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में स्पर्श पर कोई लहर प्रभाव नहीं है मेरे पास चार ग्रिड तत्वों (2 * 2) के साथ एक पुनर्नवीनीकरण है जो मेनू की तरह काम करता है। हालांकि, जब मैं उन पर क्लिक करता हूं तो कोई लहर प्रभाव नहीं दिखाया जाता है। यह मुझे किसी भी दृश्य पुष्टि के बिना अगली गतिविधि में ले जाता है कि दृश्य दबाया गया था। क्या कोई मदद कर सकता है?पुनर्नवीनीकरण
MainActivity
public class MainActivity extends AppCompatActivity implements MainMenuAdapter.OnItemClickListener {
Toolbar toolbar;
private static List<ViewModel> tileItems = new ArrayList<>();
static {
tileItems.add(new ViewModel("Activity", "#3F51B5", R.drawable.activity));
tileItems.add(new ViewModel("Profile", "#E91E63", R.drawable.profile));
tileItems.add(new ViewModel("Training", "#FF5722", R.drawable.training));
tileItems.add(new ViewModel("Diet", "#4CAF50", R.drawable.diet));
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new GridLayoutManager(this, 2));
MainAdapter adapter = new MainAdapter(tileItems, MainActivity.this);
recyclerView.setAdapter(adapter);
adapter.setOnItemClickListener(this);
// Toolbar
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
@Override
public void onBackPressed() {
this.moveTaskToBack(true);
// this.finishAffinity();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override public void onItemClick(View view, ViewModel viewModel) {
}
}
MainAdapter
public class MainAdapter extends RecyclerView.Adapter<MainMenuAdapter.ViewHolder> implements View.OnClickListener {
private List<ViewModel> items;
private OnItemClickListener onItemClickListener;
private Context context;
// Adapter constructor
public MainAdapter(List<ViewModel> items, Context context) {
this.items = items;
this.context = context;
}
public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.main_item, parent, false);
return new ViewHolder(v);
}
@Override
public void onBindViewHolder(ViewHolder viewHolder, int position) {
final ViewModel dataItem = items.get(position);
viewHolder.colorBlock.setBackgroundColor(dataItem.getColor());
viewHolder.menuName.setText(dataItem.getName());
viewHolder.menuIcon.setImageResource(dataItem.getImage());
viewHolder.itemView.setTag(dataItem);
if (dataItem.getActivity() != null) {
viewHolder.colorBlock.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent i = new Intent(context, dataItem.getActivity());
context.startActivity(i);
}
});
}
}
@Override
public int getItemCount() {
return items.size();
}
@Override public void onClick(final View v) {
// Give some time to the ripple to finish the effect
if (onItemClickListener != null) {
new Handler().postDelayed(new Runnable() {
@Override public void run() {
onItemClickListener.onItemClick(v, (ViewModel) v.getTag());
}
}, 200);
}
}
/** This is our ViewHolder class */
public static class ViewHolder extends RecyclerView.ViewHolder {
public TextView menuName;
public View colorBlock;
public ImageView menuIcon;
public ViewHolder(View convertView) {
super(convertView); // Must call super() first
menuName = (TextView) convertView.findViewById(R.id.menuName);
colorBlock = (View) convertView.findViewById(R.id.colorBlock);
menuIcon = (ImageView) convertView.findViewById(R.id.menuItem);
}
}
public interface OnItemClickListener {
void onItemClick(View view, ViewModel viewModel);
}
}
activity_main.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<include
android:id="@+id/toolbar"
layout="@layout/toolbar"
android:layout_height="wrap_content"
android:layout_width="match_parent"/>
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_below="@id/toolbar"
android:layout_width= "match_parent"
android:layout_height = "match_parent" />
</RelativeLayout>
main_item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusable="true"
android:foreground="?android:attr/selectableItemBackground">
<View
android:id="@+id/colorBlock"
android:layout_width="match_parent"
android:layout_height="170dp" />
<ImageView
android:id="@+id/menuItem"
android:layout_width="120dp"
android:layout_height="120dp"
android:layout_centerHorizontal="true"
android:padding="16dp"
/>
<TextView
android:id="@+id/menuName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="16dp"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:textColor="@android:color/white"
android:textSize="16sp"/>
</RelativeLayout>
लहर स्वचालित नहीं होती है, यह सिर्फ एक ड्रायबल है, आपको जाना है और इसे अपने आप में कुछ दृश्य में रखना है। https://developer.android.com/reference/android/graphics/drawable/RippleDrawable.html – Budius