackPressListener() {
#Override
public void onReviewClick() {
}
#Override
public void onFinish() {
finish();
}
#Override
public void onAdShow() {
log("onAdShow");
nativeTedAdmobDialog.loadNative();
}
})
.create();
nativeTedAdmobDialog.show();
}
//종료팝업 전면광고 추가
private void log(String text) {
Log.d(TAG, text);
}
private void checkPermission() {
PermissionListener permissionlistener = new PermissionListener() {
#Override
public void onPermissionGranted() {
}
#Override
public void onPermissionDenied(List<String> deniedPermissions) {
}
};
TedPermission.with(this)
.setPermissionListener(permissionlistener)
.setPermissions(
Manifest.permission.INTERNET,
Manifest.permission.ACCESS_NETWORK_STATE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.SET_WALLPAPER,
Manifest.permission.READ_CONTACTS)
.check();
}
}

Answer 1

Just use Collections.shuffle(list); in your getImages() function.
Refer this for more information : https://www.geeksforgeeks.org/shuffle-or-randomize-a-list-in-java/