Android编程之蓝牙测试实例
更新时间:2015年04月21日 10:03:06 作者:jdh99
这篇文章主要介绍了Android编程之蓝牙测试,较为详细的分析了Android蓝牙测试的相关运行环境与调试技巧,非常具有实用价值,需要的朋友可以参考下
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本文实例讲述了Android编程之蓝牙测试。分享给大家供大家参考。具体分析如下:
一、软件平台:
win7 + eclipse + sdk
二、设计思路:
配合倒计时定时器实现蓝牙打开,可见,扫描三个功能
三、源代码:
main.xml:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | <? xml version = "1.0" encoding = "utf-8" ?> < LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android" android:layout_width = "fill_parent" android:layout_height = "fill_parent" android:orientation = "vertical" > < TextView android:id = "@+id/textView1" android:layout_width = "wrap_content" android:text = "TextView" android:layout_height = "wrap_content" ></ TextView > < LinearLayout android:layout_width = "match_parent" android:layout_height = "wrap_content" android:id = "@+id/linearLayout1" > < Button android:id = "@+id/button1" android:text = "OFF" android:layout_width = "wrap_content" android:layout_height = "wrap_content" ></ Button > </ LinearLayout > < LinearLayout android:layout_width = "match_parent" android:layout_height = "wrap_content" android:id = "@+id/linearLayout2" > < Button android:id = "@+id/button2" android:text = "开启可见 " android:layout_width = "wrap_content" android:layout_height = "wrap_content" ></ Button > < TextView android:id = "@+id/textView2" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "设备不可见 " ></ TextView > </ LinearLayout > < LinearLayout android:layout_width = "match_parent" android:layout_height = "wrap_content" android:id = "@+id/linearLayout3" > < Button android:id = "@+id/button3" android:text = "扫描:OFF" android:layout_width = "wrap_content" android:layout_height = "wrap_content" ></ Button > < TextView android:id = "@+id/textView3" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "停止扫描 " ></ TextView > </ LinearLayout > < ListView android:id = "@+id/listView1" android:layout_height = "wrap_content" android:layout_width = "match_parent" ></ ListView > </ LinearLayout > |
test_bluetooth.java:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 | package com.test_bluetooth; import java.util.Set; import android.app.Activity; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.Bundle; import android.os.CountDownTimer; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ListView; import android.widget.TextView; public class test_bluetooth extends Activity implements View.OnClickListener { private static final int REQUEST_ENABLE_BT = 2 ; TextView txt; TextView txt_see; TextView txt_scan; BluetoothAdapter mBluetoothAdapter; ArrayAdapter<String> mArrayAdapter; Button btn_switch; Button btn_see; Button btn_scan; ListView list; CountDownTimer see_timer; CountDownTimer scan_timer; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.main); txt = (TextView)findViewById(R.id.textView1); txt_see = (TextView)findViewById(R.id.textView2); txt_scan = (TextView)findViewById(R.id.textView3); //绑定XML中的ListView,作为Item的容器 list = (ListView) findViewById(R.id.listView1); //获取蓝牙适配器 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); mArrayAdapter = new ArrayAdapter<String>( this ,android.R.layout.simple_list_item_1); if (mBluetoothAdapter == null ) { // Device does not support Bluetooth txt.setText( "fail" ); //退出程序 test_bluetooth. this .finish(); } btn_switch = (Button)findViewById(R.id.button1); btn_switch.setOnClickListener( this ); btn_see = (Button)findViewById(R.id.button2); btn_see.setOnClickListener( this ); btn_see.setEnabled( false ); btn_scan = (Button)findViewById(R.id.button3); btn_scan.setOnClickListener( this ); btn_scan.setText( "扫描:OFF" ); btn_scan.setEnabled( false ); //判断蓝牙是否已经被打开 if (mBluetoothAdapter.isEnabled()) { //打开 btn_switch.setText( "ON" ); btn_see.setEnabled( true ); btn_scan.setEnabled( true ); } see_timer = new CountDownTimer( 120000 , 1000 ) { @Override public void onTick( long millisUntilFinished) { txt_see.setText( "剩余可见时间" + millisUntilFinished / 1000 + "秒" ); } @Override public void onFinish() { //判断蓝牙是否已经被打开 if (mBluetoothAdapter.isEnabled()) { btn_see.setEnabled( true ); txt_see.setText( "设备不可见" ); } } }; scan_timer = new CountDownTimer( 12000 , 1000 ) { @Override public void onTick( long millisUntilFinished) { txt_scan.setText( "剩余扫描时间" + millisUntilFinished / 1000 + "秒" ); } @Override public void onFinish() { //判断蓝牙是否已经被打开 if (mBluetoothAdapter.isEnabled()) { btn_scan.setEnabled( true ); //关闭扫描 mBluetoothAdapter.cancelDiscovery(); btn_scan.setText( "扫描:OFF" ); txt_scan.setText( "停止扫描" ); } } }; } @Override protected void onDestroy() { super .onDestroy(); android.os.Process.killProcess(android.os.Process.myPid()); } @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.button1: { String str = btn_switch.getText().toString(); if (str == "OFF" ) { if (!mBluetoothAdapter.isEnabled()) { //打开蓝牙 Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT); txt.setText( "s1" ); btn_see.setEnabled( true ); btn_scan.setText( "扫描:OFF" ); btn_scan.setEnabled( true ); } } else { //关闭蓝牙 mBluetoothAdapter.disable(); btn_switch.setText( "OFF" ); mArrayAdapter.clear(); list.setAdapter(mArrayAdapter); btn_see.setEnabled( false ); btn_scan.setEnabled( false ); } break ; } case R.id.button2: { //开启可见 Intent enableBtIntent_See = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); startActivityForResult(enableBtIntent_See, 3 ); txt.setText( "s1" ); btn_see.setEnabled( false ); see_timer.start(); break ; } case R.id.button3: { String str = btn_scan.getText().toString(); if (str == "扫描:OFF" ) { txt.setText( "s5" ); if (mBluetoothAdapter.isEnabled()) { //开始扫描 mBluetoothAdapter.startDiscovery(); txt.setText( "s6" ); btn_scan.setText( "扫描:ON" ); // Create a BroadcastReceiver for ACTION_FOUND final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { // TODO Auto-generated method stub String action = intent.getAction(); // When discovery finds a device mArrayAdapter.clear(); if (BluetoothDevice.ACTION_FOUND.equals(action)) { // Get the BluetoothDevice object from the Intent BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); // Add the name and address to an array adapter to show in a ListView mArrayAdapter.add(device.getName() + ":" + device.getAddress()); } list.setAdapter(mArrayAdapter); } }; // Register the BroadcastReceiver IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND); registerReceiver(mReceiver, filter); // Don't forget to unregister during onDestroy scan_timer.start(); } } else { //关闭扫描 mBluetoothAdapter.cancelDiscovery(); btn_scan.setText( "扫描:OFF" ); scan_timer.cancel(); txt_scan.setText( "停止扫描" ); } break ; } default : break ; } } public void onActivityResult( int requestCode, int resultCode, Intent data) { switch (requestCode) { case REQUEST_ENABLE_BT: // When the request to enable Bluetooth returns if (resultCode == Activity.RESULT_OK) { // Bluetooth is now enabled, so set up a chat session btn_switch.setText( "ON" ); txt.setText( "s4" ); //获取蓝牙列表 Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices(); mArrayAdapter.clear(); // If there are paired devices if (pairedDevices.size() > 0 ) { //txt.setText("s3"); // Loop through paired devices for (BluetoothDevice device : pairedDevices) { // Add the name and address to an array adapter to show in a ListView mArrayAdapter.add(device.getName() + ":" + device.getAddress()); } list.setAdapter(mArrayAdapter); } } else { finish(); } } } } |
效果图如下:
希望本文所述对大家的Android程序设计有所帮助。
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