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package com.estimote.examples.demos; /*from w w w. j a v a2s . c o m*/ import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; import com.estimote.sdk.Beacon; import com.estimote.sdk.Utils; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.Comparator; /** * Displays basic information about beacon. * * @author wiktor@estimote.com (Wiktor Gworek) */ public class LeDeviceListAdapter extends BaseAdapter { private ArrayList<Beacon> beacons; private LayoutInflater inflater; public LeDeviceListAdapter(Context context) { this.inflater = LayoutInflater.from(context); this.beacons = new ArrayList<Beacon>(); } public void replaceWith(Collection<Beacon> newBeacons) { this.beacons.clear(); this.beacons.addAll(newBeacons); notifyDataSetChanged(); } @Override public int getCount() { return beacons.size(); } @Override public Beacon getItem(int position) { return beacons.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View view, ViewGroup parent) { view = inflateIfRequired(view, position, parent); bind(getItem(position), view); return view; } private void bind(Beacon beacon, View view) { ViewHolder holder = (ViewHolder) view.getTag(); holder.macTextView.setText(String.format("MAC: %s (%.2fm)", beacon.getMacAddress(), Utils.computeAccuracy(beacon))); holder.majorTextView.setText("Major: " + beacon.getMajor()); holder.minorTextView.setText("Minor: " + beacon.getMinor()); holder.measuredPowerTextView.setText("MPower: " + beacon.getMeasuredPower()); holder.rssiTextView.setText("RSSI: " + beacon.getRssi()); } private View inflateIfRequired(View view, int position, ViewGroup parent) { if (view == null) { view = inflater.inflate(R.layout.device_item, null); view.setTag(new ViewHolder(view)); } return view; } static class ViewHolder { final TextView macTextView; final TextView majorTextView; final TextView minorTextView; final TextView measuredPowerTextView; final TextView rssiTextView; ViewHolder(View view) { macTextView = (TextView) view.findViewWithTag("mac"); majorTextView = (TextView) view.findViewWithTag("major"); minorTextView = (TextView) view.findViewWithTag("minor"); measuredPowerTextView = (TextView) view.findViewWithTag("mpower"); rssiTextView = (TextView) view.findViewWithTag("rssi"); } } }