Cleanup code

Snapcast/src/main/java/de/badaix/snapcast/ClientItem.java

@@ -53,12 +53,12 @@ public ClientItem(Context context, Client client) {
         LayoutInflater vi = (LayoutInflater) context
                 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         vi.inflate(R.layout.client_item, this);
-        title = (TextView) findViewById(R.id.title);
-        volumeSeekBar = (SeekBar) findViewById(R.id.volumeSeekBar);
-        ibMute = (ImageButton) findViewById(R.id.ibMute);
+        title = findViewById(R.id.title);
+        volumeSeekBar = findViewById(R.id.volumeSeekBar);
+        ibMute = findViewById(R.id.ibMute);
         ibMute.setImageResource(R.drawable.ic_speaker_icon);
         ibMute.setOnClickListener(this);
-        ibOverflow = (ImageButton) findViewById(R.id.ibOverflow);
+        ibOverflow = findViewById(R.id.ibOverflow);
         ibOverflow.setOnClickListener(this);
         volumeSeekBar.setOnSeekBarChangeListener(this);
         setClient(client);

Snapcast/src/main/java/de/badaix/snapcast/ClientSettingsFragment.java

@@ -71,13 +71,13 @@ public boolean onPreferenceChange(Preference preference, Object newValue) {
             }
         });
 
-        prefMac = (Preference) findPreference("pref_client_mac");
-        prefId = (Preference) findPreference("pref_client_id");
-        prefIp = (Preference) findPreference("pref_client_ip");
-        prefHost = (Preference) findPreference("pref_client_host");
-        prefOS = (Preference) findPreference("pref_client_os");
-        prefVersion = (Preference) findPreference("pref_client_version");
-        prefLastSeen = (Preference) findPreference("pref_client_last_seen");
+        prefMac = findPreference("pref_client_mac");
+        prefId = findPreference("pref_client_id");
+        prefIp = findPreference("pref_client_ip");
+        prefHost = findPreference("pref_client_host");
+        prefOS = findPreference("pref_client_os");
+        prefVersion = findPreference("pref_client_version");
+        prefLastSeen = findPreference("pref_client_last_seen");
         prefLatency = (EditTextPreference) findPreference("pref_client_latency");
         prefLatency.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
             @Override

Snapcast/src/main/java/de/badaix/snapcast/GroupItem.java

@@ -69,17 +69,17 @@ public GroupItem(Context context, ServerStatus server, Group group) {
                 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         vi.inflate(R.layout.group_item, this);
 //        title = (TextView) findViewById(R.id.title);
-        volumeSeekBar = (SeekBar) findViewById(R.id.volumeSeekBar);
-        ibMute = (ImageButton) findViewById(R.id.ibMute);
+        volumeSeekBar = findViewById(R.id.volumeSeekBar);
+        ibMute = findViewById(R.id.ibMute);
         ibMute.setImageResource(R.drawable.ic_speaker_icon);
         ibMute.setOnClickListener(this);
-        ibSettings = (ImageButton) findViewById(R.id.ibSettings);
+        ibSettings = findViewById(R.id.ibSettings);
         ibSettings.setOnClickListener(this);
-        llVolume = (LinearLayout) findViewById(R.id.llVolume);
+        llVolume = findViewById(R.id.llVolume);
         llVolume.setVisibility(GONE);
-        llClient = (LinearLayout) findViewById(R.id.llClient);
+        llClient = findViewById(R.id.llClient);
         llClient.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
-        tvStreamName = (TextView) findViewById(R.id.tvStreamName);
+        tvStreamName = findViewById(R.id.tvStreamName);
         tvStreamName.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View view) {

Snapcast/src/main/java/de/badaix/snapcast/GroupListFragment.java

@@ -71,7 +71,7 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
         // Inflate the layout for this fragment
         Log.d(TAG, "onCreateView: " + this);
         View view = inflater.inflate(R.layout.fragment_group_list, container, false);
-        ListView lvGroup = (ListView) view.findViewById(R.id.lvGroup);
+        ListView lvGroup = view.findViewById(R.id.lvGroup);
         groupAdapter = new GroupAdapter(getContext(), groupItemListener);
         groupAdapter.setHideOffline(hideOffline);
         groupAdapter.updateServer(serverStatus);

Snapcast/src/main/java/de/badaix/snapcast/MainActivity.java

@@ -156,11 +156,11 @@ protected void onCreate(Bundle savedInstanceState) {
 //            tvInfo.setText("Sample rate: " + rate + ", buffer size: " + size);
         }
 
-        coordinatorLayout = (CoordinatorLayout) findViewById(R.id.myCoordinatorLayout);
-        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        coordinatorLayout = findViewById(R.id.myCoordinatorLayout);
+        Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
 
-        btnConnect = (Button) findViewById(R.id.btnConnect);
+        btnConnect = findViewById(R.id.btnConnect);
         btnConnect.setVisibility(View.GONE);
         // Create the adapter that will return a fragment for each of the three
         // primary sections of the activity.

Snapcast/src/main/java/de/badaix/snapcast/ServerDialogFragment.java

@@ -71,20 +71,20 @@ public Dialog onCreateDialog(Bundle savedInstanceState) {
         // Inflate and set the layout for the dialog
         // Pass null as the parent view because its going in the dialog layout
         View view = inflater.inflate(R.layout.dialog_server, null);
-        btnScan = (Button) view.findViewById(R.id.btn_scan);
+        btnScan = view.findViewById(R.id.btn_scan);
         btnScan.setOnClickListener(this);
 
-        editHost = (EditText) view.findViewById(R.id.host);
-        editStreamPort = (EditText) view.findViewById(R.id.stream_port);
-        editControlPort = (EditText) view.findViewById(R.id.control_port);
-        checkBoxAutoStart = (CheckBox) view.findViewById(R.id.checkBoxAutoStart);
+        editHost = view.findViewById(R.id.host);
+        editStreamPort = view.findViewById(R.id.stream_port);
+        editControlPort = view.findViewById(R.id.control_port);
+        checkBoxAutoStart = view.findViewById(R.id.checkBoxAutoStart);
 
-        spinnerAudioEngine = (Spinner) view.findViewById(R.id.audio_engine);
+        spinnerAudioEngine = view.findViewById(R.id.audio_engine);
         ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(getContext(),
                 R.array.audio_engine_array, android.R.layout.simple_spinner_item);
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         spinnerAudioEngine.setAdapter(adapter);
-        checkBoxResample = (CheckBox) view.findViewById(R.id.checkBoxResample);
+        checkBoxResample = view.findViewById(R.id.checkBoxResample);
 
         update();
 

Snapcast/src/main/java/de/badaix/snapcast/control/json/ClientConfig.java

@@ -109,7 +109,7 @@ public boolean equals(Object o) {
         if (latency != that.latency) return false;
         if (!Objects.equals(name, that.name)) return false;
         if (instance != that.instance) return false;
-        return !(!Objects.equals(volume, that.volume));
+        return Objects.equals(volume, that.volume);
 
     }
 

Snapcast/src/main/java/de/badaix/snapcast/control/json/Host.java

@@ -105,7 +105,7 @@ public boolean equals(Object o) {
         if (!Objects.equals(mac, that.mac)) return false;
         if (!Objects.equals(os, that.os)) return false;
         if (!Objects.equals(arch, that.arch)) return false;
-        return !(!Objects.equals(ip, that.ip));
+        return Objects.equals(ip, that.ip);
     }
 
     @Override

Snapcast/src/main/java/de/badaix/snapcast/control/json/Stream.java

@@ -74,7 +74,7 @@ public boolean equals(Object o) {
 
         if (!Objects.equals(uri, stream.uri)) return false;
         if (!Objects.equals(id, stream.id)) return false;
-        return !(!Objects.equals(status, stream.status));
+        return Objects.equals(status, stream.status);
     }
 
     @Override

Snapcast/src/main/java/de/badaix/snapcast/control/json/StreamUri.java

@@ -92,7 +92,7 @@ public boolean equals(Object o) {
         if (!Objects.equals(path, stream.path)) return false;
         if (!Objects.equals(fragment, stream.fragment))
             return false;
-        return !(!Objects.equals(query, stream.query));
+        return Objects.equals(query, stream.query);
     }
 
     @Override