android/caddipictureupload/LoginActivity.java

package com.caddi.android.caddipictureupload;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.ContentResolver;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build.VERSION;
import android.os.Build;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.caddi.android.caddipictureupload.util.MyTransformation;

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


/**
 * A login screen that offers login via email/password.
 */
public class LoginActivity extends Activity  {

    public final static boolean DEBUG = true;

    /**
     * Keep track of the login task to ensure we can cancel it if requested.
     */
    private UserLoginTask mAuthTask = null;

    // UI references.
    private AutoCompleteTextView mEmailView;
    private EditText mCaddiView;
    private EditText mUserView;
    private EditText mPasswordView;
    private View mProgressView;
    private View mLoginFormView;

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


        mCaddiView = (EditText) findViewById( R.id.login_caddiID);
        mUserView = (EditText) findViewById( R.id.login_username);

        mPasswordView = (EditText) findViewById(R.id.password);
        mPasswordView.setTransformationMethod( new MyTransformation() );


        Button loginButton = (Button) findViewById(R.id.email_sign_in_button);
        loginButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                attemptLogin();
            }
        });

        mLoginFormView = findViewById(R.id.login_form);
        mProgressView = findViewById(R.id.login_progress);


        if (DEBUG) {
            mCaddiView.setText("fysklik");
            mUserView.setText("thoerup");
            mPasswordView.setText("pwhoerup");
        }
    }


    /**
     * Attempts to sign in or register the account specified by the login form.
     * If there are form errors (invalid email, missing fields, etc.), the
     * errors are presented and no actual login attempt is made.
     */
    public void attemptLogin() {
        if (mAuthTask != null) {
            return;
        }

        // Reset errors.
        mCaddiView.setError(null);
        mUserView.setError(null);
        mPasswordView.setError(null);


        // Store values at the time of the login attempt.
        String caddiID = mCaddiView.getText().toString();
        String user = mUserView.getText().toString();
        String password = mPasswordView.getText().toString();

        boolean cancel = false;
        View focusView = null;

        if (TextUtils.isEmpty(caddiID) ) {
            mCaddiView.setError( "Du skal angive Caddi ID" );
            focusView = mCaddiView;
            cancel = true;
        }

        if (TextUtils.isEmpty(user) ) {
            mUserView.setError( "Du skal angive brugernavn" );
            focusView = mUserView;
            cancel = true;
        }

        // Check for a valid password, if the user entered one.
        if (TextUtils.isEmpty(password) ) {
            mPasswordView.setError("Du skal angive password");
            focusView = mPasswordView;
            cancel = true;
        }


        if (cancel) {
            // There was an error; don't attempt login and focus the first
            // form field with an error.
            focusView.requestFocus();
        } else {
            // Show a progress spinner, and kick off a background task to
            // perform the user login attempt.
            showProgress(true);
            mAuthTask = new UserLoginTask(caddiID, user, password);
            mAuthTask.execute((Void) null);
        }
    }


    private boolean isPasswordValid(String password) {
        //TODO: Replace this with your own logic
        return password.length() >= 4;
    }

    /**
     * Shows the progress UI and hides the login form.
     */
    @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
    public void showProgress(final boolean show) {
        // On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
        // for very easy animations. If available, use these APIs to fade-in
        // the progress spinner.
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
            int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);

            mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
            mLoginFormView.animate().setDuration(shortAnimTime).alpha(
                    show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
                }
            });

            mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
            mProgressView.animate().setDuration(shortAnimTime).alpha(
                    show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
                }
            });
        } else {
            // The ViewPropertyAnimator APIs are not available, so simply show
            // and hide the relevant UI components.
            mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
            mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
    }

    /**
     * Represents an asynchronous login/registration task used to authenticate
     * the user.
     */
    public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {

        private final String mCaddiID;
        private final String mUsername;
        private final String mPassword;

        private String mError;

        UserLoginTask(String caddiID, String username, String password) {
            mCaddiID = caddiID;
            mUsername = username;
            mPassword = password;
        }

        @Override
        protected Boolean doInBackground(Void... params) {
            // TODO: attempt authentication against a network service.

            try {
                return WebserviceWrapper.login(mCaddiID, mUsername, mPassword);
            } catch (Exception e) {
                mError = e.getMessage();
                return false;
            }

        }

        @Override
        protected void onPostExecute(final Boolean success) {
            mAuthTask = null;
            showProgress(false);

            if (success) {

                mPasswordView.setText("");//Clear password before launching menu

                Intent intent = new Intent(LoginActivity.this, MenuActivity.class);
                startActivity(intent);

            } else {
                mPasswordView.setError(mError);
                mPasswordView.requestFocus();
            }
        }

        @Override
        protected void onCancelled() {
            mAuthTask = null;
            showProgress(false);
        }
    }
}
1	package com.caddi.android.caddipictureupload;
2
3	import android.animation.Animator;
4	import android.animation.AnimatorListenerAdapter;
5	import android.annotation.TargetApi;
6	import android.app.Activity;
7	import android.app.LoaderManager.LoaderCallbacks;
8	import android.content.ContentResolver;
9	import android.content.CursorLoader;
10	import android.content.Intent;
11	import android.content.Loader;
12	import android.database.Cursor;
13	import android.net.Uri;
14	import android.os.AsyncTask;
15	import android.os.Build.VERSION;
16	import android.os.Build;
17	import android.os.Bundle;
18	import android.provider.ContactsContract;
19	import android.text.TextUtils;
20	import android.util.Log;
21	import android.view.KeyEvent;
22	import android.view.View;
23	import android.view.View.OnClickListener;
24	import android.view.inputmethod.EditorInfo;
25	import android.widget.ArrayAdapter;
26	import android.widget.AutoCompleteTextView;
27	import android.widget.Button;
28	import android.widget.EditText;
29	import android.widget.TextView;
30
31	import com.caddi.android.caddipictureupload.util.MyTransformation;
32
33	import java.util.ArrayList;
34	import java.util.List;
35
36
37	/**
38	* A login screen that offers login via email/password.
39	*/
40	public class LoginActivity extends Activity {
41
42	public final static boolean DEBUG = true;
43
44	/**
45	* Keep track of the login task to ensure we can cancel it if requested.
46	*/
47	private UserLoginTask mAuthTask = null;
48
49	// UI references.
50	private AutoCompleteTextView mEmailView;
51	private EditText mCaddiView;
52	private EditText mUserView;
53	private EditText mPasswordView;
54	private View mProgressView;
55	private View mLoginFormView;
56
57	@Override
58	protected void onCreate(Bundle savedInstanceState) {
59	super.onCreate(savedInstanceState);
60	setContentView(R.layout.activity_login);
61
62
63	mCaddiView = (EditText) findViewById( R.id.login_caddiID);
64	mUserView = (EditText) findViewById( R.id.login_username);
65
66	mPasswordView = (EditText) findViewById(R.id.password);
67	mPasswordView.setTransformationMethod( new MyTransformation() );
68
69
70	Button loginButton = (Button) findViewById(R.id.email_sign_in_button);
71	loginButton.setOnClickListener(new OnClickListener() {
72	@Override
73	public void onClick(View view) {
74	attemptLogin();
75	}
76	});
77
78	mLoginFormView = findViewById(R.id.login_form);
79	mProgressView = findViewById(R.id.login_progress);
80
81
82	if (DEBUG) {
83	mCaddiView.setText("fysklik");
84	mUserView.setText("thoerup");
85	mPasswordView.setText("pwhoerup");
86	}
87	}
88
89
90
91	/**
92	* Attempts to sign in or register the account specified by the login form.
93	* If there are form errors (invalid email, missing fields, etc.), the
94	* errors are presented and no actual login attempt is made.
95	*/
96	public void attemptLogin() {
97	if (mAuthTask != null) {
98	return;
99	}
100
101	// Reset errors.
102	mCaddiView.setError(null);
103	mUserView.setError(null);
104	mPasswordView.setError(null);
105
106
107	// Store values at the time of the login attempt.
108	String caddiID = mCaddiView.getText().toString();
109	String user = mUserView.getText().toString();
110	String password = mPasswordView.getText().toString();
111
112	boolean cancel = false;
113	View focusView = null;
114
115	if (TextUtils.isEmpty(caddiID) ) {
116	mCaddiView.setError( "Du skal angive Caddi ID" );
117	focusView = mCaddiView;
118	cancel = true;
119	}
120
121	if (TextUtils.isEmpty(user) ) {
122	mUserView.setError( "Du skal angive brugernavn" );
123	focusView = mUserView;
124	cancel = true;
125	}
126
127	// Check for a valid password, if the user entered one.
128	if (TextUtils.isEmpty(password) ) {
129	mPasswordView.setError("Du skal angive password");
130	focusView = mPasswordView;
131	cancel = true;
132	}
133
134
135	if (cancel) {
136	// There was an error; don't attempt login and focus the first
137	// form field with an error.
138	focusView.requestFocus();
139	} else {
140	// Show a progress spinner, and kick off a background task to
141	// perform the user login attempt.
142	showProgress(true);
143	mAuthTask = new UserLoginTask(caddiID, user, password);
144	mAuthTask.execute((Void) null);
145	}
146	}
147
148
149	private boolean isPasswordValid(String password) {
150	//TODO: Replace this with your own logic
151	return password.length() >= 4;
152	}
153
154	/**
155	* Shows the progress UI and hides the login form.
156	*/
157	@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
158	public void showProgress(final boolean show) {
159	// On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
160	// for very easy animations. If available, use these APIs to fade-in
161	// the progress spinner.
162	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
163	int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
164
165	mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
166	mLoginFormView.animate().setDuration(shortAnimTime).alpha(
167	show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
168	@Override
169	public void onAnimationEnd(Animator animation) {
170	mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
171	}
172	});
173
174	mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
175	mProgressView.animate().setDuration(shortAnimTime).alpha(
176	show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
177	@Override
178	public void onAnimationEnd(Animator animation) {
179	mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
180	}
181	});
182	} else {
183	// The ViewPropertyAnimator APIs are not available, so simply show
184	// and hide the relevant UI components.
185	mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
186	mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
187	}
188	}
189
190	@Override
191	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
192	super.onActivityResult(requestCode, resultCode, data);
193	}
194
195	/**
196	* Represents an asynchronous login/registration task used to authenticate
197	* the user.
198	*/
199	public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
200
201	private final String mCaddiID;
202	private final String mUsername;
203	private final String mPassword;
204
205	private String mError;
206
207	UserLoginTask(String caddiID, String username, String password) {
208	mCaddiID = caddiID;
209	mUsername = username;
210	mPassword = password;
211	}
212
213	@Override
214	protected Boolean doInBackground(Void... params) {
215	// TODO: attempt authentication against a network service.
216
217	try {
218	return WebserviceWrapper.login(mCaddiID, mUsername, mPassword);
219	} catch (Exception e) {
220	mError = e.getMessage();
221	return false;
222	}
223
224	}
225
226	@Override
227	protected void onPostExecute(final Boolean success) {
228	mAuthTask = null;
229	showProgress(false);
230
231	if (success) {
232
233	mPasswordView.setText("");//Clear password before launching menu
234
235	Intent intent = new Intent(LoginActivity.this, MenuActivity.class);
236	startActivity(intent);
237
238	} else {
239	mPasswordView.setError(mError);
240	mPasswordView.requestFocus();
241	}
242	}
243
244	@Override
245	protected void onCancelled() {
246	mAuthTask = null;
247	showProgress(false);
248	}
249	}
250	}