自动连接使用的是SharedPreferences这个来解决。
private void Automaticconnection() {
SharedPreferences sp = getSharedPreferences("Dizhi", MODE_PRIVATE);
String address = sp.getString("address", "");
if (!address.equals("")) {
pro = new ProgressDialog(SetActivity.this);
pro.setMessage("正在连接设备...");
pro.show();
BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
mChatService.connect(device);
}
}第一次保存空字符串,也就是没有值，需要你先连接设备后才能保存！这里保存的值是设备地址EXTRA_DEVICE_ADDRESS。
上面代码就是出现一个对话框，等连接成功了对话框就消失。
其次是在onActivityResult方法中的处理：
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_CONNECT_DEVICE:
if (resultCode == Activity.RESULT_OK) {
pro = new ProgressDialog(SetActivity.this);
pro.setMessage("正在连接设备...");
pro.show();
String address = data.getExtras().getString(
DeviceListActivity.EXTRA_DEVICE_ADDRESS);
SharedPreferences sp = getSharedPreferences("Dizhi",
MODE_PRIVATE);
String addresscompare = sp.getString("address", "");
if (Uitils.isConnect) {
if (addresscompare.equals(address)) {
Toast.makeText(getApplicationContext(), "已经连接了设备",
Toast.LENGTH_SHORT).show();
pro.dismiss();
}
} else {
Editor editor = sp.edit();
editor.putString("address", address);
mit();
BluetoothDevice device = mBluetoothAdapter
.getRemoteDevice(address);
mChatService.connect(device);
System.out.println("mChatService.connect(device)");
}
}
break;
case REQUEST_ENABLE_BT:
if (resultCode != Activity.RESULT_OK) {
Toast.makeText(this, R.string.blutooth_unopen,
Toast.LENGTH_SHORT).show();
finish();
}
break;
}
super.onActivityResult(requestCode, resultCode, data);
}
先显示对话框,然后读取地址来保存。保存结束后调用mChatService.connect(device);连接设备。
至于对话框的关闭，因为在使用bluetoothchat的时候，你需要使用一个handler来接受消息，你可以在接受到连接成功的消息后来关闭对话框。
