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package com.android.launcher3;
import android.content.Context;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.launcher3.compat.AlphabeticIndexCompat;
/**
* The linear list view adapter for all the apps.
*/
class AppsListAdapter extends RecyclerView.Adapter<AppsListAdapter.ViewHolder> {
/**
* ViewHolder for each row.
*/
public static class ViewHolder extends RecyclerView.ViewHolder {
public View mContent;
public ViewHolder(View v) {
super(v);
mContent = v;
}
}
private static final int SECTION_BREAK_VIEW_TYPE = 0;
private static final int ICON_VIEW_TYPE = 1;
private LayoutInflater mLayoutInflater;
private AlphabeticalAppsList mApps;
private View.OnTouchListener mTouchListener;
private View.OnClickListener mIconClickListener;
private View.OnLongClickListener mIconLongClickListener;
public AppsListAdapter(Context context, AlphabeticalAppsList apps,
View.OnTouchListener touchListener, View.OnClickListener iconClickListener,
View.OnLongClickListener iconLongClickListener) {
mApps = apps;
mLayoutInflater = LayoutInflater.from(context);
mTouchListener = touchListener;
mIconClickListener = iconClickListener;
mIconLongClickListener = iconLongClickListener;
}
public RecyclerView.LayoutManager getLayoutManager(Context context) {
return new LinearLayoutManager(context);
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch (viewType) {
case SECTION_BREAK_VIEW_TYPE:
return new ViewHolder(new View(parent.getContext()));
case ICON_VIEW_TYPE:
// Inflate the row and all the icon children necessary
ViewGroup row = (ViewGroup) mLayoutInflater.inflate(R.layout.apps_list_row_view,
parent, false);
BubbleTextView icon = (BubbleTextView) mLayoutInflater.inflate(
R.layout.apps_list_row_icon_view, row, false);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
ViewGroup.LayoutParams.WRAP_CONTENT, 1);
lp.gravity = Gravity.CENTER_VERTICAL;
icon.setLayoutParams(lp);
icon.setOnTouchListener(mTouchListener);
icon.setOnClickListener(mIconClickListener);
icon.setOnLongClickListener(mIconLongClickListener);
icon.setFocusable(true);
row.addView(icon);
return new ViewHolder(row);
default:
throw new RuntimeException("Unexpected view type");
}
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
AppInfo info = mApps.getApps().get(position);
if (info != AlphabeticalAppsList.SECTION_BREAK_INFO) {
ViewGroup content = (ViewGroup) holder.mContent;
String sectionDescription = mApps.getSectionNameForApp(info);
// Bind the section header
boolean showSectionHeader = true;
if (position > 0) {
AppInfo prevInfo = mApps.getApps().get(position - 1);
showSectionHeader = (prevInfo == AlphabeticalAppsList.SECTION_BREAK_INFO);
}
TextView tv = (TextView) content.findViewById(R.id.section);
if (showSectionHeader) {
tv.setText(sectionDescription);
tv.setVisibility(View.VISIBLE);
} else {
tv.setVisibility(View.INVISIBLE);
}
// Bind the icon
BubbleTextView icon = (BubbleTextView) content.getChildAt(1);
icon.applyFromApplicationInfo(info);
}
}
@Override
public int getItemCount() {
return mApps.getApps().size();
}
@Override
public int getItemViewType(int position) {
if (mApps.getApps().get(position) == AlphabeticalAppsList.SECTION_BREAK_INFO) {
return SECTION_BREAK_VIEW_TYPE;
}
return ICON_VIEW_TYPE;
}
}
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