Java me 内存不足错误将图像加载到库时本机图像解码错误
我正在尝试将图像从文件夹加载到我的应用程序中,我使用的代码是Java me 内存不足错误将图像加载到库时本机图像解码错误,java-me,Java Me,我正在尝试将图像从文件夹加载到我的应用程序中,我使用的代码是 FileConnection fc = null; DataInputStream in = null; DataOutputStream out = null; try { fc = (FileConnection)Connector.open("file:///e:/Images/Abc.jpg"); int length = (int)fc.fileSize();//possible loss of precision
FileConnection fc = null;
DataInputStream in = null;
DataOutputStream out = null;
try {
fc = (FileConnection)Connector.open("file:///e:/Images/Abc.jpg");
int length = (int)fc.fileSize();//possible loss of precision may throw error
byte[] data = null;
if (length != -1) {
data = new byte[length];
in = new DataInputStream(fc.openInputStream());
in.readFully(data);
}
else {
int chunkSize = 112;
int index = 0;
int readLength = 0;
in = new DataInputStream(fc.openInputStream());
data = new byte[chunkSize];
do {
if (data.length < index + chunkSize) {
byte[] newData = new byte[index + chunkSize];
System.arraycopy(data, 0, newData, 0, data.length);
data = newData;
}
readLength = in.read(data, index, chunkSize);
index += readLength;
} while (readLength == chunkSize);
length = index;
}
Image image = Image.createImage(data, 0, length);
image = createThumbnail(image);
ImageItem imageItem = new ImageItem(null, image, 0, null);
mForm.append(imageItem);
mForm.setTitle("Done.");
fc = (FileConnection)Connector.open("file:///e:/Images/Abc.jpg");
if(!fc.exists()){
try{
fc.create();
}catch(Exception ce){System.out.print("Create Error: " + ce);}
}
out = new DataOutputStream(fc.openOutputStream());
out.write(data);
}
catch (IOException ioe) {
StringItem stringItem = new StringItem(null, ioe.toString());
mForm.append(stringItem);
mForm.setTitle("Done.");
}
finally {
try {
if (in != null) in.close();
if (fc != null) fc.close();
}
catch (IOException ioe) {}
FileConnection fc=null;
DataInputStream in=null;
DataOutputStream out=null;
试一试{
fc=(文件连接)连接器。打开(“file:///e:/Images/Abc.jpg");
int length=(int)fc.fileSize();//可能的精度损失可能引发错误
字节[]数据=null;
如果(长度!=-1){
数据=新字节[长度];
in=新的DataInputStream(fc.openInputStream());
in.readFully(数据);
}
否则{
int chunkSize=112;
int指数=0;
int readLength=0;
in=新的DataInputStream(fc.openInputStream());
数据=新字节[chunkSize];
做{
if(data.length
希望这可能是图像的问题,我试图调整图像的大小
private Image createThumbnail(Image image)
{
int sourceWidth = image.getWidth();
int sourceHeight = image.getHeight();
int thumbWidth = 18;
int thumbHeight = 23;
Image thumb = Image.createImage(thumbWidth, thumbHeight);
Graphics g = thumb.getGraphics();
for (int y = 0; y < thumbHeight; y++)
{
for (int x = 0; x < thumbWidth; x++)
{
g.setClip(x, y, 1, 1);
int dx = x * sourceWidth / thumbWidth;
int dy = y * sourceHeight / thumbHeight;
g.drawImage(image, x - dx, y - dy, Graphics.LEFT | Graphics.TOP);
}
}
Image immutableThumb = Image.createImage(thumb);
return immutableThumb;
}
私有图像创建缩略图(图像)
{
int sourceWidth=image.getWidth();
int sourceHeight=image.getHeight();
int指宽=18;
拇指高度=23;
Image thumb=Image.createImage(拇指宽度、拇指高度);
Graphics g=thumb.getGraphics();
对于(int y=0;y
尽管如此,它还是返回了一个memmory native image deocde错误的异常,请有人帮我整理一下这可能是由于两个原因造成的