Android Open Source - passwords-by-harry Login Activity

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License

The source code is released under:
Apache License
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Java Source Code

/*
 * Copyright (c) 2013. Harry Henry Gebel
 *//ww  w . j a v  a  2  s . c  o  m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.github.harryfrommarydelde.passwordsbyharry;

import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.Editable;
import android.text.InputType;
import android.text.TextWatcher;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;

public class LoginActivity extends DataServiceConnectedActivity {
    private Button doneButton;
    private EditText passwordText;
    private CheckBox showPasswordCheck;

    protected void localOnServiceConnected(DataService.DataBinder dataBinder) {
        // if there is no encrypted data, get a new master password
        if (!dataBinder.dataExists()) {
            startActivity(new Intent(LoginActivity.this, ChangeMasterPasswordActivity.class));
            finish();
        }
    }

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

        doneButton = (Button) findViewById(R.id.doneButton);
        passwordText = (EditText) findViewById(R.id.passwordText);
        showPasswordCheck = (CheckBox) findViewById(R.id.showPasswordCheck);

        // set enabled state of done button
        passwordText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
            }

            // Only enable done button when a password is present
            @Override
            public void afterTextChanged(Editable s) {
                if (s.length() == 0) {
                    doneButton.setEnabled(false);
                } else {
                    doneButton.setEnabled(true);
                }
            }
        });

        // see if user wants master password shown
        showPasswordCheck.setChecked(settings.getBoolean("show_master_password", false));
        showPassword(showPasswordCheck);
    }

    // Make sure changes in settings are maintained in activity
    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
        if (key.equals("show_master_password")) {
            showPasswordCheck.setChecked(sharedPreferences.getBoolean("show_master_password", false));
            showPassword(showPasswordCheck);
        }
    }

    public void checkPassword(View view) {
        if (passwordText.length() > 0) {
            passwordText.setText("");
        }
    }

    // respond to "Show password" checkbox
    public void showPassword(View view) {
        if (((CheckBox) view).isChecked()) {
            passwordText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
        } else
        {
            passwordText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
        }
    }
}
Java Source Code List
