AddUserActivity.java

/*
 *  Copyright (C) 2015-2017 Stichting Akvo (Akvo Foundation)
 *
 *  This file is part of Akvo Flow.
 *
 *  Akvo Flow is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Akvo Flow is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Akvo Flow.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.akvo.flow.activity;

import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.TextView;

import org.akvo.flow.R;
import org.akvo.flow.app.FlowApp;
import org.akvo.flow.data.database.SurveyDbAdapter;
import org.akvo.flow.domain.User;
import org.akvo.flow.data.preference.Prefs;

public class AddUserActivity extends Activity implements TextWatcher, TextView.OnEditorActionListener {

    private View mNextBt;
    private EditText mName;
    private EditText mID;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.add_user_activity);

        mName = (EditText) findViewById(R.id.username);
        mID = (EditText) findViewById(R.id.device_id);
        mNextBt = findViewById(R.id.login_btn);

        // Ensure the username is not left blank
        mNextBt.setEnabled(false);
        mName.addTextChangedListener(this);
        mID.addTextChangedListener(this);
        mID.setOnEditorActionListener(this);

        mNextBt.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                saveUserData();
            }
        });
    }

    //TODO: database operations should be done on separate thread
    private void saveUserData() {
        String username = mName.getText().toString().trim();
        String deviceId = mID.getText().toString().trim();
        SurveyDbAdapter db = new SurveyDbAdapter(AddUserActivity.this).open();
        long uid = db.createOrUpdateUser(null, username);
        db.close();
        Prefs prefs = new Prefs(getApplicationContext());
        prefs.setString(Prefs.KEY_DEVICE_IDENTIFIER, deviceId);

        // Select the newly created user, and exit the Activity
        FlowApp.getApp().setUser(new User(uid, username));
        setResult(RESULT_OK);
        finish();
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
    }

    @Override
    public void afterTextChanged(Editable s) {
        boolean valid = !TextUtils.isEmpty(mName.getText()) && !TextUtils.isEmpty(mID.getText());
        mNextBt.setEnabled(valid);
    }

    @Override
    public boolean onEditorAction(TextView textView, int actionId, KeyEvent keyEvent) {
        if (actionId == EditorInfo.IME_ACTION_DONE) {
            saveUserData();
            return true;
        }
        return false;
    }
}