Java tutorial
package de.wikilab.android.friendica01.activity; /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ import java.io.File; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.PackageManager.NameNotFoundException; import android.net.Uri; import android.os.Bundle; import android.preference.PreferenceManager; import android.provider.MediaStore; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentTransaction; import android.util.Log; import android.view.KeyEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.animation.AccelerateDecelerateInterpolator; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.ProgressBar; import android.widget.TextView; import com.google.android.gcm.GCMRegistrar; import de.wikilab.android.friendica01.FragmentParentListener; import de.wikilab.android.friendica01.LoginListener; import de.wikilab.android.friendica01.Max; import de.wikilab.android.friendica01.R; import de.wikilab.android.friendica01.TwAjax; import de.wikilab.android.friendica01.R.anim; import de.wikilab.android.friendica01.R.id; import de.wikilab.android.friendica01.R.layout; import de.wikilab.android.friendica01.fragment.ContentFragment; import de.wikilab.android.friendica01.fragment.FriendListFragment; import de.wikilab.android.friendica01.fragment.MessageViewFragment; import de.wikilab.android.friendica01.fragment.PhotoGalleryFragment; import de.wikilab.android.friendica01.fragment.PostDetailFragment; import de.wikilab.android.friendica01.fragment.PostListFragment; import de.wikilab.android.friendica01.fragment.WritePostFragment; public class HomeActivity extends FragmentActivity implements FragmentParentListener, LoginListener { private static final String TAG = "Friendica/HomeActivity"; public final static String SENDER_ID = "179387721673"; public static final int RQ_SELECT_PHOTO = 44; public static final int RQ_TAKE_PHOTO = 55; public File takePhotoTarget; boolean isLargeMode = false; /* WelcomeFragment frag_welcome = new WelcomeFragment(); PostListFragment frag_posts = new PostListFragment(); WritePostFragment frag_writepost = new WritePostFragment(); PhotoGalleryFragment frag_photos = new PhotoGalleryFragment(); FriendListFragment frag_friendlist = new FriendListFragment(); PostDetailFragment frag_postdetail = new PostDetailFragment(); MessageViewFragment frag_messages = new MessageViewFragment(); //PreferenceFragment frag_preferences = new PreferenceFragment(); */ String currentMMItem = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.homeactivity); Max.initDataDirs(); Log.d(TAG, "screenLayout=" + getResources().getConfiguration().screenLayout); if (Max.isLarge(getResources().getConfiguration())) { // on a large screen device ... isLargeMode = true; } SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); String userName = prefs.getString("login_user", null); if (userName == null || userName.length() < 1) { Max.showLoginForm(this, "Please enter account data"); } else { Max.tryLogin(this); if (savedInstanceState == null) { Log.v(TAG, "SaveInstanceState is null"); navigate(getResources().getString(R.string.mm_timeline)); } else { currentMMItem = savedInstanceState.getString("currentMMItem"); if (currentMMItem != null) navigate(currentMMItem); } try { GCMRegistrar.checkDevice(this); GCMRegistrar.checkManifest(this); final String regId = GCMRegistrar.getRegistrationId(this); if (regId.equals("")) { Log.v(TAG, "Registering for GCM"); GCMRegistrar.register(this, SENDER_ID); } else { Log.v(TAG, "Already registered"); } } catch (Exception e) { Log.e(TAG, "Google Cloud Messaging not supported - please install Google Apps package!"); Log.e(TAG, e.toString()); Log.e(TAG, "Continuing without GCM. Push notifications won't work."); } } View toggle = findViewById(R.id.toggle_left_bar); if (toggle != null) toggle.setOnClickListener(toggleMenuBarHandler); //toggle = findViewById(R.id.toggle_left_bar2); //if (toggle != null) toggle.setOnClickListener(toggleMenuBarHandler); toggle = findViewById(R.id.left_bar_header); if (toggle != null) toggle.setOnClickListener(toggleMenuBarHandler); //ViewServer.get(this).addWindow(this); Log.i(TAG, "Should check for updates?"); if (prefs.getBoolean("updateChecker", true)) { Log.i(TAG, "Checking for updates..."); final TwAjax updateChecker = new TwAjax(this, true, false); updateChecker.getUrlContent("http://friendica-for-android.wiki-lab.net/docs/update.txt", new Runnable() { @Override public void run() { String res = updateChecker.getResult(); if (res != null && res.startsWith("UPDATE=")) { try { int version = Integer.parseInt(res.substring(7)); int currentVersion = getPackageManager().getPackageInfo(getPackageName(), 0).versionCode; Log.i(TAG, "UpdateCheck onlineVersion=" + version + " currentVersion=" + currentVersion); if (version > currentVersion) { Max.alert(HomeActivity.this, "<a href='http://friendica-for-android.wiki-lab.net/update-landing/'>Click here to load the update!</a><br><br>(Go to Preferences to disable update check)", "Update available!"); } } catch (NameNotFoundException e) { e.printStackTrace(); Log.e(TAG, "UpdateCheck failed! (2)"); } } else { Log.e(TAG, "UpdateCheck failed!"); } } }); } } OnClickListener toggleMenuBarHandler = new OnClickListener() { @Override public void onClick(View v) { toggleMenuBarVisible(); } }; protected void toggleMenuBarVisible() { View leftBar = findViewById(R.id.left_bar); setMenuBarVisible(leftBar.getVisibility() == View.GONE); } protected void setMenuBarVisible(boolean v) { View leftBar = findViewById(R.id.left_bar); if (v) { Animation anim1 = AnimationUtils.loadAnimation(HomeActivity.this, android.R.anim.slide_in_left); anim1.setInterpolator((new AccelerateDecelerateInterpolator())); //anim1.setFillAfter(true); leftBar.setAnimation(anim1); leftBar.setVisibility(View.VISIBLE); } else { Animation anim1 = AnimationUtils.loadAnimation(HomeActivity.this, R.anim.slide_out_left); anim1.setInterpolator((new AccelerateDecelerateInterpolator())); anim1.setFillAfter(true); leftBar.setAnimation(anim1); leftBar.setVisibility(View.GONE); } } @Override protected void onSaveInstanceState(Bundle outState) { outState.putString("currentMMItem", currentMMItem); super.onSaveInstanceState(outState); } @Override protected void onStart() { super.onStart(); } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); } @Override public void OnFragmentMessage(String message, Object arg1, Object arg2) { if (message.equals("Set Header Text")) { setHeadertext((String) arg1); } if (message.equals("Navigate Main Menu")) { navigate((String) arg1); } if (message.equals("Loading Animation")) { ((ProgressBar) findViewById(R.id.glob_progressbar)).setVisibility(((Integer) arg1).intValue()); } if (message.equals("Navigate Conversation")) { navigateConversation((String) arg1); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { switch (requestCode) { case RQ_SELECT_PHOTO: if (resultCode == RESULT_OK) { Intent in = new Intent(HomeActivity.this, FriendicaImgUploadActivity.class); in.putExtra(Intent.EXTRA_STREAM, data.getData()); startActivity(in); } break; case RQ_TAKE_PHOTO: if (resultCode == RESULT_OK) { //Log.e("INTENT=",data==null?"NULL":"not null"); Intent in = new Intent(HomeActivity.this, FriendicaImgUploadActivity.class); in.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(takePhotoTarget)); //in.putExtra(Intent.EXTRA_STREAM, data.getData()); startActivity(in); } break; default: super.onActivityResult(requestCode, resultCode, data); } } void onNavMainFragment() { if (!isLargeMode) { View leftBar = findViewById(R.id.left_bar); leftBar.setVisibility(View.GONE); } } void navigate(String arg1) { currentMMItem = arg1; if (arg1.equals(getResources().getString(R.string.mm_timeline))) { navigatePostList(getResources().getString(R.string.mm_timeline)); } if (arg1.equals(getResources().getString(R.string.mm_notifications))) { navigatePostList(getResources().getString(R.string.mm_notifications)); } if (arg1.equals(getResources().getString(R.string.mm_mywall))) { navigatePostList(getResources().getString(R.string.mm_mywall)); } if (arg1.equals(getResources().getString(R.string.mm_updatemystatus))) { navigateStatusUpdate(); } if (arg1.equals(getResources().getString(R.string.mm_friends))) { navigateFriendList(); } if (arg1.equals(getResources().getString(R.string.mm_myphotoalbums))) { navigatePhotoGallery(getResources().getString(R.string.mm_myphotoalbums)); } if (arg1.equals(getResources().getString(R.string.mm_takephoto))) { Intent in = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); takePhotoTarget = Max.getTempFile(); in.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(takePhotoTarget)); startActivityForResult(in, RQ_TAKE_PHOTO); } if (arg1.equals(getResources().getString(R.string.mm_selectphoto))) { Intent in = new Intent(Intent.ACTION_PICK); in.setType("image/*"); startActivityForResult(in, RQ_SELECT_PHOTO); } if (arg1.equals(getResources().getString(R.string.mm_directmessages))) { //Intent in = new Intent(HomeActivity.this, MessagesActivity.class); //startActivity(in); navigateMessages("msg:all"); } if (arg1.equals(getResources().getString(R.string.mm_preferences))) { navigatePreferences(); } if (arg1.equals(getResources().getString(R.string.mm_logout))) { SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(HomeActivity.this) .edit(); //prefs.putString("login_server", null); //keep server and user ... prefs.putString("login_user", null); prefs.putString("login_password", null); //...only remove password prefs.commit(); finish(); } } void setHeadertext(String ht) { TextView subheading = (TextView) findViewById(R.id.header_text); if (subheading != null) subheading.setText(ht); } private void navigateMainFragment(ContentFragment newFragment, String target) { onNavMainFragment(); FragmentTransaction t = getSupportFragmentManager().beginTransaction(); Bundle b = new Bundle(); b.putString("target", target); newFragment.setArguments(b); t.replace(R.id.view_fragment_container, newFragment); //t.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN); t.setCustomAnimations(R.anim.slide_in_right, android.R.anim.slide_out_right); t.addToBackStack(null); t.commit(); newFragment.navigate(target); } private void navigateFriendList() { navigateMainFragment(new FriendListFragment(), "friendlist"); } private void navigatePostList(String listTarget) { navigateMainFragment(new PostListFragment(), listTarget); } private void navigateConversation(String conversationId) { navigateMainFragment(new PostDetailFragment(), "conversation:" + conversationId); } private void navigatePhotoGallery(String galleryTarget) { navigateMainFragment(new PhotoGalleryFragment(), galleryTarget); } private void navigateMessages(String target) { navigateMainFragment(new MessageViewFragment(), target); } private void navigateStatusUpdate() { navigateMainFragment(new WritePostFragment(), "statusupdate"); } private void navigatePreferences() { /*if (! isMultiCol()) {*/ Intent showContent = new Intent(getApplicationContext(), PreferencesActivity.class); //showContent.putExtra("target", listTarget); startActivity(showContent); /*} else { Fragment viewerFragment = (Fragment) getSupportFragmentManager().findFragmentById(R.id.view_fragment_container); if (viewerFragment != frag_preferences) { FragmentTransaction t = getSupportFragmentManager().beginTransaction(); t.replace(R.id.view_fragment_container, frag_preferences); t.commit(); } frag_preferences.navigate(""); }*/ } //never used??? /* public void navigatePostDetailId(String postId) { onNavMainFragment(); Fragment viewerFragment = (Fragment) getSupportFragmentManager().findFragmentById(R.id.view_fragment_container); if (viewerFragment != frag_postdetail) { FragmentTransaction t = getSupportFragmentManager().beginTransaction(); t.replace(R.id.view_fragment_container, frag_postdetail); t.commit(); } frag_postdetail.navigate("post:" + postId); } */ @Override public void OnLogin() { LoginListener target = (LoginListener) getSupportFragmentManager().findFragmentById(R.id.menu_fragment); target.OnLogin(); } @Override public void onBackPressed() { if (!isLargeMode) { View leftBar = findViewById(R.id.left_bar); if (leftBar.getVisibility() != View.GONE) { leftBar.setVisibility(View.GONE); return; } } Fragment viewerFragment = (Fragment) getSupportFragmentManager() .findFragmentById(R.id.view_fragment_container); if (viewerFragment instanceof ContentFragment) { if (((ContentFragment) viewerFragment).onBackPressed()) { return; } } super.onBackPressed(); } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_MENU) { toggleMenuBarVisible(); return false; } else { return super.onKeyUp(keyCode, event); } } }