Java tutorial
/* * Copyright (C) 2016 Tobias Erthal * Copyright (C) 2014-2016 Dominik Schrmann <dominik@dominikschuermann.de> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.sufficientlysecure.keychain.ui.adapter; import android.content.Context; import android.graphics.Color; import android.support.v4.content.ContextCompat; import android.support.v7.widget.RecyclerView; import android.util.Pair; import android.util.TypedValue; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import com.tonicartos.superslim.LayoutManager; import org.sufficientlysecure.keychain.R; import org.sufficientlysecure.keychain.operations.results.OperationResult; import org.sufficientlysecure.keychain.ui.util.FormattingUtils; import java.util.ArrayList; import java.util.List; public class NestedLogAdapter extends RecyclerView.Adapter<NestedLogAdapter.LogEntryViewHolder> { private static final int ENTRY_TYPE_REGULAR = 0; private static final int ENTRY_TYPE_SUBLOG = 1; private static final int LOG_ENTRY_ITEM_INDENT = 2; private final int mIndentFactor; private LogActionListener mListener; private List<Pair<OperationResult.LogEntryParcel, Integer>> mLogEntries; public NestedLogAdapter(Context context) { super(); mIndentFactor = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, (float) 8, context.getResources().getDisplayMetrics()); } public NestedLogAdapter(Context context, OperationResult.OperationLog log) { this(context); setLog(log); } public void setListener(LogActionListener listener) { mListener = listener; } public void setLog(OperationResult.OperationLog log) { List<OperationResult.LogEntryParcel> list = log.toList(); if (mLogEntries != null) { mLogEntries.clear(); } else { mLogEntries = new ArrayList<>(list.size()); } int lastSection = 0; for (int i = 0; i < list.size(); i++) { OperationResult.LogEntryParcel parcel = list.get(i); if (parcel.mIndent < LOG_ENTRY_ITEM_INDENT) { lastSection = i; } mLogEntries.add(new Pair<>(parcel, lastSection)); } notifyDataSetChanged(); } @Override public int getItemCount() { return mLogEntries != null ? mLogEntries.size() : 0; } @Override public long getItemId(int position) { OperationResult.LogEntryParcel parcel = getItem(position); return parcel != null ? parcel.hashCode() : -1L; } public OperationResult.LogEntryParcel getItem(int position) { return mLogEntries != null ? mLogEntries.get(position).first : null; } public int getFirstSectionPosition(int position) { return mLogEntries != null ? mLogEntries.get(position).second : 0; } @Override public int getItemViewType(int position) { return (getItem(position) instanceof OperationResult.SubLogEntryParcel) ? ENTRY_TYPE_SUBLOG : ENTRY_TYPE_REGULAR; } public boolean isSection(int position) { return mLogEntries != null && mLogEntries.get(position).second == position; } @Override public LogEntryViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { switch (viewType) { case ENTRY_TYPE_SUBLOG: return new SublogEntryViewHolder(LayoutInflater.from(parent.getContext()) .inflate(R.layout.log_display_sublog_item, parent, false)); case ENTRY_TYPE_REGULAR: return new LogEntryViewHolder(LayoutInflater.from(parent.getContext()) .inflate(R.layout.log_display_regular_item, parent, false)); default: return null; } } @Override public void onBindViewHolder(LogEntryViewHolder holder, int position) { LayoutManager.LayoutParams layoutParams = LayoutManager.LayoutParams .from(holder.itemView.getLayoutParams()); layoutParams.isHeader = isSection(position); layoutParams.setFirstPosition(getFirstSectionPosition(position)); holder.bind(getItem(position), mIndentFactor); holder.itemView.setLayoutParams(layoutParams); } class LogEntryViewHolder extends RecyclerView.ViewHolder { private TextView mLogText; private ImageView mLogImg; public LogEntryViewHolder(View itemView) { super(itemView); mLogText = (TextView) itemView.findViewById(R.id.log_text); mLogImg = (ImageView) itemView.findViewById(R.id.log_img); } public void bind(OperationResult.LogEntryParcel entry, int indentFactor) { String logText; if (entry.mParameters != null && entry.mParameters.length > 0 && entry.mParameters[0] instanceof Integer) { logText = itemView.getResources().getQuantityString(entry.mType.getMsgId(), (int) entry.mParameters[0], entry.mParameters); } else { logText = itemView.getResources().getString(entry.mType.getMsgId(), entry.mParameters); } int textColor, indicatorColor; textColor = indicatorColor = FormattingUtils.getColorFromAttr(itemView.getContext(), R.attr.colorText); switch (entry.mType.mLevel) { case DEBUG: textColor = Color.GRAY; indicatorColor = Color.GRAY; break; case WARN: indicatorColor = ContextCompat.getColor(itemView.getContext(), R.color.android_orange_light); break; case ERROR: indicatorColor = ContextCompat.getColor(itemView.getContext(), R.color.android_red_light); break; case OK: indicatorColor = ContextCompat.getColor(itemView.getContext(), R.color.android_green_light); break; case CANCELLED: indicatorColor = ContextCompat.getColor(itemView.getContext(), R.color.android_red_light); break; } mLogText.setText(logText); mLogText.setTextColor(textColor); mLogImg.setBackgroundColor(indicatorColor); itemView.setPadding((entry.mIndent) * indentFactor, 0, 0, 0); } } class SublogEntryViewHolder extends LogEntryViewHolder implements View.OnClickListener { private TextView mSublogText; private ImageView mSublogImg; public SublogEntryViewHolder(View itemView) { super(itemView); itemView.setClickable(true); itemView.setOnClickListener(this); mSublogText = (TextView) itemView.findViewById(R.id.log_second_text); mSublogImg = (ImageView) itemView.findViewById(R.id.log_second_img); } @Override public void bind(OperationResult.LogEntryParcel entry, int indentFactor) { super.bind(entry, indentFactor); OperationResult.LogEntryParcel sublogEntry = ((OperationResult.SubLogEntryParcel) entry).getSubResult() .getLog().getLast(); String logText; if (sublogEntry.mParameters != null && sublogEntry.mParameters.length > 0 && sublogEntry.mParameters[0] instanceof Integer) { logText = itemView.getResources().getQuantityString(sublogEntry.mType.getMsgId(), (int) sublogEntry.mParameters[0], sublogEntry.mParameters); } else { logText = itemView.getResources().getString(sublogEntry.mType.getMsgId(), sublogEntry.mParameters); } int textColor, indicatorColor; textColor = indicatorColor = FormattingUtils.getColorFromAttr(itemView.getContext(), R.attr.colorText); switch (sublogEntry.mType.mLevel) { case DEBUG: textColor = Color.GRAY; indicatorColor = Color.GRAY; break; case WARN: indicatorColor = ContextCompat.getColor(itemView.getContext(), R.color.android_orange_light); break; case ERROR: indicatorColor = ContextCompat.getColor(itemView.getContext(), R.color.android_red_light); break; case OK: indicatorColor = ContextCompat.getColor(itemView.getContext(), R.color.android_green_light); break; case CANCELLED: indicatorColor = ContextCompat.getColor(itemView.getContext(), R.color.android_red_light); break; } mSublogText.setText(logText); mSublogText.setTextColor(textColor); mSublogImg.setBackgroundColor(indicatorColor); } @Override public void onClick(View v) { if (mListener != null) { OperationResult.LogEntryParcel parcel = getItem(getAdapterPosition()); if (parcel instanceof OperationResult.SubLogEntryParcel) { mListener.onSubEntryClicked((OperationResult.SubLogEntryParcel) parcel); } } } } public interface LogActionListener { void onSubEntryClicked(OperationResult.SubLogEntryParcel subLogEntryParcel); } }