mirror of
https://github.com/wahyd4/libr-android.git
synced 2026-08-09 04:56:19 +10:00
Pull inner classes from MainActivity
This commit is contained in:
Hover Ruan
+1
-1
@@ -9,7 +9,7 @@
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<application android:icon="@drawable/icon" android:label="@string/app_name"
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android:theme="@style/Theme.Sherlock.Light.DarkActionBar">
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<activity android:name=".ui.MainActivity">
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<activity android:name=".ui.BookListActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN"/>
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<category android:name="android.intent.category.LAUNCHER"/>
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@@ -5,4 +5,6 @@ package com.github.hoverruan.libr.mobile;
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*/
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public class LibrConstants {
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public static final String TAG = "Libr";
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public static final String API_BOOKS = "http://libr.herokuapp.com/api/books";
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}
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@@ -0,0 +1,45 @@
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package com.github.hoverruan.libr.mobile.ui;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.widget.ImageView;
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import com.github.hoverruan.libr.mobile.domain.Book;
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import com.github.hoverruan.libr.mobile.util.DownloadImageTask;
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import static com.github.hoverruan.libr.mobile.util.FileUtils.newFile;
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import java.io.File;
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/**
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* @author Hover Ruan
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*/
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class BookCoverLoader {
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private Book book;
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private ImageView bookImageView;
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private File cacheDir;
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public BookCoverLoader(File cacheDir, Book book, ImageView bookImageView) {
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this.cacheDir = cacheDir;
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this.book = book;
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this.bookImageView = bookImageView;
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}
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public void load() {
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File coverFile = newFile(cacheDir, "cover", book.buildFilename());
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if (!coverFile.exists()) {
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new DownloadImageTask(coverFile) {
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protected void onPostExecute(File downloadedImageFile) {
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if (downloadedImageFile != null) {
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loadImage(downloadedImageFile);
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}
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}
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}.execute(book.getImage());
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} else {
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loadImage(coverFile);
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}
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}
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private void loadImage(File imageFile) {
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Bitmap bitmap = BitmapFactory.decodeFile(imageFile.getPath());
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bookImageView.setImageBitmap(bitmap);
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}
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}
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@@ -0,0 +1,98 @@
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package com.github.hoverruan.libr.mobile.ui;
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import android.content.Context;
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import android.net.ConnectivityManager;
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import android.net.NetworkInfo;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.widget.ListView;
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import com.actionbarsherlock.app.SherlockListActivity;
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import com.actionbarsherlock.view.Menu;
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import com.actionbarsherlock.view.MenuItem;
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import com.github.hoverruan.libr.mobile.LibrConstants;
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import static com.github.hoverruan.libr.mobile.LibrConstants.TAG;
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import com.github.hoverruan.libr.mobile.R;
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import com.github.hoverruan.libr.mobile.domain.Book;
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import com.github.hoverruan.libr.mobile.domain.BookList;
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import com.github.hoverruan.libr.mobile.domain.BookParser;
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import com.github.hoverruan.libr.mobile.util.DownloadJsonTask;
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import com.github.hoverruan.libr.mobile.util.ToastUtils;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* @author Hover Ruan
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*/
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public class BookListActivity extends SherlockListActivity {
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private List<Book> books = new ArrayList<Book>();
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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if (books == null || books.size() == 0) {
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refreshNewBooks();
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} else {
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showBookList();
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}
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}
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public boolean onCreateOptionsMenu(Menu menu) {
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menu.add(getString(R.string.search))
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.setIcon(R.drawable.ic_search)
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.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
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menu.add(getString(R.string.refresh))
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.setIcon(R.drawable.ic_refresh)
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.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
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public boolean onMenuItemClick(MenuItem item) {
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refreshNewBooks();
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return true;
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}
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})
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.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
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return true;
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}
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protected void onListItemClick(ListView l, View v, int position, long id) {
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Book book = books.get(position);
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Log.i(TAG, book.getName() + " selected");
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}
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private class DownloadBooksInfo extends DownloadJsonTask {
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@Override
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protected void onPostExecute(String booksInfoText) {
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if (booksInfoText != null) {
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BookList bookList = new BookParser().parseBookList(booksInfoText);
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if (bookList != null) {
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books = bookList.getBooks();
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showBookList();
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}
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}
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}
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}
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private void refreshNewBooks() {
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if (isConnected()) {
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new DownloadBooksInfo().execute(LibrConstants.API_BOOKS);
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} else {
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ToastUtils.show(this, R.string.failed_not_connected);
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}
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}
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private void showBookList() {
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setListAdapter(new BookListAdapter(LayoutInflater.from(this), getCacheDir(), books));
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}
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private boolean isConnected() {
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ConnectivityManager connectivityManager =
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(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
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NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
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return networkInfo != null && networkInfo.isConnected();
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}
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}
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@@ -0,0 +1,60 @@
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package com.github.hoverruan.libr.mobile.ui;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.BaseAdapter;
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import android.widget.ImageView;
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import android.widget.TextView;
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import com.github.hoverruan.libr.mobile.R;
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import com.github.hoverruan.libr.mobile.domain.Book;
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import java.io.File;
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import java.util.List;
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/**
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* @author Hover Ruan
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*/
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class BookListAdapter extends BaseAdapter {
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private LayoutInflater inflater;
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private List<Book> books;
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private File cacheDir;
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BookListAdapter(LayoutInflater layoutInflater, File cacheDir, List<Book> books) {
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this.cacheDir = cacheDir;
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this.books = books;
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this.inflater = layoutInflater;
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}
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public int getCount() {
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return books.size();
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}
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public Object getItem(int position) {
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return books.get(position);
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}
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public long getItemId(int position) {
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return books.get(position).getId();
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}
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public View getView(int position, View convertView, ViewGroup parent) {
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if (convertView == null) {
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convertView = inflater.inflate(R.layout.book_item, null);
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}
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Book book = (Book) getItem(position);
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ImageView bookImageView = (ImageView) convertView.findViewById(R.id.book_image);
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new BookCoverLoader(cacheDir, book, bookImageView).load();
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TextView bookNameTextView = (TextView) convertView.findViewById(R.id.book_name);
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bookNameTextView.setText(book.getName());
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TextView bookAuthorTextView = (TextView) convertView.findViewById(R.id.book_author);
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bookAuthorTextView.setText("作者: " + (book.getAuthor() == null ? "无" : book.getAuthor()));
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return convertView;
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}
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}
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@@ -1,167 +0,0 @@
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package com.github.hoverruan.libr.mobile.ui;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.net.ConnectivityManager;
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import android.net.NetworkInfo;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.BaseAdapter;
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import android.widget.ImageView;
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import android.widget.ListView;
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import android.widget.TextView;
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import com.actionbarsherlock.app.SherlockListActivity;
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import com.actionbarsherlock.view.Menu;
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import com.actionbarsherlock.view.MenuItem;
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import static com.github.hoverruan.libr.mobile.LibrConstants.TAG;
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import com.github.hoverruan.libr.mobile.R;
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import com.github.hoverruan.libr.mobile.domain.Book;
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import com.github.hoverruan.libr.mobile.domain.BookList;
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import com.github.hoverruan.libr.mobile.domain.BookParser;
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import com.github.hoverruan.libr.mobile.util.DownloadImageTask;
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import com.github.hoverruan.libr.mobile.util.DownloadJsonTask;
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import static com.github.hoverruan.libr.mobile.util.FileUtils.newFile;
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import com.github.hoverruan.libr.mobile.util.ToastUtils;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* @author Hover Ruan
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*/
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public class MainActivity extends SherlockListActivity {
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private List<Book> books = new ArrayList<Book>();
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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if (books == null || books.size() == 0) {
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if (isConnected()) {
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new DownloadBooksInfo().execute("http://libr.herokuapp.com/api/books");
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} else {
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ToastUtils.show(this, R.string.failed_not_connected);
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}
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} else {
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showBookList();
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}
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}
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public boolean onCreateOptionsMenu(Menu menu) {
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menu.add(getString(R.string.search))
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.setIcon(R.drawable.ic_search)
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.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
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menu.add(getString(R.string.refresh))
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.setIcon(R.drawable.ic_refresh)
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.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
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return true;
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}
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protected void onListItemClick(ListView l, View v, int position, long id) {
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Book book = books.get(position);
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Log.i(TAG, book.getName() + " selected");
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}
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private class BookListAdapter extends BaseAdapter {
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private LayoutInflater inflater;
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private BookListAdapter(Context context) {
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this.inflater = LayoutInflater.from(context);
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}
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public int getCount() {
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return books.size();
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}
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public Object getItem(int position) {
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return books.get(position);
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}
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public long getItemId(int position) {
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return books.get(position).getId();
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}
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public View getView(int position, View convertView, ViewGroup parent) {
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if (convertView == null) {
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convertView = inflater.inflate(R.layout.book_item, null);
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}
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Book book = (Book) getItem(position);
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ImageView bookImageView = (ImageView) convertView.findViewById(R.id.book_image);
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new BookCoverLoader(book, bookImageView).load();
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TextView bookNameTextView = (TextView) convertView.findViewById(R.id.book_name);
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bookNameTextView.setText(book.getName());
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TextView bookAuthorTextView = (TextView) convertView.findViewById(R.id.book_author);
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bookAuthorTextView.setText("作者: " + (book.getAuthor() == null ? "无" : book.getAuthor()));
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return convertView;
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}
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}
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private class DownloadBooksInfo extends DownloadJsonTask {
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@Override
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protected void onPostExecute(String booksInfoText) {
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if (booksInfoText != null) {
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BookList bookList = new BookParser().parseBookList(booksInfoText);
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if (bookList != null) {
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books = bookList.getBooks();
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showBookList();
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}
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}
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}
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}
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private class BookCoverLoader {
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private Book book;
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private ImageView bookImageView;
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public BookCoverLoader(Book book, ImageView bookImageView) {
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this.book = book;
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this.bookImageView = bookImageView;
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}
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public void load() {
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File coverFile = newFile(MainActivity.this.getCacheDir(), "cover", book.buildFilename());
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if (!coverFile.exists()) {
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new DownloadImageTask(coverFile) {
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protected void onPostExecute(File downloadedImageFile) {
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if (downloadedImageFile != null) {
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loadImage(downloadedImageFile);
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}
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}
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}.execute(book.getImage());
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} else {
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loadImage(coverFile);
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}
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}
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private void loadImage(File imageFile) {
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Bitmap bitmap = BitmapFactory.decodeFile(imageFile.getPath());
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bookImageView.setImageBitmap(bitmap);
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}
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}
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private void showBookList() {
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setListAdapter(new BookListAdapter(this));
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}
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private boolean isConnected() {
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ConnectivityManager connectivityManager =
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(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
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NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
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return networkInfo != null && networkInfo.isConnected();
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}
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}
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