RFID掃描APP--source3

第三部分：
3. SettingActivity

public class SettingActivity extends AppCompatActivity {

    // setting 參數設置map key
    public static final String POWER = "power";
    public static final String URL = "url";
    public static final String VEHICLE_ID = "vehicle_id";
    public static final String VEHICLE_TYPE = "vehicle_type";
    public static final String ACTION = "action";
    public static final String FIRST = "first";

    // EPC map key
    public static final String EPC = "epc";

    // action 模式
    public static final String ACTION_LOAD = "load";
    public static final String ACTION_UNLOAD = "unload";

    // Vehicle type
    public static final String TYPE_CAR = "car";
    public static final String TYPE_TRAN = "tran";
    public static final String TYPE_PLANE = "plane";

    // power range
    public static final int MAXPOWER = 26;
    public static final int MINPOWER = 16;

    // default value
    public static final String DEFAULT_URL = "http://idart311.ticp.net/traffic.php";
    public static final String DEFAULT_VEHICLE_ID = "1";

    // power 顯示字符串
    public static final String POWER_TEXT = "POWER(db) : ";

    // 實例域
    private TextView mPowerText;                // power文字描述顯示控件
    private SeekBar mSeekBar;                   // 調節power控件
    private EditText mURL;                      // url編輯區
    private Button mOkButton;                   // 確定按鈕
    private Button mCancelButton;               // 取消按鈕
    private EditText mVehicleID;                // vehicle_id編輯區
    private RadioGroup mActionRadioGroup;       // action選擇區
    private RadioGroup mVehicleRadioGroup;      // vehicle_type選擇區

    private String mType = "";                  // 存儲vehicel_type的更改
    private String mAction = "";                // 存儲Action的更改

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_setting);

        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());

        //ActionBar設置
        Toolbar toolbar = (Toolbar) findViewById(R.id.setting_toolbar);
        toolbar.setNavigationIcon(android.R.drawable.ic_dialog_dialer);
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
        setSupportActionBar(toolbar);

        //power setting
        mPowerText = (TextView)findViewById(R.id.powerset_text);
        int v = sp.getInt(POWER, MAXPOWER);
        mPowerText.setText(POWER_TEXT + v);
        mSeekBar = (SeekBar)findViewById(R.id.powerset_seekbar);
        mSeekBar.setProgress(v - MINPOWER);
        mSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                int n = seekBar.getProgress() + 16;
                mPowerText.setText("POWER(dBm) : " + n);
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
            }
        });

        //URL
        mURL = (EditText)findViewById(R.id.urlset_edit);
        String s = sp.getString(URL, "");
        mURL.setText(s);

        //Vehicle_id
        mVehicleID = (EditText)findViewById(R.id.vehicle_edit);
        String ves = sp.getString(VEHICLE_ID, "");
        mVehicleID.setText(ves);

        //Vehicle_type
        mVehicleRadioGroup = (RadioGroup)findViewById(R.id.vehicle_type_radiogroup);
        String vts = sp.getString(VEHICLE_TYPE, "");
        switch (vts) {
            case TYPE_CAR :
                mVehicleRadioGroup.check(R.id.type_car);
                break;
            case TYPE_TRAN:
                mVehicleRadioGroup.check(R.id.type_tran);
                break;
            case TYPE_PLANE :
                mVehicleRadioGroup.check(R.id.type_plane);
                break;
            default:
                break;
        }
        mVehicleRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                switch(checkedId) {
                    case R.id.type_car :
                        mType = TYPE_CAR;
                        break;
                    case R.id.type_tran :
                        mType = TYPE_TRAN;
                        break;
                    case R.id.type_plane :
                        mType = TYPE_PLANE;
                        break;
                    default:
                        break;
                }
            }
        });

        //action
        mActionRadioGroup = (RadioGroup)findViewById(R.id.action_radiogroup);
        String as = sp.getString(ACTION, "");
        switch (as) {
            case ACTION_LOAD:
                mActionRadioGroup.check(R.id.action_load);
                break;
            case ACTION_UNLOAD:
                mActionRadioGroup.check(R.id.action_unload);
                break;
            default:
                break;
        }
        mActionRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                if (checkedId == R.id.action_load) {
                    mAction = ACTION_LOAD;
                } else if(checkedId == R.id.action_unload) {
                    mAction = ACTION_UNLOAD;
                }
            }
        });

        //Button
        mOkButton = (Button)findViewById(R.id.setting_ok_button);
        mOkButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                SharedPreferences sharedpre = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
                int power_edit = mSeekBar.getProgress() + MINPOWER;
                String url_edit = mURL.getText().toString().trim();
                String vehicle_id_edit = mVehicleID.getText().toString().trim();
                String vehicle_type_edit = mType;
                String action_edit = mAction;
                sharedpre.edit()
                        .putInt(POWER, power_edit)
                        .putString(URL, url_edit)
                        .putString(VEHICLE_ID, vehicle_id_edit)
                        .putString(FIRST, FIRST)
                        .commit();
                // 若mType不爲空。則已改變
                if (!vehicle_type_edit.equals("")) {
                    sharedpre.edit()
                            .putString(VEHICLE_TYPE, vehicle_type_edit)
                            .commit();
                }
                // 若mAction不爲空。則已改變
                if (!action_edit.equals("")) {
                    sharedpre.edit()
                            .putString(ACTION, action_edit)
                            .commit();
                }

                // 啓動connectactivity，重新連接
                Intent i = new Intent(SettingActivity.this, ConnectActivity.class);
                startActivity(i);
                // 銷燬之前的mainActivity和此settingactivity
                ActivityArray.getActivityArray(getApplicationContext()).getArray().get(0).finish();
                ActivityArray.getActivityArray(getApplicationContext()).getArray().remove(0);
                finish();
            }
        });
        mCancelButton = (Button)findViewById(R.id.setting_cancel_button);
        mCancelButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            // 向上按鈕的監聽
            case android.R.id.home :
                finish();
                break;
            default:
                break;
        }
        return true;
    }
}