Visibility funktioniert nicht richtig

1package de.auto;
2
3import java.util.ArrayList;
4import java.util.Set;
5
6import android.app.Activity;
7import android.bluetooth.BluetoothAdapter;
8import android.bluetooth.BluetoothDevice;
9import android.content.BroadcastReceiver;
10import android.content.Context;
11import android.content.Intent;
12import android.content.IntentFilter;
13import android.os.Bundle;
14import android.view.View;
15import android.view.View.OnClickListener;
16import android.widget.ArrayAdapter;
17import android.widget.Button;
18import android.widget.CompoundButton;
19import android.widget.CompoundButton.OnCheckedChangeListener;
20import android.widget.ListView;
21import android.widget.TextView;
22import android.widget.Toast;
23import android.widget.ToggleButton;
24
25public class MainActivity extends Activity {
26
27 ToggleButton tBtn;
28 BluetoothAdapter theBluetoothAdapter;
29 Set<BluetoothDevice> pairedDevices;
30 ArrayAdapter<String> deviceName ;
31 ListView DeviceList;
32 TextView bluetoohOff;
33 TextView availableDivce;
34 Button searchButton;
35
36
37
38 @Override
39 protected void onCreate(Bundle savedInstanceState) {
40 super.onCreate(savedInstanceState);
41 setContentView(R.layout.main);
42
43
44 tBtn = (ToggleButton)findViewById(R.id.toggleButton1);
45 availableDivce = (TextView)findViewById(R.id.textView2);
46 bluetoohOff =(TextView)findViewById(R.id.textView1);
47 DeviceList = (ListView)findViewById(R.id.listView1);
48 searchButton =(Button)findViewById(R.id.button1);
49 deviceName = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1);
50
51
52
53
54 setAdapter();
55 BluetoothEnabled();
56 textVisibilitys();
57 discoverDevices();
58 devicesList();
59 broadCastReceiver();
60
61
62 }
63
64 public void setAdapter(){
65 theBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
66 if (theBluetoothAdapter == null) {
67 Toast.makeText(getApplicationContext(), "Das Gerät hat kein Bluetoot", Toast.LENGTH_SHORT).show();
68 finish();
69 }
70 if(theBluetoothAdapter.isEnabled()){
71 tBtn.setChecked(true);
72 }
73 }
74
75
76
77
78 public void textVisibilitys(){
79 if(theBluetoothAdapter.isEnabled()){
80 availableDivce.setBackgroundColor(getResources().getColor(R.color.availableDevice));
81 availableDivce.setText("Verfügbare Geräte");
82 bluetoohOff.setVisibility(View.INVISIBLE);
83 availableDivce.setVisibility(View.VISIBLE);
84 DeviceList.setVisibility(View.VISIBLE);
85 tBtn.setChecked(true);
86 tBtn.setClickable(false);
87 }
88 else{
89 bluetoohOff.setText("Schalten Sie Bluetooth ein");
90 bluetoohOff.setVisibility(View.VISIBLE);
91 availableDivce.setVisibility(View.INVISIBLE);
92 DeviceList.setVisibility(View.INVISIBLE);
93 }
94 }
95
96
97
98 public void BluetoothEnabled(){
99 tBtn.setOnCheckedChangeListener(new OnCheckedChangeListener() {
100 @Override
101 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
102
103 if(isChecked){
104 if(theBluetoothAdapter.isEnabled() == false){
105 Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
106 int requestBt = 1;
107 startActivityForResult(enableBtIntent, requestBt);
108
109 }
110 }
111 }
112 });
113 }
114
115 public void broadCastReceiver(){
116 final BroadcastReceiver mReceiver = new BroadcastReceiver() {
117 @Override
118 public void onReceive(Context context, Intent intent) {
119 String action = intent.getAction();
120
121 if (BluetoothDevice.ACTION_FOUND.equals(action)) {
122 BluetoothDevice newDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
123 if (newDevice.getBondState() != BluetoothDevice.BOND_BONDED) {
124 deviceName.add(newDevice.getName() + "|" + newDevice.getAddress());
125 deviceName.notifyDataSetChanged();
126
127 }
128 }
129 }
130 }; IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
131 registerReceiver(mReceiver, filter);
132 IntentFilter filter2 = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
133 registerReceiver(mReceiver, filter2);
134 }
135
136
137 public void devicesList(){
138 if(theBluetoothAdapter.isEnabled()){
139 pairedDevices = theBluetoothAdapter.getBondedDevices();
140
141 if (pairedDevices.size() > 0) {
142 for (BluetoothDevice device : pairedDevices) {
143 deviceName.add(device.getName() + "|" + device.getAddress());
144 }
145 }
146
147 if(pairedDevices.size()== 0){
148 Toast.makeText(getApplicationContext(), "Keine Geräte", Toast.LENGTH_SHORT).show();
149 }
150 }
151 }
152
153 public void discoverDevices(){
154
155 searchButton.setOnClickListener(new OnClickListener() {
156
157 @Override
158 public void onClick(View v) {
159
160
161 theBluetoothAdapter.cancelDiscovery();
162 theBluetoothAdapter.startDiscovery();
163 deviceName.clear();
164 DeviceList.setAdapter(deviceName);
165 Toast.makeText(getApplicationContext(), "Scanning", Toast.LENGTH_SHORT).show();
166 }
167 });
168
169
170
171}