Java tutorial
/* * Copyright (c) 2015 Ushahidi Inc * * This program is free software: you can redistribute it and/or modify it under * the terms of the GNU Affero 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program in the file LICENSE-AGPL. If not, see * https://www.gnu.org/licenses/agpl-3.0.html */ package com.ushahidi.android.presentation.view.ui.activity; import com.orhanobut.dialogplus.DialogPlus; import com.orhanobut.dialogplus.Holder; import com.ushahidi.android.R; import com.ushahidi.android.data.api.account.PlatformSession; import com.ushahidi.android.data.api.account.SessionManager; import com.ushahidi.android.data.api.oauth.UshAccessTokenManager; import com.ushahidi.android.presentation.UshahidiApplication; import com.ushahidi.android.presentation.di.components.form.DaggerListFormComponent; import com.ushahidi.android.presentation.di.components.form.ListFormComponent; import com.ushahidi.android.presentation.di.components.post.AddPostComponent; import com.ushahidi.android.presentation.di.components.post.DaggerAddPostComponent; import com.ushahidi.android.presentation.di.components.post.DaggerListPostComponent; import com.ushahidi.android.presentation.di.components.post.DaggerMapPostComponent; import com.ushahidi.android.presentation.di.components.post.DaggerPostComponent; import com.ushahidi.android.presentation.di.components.post.DaggerUserProfileComponent; import com.ushahidi.android.presentation.di.components.post.ListPostComponent; import com.ushahidi.android.presentation.di.components.post.MapPostComponent; import com.ushahidi.android.presentation.di.components.post.PostComponent; import com.ushahidi.android.presentation.di.components.post.UserProfileComponent; import com.ushahidi.android.presentation.model.DeploymentModel; import com.ushahidi.android.presentation.model.FormModel; import com.ushahidi.android.presentation.model.UserProfileModel; import com.ushahidi.android.presentation.presenter.form.ListFormPresenter; import com.ushahidi.android.presentation.presenter.post.PostPresenter; import com.ushahidi.android.presentation.state.LoadUserProfileEvent; import com.ushahidi.android.presentation.state.ReloadPostEvent; import com.ushahidi.android.presentation.util.Utility; import com.ushahidi.android.presentation.view.form.ListFormView; import com.ushahidi.android.presentation.view.post.PostView; import com.ushahidi.android.presentation.view.ui.adapter.FormAdapter; import com.ushahidi.android.presentation.view.ui.fragment.ListPostFragment; import com.ushahidi.android.presentation.view.ui.fragment.MapPostFragment; import com.ushahidi.android.presentation.view.ui.fragment.UserProfileFragment; import com.ushahidi.android.presentation.view.ui.widget.CustomGridHolder; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.content.Context; import android.content.DialogInterface; import android.content.res.Configuration; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.NavigationView; import android.support.design.widget.TabLayout; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.view.GravityCompat; import android.support.v4.view.ViewPager; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AlertDialog; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.view.SubMenu; import android.view.View; import android.view.ViewGroup; import android.view.animation.OvershootInterpolator; import java.util.ArrayList; import java.util.List; import butterknife.Bind; import butterknife.OnClick; import rx.android.schedulers.AndroidSchedulers; /** * @author Ushahidi Team <team@ushahidi.com> */ public class PostActivity extends BaseAppActivity implements PostView, ListFormView { private static final String STATE_PARAM_SELECTED_TAB = "com.ushahidi.android.presentation.view.ui.activity.SELECTED_TAB"; private static final String BUNDLE_STATE_PARAM_CURRENT_MENU = "com.ushahidi.android.presentation.view.ui.activity.BUNDLE_STATE_PARAM_CURRENT_MENU"; private static final int DEPLOYMENTS_MENU_ITEMS_GROUP_ID = 1; private static final int MISC_MENU_ITEMS = 2; // Using negative values for the static nav drawer menu items because // we want them to be unique from the dynamic menus private static final int MANAGE_DEPLOYMENT_MENU_ID = -1; private static final int FEEDBACK_MENU_ID = -2; private static final int ABOUT_MENU_ID = -3; private static final int LOGOUT_MENU_ID = -4; private static final int START_DELAY_ANIM = 300; private static final int DURATION_ANIM = 400; private static int mCurrentItem; @Bind(R.id.toolbar) Toolbar mToolbar; @Bind(R.id.drawer_layout) DrawerLayout mDrawerLayout; @Bind((R.id.main_navigation_drawer)) NavigationView mNavigationView; @Bind(R.id.post_viewpager) ViewPager mViewPager; @Bind(R.id.post_fab) FloatingActionButton mFab; @Bind(R.id.post_tabs) TabLayout mTabLayout; PostPresenter mPostPresenter; ListFormPresenter mListFormPresenter; UshAccessTokenManager mUshAccessTokenManager; SessionManager<PlatformSession> mSessionManager; private ListPostComponent mListPostComponent; private MapPostComponent mMapPostComponent; private UserProfileComponent mUserProfileComponent; private AddPostComponent mAddPostComponent; private ActionBarDrawerToggle mDrawerToggle; private int mCurrentMenu; private List<DeploymentModel> mDeploymentModelList; private boolean mPendingIntroAnimation; private FormAdapter mFormAdapter; private SubMenu mSubMenuMisc; /** * Default constructor */ public PostActivity() { super(R.layout.activity_post, R.menu.main); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); injector(); initViews(); if (savedInstanceState != null) { mCurrentItem = savedInstanceState.getInt(STATE_PARAM_SELECTED_TAB); mCurrentMenu = savedInstanceState.getInt(BUNDLE_STATE_PARAM_CURRENT_MENU, 0); } else { mPendingIntroAnimation = true; } UserProfileFragment userProfileFragment = (UserProfileFragment) getSupportFragmentManager() .findFragmentById(R.id.user_profile_fragment); if (userProfileFragment != null) { userProfileFragment.setDrawerLayout(mDrawerLayout); } } @Override public void onSaveInstanceState(Bundle savedInstanceState) { savedInstanceState.putInt(STATE_PARAM_SELECTED_TAB, mCurrentItem); savedInstanceState.putInt(BUNDLE_STATE_PARAM_CURRENT_MENU, mCurrentMenu); super.onSaveInstanceState(savedInstanceState); } @Override public void onResume() { super.onResume(); mPostPresenter.resume(); showLoginUserProfile(); mViewPager.setCurrentItem(mCurrentItem); } @Override public void onPause() { super.onPause(); mCurrentItem = mViewPager.getCurrentItem(); } @Override public void onDestroy() { super.onDestroy(); mPostPresenter.destroy(); } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); if (mPendingIntroAnimation) { mPendingIntroAnimation = false; startIntroAnimation(); } return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: mDrawerLayout.openDrawer(GravityCompat.START); return true; case R.id.menu_post_search: mListPostComponent.launcher().launchSearchPost(); return true; default: return super.onOptionsItemSelected(item); } } private void initViews() { setSupportActionBar(mToolbar); mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, mToolbar, R.string.app_name, R.string.app_name); mDrawerToggle.setDrawerIndicatorEnabled(true); mDrawerLayout.setDrawerListener(mDrawerToggle); if (mNavigationView != null) { setNavigationViewMenuItems(mNavigationView.getMenu()); setupDrawerContent(mNavigationView); } if (mViewPager != null) { setupViewPager(mViewPager); } mTabLayout.setupWithViewPager(mViewPager); mFormAdapter = new FormAdapter(this); } private void injector() { PostComponent postComponent = DaggerPostComponent.builder().appComponent(getAppComponent()) .activityModule(getActivityModule()).build(); ListFormComponent listFormComponent = DaggerListFormComponent.builder().appComponent(getAppComponent()) .activityModule(getActivityModule()).build(); mListPostComponent = DaggerListPostComponent.builder().appComponent(getAppComponent()) .activityModule(getActivityModule()).build(); mMapPostComponent = DaggerMapPostComponent.builder().appComponent(getAppComponent()) .activityModule(getActivityModule()).build(); mUserProfileComponent = DaggerUserProfileComponent.builder().appComponent(getAppComponent()) .activityModule(getActivityModule()).build(); mAddPostComponent = DaggerAddPostComponent.builder().appComponent(getAppComponent()) .activityModule(getActivityModule()).build(); mUshAccessTokenManager = getAppComponent().ushahidiTokenManager(); mSessionManager = getAppComponent().platformSessionManager(); mPostPresenter = postComponent.postPresenter(); mPostPresenter.setPostView(this); mListFormPresenter = listFormComponent.listFormPresenter(); mListFormPresenter.setView(this); } private void setupViewPager(ViewPager viewPager) { TabPagerAdapter adapter = new TabPagerAdapter(getSupportFragmentManager(), viewPager); adapter.addFragment(ListPostFragment.newInstance(), getString(R.string.list)); adapter.addFragment(MapPostFragment.newInstance(), getString(R.string.map)); viewPager.setAdapter(adapter); } private void setupDrawerContent(NavigationView navigationView) { navigationView.setNavigationItemSelectedListener(menuItem -> { switch (menuItem.getItemId()) { // All static menu items have their id set to a negative value. // We use that to determine which activity or fragment to launch. case MANAGE_DEPLOYMENT_MENU_ID: getListPostComponent().launcher().launchListDeployment(); break; case FEEDBACK_MENU_ID: getListPostComponent().launcher().launchFeedback(); break; case ABOUT_MENU_ID: getListPostComponent().launcher().launchAbout(); break; case LOGOUT_MENU_ID: getListPostComponent().launcher().launchLogout(); default: if (menuItem.getGroupId() == DEPLOYMENTS_MENU_ITEMS_GROUP_ID) { mCurrentMenu = menuItem.getItemId(); // Mark the deployment active if it's not if (mDeploymentModelList.get(menuItem.getItemId()).getStatus() .equals(DeploymentModel.Status.DEACTIVATED)) { mPostPresenter.activateDeployment(mDeploymentModelList, menuItem.getItemId()); menuItem.setChecked(true); } menuItem.setCheckable(true); menuItem.setChecked(true); mToolbar.setTitle(menuItem.getTitle()); } } mDrawerLayout.closeDrawers(); return true; }); } private void setNavigationViewMenuItems(@NonNull Menu menu) { // Reset menu items to avoid duplicates because we reinitialize them menu.clear(); if (!Utility.isCollectionEmpty(mDeploymentModelList)) { SubMenu subMenu = menu.addSubMenu(Menu.NONE, Menu.FIRST, Menu.NONE, R.string.deployments); subMenu.setGroupCheckable(DEPLOYMENTS_MENU_ITEMS_GROUP_ID, true, true); // Use item position as the menu item's id that way we can retrieve the individual // deployment when user clicks on it to make it the active deployment for (int pos = 0; pos < mDeploymentModelList.size(); pos++) { subMenu.add(DEPLOYMENTS_MENU_ITEMS_GROUP_ID, pos, pos, mDeploymentModelList.get(pos).getTitle()) .setIcon(R.drawable.ic_action_globe); if (mDeploymentModelList.get(pos).getStatus().equals(DeploymentModel.Status.ACTIVATED)) { mNavigationView.getMenu().findItem(pos).setChecked(true); mToolbar.setTitle(mNavigationView.getMenu().findItem(pos).getTitle()); } else { mNavigationView.getMenu().findItem(pos).setChecked(false); } } } mSubMenuMisc = menu.addSubMenu(Menu.NONE, Menu.FIRST, Menu.NONE, R.string.actions); mSubMenuMisc.add(MISC_MENU_ITEMS, MANAGE_DEPLOYMENT_MENU_ID, 1, R.string.manage_deployments) .setIcon(R.drawable.ic_action_map); mSubMenuMisc.add(MISC_MENU_ITEMS, FEEDBACK_MENU_ID, 2, R.string.send_feedback) .setIcon(R.drawable.ic_action_help); mSubMenuMisc.add(MISC_MENU_ITEMS, ABOUT_MENU_ID, 3, R.string.about).setIcon(R.drawable.ic_action_info); if (mSessionManager.getActiveSession() != null) { mSubMenuMisc.add(MISC_MENU_ITEMS, LOGOUT_MENU_ID, 4, R.string.logout) .setIcon(R.drawable.ic_action_logout); } mSubMenuMisc.setGroupCheckable(MISC_MENU_ITEMS, true, true); } /** * Gets the list post component * * @return The list component */ public ListPostComponent getListPostComponent() { return mListPostComponent; } /** * Gets the map post component * * @return The map component */ public MapPostComponent getMapPostComponent() { return mMapPostComponent; } /** * User profile component * * @return The user profile component */ public UserProfileComponent getUserProfileComponent() { return mUserProfileComponent; } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); mDrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mDrawerToggle.onConfigurationChanged(newConfig); } @Override public void onBackPressed() { if (mDrawerLayout.isDrawerOpen(GravityCompat.START)) { mDrawerLayout.closeDrawer(GravityCompat.START); } else { super.onBackPressed(); } } private void startIntroAnimation() { mFab.setTranslationY(2 * mFab.getHeight()); mToolbar.setTranslationY(-mToolbar.getHeight()); mToolbar.animate().translationY(0).setDuration(DURATION_ANIM).setStartDelay(START_DELAY_ANIM) .setListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { startContentAnimation(); } }).start(); } private void startContentAnimation() { mFab.animate().translationY(0).setInterpolator(new OvershootInterpolator(1.f)) .setStartDelay(START_DELAY_ANIM).setDuration(DURATION_ANIM).start(); // Cause the post list to reload UshahidiApplication.getRxEventBusInstance().send(new ReloadPostEvent(null)); } private void showLoginUserProfile() { mUshAccessTokenManager.getStorage().hasAccessToken().observeOn(AndroidSchedulers.mainThread()) .subscribe(loggedIn -> { if (loggedIn) { Long profileId = mSessionManager.getActiveSession().getId(); mPostPresenter.getUserProfile(profileId); } else { UshahidiApplication.getRxEventBusInstance().send(new LoadUserProfileEvent(null)); } }, x -> x.printStackTrace()); } public void launchLogout() { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage(R.string.dialog_logout_message).setCancelable(false).setIcon(R.drawable.ic_action_globe) .setPositiveButton(R.string.dialog_logout_btn_postive, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { // Clear active session SessionManager sessionManager = getAppComponent().platformSessionManager(); sessionManager.clearActiveSession(); // Clear access token UshAccessTokenManager ushAccessTokenManager = getAppComponent().ushahidiTokenManager(); ushAccessTokenManager.getStorage().removeAccessToken(); // Send an event UshahidiApplication.getRxEventBusInstance().send(new LoadUserProfileEvent(null)); setNavigationViewMenuItems(mNavigationView.getMenu()); } }).setNegativeButton(R.string.dialog_logout_btn_negative, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }); builder.create().show(); } /** * Handles FAB clicks * * @param view The FAB view */ @OnClick(R.id.post_fab) void onFabClick(View view) { Holder holder = new CustomGridHolder(3); final DialogPlus dialog = DialogPlus.newDialog(this) .setOnItemClickListener((dia, item, view1, position) -> { final FormModel formModel = mFormAdapter.getItem(position); mMapPostComponent.launcher().launchAddPost(formModel._id, formModel.getName()); dia.dismiss(); }).setExpanded(true).setCancelable(true).setContentHolder(holder) .setHeader(R.layout.form_dialog_header).setAdapter(mFormAdapter) .setContentHeight(ViewGroup.LayoutParams.MATCH_PARENT) .setOnBackPressListener(dialogPlus -> dialogPlus.dismiss()).create(); dialog.show(); } @Override public void setActiveUserProfile(UserProfileModel userProfile) { UshahidiApplication.getRxEventBusInstance().send(new LoadUserProfileEvent(userProfile)); } @Override public void setActiveDeployment(DeploymentModel deployment) { UshahidiApplication.getRxEventBusInstance().send(new ReloadPostEvent(deployment)); } @Override public void deploymentList(List<DeploymentModel> deploymentModels) { mDeploymentModelList = deploymentModels; if (Utility.isCollectionEmpty(deploymentModels)) { getListPostComponent().launcher().launchListDeployment(); } else { markFirstDeploymentActive(); setNavigationViewMenuItems(mNavigationView.getMenu()); mListFormPresenter.loadFormFromDb(); } } @Override public void showLoading() { } @Override public void hideLoading() { } @Override public void showRetry() { } @Override public void hideRetry() { } @Override public void showError(String s) { } @Override public Context getAppContext() { return getApplicationContext(); } @Override public void renderFormList(List<FormModel> formModel) { if (!Utility.isCollectionEmpty(formModel)) { mFormAdapter.setItems(formModel); } } // This is to ensure there is always an active deployment private void markFirstDeploymentActive() { for (DeploymentModel deploymentModel : mDeploymentModelList) { if (deploymentModel.getStatus().equals(DeploymentModel.Status.ACTIVATED)) { break; } else { // Make the first item the active one mPostPresenter.activateDeployment(mDeploymentModelList, 0); } } } /** * An adapter that provides fragments for {@link ViewPager} */ static class TabPagerAdapter extends FragmentPagerAdapter { private final List<Fragment> mFragments = new ArrayList<>(); private final List<String> mFragmentTitles = new ArrayList<>(); private ViewPager mPager; /** * Default constructor * * @param fm The fragment manager * @param viewPager The view pager */ public TabPagerAdapter(FragmentManager fm, ViewPager viewPager) { super(fm); mPager = viewPager; } /** * Adds a fragment to the view pager * * @param fragment The fragment to be added * @param title The title of the view pager */ public void addFragment(Fragment fragment, String title) { mFragments.add(fragment); mFragmentTitles.add(title); notifyDataSetChanged(); mPager.setCurrentItem(mCurrentItem); } @Override public Fragment getItem(int position) { return mFragments.get(position); } @Override public int getCount() { return mFragments.size(); } @Override public CharSequence getPageTitle(int position) { return mFragmentTitles.get(position); } } }