com.weebly.opus1269.copyeverywhere.ui.devices.DevicesActivity.java Source code

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Here is the source code for com.weebly.opus1269.copyeverywhere.ui.devices.DevicesActivity.java

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/*
 *
 * Copyright 2016 Michael A Updike
 *
 * 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.weebly.opus1269.copyeverywhere.ui.devices;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.app.NavUtils;
import android.support.v4.content.ContextCompat;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;

import com.weebly.opus1269.copyeverywhere.R;
import com.weebly.opus1269.copyeverywhere.cloud.UpstreamMessages;
import com.weebly.opus1269.copyeverywhere.helpers.AppUtils;
import com.weebly.opus1269.copyeverywhere.model.Devices;
import com.weebly.opus1269.copyeverywhere.ui.shared.MenuTint;

public class DevicesActivity extends AppCompatActivity {
    private static final String TAG = "DevicesActivity";

    // Adapter being used to display the list's data
    private DevicesAdapter mAdapter = null;

    private BroadcastReceiver mDevicesReceiver = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_devices);

        final RecyclerView recyclerView = (RecyclerView) findViewById(R.id.deviceList);
        if (recyclerView != null) {
            mAdapter = new DevicesAdapter();
            recyclerView.setAdapter(mAdapter);
            recyclerView.setLayoutManager(new LinearLayoutManager(this));
        }

        final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        if (fab != null) {
            fab.hide();
        }

        final ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
        }

        // handler for received Intents for the "devices" event
        mDevicesReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                notifyAdapter(intent);
            }

            private void notifyAdapter(Intent intent) {
                final Bundle bundle = intent.getBundleExtra(Devices.BUNDLE);
                final String action = bundle.getString(Devices.ACTION);
                final int pos = bundle.getInt(Devices.POS);
                if (action == null) {
                    return;
                }

                AppUtils.log(TAG, "Devices change: " + action + " pos: " + pos);

                switch (action) {
                case Devices.ACTION_ADD:
                    mAdapter.notifyItemInserted(pos);
                    break;
                case Devices.ACTION_REMOVE:
                    mAdapter.notifyItemRemoved(pos);
                    break;
                case Devices.ACTION_CLEAR:
                    mAdapter.notifyDataSetChanged();
                    break;
                default:
                    break;
                }
            }
        };
    }

    @Override
    protected void onStart() {
        super.onStart();

        // ping devices
        UpstreamMessages.sendPing();
    }

    @Override
    protected void onPause() {
        super.onPause();
        // Unregister since the activity is not visible
        LocalBroadcastManager.getInstance(this).unregisterReceiver(mDevicesReceiver);
        super.onPause();
    }

    @Override
    protected void onResume() {
        super.onResume();
        // Register mDevicesReceiver to receive messages.
        LocalBroadcastManager.getInstance(this).registerReceiver(mDevicesReceiver,
                new IntentFilter(Devices.INTENT_FILTER));
    }

    @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_devices, menu);

        final int color = ContextCompat.getColor(this, R.color.icons);
        final int alpha = 255;
        MenuTint.on(menu).setMenuItemIconColor(color).setMenuItemIconAlpha(alpha).apply(this);

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        boolean processed = true;

        final int id = item.getItemId();
        switch (id) {
        case R.id.home:
            NavUtils.navigateUpFromSameTask(this);
            break;
        case R.id.action_refresh:
            doRefresh();
            break;
        case R.id.action_delete:
            //                showDeleteDialog();
            break;
        default:
            processed = false;
            break;
        }

        return processed || super.onOptionsItemSelected(item);
    }

    private static void doRefresh() {
        UpstreamMessages.sendPing();
    }
}