Java tutorial
/* * Firetweet - Twitter client for Android * * Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com> * * This program 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. * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ package org.getlantern.firetweet.activity.support; import android.content.Context; import android.content.Intent; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.DialogFragment; import android.support.v4.app.Fragment; import android.support.v4.app.LoaderManager; import android.support.v4.app.LoaderManager.LoaderCallbacks; import android.support.v4.content.Loader; import android.support.v7.widget.Toolbar; import android.text.Editable; import android.text.TextWatcher; import android.view.View; import android.view.View.OnClickListener; import android.widget.EditText; import android.widget.ImageView; import android.widget.Toast; import org.getlantern.firetweet.R; import org.getlantern.firetweet.app.FiretweetApplication; import org.getlantern.firetweet.fragment.support.SupportProgressDialogFragment; import org.getlantern.firetweet.loader.support.ParcelableUserLoader; import org.getlantern.firetweet.model.ParcelableUser; import org.getlantern.firetweet.model.SingleResponse; import org.getlantern.firetweet.util.AsyncTaskManager; import org.getlantern.firetweet.util.AsyncTaskUtils; import org.getlantern.firetweet.util.AsyncTwitterWrapper.UpdateProfileBannerImageTask; import org.getlantern.firetweet.util.AsyncTwitterWrapper.UpdateProfileImageTask; import org.getlantern.firetweet.util.MediaLoaderWrapper; import org.getlantern.firetweet.util.ParseUtils; import org.getlantern.firetweet.util.ThemeUtils; import org.getlantern.firetweet.util.TwitterWrapper; import org.getlantern.firetweet.util.accessor.ViewAccessor; import org.getlantern.firetweet.view.ForegroundColorView; import org.getlantern.firetweet.view.iface.IExtendedView.OnSizeChangedListener; import java.io.File; import twitter4j.Twitter; import twitter4j.TwitterException; import twitter4j.User; import static android.text.TextUtils.isEmpty; import static org.getlantern.firetweet.util.Utils.createPickImageIntent; import static org.getlantern.firetweet.util.Utils.createTakePhotoIntent; import static org.getlantern.firetweet.util.Utils.getTwitterInstance; import static org.getlantern.firetweet.util.Utils.isMyAccount; import static org.getlantern.firetweet.util.Utils.showErrorMessage; public class UserProfileEditorActivity extends BaseActionBarActivity implements OnSizeChangedListener, TextWatcher, OnClickListener, LoaderCallbacks<SingleResponse<ParcelableUser>> { private static final int LOADER_ID_USER = 1; private static final int REQUEST_UPLOAD_PROFILE_IMAGE = 1; private static final int REQUEST_UPLOAD_PROFILE_BANNER_IMAGE = 2; private static final int REQUEST_PICK_LINK_COLOR = 3; private static final int REQUEST_PICK_BACKGROUND_COLOR = 4; private MediaLoaderWrapper mLazyImageLoader; private AsyncTaskManager mAsyncTaskManager; private AsyncTask<Object, Object, ?> mTask; private ImageView mProfileImageView; private ImageView mProfileBannerView; private EditText mEditName, mEditDescription, mEditLocation, mEditUrl; private View mProgressContainer, mContent; private View mProfileImageCamera, mProfileImageGallery; private View mProfileBannerGallery, mProfileBannerRemove; private View mActionBarOverlay; private View mCancelButton, mDoneButton; private View mSetLinkColor, mSetBackgroundColor; private ForegroundColorView mLinkColor, mBackgroundColor; private long mAccountId; private ParcelableUser mUser; private boolean mUserInfoLoaderInitialized; private boolean mGetUserInfoCalled; private Toolbar mToolbar; @Override public void beforeTextChanged(final CharSequence s, final int length, final int start, final int end) { } @Override public void onTextChanged(final CharSequence s, final int length, final int start, final int end) { updateDoneButton(); } @Override public void afterTextChanged(final Editable s) { } @Override public int getThemeResourceId() { return ThemeUtils.getNoActionBarThemeResource(this); } @Override protected void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Intent intent = getIntent(); final long accountId = intent.getLongExtra(EXTRA_ACCOUNT_ID, -1); if (!isMyAccount(this, accountId)) { finish(); return; } mAsyncTaskManager = FiretweetApplication.getInstance(this).getAsyncTaskManager(); mLazyImageLoader = FiretweetApplication.getInstance(this).getMediaLoaderWrapper(); mAccountId = accountId; setContentView(R.layout.activity_user_profile_editor); setSupportActionBar(mToolbar); ViewAccessor.setBackground(mActionBarOverlay, ThemeUtils.getWindowContentOverlay(this)); ViewAccessor.setBackground(mToolbar, ThemeUtils.getActionBarBackground(mToolbar.getContext(), getCurrentThemeResourceId())); // setOverrideExitAniamtion(false); mEditName.addTextChangedListener(this); mEditDescription.addTextChangedListener(this); mEditLocation.addTextChangedListener(this); mEditUrl.addTextChangedListener(this); mProfileImageView.setOnClickListener(this); mProfileBannerView.setOnClickListener(this); mProfileImageCamera.setOnClickListener(this); mProfileImageGallery.setOnClickListener(this); mProfileBannerGallery.setOnClickListener(this); mProfileBannerRemove.setOnClickListener(this); mCancelButton.setOnClickListener(this); mDoneButton.setOnClickListener(this); mSetLinkColor.setOnClickListener(this); mSetBackgroundColor.setOnClickListener(this); if (savedInstanceState != null && savedInstanceState.getParcelable(EXTRA_USER) != null) { final ParcelableUser user = savedInstanceState.getParcelable(EXTRA_USER); displayUser(user); mEditName.setText(savedInstanceState.getString(EXTRA_NAME, user.name)); mEditLocation.setText(savedInstanceState.getString(EXTRA_LOCATION, user.location)); mEditDescription.setText(savedInstanceState.getString(EXTRA_DESCRIPTION, user.description_expanded)); mEditUrl.setText(savedInstanceState.getString(EXTRA_URL, user.url_expanded)); } else { getUserInfo(); } } @Override protected void onSaveInstanceState(final Bundle outState) { super.onSaveInstanceState(outState); outState.putParcelable(EXTRA_USER, mUser); outState.putString(EXTRA_NAME, ParseUtils.parseString(mEditName.getText())); outState.putString(EXTRA_DESCRIPTION, ParseUtils.parseString(mEditDescription.getText())); outState.putString(EXTRA_LOCATION, ParseUtils.parseString(mEditLocation.getText())); outState.putString(EXTRA_URL, ParseUtils.parseString(mEditUrl.getText())); } @Override protected void onStart() { super.onStart(); } @Override protected void onStop() { super.onStop(); } @Override public void onClick(final View view) { final ParcelableUser user = mUser; if (user == null || (mTask != null && mTask.getStatus() == AsyncTask.Status.RUNNING)) return; switch (view.getId()) { case R.id.profile_image: { break; } case R.id.profile_banner: { break; } case R.id.profile_image_camera: { final Uri uri = createTempFileUri(); final Intent intent = createTakePhotoIntent(uri, null, null, 1, 1, true); mTask = new UpdateProfileImageTaskInternal(this, mAsyncTaskManager, mAccountId, uri, true); startActivityForResult(intent, REQUEST_UPLOAD_PROFILE_IMAGE); break; } case R.id.profile_image_gallery: { final Uri uri = createTempFileUri(); final Intent intent = createPickImageIntent(uri, null, null, 1, 1, true); mTask = new UpdateProfileImageTaskInternal(this, mAsyncTaskManager, mAccountId, uri, true); startActivityForResult(intent, REQUEST_UPLOAD_PROFILE_IMAGE); break; } case R.id.profile_banner_gallery: { final Uri uri = createTempFileUri(); final Intent intent = createPickImageIntent(uri, null, null, 2, 1, true); mTask = new UpdateProfileBannerImageTaskInternal(this, mAsyncTaskManager, mAccountId, uri, true); startActivityForResult(intent, REQUEST_UPLOAD_PROFILE_BANNER_IMAGE); break; } case R.id.profile_banner_remove: { mTask = new RemoveProfileBannerTaskInternal(user.account_id); AsyncTaskUtils.executeTask(mTask); break; } case R.id.actionbar_cancel: { finish(); break; } case R.id.actionbar_done: { final String name = ParseUtils.parseString(mEditName.getText()); final String url = ParseUtils.parseString(mEditUrl.getText()); final String location = ParseUtils.parseString(mEditLocation.getText()); final String description = ParseUtils.parseString(mEditDescription.getText()); final int linkColor = mLinkColor.getColor(); final int backgroundColor = mBackgroundColor.getColor(); mTask = new UpdateProfileTaskInternal(this, mAccountId, mUser, name, url, location, description, linkColor, backgroundColor); AsyncTaskUtils.executeTask(mTask); break; } case R.id.set_link_color: { final Intent intent = new Intent(this, ColorPickerDialogActivity.class); intent.putExtra(EXTRA_COLOR, user.link_color); intent.putExtra(EXTRA_ALPHA_SLIDER, false); startActivityForResult(intent, REQUEST_PICK_LINK_COLOR); break; } case R.id.set_background_color: { final Intent intent = new Intent(this, ColorPickerDialogActivity.class); intent.putExtra(EXTRA_COLOR, user.background_color); intent.putExtra(EXTRA_ALPHA_SLIDER, false); startActivityForResult(intent, REQUEST_PICK_BACKGROUND_COLOR); break; } } } @Override public Loader<SingleResponse<ParcelableUser>> onCreateLoader(final int id, final Bundle args) { mProgressContainer.setVisibility(View.VISIBLE); mContent.setVisibility(View.GONE); return new ParcelableUserLoader(UserProfileEditorActivity.this, mAccountId, mAccountId, null, getIntent().getExtras(), false, false); } @Override public void onLoadFinished(final Loader<SingleResponse<ParcelableUser>> loader, final SingleResponse<ParcelableUser> data) { if (data.getData() != null && data.getData().id > 0) { displayUser(data.getData()); } else if (mUser == null) { finish(); } } @Override public void onLoaderReset(final Loader<SingleResponse<ParcelableUser>> loader) { } @Override public void onSizeChanged(final View view, final int w, final int h, final int oldw, final int oldh) { } @Override public void onSupportContentChanged() { super.onSupportContentChanged(); mToolbar = (Toolbar) findViewById(R.id.done_bar); mProgressContainer = findViewById(R.id.progress_container); mContent = findViewById(R.id.content); mProfileBannerView = (ImageView) findViewById(R.id.profile_banner); mProfileImageView = (ImageView) findViewById(R.id.profile_image); mEditName = (EditText) findViewById(R.id.name); mEditDescription = (EditText) findViewById(R.id.description); mEditLocation = (EditText) findViewById(R.id.location); mEditUrl = (EditText) findViewById(R.id.url); mActionBarOverlay = findViewById(R.id.actionbar_overlay); mProfileImageCamera = findViewById(R.id.profile_image_camera); mProfileImageGallery = findViewById(R.id.profile_image_gallery); mProfileBannerGallery = findViewById(R.id.profile_banner_gallery); mProfileBannerRemove = findViewById(R.id.profile_banner_remove); mLinkColor = (ForegroundColorView) findViewById(R.id.link_color); mBackgroundColor = (ForegroundColorView) findViewById(R.id.background_color); mCancelButton = findViewById(R.id.actionbar_cancel); mDoneButton = findViewById(R.id.actionbar_done); mSetLinkColor = findViewById(R.id.set_link_color); mSetBackgroundColor = findViewById(R.id.set_background_color); } @Override protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) { if (resultCode == RESULT_CANCELED) return; switch (requestCode) { case REQUEST_UPLOAD_PROFILE_BANNER_IMAGE: { if (mTask == null || mTask.getStatus() != AsyncTask.Status.PENDING) return; AsyncTaskUtils.executeTask(mTask); break; } case REQUEST_UPLOAD_PROFILE_IMAGE: { if (mTask == null || mTask.getStatus() != AsyncTask.Status.PENDING) return; AsyncTaskUtils.executeTask(mTask); break; } case REQUEST_PICK_LINK_COLOR: { if (resultCode == ColorPickerDialogActivity.RESULT_OK) { mLinkColor.setColor(data.getIntExtra(EXTRA_COLOR, 0)); updateDoneButton(); } break; } case REQUEST_PICK_BACKGROUND_COLOR: { if (resultCode == ColorPickerDialogActivity.RESULT_OK) { mBackgroundColor.setColor(data.getIntExtra(EXTRA_COLOR, 0)); updateDoneButton(); } break; } } } boolean isProfileChanged() { final ParcelableUser user = mUser; if (user == null) return true; if (!stringEquals(mEditName.getText(), user.name)) return true; if (!stringEquals(mEditDescription.getText(), user.description_expanded)) return true; if (!stringEquals(mEditLocation.getText(), user.location)) return true; if (!stringEquals(mEditUrl.getText(), isEmpty(user.url_expanded) ? user.url : user.url_expanded)) return true; if (mLinkColor.getColor() != user.link_color) return true; if (mBackgroundColor.getColor() != user.background_color) return true; return false; } private Uri createTempFileUri() { final File cache_dir = getExternalCacheDir(); final File file = new File(cache_dir, "tmp_image_" + System.currentTimeMillis()); return Uri.fromFile(file); } private void displayUser(final ParcelableUser user) { if (!mGetUserInfoCalled) return; mGetUserInfoCalled = false; mUser = user; if (user != null) { mProgressContainer.setVisibility(View.GONE); mContent.setVisibility(View.VISIBLE); mEditName.setText(user.name); mEditDescription.setText(user.description_expanded); mEditLocation.setText(user.location); mEditUrl.setText(isEmpty(user.url_expanded) ? user.url : user.url_expanded); mLazyImageLoader.displayProfileImage(mProfileImageView, user.profile_image_url); final int def_width = getResources().getDisplayMetrics().widthPixels; mLazyImageLoader.displayProfileBanner(mProfileBannerView, user.profile_banner_url, def_width); mLinkColor.setColor(user.link_color); mBackgroundColor.setColor(user.background_color); } else { mProgressContainer.setVisibility(View.GONE); mContent.setVisibility(View.GONE); } updateDoneButton(); } private void getUserInfo() { final LoaderManager lm = getSupportLoaderManager(); lm.destroyLoader(LOADER_ID_USER); mGetUserInfoCalled = true; if (mUserInfoLoaderInitialized) { lm.restartLoader(LOADER_ID_USER, null, this); } else { lm.initLoader(LOADER_ID_USER, null, this); mUserInfoLoaderInitialized = true; } } private void setUpdateState(final boolean start) { mEditName.setEnabled(!start); mEditDescription.setEnabled(!start); mEditLocation.setEnabled(!start); mEditUrl.setEnabled(!start); mProfileImageView.setEnabled(!start); mProfileImageView.setOnClickListener(start ? null : this); mProfileBannerView.setEnabled(!start); mProfileBannerView.setOnClickListener(start ? null : this); invalidateOptionsMenu(); } private static boolean stringEquals(final CharSequence str1, final CharSequence str2) { if (str1 == null || str2 == null) return str1 == str2; if (str1.length() != str2.length()) return false; for (int i = 0, j = str1.length(); i < j; i++) { if (str1.charAt(i) != str2.charAt(i)) return false; } return true; } private void updateDoneButton() { mDoneButton.setEnabled(isProfileChanged()); } static class UpdateProfileTaskInternal extends AsyncTask<Object, Object, SingleResponse<ParcelableUser>> { private static final String DIALOG_FRAGMENT_TAG = "updating_user_profile"; private final UserProfileEditorActivity mActivity; private final Handler mHandler; private final long mAccountId; private final ParcelableUser mOriginal; private final String mName; private final String mUrl; private final String mLocation; private final String mDescription; private final int mLinkColor; private final int mBackgroundColor; public UpdateProfileTaskInternal(final UserProfileEditorActivity activity, final long accountId, final ParcelableUser original, final String name, final String url, final String location, final String description, final int linkColor, final int backgroundColor) { mActivity = activity; mHandler = new Handler(activity.getMainLooper()); mAccountId = accountId; mOriginal = original; mName = name; mUrl = url; mLocation = location; mDescription = description; mLinkColor = linkColor; mBackgroundColor = backgroundColor; } @Override protected SingleResponse<ParcelableUser> doInBackground(final Object... params) { final Twitter twitter = getTwitterInstance(mActivity, mAccountId, true); try { User user = null; if (isColorChanged()) { final String linkColor = String.format("%08x", mLinkColor).substring(2); final String backgroundColor = String.format("%08x", mBackgroundColor).substring(2); user = twitter.updateProfileColors(backgroundColor, null, linkColor, null, null); } if (isProfileChanged()) { user = twitter.updateProfile(mName, mUrl, mLocation, mDescription); } if (user == null) { // User profile unchanged return SingleResponse.getInstance(); } return SingleResponse.getInstance(new ParcelableUser(user, mAccountId)); } catch (TwitterException e) { return SingleResponse.getInstance(e); } } private boolean isColorChanged() { final ParcelableUser orig = mOriginal; if (orig == null) return true; if (mLinkColor != orig.link_color) return true; if (mBackgroundColor != orig.background_color) return true; return false; } private boolean isProfileChanged() { final ParcelableUser orig = mOriginal; if (orig == null) return true; if (!stringEquals(mName, orig.name)) return true; if (!stringEquals(mDescription, isEmpty(orig.description_expanded) ? orig.description_plain : orig.description_expanded)) return true; if (!stringEquals(mLocation, orig.location)) return true; if (!stringEquals(mUrl, isEmpty(orig.url_expanded) ? orig.url : orig.url_expanded)) return true; return false; } @Override protected void onPostExecute(final SingleResponse<ParcelableUser> result) { super.onPostExecute(result); final Fragment f = mActivity.getSupportFragmentManager().findFragmentByTag(DIALOG_FRAGMENT_TAG); if (f instanceof DialogFragment) { ((DialogFragment) f).dismissAllowingStateLoss(); } } @Override protected void onPreExecute() { mHandler.post(new Runnable() { @Override public void run() { final DialogFragment df = SupportProgressDialogFragment.show(mActivity, DIALOG_FRAGMENT_TAG); df.setCancelable(false); } }); super.onPreExecute(); } } class RemoveProfileBannerTaskInternal extends AsyncTask<Object, Object, SingleResponse<Boolean>> { private final long account_id; RemoveProfileBannerTaskInternal(final long account_id) { this.account_id = account_id; } @Override protected SingleResponse<Boolean> doInBackground(final Object... params) { return TwitterWrapper.deleteProfileBannerImage(UserProfileEditorActivity.this, account_id); } @Override protected void onPostExecute(final SingleResponse<Boolean> result) { super.onPostExecute(result); if (result.getData() != null && result.getData()) { getUserInfo(); Toast.makeText(UserProfileEditorActivity.this, R.string.profile_banner_image_updated, Toast.LENGTH_SHORT).show(); } else { showErrorMessage(UserProfileEditorActivity.this, R.string.action_removing_profile_banner_image, result.getException(), true); } setUpdateState(false); } @Override protected void onPreExecute() { super.onPreExecute(); setUpdateState(true); } } private class UpdateProfileBannerImageTaskInternal extends UpdateProfileBannerImageTask { public UpdateProfileBannerImageTaskInternal(final Context context, final AsyncTaskManager manager, final long account_id, final Uri image_uri, final boolean delete_image) { super(context, manager, account_id, image_uri, delete_image); } @Override protected void onPostExecute(final SingleResponse<ParcelableUser> result) { super.onPostExecute(result); setUpdateState(false); getUserInfo(); } @Override protected void onPreExecute() { super.onPreExecute(); setUpdateState(true); } } private class UpdateProfileImageTaskInternal extends UpdateProfileImageTask { public UpdateProfileImageTaskInternal(final Context context, final AsyncTaskManager manager, final long account_id, final Uri image_uri, final boolean delete_image) { super(context, manager, account_id, image_uri, delete_image); } @Override protected void onPostExecute(final SingleResponse<ParcelableUser> result) { super.onPostExecute(result); if (result != null && result.getData() != null) { displayUser(result.getData()); } setUpdateState(false); } @Override protected void onPreExecute() { super.onPreExecute(); setUpdateState(true); } } }