Java tutorial
/* * Copyright (c) 2015 IRCCloud, Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.irccloud.android.fragment; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.databinding.DataBindingUtil; import android.graphics.PorterDuff; import android.os.Build; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.DialogFragment; import android.support.v7.app.AlertDialog; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.WindowManager; import android.widget.EditText; import android.widget.TextView; import com.fasterxml.jackson.databind.JsonNode; import com.irccloud.android.ColorScheme; import com.irccloud.android.IRCCloudApplication; import com.irccloud.android.IRCCloudJSONObject; import com.irccloud.android.NetworkConnection; import com.irccloud.android.R; import com.irccloud.android.data.model.Server; import com.irccloud.android.data.collection.ServersList; import com.irccloud.android.databinding.RowHostmaskBinding; import org.solovyev.android.views.llm.LinearLayoutManager; public class IgnoreListFragment extends DialogFragment implements NetworkConnection.IRCEventHandler { JsonNode ignores; int cid; IgnoresAdapter adapter; NetworkConnection conn; RecyclerView recyclerView; TextView empty; private class ViewHolder extends RecyclerView.ViewHolder { public RowHostmaskBinding binding; public ViewHolder(View v) { super(v); binding = DataBindingUtil.bind(v); } } private class IgnoresAdapter extends RecyclerView.Adapter<ViewHolder> { @Override public int getItemCount() { return ignores.size(); } @Override public long getItemId(int pos) { return pos; } OnClickListener removeClickListener = new OnClickListener() { @Override public void onClick(View v) { Integer position = (Integer) v.getTag(); try { conn.unignore(cid, ignores.get(position).asText()); } catch (Exception e) { // TODO Auto-generated catch block NetworkConnection.printStackTraceToCrashlytics(e); } } }; @Override public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View v = RowHostmaskBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false).getRoot(); return new ViewHolder(v); } @Override public void onBindViewHolder(ViewHolder holder, final int position) { RowHostmaskBinding row = holder.binding; row.setLabel(ignores.get(position).asText()); row.removeBtn.setOnClickListener(removeClickListener); row.removeBtn.setColorFilter(ColorScheme.getInstance().colorControlNormal, PorterDuff.Mode.SRC_ATOP); row.removeBtn.setTag(position); row.executePendingBindings(); } } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { Context ctx = getActivity(); if (ctx == null) return null; LayoutInflater inflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = inflater.inflate(R.layout.recyclerview, null); recyclerView = v.findViewById(R.id.recycler); recyclerView.setLayoutManager(new LinearLayoutManager(v.getContext())); empty = v.findViewById(android.R.id.empty); empty.setText( "You're not ignoring anyone at the moment.\n\nYou can ignore someone by tapping their nickname in the user list, long-pressing a message, or by using /ignore."); if (savedInstanceState != null && savedInstanceState.containsKey("cid")) { cid = savedInstanceState.getInt("cid"); ignores = ServersList.getInstance().getServer(cid).raw_ignores; adapter = new IgnoresAdapter(); recyclerView.setAdapter(adapter); if (adapter.getItemCount() > 0) { empty.setVisibility(View.GONE); recyclerView.setVisibility(View.VISIBLE); } else { empty.setVisibility(View.VISIBLE); recyclerView.setVisibility(View.GONE); } } Dialog d = new AlertDialog.Builder(ctx) .setTitle("Ignore list for " + ServersList.getInstance().getServer(cid).getName()).setView(v) .setPositiveButton("Add Ignore Mask", new AddClickListener()) .setNegativeButton("Close", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }).create(); d.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); return d; } class AddClickListener implements DialogInterface.OnClickListener { @Override public void onClick(DialogInterface d, int which) { Context ctx = getActivity(); ServersList s = ServersList.getInstance(); Server server = s.getServer(cid); AlertDialog.Builder builder = new AlertDialog.Builder(ctx); LayoutInflater inflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View view = inflater.inflate(R.layout.dialog_textprompt, null); TextView prompt = view.findViewById(R.id.prompt); final EditText input = view.findViewById(R.id.textInput); input.setHint("nickname!user@host.name"); prompt.setText("Ignore messages from this hostmask"); builder.setTitle(server.getName() + " (" + server.getHostname() + ":" + (server.getPort()) + ")"); builder.setView(view); builder.setPositiveButton("Ignore", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { conn.ignore(cid, input.getText().toString()); dialog.dismiss(); } }); builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); AlertDialog dialog = builder.create(); dialog.setOwnerActivity(getActivity()); dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE); dialog.show(); } } @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); conn = NetworkConnection.getInstance(); conn.addHandler(this); } @Override public void onDestroy() { super.onDestroy(); if (conn != null) conn.removeHandler(this); } @Override public void onSaveInstanceState(Bundle state) { state.putInt("cid", cid); } @Override public void setArguments(Bundle args) { cid = args.getInt("cid", 0); if (getActivity() != null && cid > 0 && recyclerView != null) { getActivity().runOnUiThread(new Runnable() { @Override public void run() { ignores = ServersList.getInstance().getServer(cid).raw_ignores; adapter = new IgnoresAdapter(); recyclerView.setAdapter(adapter); if (adapter.getItemCount() > 0) { empty.setVisibility(View.GONE); recyclerView.setVisibility(View.VISIBLE); } else { empty.setVisibility(View.VISIBLE); recyclerView.setVisibility(View.GONE); } } }); } } public void onResume() { super.onResume(); if (ignores == null && cid > 0) { ignores = ServersList.getInstance().getServer(cid).raw_ignores; adapter = new IgnoresAdapter(); recyclerView.setAdapter(adapter); if (adapter.getItemCount() > 0) { empty.setVisibility(View.GONE); recyclerView.setVisibility(View.VISIBLE); } else { empty.setVisibility(View.VISIBLE); recyclerView.setVisibility(View.GONE); } } } public void onIRCEvent(int what, Object obj) { switch (what) { case NetworkConnection.EVENT_MAKESERVER: Server s = (Server) obj; if (s.getCid() == cid && getActivity() != null) { getActivity().runOnUiThread(new Runnable() { @Override public void run() { ignores = ServersList.getInstance().getServer(cid).raw_ignores; adapter.notifyDataSetChanged(); if (adapter.getItemCount() > 0) { empty.setVisibility(View.GONE); recyclerView.setVisibility(View.VISIBLE); } else { empty.setVisibility(View.VISIBLE); recyclerView.setVisibility(View.GONE); } } }); } break; case NetworkConnection.EVENT_SETIGNORES: IRCCloudJSONObject o = (IRCCloudJSONObject) obj; if (o.cid() == cid && getActivity() != null) { getActivity().runOnUiThread(new Runnable() { @Override public void run() { ignores = ServersList.getInstance().getServer(cid).raw_ignores; adapter.notifyDataSetChanged(); if (adapter.getItemCount() > 0) { empty.setVisibility(View.GONE); recyclerView.setVisibility(View.VISIBLE); } else { empty.setVisibility(View.VISIBLE); recyclerView.setVisibility(View.GONE); } } }); } break; default: break; } } @Override public void onIRCRequestSucceeded(int reqid, IRCCloudJSONObject object) { } @Override public void onIRCRequestFailed(int reqid, IRCCloudJSONObject object) { } }