我正在为Android创建一个epub阅读器，所以在经过大量搜索后我找到了skyepub库（SDK）。似乎它具有我想要的所有功能。
我跟着网站上的tut，但是在运行代码后我得到了一个空白屏幕和不同apis的不同logcat，我再次检查了代码和agian但是我找不到什么是错。
这是我的代码和logcat，任何帮助都将不胜感激。
public void makeLayout()
{
String fileName = new String();
fileName = "AliceinWonderland.epub";
makeSetup(); //making directory in device and copy every thing to it
rv = new ReflowableControl(this); // rv is ReflowableControl. an epub class (view) for showing content
Bitmap pageCenter = BitmapFactory.decodeFile(getFilesDir().getAbsolutePath() + "/images/PagesCenter.png");
Bitmap pageStack = BitmapFactory.decodeFile(getFilesDir().getAbsolutePath() + "/images/PagesStack.png");
rv.setPagesStackImage(pageStack);
rv.setPagesCenterImage(pageCenter);
rv.setBaseDirectory(getFilesDir() + "/books");
rv.setBookName(fileName);
rv.setDoublePagedForLandscape(true);
rv.setFont("TimesRoman", 26);
rv.setLineSpacing(135);
rv.setHorizontalGapRatio(0.15);
rv.setVerticalGapRatio(0.1);
/*
* all listener class are implementation of default class in library with simple override method like
* public void onClick(int x,int y)
* {
* Log.w("EPub","Click Detected at"+x+":"+y);
* }
*/
rv.setHighlightListener(new HighlightDelegate());
rv.setPageMovedListener(new PageMovedDelegate());
rv.setSelectionListener(new SelectionDelegate());
rv.setPagingListener(new PagingDelegate());
rv.setSearchListener(new SearchDelegate());
rv.setStateListener(new StateDelegate());
rv.setClickListener(new ClickDelegate());
rv.setBookmarkListener(new BookmarkDelegate());
ContentHandler cl = new ContentHandler();
rv.setContentListener(cl);
rv.setStartPositionInBook(0.285714f);
rv.setNavigationAreaWidthRatio(0.4f);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
params.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
params.width = LayoutParams.MATCH_PARENT;
params.height = LayoutParams.MATCH_PARENT;
rv.setLayoutParams(params);
ePubView = new RelativeLayout(this);
RelativeLayout.LayoutParams rlp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);
ePubView.setLayoutParams(rlp);
ePubView.addView(rv);
setContentView(ePubView);
}
public void makeSetup()
{
if (this.isSetup()) return;
if (!this.makeDirectory("scripts"))
{
debug("faild to make scripts directory");
}
if (!this.makeDirectory("images"))
{
debug("faild to make images directory");
}
if (!this.makeDirectory("covers"))
{
debug("faild to make images directory");
}
copyImageToDevice("PagesCenter.png");
copyImageToDevice("PagesStack.png");
if (!this.makeDirectory("downloads"))
{
debug("faild to make downloads directory");
}
if (!this.makeDirectory("books"))
{
debug("faild to make books directory");
}
if (!this.makeDirectory("books/fonts"))
{
debug("faild to make fonts directory");
}
copyBookToDevice("AliceinWonderland.epub");
copyFontToDevice("arial.ttf");
copyFontToDevice("simpo.ttf");
copyFontToDevice("tahoma.ttf");
copyFontToDevice("times.ttf");
SharedPreferences pref = this.getSharedPreferences("EPubTest",0);
SharedPreferences.Editor edit = pref.edit();
edit.putBoolean("isSetup", true);
edit.commit();
}
private boolean isSetup()
{
SharedPreferences pref = this.getSharedPreferences("EPubTest",0);
return pref.getBoolean("isSetup",false);
}
public boolean makeDirectory(String dirName)
{
boolean res;
String filePath = new String(this.getFilesDir().getAbsolutePath() + "/"+dirName);
debug(filePath);
File file = new File(filePath);
if (!file.exists()) {
res = file.mkdirs();
}else {
res = false;
}
return res;
}
public void copyImageToDevice(String fileName)
{
try
{
String path = this.getFilesDir().getAbsolutePath() + "/images/"+fileName;
File file = new File(path);
if (file.exists()) return;
InputStream localInputStream = this.getAssets().open("images/"+fileName);
FileOutputStream localFileOutputStream = new FileOutputStream(this.getFilesDir().getAbsolutePath() + "/images/"+fileName);
byte[] arrayOfByte = new byte[1024];
int offset;
while ((offset = localInputStream.read(arrayOfByte))>0)
{
localFileOutputStream.write(arrayOfByte, 0, offset);
}
localFileOutputStream.close();
localInputStream.close();
Log.d("EPub", fileName+" copied to phone");
}
catch (IOException localIOException)
{
localIOException.printStackTrace();
Log.d("EPub", "failed to copy");
return;
}
}
public void copyBookToDevice(String fileName)
{
try
{
String path = this.getFilesDir().getAbsolutePath() + "/books/"+fileName;
File file = new File(path);
if (file.exists()) return;
InputStream localInputStream = this.getAssets().open("books/"+fileName);
FileOutputStream localFileOutputStream = new FileOutputStream(this.getFilesDir().getAbsolutePath() + "/books/"+fileName);
byte[] arrayOfByte = new byte[1024];
int offset;
while ((offset = localInputStream.read(arrayOfByte))>0)
{
localFileOutputStream.write(arrayOfByte, 0, offset);
}
localFileOutputStream.close();
localInputStream.close();
Log.d("EPub", fileName+" copied to phone");
}
catch (IOException localIOException)
{
localIOException.printStackTrace();
Log.d("EPub", "failed to copy");
return;
}
}
public void copyFontToDevice(String fileName)
{
try
{
String path = this.getFilesDir().getAbsolutePath() + "/books/fonts/"+fileName;
File file = new File(path);
if (file.exists()) return;
InputStream localInputStream = this.getAssets().open("fonts/"+fileName);
FileOutputStream localFileOutputStream = new FileOutputStream(this.getFilesDir().getAbsolutePath() + "/books/fonts/"+fileName);
byte[] arrayOfByte = new byte[1024];
int offset;
while ((offset = localInputStream.read(arrayOfByte))>0)
{
localFileOutputStream.write(arrayOfByte, 0, offset);
}
localFileOutputStream.close();
localInputStream.close();
Log.d("epub", fileName+" copied to phone");
}
catch (IOException localIOException)
{
localIOException.printStackTrace();
Log.d("epub", "failed to copy");
return;
}
}
class ContentHandler implements ContentListener
{
public long getLength(String baseDirectory,String contentPath)
{
String path = baseDirectory + "/" + contentPath;
File file = new File(path);
if (file.exists())
{
return file.length();
}
else
{
return 0;
}
}
public boolean isExists(String baseDirectory,String contentPath)
{
String path = baseDirectory +"/"+ contentPath;
File file = new File(path);
boolean res = false;
Log.w("EPub",contentPath);
if (file.exists())
{
res = true;
}
else
{
res = false;
}
return res;
}
public long getLastModified(String baseDirectory,String contentPath)
{
String path = baseDirectory + "/" + contentPath;
File file = new File(path);
if (file.exists())
{
return file.lastModified();
}
else
{
return 0;
}
}
public InputStream getInputStream(String baseDirectory,String contentPath)
{
String path = baseDirectory + "/" + contentPath;
File file = new File(path);
try
{
FileInputStream fis = new FileInputStream(file);
return fis;
}
catch(Exception e)
{
return null;
}
}
}
用于android 2.3.5的logcat - HTC Chacha
01-26 08:40:04.180: I/System.out(4980): Absolute Path: /data/data/com.mehdok.epubtest/files
01-26 08:40:04.180: I/System.out(4980): File Dir: /data/data/com.mehdok.epubtest/files
01-26 08:40:04.180: D/EPub(4980): /data/data/com.mehdok.epubtest/files/scripts
01-26 08:40:04.180: D/EPub(4980): /data/data/com.mehdok.epubtest/files/images
01-26 08:40:04.190: D/EPub(4980): /data/data/com.mehdok.epubtest/files/covers
01-26 08:40:04.260: D/EPub(4980): PagesCenter.png copied to phone
01-26 08:40:04.270: D/EPub(4980): PagesStack.png copied to phone
01-26 08:40:04.270: D/EPub(4980): /data/data/com.mehdok.epubtest/files/downloads
01-26 08:40:04.270: D/EPub(4980): /data/data/com.mehdok.epubtest/files/books
01-26 08:40:04.330: D/EPub(4980): /data/data/com.mehdok.epubtest/files/books/fonts
01-26 08:40:04.520: D/EPub(4980): AliceinWonderland.epub copied to phone
01-26 08:40:04.520: D/szipinf(4980): Initializing inflate state
01-26 08:40:04.520: D/szipinf(4980): Initializing zlib to inflate
01-26 08:40:04.991: D/epub(4980): arial.ttf copied to phone
01-26 08:40:04.991: D/szipinf(4980): Initializing inflate state
01-26 08:40:04.991: D/szipinf(4980): Initializing zlib to inflate
01-26 08:40:05.071: D/epub(4980): simpo.ttf copied to phone
01-26 08:40:05.071: D/szipinf(4980): Initializing inflate state
01-26 08:40:05.111: D/szipinf(4980): Initializing zlib to inflate
01-26 08:40:05.321: D/epub(4980): tahoma.ttf copied to phone
01-26 08:40:05.321: D/szipinf(4980): Initializing inflate state
01-26 08:40:05.321: D/szipinf(4980): Initializing zlib to inflate
01-26 08:40:05.701: D/epub(4980): times.ttf copied to phone
01-26 08:40:05.821: I/dalvikvm(4980): Could not find method android.view.Display.getRealMetrics, referenced from method com.skytree.epub.br.getRawHeight
01-26 08:40:05.821: W/dalvikvm(4980): VFY: unable to resolve virtual method 4610: Landroid/view/Display;.getRealMetrics (Landroid/util/DisplayMetrics;)V
01-26 08:40:05.821: D/dalvikvm(4980): VFY: replacing opcode 0x6e at 0x001a
01-26 08:40:05.831: D/dalvikvm(4980): VFY: dead code 0x001d-0020 in Lcom/skytree/epub/br;.getRawHeight ()I
01-26 08:40:05.831: I/dalvikvm(4980): Could not find method android.view.Display.getRealMetrics, referenced from method com.skytree.epub.br.getRawWidth
01-26 08:40:05.831: W/dalvikvm(4980): VFY: unable to resolve virtual method 4610: Landroid/view/Display;.getRealMetrics (Landroid/util/DisplayMetrics;)V
01-26 08:40:05.831: D/dalvikvm(4980): VFY: replacing opcode 0x6e at 0x001a
01-26 08:40:05.831: D/dalvikvm(4980): VFY: dead code 0x001d-0020 in Lcom/skytree/epub/br;.getRawWidth ()I
01-26 08:40:05.911: D/Database(4980): dbopen(): path = /data/data/com.mehdok.epubtest/databases/webview.db, flag = 6, cannot stat file, errno: 2,message: No such file or directory
01-26 08:40:05.911: D/Database(4980): dbopen(): path = /data/data/com.mehdok.epubtest/databases/webview.db, mode: delete, disk free size: 26 M, handle: 0x267730
01-26 08:40:05.982: D/Database(4980): dbopen(): path = /data/data/com.mehdok.epubtest/databases/webviewCache.db, flag = 6, cannot stat file, errno: 2,message: No such file or directory
01-26 08:40:05.982: D/Database(4980): dbopen(): path = /data/data/com.mehdok.epubtest/databases/webviewCache.db, mode: delete, disk free size: 26 M, handle: 0x283068
01-26 08:40:06.072: D/qct(4980): [RequestQueue.ActivePool.ActivePool] >> Enable Shutdown = false
01-26 08:40:06.072: D/qct(4980): [IdleCache.IdleCache] >> IDLE_CACHE_MAX = 40
01-26 08:40:06.112: D/qct(4980): [PreConnectionManager.PreConnectionManager] >> TCP_PRE_CONNECT = false
01-26 08:40:06.172: D/skia(4980): htcFlashPlugin::htcFlashPlugin
01-26 08:40:06.172: D/qct(4980): [WebView.WebView] >> Enable Shutdown = false
01-26 08:40:06.182: D/skia(4980): htcFlashPlugin::htcFlashPlugin
01-26 08:40:06.182: D/qct(4980): [WebView.WebView] >> Enable Shutdown = false
01-26 08:40:06.192: D/skia(4980): htcFlashPlugin::htcFlashPlugin
01-26 08:40:06.192: D/qct(4980): [WebView.WebView] >> Enable Shutdown = false
01-26 08:40:06.262: D/dalvikvm(4980): GC_EXTERNAL_ALLOC freed 177K, 43% free 3156K/5447K, external 0K/0K, paused 51ms
01-26 08:40:06.262: D/qct(4980): [PreConnectionManager.PreConnectionManager] >> TCP_PRE_CONNECT = false
01-26 08:40:06.272: D/qct(4980): [PreConnectionManager.PreConnectionManager] >> TCP_PRE_CONNECT = false
01-26 08:40:06.322: D/dalvikvm(4980): GC_EXTERNAL_ALLOC freed 19K, 42% free 3173K/5447K, external 6K/512K, paused 45ms
01-26 08:40:06.442: D/ATRecorder(4980): com.htc.autotest.dlib.RecordEngine in loader dalvik.system.DexClassLoader@40540e00
01-26 08:40:06.692: D/libEGL(4980): loaded /system/lib/egl/libGLES_android.so
01-26 08:40:06.742: D/libEGL(4980): loaded /system/lib/egl/libEGL_adreno200.so
01-26 08:40:06.832: D/libEGL(4980): loaded /system/lib/egl/libGLESv1_CM_adreno200.so
01-26 08:40:06.832: D/libEGL(4980): loaded /system/lib/egl/libGLESv2_adreno200.so
01-26 08:40:06.872: E/Adreno200-ES20(4980): override1= 0xfffffffe, override2= 0xfff *
logcat for android 4.4 - 模拟器
01-26 08:47:22.760: I/System.out(1183): Absolute Path: /data/data/com.mehdok.epubtest/files
01-26 08:47:22.760: I/System.out(1183): File Dir: /data/data/com.mehdok.epubtest/files
01-26 08:47:22.770: D/EPub(1183): /data/data/com.mehdok.epubtest/files/scripts
01-26 08:47:22.810: D/EPub(1183): /data/data/com.mehdok.epubtest/files/images
01-26 08:47:22.810: D/EPub(1183): /data/data/com.mehdok.epubtest/files/covers
01-26 08:47:22.900: D/EPub(1183): PagesCenter.png copied to phone
01-26 08:47:22.940: D/EPub(1183): PagesStack.png copied to phone
01-26 08:47:22.940: D/EPub(1183): /data/data/com.mehdok.epubtest/files/downloads
01-26 08:47:22.960: D/EPub(1183): /data/data/com.mehdok.epubtest/files/books
01-26 08:47:22.960: D/EPub(1183): /data/data/com.mehdok.epubtest/files/books/fonts
01-26 08:47:23.090: D/EPub(1183): AliceinWonderland.epub copied to phone
01-26 08:47:23.980: D/epub(1183): arial.ttf copied to phone
01-26 08:47:24.040: D/epub(1183): simpo.ttf copied to phone
01-26 08:47:24.320: D/epub(1183): tahoma.ttf copied to phone
01-26 08:47:24.670: D/epub(1183): times.ttf copied to phone
01-26 08:47:24.850: V/WebViewChromium(1183): Binding Chromium to the background looper Looper{b3d68530}
01-26 08:47:24.860: I/chromium(1183): [INFO:library_loader_hooks.cc(112)] Chromium logging enabled: level = 0, default verbosity = 0
01-26 08:47:24.870: I/BrowserProcessMain(1183): Initializing chromium process, renderers=0
01-26 08:47:25.010: W/chromium(1183): [WARNING:proxy_service.cc(888)] PAC support disabled because there is no system implementation
01-26 08:47:25.020: D/(1183): HostConnection::get() New Host Connection established 0xb7b15d98, tid 1183
01-26 08:47:26.200: D/dalvikvm(1183): GC_FOR_ALLOC freed 126K, 7% free 2893K/3104K, paused 49ms, total 51ms
01-26 08:47:26.210: I/dalvikvm-heap(1183): Grow heap (frag case) to 3.509MB for 635812-byte allocation
01-26 08:47:26.290: D/dalvikvm(1183): GC_FOR_ALLOC freed 1K, 6% free 3512K/3728K, paused 74ms, total 74ms
01-26 08:47:26.510: W/ContentSettingsAdapter(1183): setDefaultZoom not supported, zoom=FAR
01-26 08:47:26.560: W/ContentSettingsAdapter(1183): setDefaultZoom not supported, zoom=FAR
01-26 08:47:26.610: W/ContentSettingsAdapter(1183): setDefaultZoom not supported, zoom=FAR
01-26 08:47:26.820: D/dalvikvm(1183): GC_FOR_ALLOC freed 33K, 4% free 3605K/3728K, paused 33ms, total 34ms
01-26 08:47:26.830: I/dalvikvm-heap(1183): Grow heap (frag case) to 4.107MB for 532496-byte allocation
01-26 08:47:26.910: D/dalvikvm(1183): GC_FOR_ALLOC freed <1K, 3% free 4125K/4252K, paused 73ms, total 74ms
01-26 08:47:27.670: W/EGL_emulation(1183): eglSurfaceAttrib not implemented
01-26 08:47:27.680: D/OpenGLRenderer(1183): Enabling debug mode 0
01-26 08:47:27.970: D/(1183): HostConnection::get() New Host Connection established 0xb7b38c40, tid 1211
01-26 08:47:28.070: W/AwContents(1183): nativeOnDraw failed; clearing to background color.
01-26 08:47:28.100: W/AwContents(1183): nativeOnDraw failed; clearing to background color.
01-26 08:47:28.100: W/AwContents(1183): nativeOnDraw failed; clearing to background color.
01-26 08:47:29.980: W/AwContents(1183): nativeOnDraw failed; clearing to background color.
01-26 08:47:29.990: W/AwContents(1183): nativeOnDraw failed; clearing to background color.
01-26 08:47:29.990: W/AwContents(1183): nativeOnDraw failed; clearing to background color.
01-26 08:47:30.910: I/Choreographer(1183): Skipped 54 frames! The application may be doing too much work on its main thread.
01-26 08:47:30.910: W/AwContents(1183): nativeOnDraw failed; clearing to background color.
01-26 08:47:30.910: W/AwContents(1183): nativeOnDraw failed; clearing to background color.
01-26 08:41:52.646: D/AndroidRuntime(4980): Shutting down VM
01-26 08:41:52.646: W/dalvikvm(4980): threadid=1: thread exiting with uncaught exception (group=0x400205a0)
01-26 08:41:52.666: E/AndroidRuntime(4980): FATAL EXCEPTION: main
01-26 08:41:52.666: E/AndroidRuntime(4980): java.lang.NullPointerException
01-26 08:41:52.666: E/AndroidRuntime(4980): at com.skytree.epub.ec.b(Unknown Source)
01-26 08:41:52.666: E/AndroidRuntime(4980): at com.skytree.epub.br.m(Unknown Source)
01-26 08:41:52.666: E/AndroidRuntime(4980): at com.skytree.epub.br.onDetachedFromWindow(Unknown Source)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.View.dispatchDetachedFromWindow(View.java:6235)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1250)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1248)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1248)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1248)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1248)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.ViewRoot.dispatchDetachedFromWindow(ViewRoot.java:1862)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.ViewRoot.doDie(ViewRoot.java:2940)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.ViewRoot.die(ViewRoot.java:2910)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.WindowManagerImpl.removeViewImmediate(WindowManagerImpl.java:254)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.view.Window$LocalWindowManager.removeViewImmediate(Window.java:445)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3182)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.app.ActivityThread.access$2100(ActivityThread.java:132)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1071)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.os.Handler.dispatchMessage(Handler.java:99)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.os.Looper.loop(Looper.java:150)
01-26 08:41:52.666: E/AndroidRuntime(4980): at android.app.ActivityThread.main(ActivityThread.java:4293)
01-26 08:41:52.666: E/AndroidRuntime(4980): at java.lang.reflect.Method.invokeNative(Native Method)
01-26 08:41:52.666: E/AndroidRuntime(4980): at java.lang.reflect.Method.invoke(Method.java:507)
01-26 08:41:52.666: E/AndroidRuntime(4980): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
01-26 08:41:52.666: E/AndroidRuntime(4980): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
01-26 08:41:52.666: E/AndroidRuntime(4980): at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：3)
您只需要在您的基本目录中解压缩您的epub书（在您的情况下是/ book / filename）。 您必须将books文件夹中的epub文件解压缩为epub文件名。
您可以在下面的链接中看到完整的演示
http://www.skytree21.com/cgi-bin/download.php?os=android&version=3.9.8&type=core_sample
在Demo中，在LocalService类中，您将获得解压缩文件的代码。 在这个演示中，他们从网上下载了epub文件，首先下载后将其移动到手机目录中的下载文件夹，然后将其解压缩到手机目录中的基本目录书籍，然后skyepub SDK将通过设置setBaseDirectory直接获取其路径。以下是将资产文件移动到下载文件夹到手机目录后解压缩文件的代码
public void unzipBook(String fileName) {
String targetDir = new String(getFilesDir().getAbsolutePath() + "/books/" + fileName);
targetDir = SkyUtility.removeExtention(targetDir);
String filePath = new String(getFilesDir().getAbsolutePath() + "/downloads");
Unzip unzip = new Unzip(fileName, filePath, targetDir);
unzip.addObserver(new UnzipHandler());
unzip.unzip();
}
class UnzipHandler implements Observer {
@Override
public void update(Observable observable, Object data) {
//Unzip completed
(new Handler()).postDelayed(new Runnable() {
public void run() {
}
},500);
}
}
在您的情况下，您只需要获取资产参考并解压缩即可。您将获得成功。