my write code
public static void writeFBTagToCache(long crc64) {
try {
ArrayList<tagStruct> tags = mItem.getTags();
if(tags == null || tags.size() <= 0) {
Log.d(TAG, "tags is null + " + mItem.mGuid);
return;
}
int size = tags.size();
File tempFile = null;
final String tempFilePath = FB_TAG_CACHE;
String prefix = crc64 + "";
tempFile = File.createTempFile(prefix, ".cache", new
File(tempFilePath));
final FileOutputStream fileOutput = new FileOutputStream(tempFile);
final BufferedOutputStream bufferedOutput = new
BufferedOutputStream(fileOutput, 1024);
final DataOutputStream dataOutput = new
DataOutputStream(bufferedOutput);
try {
for(int i = 0; i < size; i++) {
tagStruct tag = tags.get(i);
dataOutput.writeInt(size);
dataOutput.writeFloat(tag.mXcoord);
dataOutput.writeFloat(tag.mYcoord);
Utils.writeUTF(dataOutput, tag.mTag);
}
if(dataOutput != null) {
dataOutput.close();
bufferedOutput.close();
fileOutput.close();
}
} catch (Exception e) {
// Was unable to perform the operation, we delete the temp file
Log.e(TAG, "Unable to write the index file " + crc64);
tempFile.delete();
}
}catch(IOException e) {
e.printStackTrace();
}
}
-------------------------------------------------------------------------------------------------
my read code
public static ArrayList<tagStruct> createFBTagFromCache(long crc64) {
Log.e("harvey", "create facebook tag from cache");
try {
File tempFile = null;
final String tempFilePath = FB_TAG_CACHE;
String prefix = crc64 + "";
tempFile = File.createTempFile(prefix, ".cache", new
File(tempFilePath));
FileInputStream fileInput = new FileInputStream(tempFile);
BufferedInputStream buf = new BufferedInputStream(fileInput);
final DataInputStream dataInput = new DataInputStream(buf);
try {
int size = dataInput.readInt();
ArrayList<tagStruct> tags = new ArrayList<tagStruct>(size);
for(int i = 0; i < size; i++) {
tagStruct tag = new tagStruct();
if(i!=0) {
int laji = dataInput.readInt();
}
tag.mXcoord = dataInput.readFloat();
tag.mYcoord = dataInput.readFloat();
tag.mTag = dataInput.readUTF();
tags.add(tag);
}
dataInput.close();
return tags;
} catch (Exception e) {
dataInput.close();
return null;
}
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
---------------------------------------------------------------------------------------------
Exceptoin cause following:
05-05 13:32:50.058: WARN/System.err(5268): java.io.EOFException
05-05 13:32:50.058: WARN/System.err(5268): at
java.io.DataInputStream.readInt(DataInputStream.java:287)
05-05 13:32:50.058: WARN/System.err(5268): at
com.cooliris.media.UriTexture.createFrTagFromCache(UriTexture.java:455)
05-05 13:32:50.058: WARN/System.err(5268): at
com.cooliris.media.UriTexture.createFromUri(UriTexture.java:185)
05-05 13:32:50.058: WARN/System.err(5268): at
com.cooliris.media.UriTexture.load(UriTexture.java:362)
05-05 13:32:50.058: WARN/System.err(5268): at
com.cooliris.media.RenderView.loadTextureAsync(RenderView.java:308)
05-05 13:32:50.058: WARN/System.err(5268): at
com.cooliris.media.RenderView.access$6(RenderView.java:306)
05-05 13:32:50.058: WARN/System.err(5268): at
com.cooliris.media.RenderView$TextureLoadThread.load(RenderView.java:1176)
05-05 13:32:50.058: WARN/System.err(5268): at
com.cooliris.media.RenderView$TextureLoadThread.run(RenderView.java:1160)
05-05 13:32:50.259: WARN/System.err(5268): java.io.EOFException
05-05 13:32:50.259: WARN/System.err(5268): at
java.io.DataInputStream.readInt(DataInputStream.java:287)
05-05 13:32:50.259: WARN/System.err(5268): at
com.cooliris.media.UriTexture.createFrTagFromCache(UriTexture.java:455)
05-05 13:32:50.259: WARN/System.err(5268): at
com.cooliris.media.UriTexture.getTag(UriTexture.java:689)
05-05 13:32:50.259: WARN/System.err(5268): at
com.cooliris.media.RenderView.drawTag(RenderView.java:251)
05-05 13:32:50.259: WARN/System.err(5268): at
com.cooliris.media.RenderView.uploadTexture(RenderView.java:613)
05-05 13:32:50.259: WARN/System.err(5268): at
com.cooliris.media.RenderView.processTextures(RenderView.java:580)
05-05 13:32:50.259: WARN/System.err(5268): at
com.cooliris.media.RenderView.onDrawFrame(RenderView.java:755)
05-05 13:32:50.259: WARN/System.err(5268): at
android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1363)
05-05 13:32:50.259: WARN/System.err(5268): at
android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1118)
-------------------------------------------------------------------------
why??
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