Pull Refresh

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Chat Progress & Activity
											
package com.material.components.activity.progressactivity;

import android.os.Bundle;
import android.os.Handler;
import com.google.android.material.snackbar.Snackbar;
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.appcompat.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;

import com.material.components.R;
import com.material.components.adapter.AdapterListSectioned;
import com.material.components.data.DataGenerator;
import com.material.components.model.People;
import com.material.components.utils.Tools;

import java.util.List;

public class ProgressPullRefresh extends AppCompatActivity {

    private View parent_view;

    private SwipeRefreshLayout swipe_refresh;
    private RecyclerView recyclerView;
    private AdapterListSectioned mAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_progress_pull_refresh);
        parent_view = findViewById(android.R.id.content);

        initToolbar();
        initComponent();
    }

    private void initToolbar() {
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        toolbar.setNavigationIcon(R.drawable.ic_menu);
        setSupportActionBar(toolbar);
        getSupportActionBar().setTitle("Pull Refresh");
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        Tools.setSystemBarColor(this);
    }

    private void initComponent() {
        swipe_refresh = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
        recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        recyclerView.setHasFixedSize(true);

        List items = DataGenerator.getPeopleData(this);
        items.addAll(DataGenerator.getPeopleData(this));

        int sect_count = 0;
        int sect_idx = 0;
        List months = DataGenerator.getStringsMonth(this);
        for (int i = 0; i < items.size() / 6; i++) {
            items.add(sect_count, new People(months.get(sect_idx), true));
            sect_count = sect_count + 5;
            sect_idx++;
        }

        //set data and list adapter
        mAdapter = new AdapterListSectioned(this, items);
        recyclerView.setAdapter(mAdapter);

        // on item list clicked
        mAdapter.setOnItemClickListener(new AdapterListSectioned.OnItemClickListener() {
            @Override
            public void onItemClick(View view, People obj, int position) {
                Snackbar.make(parent_view, "Item " + obj.name + " clicked", Snackbar.LENGTH_SHORT).show();
            }
        });

        // on swipe list
        swipe_refresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                pullAndRefresh();
            }
        });

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_search_setting, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            finish();
        } else {
            Toast.makeText(getApplicationContext(), item.getTitle(), Toast.LENGTH_SHORT).show();
        }
        return super.onOptionsItemSelected(item);
    }


    private void pullAndRefresh() {
        swipeProgress(true);
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                List items = DataGenerator.getPeopleData(getApplicationContext());
                mAdapter.insertItem(1, items.get(0));
                swipeProgress(false);
            }
        }, 3000);
    }

    private void swipeProgress(final boolean show) {
        if (!show) {
            swipe_refresh.setRefreshing(show);
            return;
        }
        swipe_refresh.post(new Runnable() {
            @Override
            public void run() {
                swipe_refresh.setRefreshing(show);
            }
        });
    }
}											
											
										
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