我在我的 android 项目中复制了蓝牙代码,但它显示无法解析到字段的错误
I copied the bluetooth code in my android project but it is showing error that cannot be resolved to a field
我在我的 android 项目中复制了蓝牙代码,但它显示无法解析到字段的错误:
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.option_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Intent serverIntent = null;
switch (item.getItemId()) {
case R.id.connect_scan:
// Launch the DeviceListActivity to see devices and do scan
serverIntent = new Intent(this, DeviceListActivity.class);
startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
return true;
case R.id.discoverable:
// Ensure this device is discoverable by others
ensureDiscoverable();
return true;
}
return false;
}
它向您显示该错误,因为
- 您可能忘记复制 option_menu.xml 或没有正确复制
- 您需要重建项目
我在我的 android 项目中复制了蓝牙代码,但它显示无法解析到字段的错误:
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.option_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Intent serverIntent = null;
switch (item.getItemId()) {
case R.id.connect_scan:
// Launch the DeviceListActivity to see devices and do scan
serverIntent = new Intent(this, DeviceListActivity.class);
startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
return true;
case R.id.discoverable:
// Ensure this device is discoverable by others
ensureDiscoverable();
return true;
}
return false;
}
它向您显示该错误,因为
- 您可能忘记复制 option_menu.xml 或没有正确复制
- 您需要重建项目