CharacteristicListFragment.java

package com.clj.blesample.tool.operation;


import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattService;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.AlertDialog;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import com.clj.blesample.R;
import com.clj.blesample.tool.BluetoothService;

import java.util.ArrayList;
import java.util.List;

public class CharacteristicListFragment extends Fragment {

    private ResultAdapter mResultAdapter;

    private BluetoothService mBluetoothService;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mBluetoothService = ((OperationActivity) getActivity()).getBluetoothService();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_characteric_list, null);
        initView(v);
        return v;
    }

    private void initView(View v) {
        mResultAdapter = new ResultAdapter(getActivity());
        ListView listView_device = (ListView) v.findViewById(R.id.list_service);
        listView_device.setAdapter(mResultAdapter);
        listView_device.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                final BluetoothGattCharacteristic characteristic = mResultAdapter.getItem(position);
                final List<Integer> propList = new ArrayList<>();
                List<String> propNameList = new ArrayList<>();
                int charaProp = characteristic.getProperties();
                if ((charaProp & BluetoothGattCharacteristic.PROPERTY_READ) > 0) {
                    propList.add(CharacteristicOperationFragment.PROPERTY_READ);
                    propNameList.add("Read");
                }
                if ((charaProp & BluetoothGattCharacteristic.PROPERTY_WRITE) > 0) {
                    propList.add(CharacteristicOperationFragment.PROPERTY_WRITE);
                    propNameList.add("Write");
                }
                if ((charaProp & BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE) > 0) {
                    propList.add(CharacteristicOperationFragment.PROPERTY_WRITE_NO_RESPONSE);
                    propNameList.add("Write No Response");
                }
                if ((charaProp & BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
                    propList.add(CharacteristicOperationFragment.PROPERTY_NOTIFY);
                    propNameList.add("Notify");
                }
                if ((charaProp & BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0) {
                    propList.add(CharacteristicOperationFragment.PROPERTY_INDICATE);
                    propNameList.add("Indicate");
                }

                if (propList.size() > 1) {
                    new AlertDialog.Builder(getActivity())
                            .setTitle("选择操作类型")
                            .setItems(propNameList.toArray(new String[propNameList.size()]), new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    mBluetoothService.setCharacteristic(characteristic);
                                    mBluetoothService.setCharaProp(propList.get(which));
                                    ((OperationActivity) getActivity()).changePage(2);
                                }
                            })
                            .show();
                } else if (propList.size() > 0) {
                    mBluetoothService.setCharaProp(propList.get(0));
                    mBluetoothService.setCharacteristic(characteristic);
                    ((OperationActivity) getActivity()).changePage(2);
                }
            }
        });
    }

    public void showData() {
        BluetoothGattService service = mBluetoothService.getService();
        mResultAdapter.clear();
        for (BluetoothGattCharacteristic characteristic : service.getCharacteristics()) {
            mResultAdapter.addResult(characteristic);
        }
        mResultAdapter.notifyDataSetChanged();
    }

    private class ResultAdapter extends BaseAdapter {

        private Context context;
        private List<BluetoothGattCharacteristic> characteristicList;

        ResultAdapter(Context context) {
            this.context = context;
            characteristicList = new ArrayList<>();
        }

        public void addResult(BluetoothGattCharacteristic characteristic) {
            characteristicList.add(characteristic);
        }

        public void clear() {
            characteristicList.clear();
        }

        @Override
        public int getCount() {
            return characteristicList.size();
        }

        @Override
        public BluetoothGattCharacteristic getItem(int position) {
            if (position > characteristicList.size())
                return null;
            return characteristicList.get(position);
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;
            if (convertView != null) {
                holder = (ViewHolder) convertView.getTag();
            } else {
                convertView = View.inflate(context, R.layout.adapter_service, null);
                holder = new ViewHolder();
                convertView.setTag(holder);
                holder.txt_title = (TextView) convertView.findViewById(R.id.txt_title);
                holder.txt_uuid = (TextView) convertView.findViewById(R.id.txt_uuid);
                holder.txt_type = (TextView) convertView.findViewById(R.id.txt_type);
                holder.img_next = (ImageView) convertView.findViewById(R.id.img_next);
            }

            BluetoothGattCharacteristic characteristic = characteristicList.get(position);
            String uuid = characteristic.getUuid().toString();

            holder.txt_title.setText(String.valueOf("特征" + "（" + position + ")"));
            holder.txt_uuid.setText(uuid);

            StringBuilder property = new StringBuilder();
            int charaProp = characteristic.getProperties();
            if ((charaProp & BluetoothGattCharacteristic.PROPERTY_READ) > 0) {
                property.append("Read");
                property.append(" , ");
            }
            if ((charaProp & BluetoothGattCharacteristic.PROPERTY_WRITE) > 0) {
                property.append("Write");
                property.append(" , ");
            }
            if ((charaProp & BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE) > 0) {
                property.append("Write No Response");
                property.append(" , ");
            }
            if ((charaProp & BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
                property.append("Notify");
                property.append(" , ");
            }
            if ((charaProp & BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0) {
                property.append("Indicate");
                property.append(" , ");
            }
            if (property.length() > 1) {
                property.delete(property.length() - 2, property.length() - 1);
            }
            if (property.length() > 0) {
                holder.txt_type.setText(String.valueOf("特性" + "( " + property.toString() + ")"));
                holder.img_next.setVisibility(View.VISIBLE);
            } else {
                holder.img_next.setVisibility(View.INVISIBLE);
            }

            return convertView;
        }

        class ViewHolder {
            TextView txt_title;
            TextView txt_uuid;
            TextView txt_type;
            ImageView img_next;
        }
    }
}