Add endless scrolling

README.md

@@ -75,3 +75,88 @@ Step 4. Add custom style in your styles.xml
     	</style>
 
 
+# Use with pagination
+
+Step 1. Inside JAVA
+
+    public class MainActivityPaged extends AppCompatActivity {
+
+        ArrayList<String> mItems = new ArrayList<>();
+        SpinnerDialogPaged mSpinnerDialogPaged;
+        TextView mSelectedItems;
+
+        @Override
+        protected void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            setContentView(R.layout.activity_main);
+            mSelectedItems = findViewById(R.id.txt);
+
+            mSpinnerDialogPaged = new SpinnerDialogPaged(MainActivityPaged.this, mItems,
+                    "Select");
+
+            mSpinnerDialogPaged.setCancellable(true); // for cancellable
+            mSpinnerDialogPaged.setShowKeyboard(false); // for open keyboard by default
+            mSpinnerDialogPaged.setVisibleThreshold(3); // set visible threshold
+            mSpinnerDialogPaged.setHideSearchField(true); // hide or show search field with true of false
+
+            getUsers(1); // make your request for api
+
+            findViewById(R.id.show).setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    mSpinnerDialogPaged.showSpinerDialog();
+                }
+            });
+
+
+            mSpinnerDialogPaged.bindOnLoadMoreListener(new OnLoadMoreListener() {
+                @Override
+                public void onLoadMore(int page) {
+                    getUsers(page); // make your request for api with the new page returned
+                }
+            });
+
+            mSpinnerDialogPaged.bindOnAfterTextChanged(new OnAfterTextChangedListener() {
+                @Override
+                public void onAfterTextChanged(String term) {
+                    // get the search term
+                }
+            });
+
+        }
+
+        private void getUsers(int page) {
+            mSpinnerDialogPaged.showProgressBar(); // show the progress bar before your request
+
+            RetrofitConfig.createService(UserService.class).getUsers(page).enqueue(new Callback<Response>() {
+                @Override
+                public void onResponse(Call<Response> call, retrofit2.Response<Response> response) {
+                    if (response.isSuccessful()) {
+                        mSpinnerDialogPaged.hideProgressBar(); // hide the progress bar after your request
+
+                        for (Data item : response.body().getData()) {
+                            mItems.add(item.getEmail());
+                        }
+
+                        mSpinnerDialogPaged.addMoreItems(mItems);
+                        mSpinnerDialogPaged.bindOnSpinerListener(new OnSpinerItemClick() {
+                            @Override
+                            public void onClick(String item, int position) {
+                                Toast.makeText(MainActivityPaged.this, item + "  " + position + "", Toast.LENGTH_SHORT).show();
+                                mSelectedItems.setText(item + " Position: " + position);
+
+                            }
+                        });
+
+                    }
+                }
+
+                @Override
+                public void onFailure(Call<Response> call, Throwable t) {
+
+                }
+            });
+        }
+
+
+    }

app/build.gradle

@@ -28,4 +28,9 @@ dependencies {
     testImplementation 'junit:junit:4.12'
     //implementation 'com.github.MdFarhanRaja:SearchableSpinner:2.1'
     implementation project(':spinerdialog')
+    implementation 'com.squareup.retrofit2:retrofit:2.5.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.5.0'
+    implementation 'com.squareup.okhttp3:logging-interceptor:3.12.1'
+
+
 }

app/src/main/AndroidManifest.xml

@@ -2,6 +2,13 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="in.galaxyofandroid.searchablespinner">
 
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.VIBRATE" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -15,6 +22,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".MainActivityPaged" />
     </application>
 
 </manifest>

app/src/main/java/in/galaxyofandroid/searchablespinner/Data.java

@@ -0,0 +1,23 @@
+package in.galaxyofandroid.searchablespinner;
+
+public class Data {
+
+    private Integer id;
+    private String email;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+}

app/src/main/java/in/galaxyofandroid/searchablespinner/MainActivityPaged.java

@@ -0,0 +1,105 @@
+package in.galaxyofandroid.searchablespinner;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+
+import in.galaxyofandroid.spinerdialog.OnAfterTextChangedListener;
+import in.galaxyofandroid.spinerdialog.OnLoadMoreListener;
+import in.galaxyofandroid.spinerdialog.OnSpinerItemClick;
+import in.galaxyofandroid.spinerdialog.SpinnerDialogPaged;
+import retrofit2.Call;
+import retrofit2.Callback;
+
+public class MainActivityPaged extends AppCompatActivity {
+
+    ArrayList<String> mItems = new ArrayList<>();
+    SpinnerDialogPaged mSpinnerDialogPaged;
+    TextView mSelectedItems;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        mSelectedItems = findViewById(R.id.txt);
+
+        mSpinnerDialogPaged = new SpinnerDialogPaged(MainActivityPaged.this, mItems,
+                "Select");
+
+        mSpinnerDialogPaged.setTitleColor(getResources().getColor(R.color.colorAccent));
+        mSpinnerDialogPaged.setSearchIconColor(getResources().getColor(R.color.colorAccent));
+        mSpinnerDialogPaged.setSearchTextColor(getResources().getColor(R.color.colorAccent));
+        mSpinnerDialogPaged.setItemColor(getResources().getColor(R.color.colorAccent));
+        mSpinnerDialogPaged.setItemDividerColor(getResources().getColor(R.color.colorAccent));
+        mSpinnerDialogPaged.setCloseColor(getResources().getColor(R.color.colorAccent));
+
+        mSpinnerDialogPaged.setCancellable(true); // for cancellable
+        mSpinnerDialogPaged.setShowKeyboard(false); // for open keyboard by default
+        mSpinnerDialogPaged.setVisibleThreshold(3); // set visible threshold
+        mSpinnerDialogPaged.setHideSearchField(true); // hide or show search field with true of false
+
+        getUsers(1); // make your request for api
+
+        findViewById(R.id.show).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mSpinnerDialogPaged.showSpinerDialog();
+            }
+        });
+
+
+        mSpinnerDialogPaged.bindOnLoadMoreListener(new OnLoadMoreListener() {
+            @Override
+            public void onLoadMore(int page) {
+                getUsers(page); // make your request for api with the new page returned
+            }
+        });
+
+        mSpinnerDialogPaged.bindOnAfterTextChanged(new OnAfterTextChangedListener() {
+            @Override
+            public void onAfterTextChanged(String term) {
+                // get the search term
+            }
+        });
+
+    }
+
+    private void getUsers(int page) {
+        mSpinnerDialogPaged.showProgressBar(); // show the progress bar before your request
+
+        RetrofitConfig.createService(UserService.class).getUsers(page).enqueue(new Callback<Response>() {
+            @Override
+            public void onResponse(Call<Response> call, retrofit2.Response<Response> response) {
+                if (response.isSuccessful()) {
+                    mSpinnerDialogPaged.hideProgressBar(); // hide the progress bar after your request
+
+                    for (Data item : response.body().getData()) {
+                        mItems.add(item.getEmail());
+                    }
+
+                    mSpinnerDialogPaged.addMoreItems(mItems);
+                    mSpinnerDialogPaged.bindOnSpinerListener(new OnSpinerItemClick() {
+                        @Override
+                        public void onClick(String item, int position) {
+                            Toast.makeText(MainActivityPaged.this, item + "  " + position + "", Toast.LENGTH_SHORT).show();
+                            mSelectedItems.setText(item + " Position: " + position);
+
+                        }
+                    });
+
+                }
+            }
+
+            @Override
+            public void onFailure(Call<Response> call, Throwable t) {
+
+            }
+        });
+    }
+
+
+}

app/src/main/java/in/galaxyofandroid/searchablespinner/Response.java

@@ -0,0 +1,35 @@
+package in.galaxyofandroid.searchablespinner;
+
+import java.util.List;
+
+public class Response {
+
+    private int page;
+    private int total;
+
+    private List<Data> data;
+
+    public List<Data> getData() {
+        return data;
+    }
+
+    public void setData(List<Data> data) {
+        this.data = data;
+    }
+
+    public int getPage() {
+        return page;
+    }
+
+    public void setPage(int page) {
+        this.page = page;
+    }
+
+    public int getTotal() {
+        return total;
+    }
+
+    public void setTotal(int total) {
+        this.total = total;
+    }
+}

app/src/main/java/in/galaxyofandroid/searchablespinner/RetrofitConfig.java

@@ -0,0 +1,35 @@
+package in.galaxyofandroid.searchablespinner;
+
+import com.google.gson.Gson;
+
+import java.util.concurrent.TimeUnit;
+
+import okhttp3.OkHttpClient;
+import okhttp3.logging.HttpLoggingInterceptor;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+public class RetrofitConfig {
+
+    private static final String BASE_URL = "https://reqres.in/";
+
+    public static <S> S createService(Class<S> serviceClass) {
+
+        HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
+        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
+
+        OkHttpClient.Builder httpClient = new OkHttpClient.Builder()
+                .readTimeout(15, TimeUnit.SECONDS);
+
+        httpClient.addInterceptor(loggingInterceptor);
+
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl(BASE_URL)
+                .addConverterFactory(GsonConverterFactory.create(new Gson()))
+                .client(httpClient.build())
+                .build();
+
+        return retrofit.create(serviceClass);
+    }
+
+}

app/src/main/java/in/galaxyofandroid/searchablespinner/UserService.java

@@ -0,0 +1,11 @@
+package in.galaxyofandroid.searchablespinner;
+
+import retrofit2.Call;
+import retrofit2.http.GET;
+import retrofit2.http.Query;
+
+public interface UserService {
+
+    @GET("api/users")
+    Call<Response> getUsers(@Query("page") int page);
+}

spinerdialog/src/main/java/in/galaxyofandroid/spinerdialog/EndlessScrollListener.java

@@ -0,0 +1,39 @@
+package in.galaxyofandroid.spinerdialog;
+
+import android.widget.AbsListView;
+
+public abstract class EndlessScrollListener implements AbsListView.OnScrollListener {
+
+    private int visibleThreshold;
+    private int currentPage = 0;
+    private int previousTotal = 0;
+    private boolean loading = true;
+
+    public EndlessScrollListener(int visibleThreshold) {
+        this.visibleThreshold = visibleThreshold;
+    }
+
+    @Override
+    public void onScroll(AbsListView view, int firstVisibleItem,
+                         int visibleItemCount, int totalItemCount) {
+        if (loading) {
+            if (totalItemCount > previousTotal) {
+                loading = false;
+                previousTotal = totalItemCount;
+                currentPage++;
+            }
+        }
+        if (!loading && (totalItemCount - visibleItemCount) <= (firstVisibleItem + visibleThreshold)) {
+            // I load the next page of gigs using a background task,
+            // but you can call any function here.
+            onLoadMore(currentPage + 1);
+            loading = true;
+        }
+    }
+
+    @Override
+    public void onScrollStateChanged(AbsListView view, int scrollState) {
+    }
+
+    abstract void onLoadMore(int currentPage);
+}

spinerdialog/src/main/java/in/galaxyofandroid/spinerdialog/OnAfterTextChangedListener.java

@@ -0,0 +1,6 @@
+package in.galaxyofandroid.spinerdialog;
+
+public interface OnAfterTextChangedListener {
+
+    void onAfterTextChanged(String term);
+}