Basic
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package com.material.components.activity.banner;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.material.snackbar.Snackbar;
import com.material.components.R;
import com.material.components.adapter.AdapterGridBasic;
import com.material.components.data.DataGenerator;
import com.material.components.utils.Tools;
import com.material.components.utils.ViewAnimation;
import com.material.components.widget.SpacingItemDecoration;
import java.util.List;
public class BannerBasic extends AppCompatActivity {
private View parent_view;
private View banner;
private RecyclerView recyclerView;
private AdapterGridBasic mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_banner_basic);
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("My Picture");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
Tools.setSystemBarColor(this);
}
private void initComponent() {
recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new GridLayoutManager(this, 3));
recyclerView.addItemDecoration(new SpacingItemDecoration(3, Tools.dpToPx(this, 8), true));
recyclerView.setHasFixedSize(true);
List items = DataGenerator.getNatureImages(this);
items.addAll(DataGenerator.getNatureImages(this));
items.addAll(DataGenerator.getNatureImages(this));
items.addAll(DataGenerator.getNatureImages(this));
//set data and list adapter
mAdapter = new AdapterGridBasic(this, items);
recyclerView.setAdapter(mAdapter);
banner = findViewById(R.id.banner);
banner.setVisibility(View.GONE);
// on item list clicked
mAdapter.setOnItemClickListener(new AdapterGridBasic.OnItemClickListener() {
@Override
public void onItemClick(View view, Integer obj, int position) {
if (banner.getVisibility() == View.GONE) {
ViewAnimation.expand(banner);
} else {
ViewAnimation.collapse(banner);
}
}
});
new Handler(this.getMainLooper()).postDelayed(new Runnable() {
@Override
public void run() {
ViewAnimation.expand(banner);
}
}, 1500);
}
@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);
}
public void onBannerActionClicked(View view) {
ViewAnimation.collapse(banner);
}
}