android中base64编码期间内存不足异常?
我必须用multipart entity从android上传四张图片到服务器。我用base64解码发送图片。它显示内存不足异常。我已经发布了下面的代码。 请帮我修复这个错误android中base64编码期间内存不足异常?,android,asynchronous,upload,base64,multipartentity,Android,Asynchronous,Upload,Base64,Multipartentity,我必须用multipart entity从android上传四张图片到服务器。我用base64解码发送图片。它显示内存不足异常。我已经发布了下面的代码。 请帮我修复这个错误 private String resize(String path) { ByteArrayOutputStream bAOS; bitmap = BitmapFactory.decodeFile(path); Log.i("RESIZE", "RESIZE"); // Toast.make
private String resize(String path) {
ByteArrayOutputStream bAOS;
bitmap = BitmapFactory.decodeFile(path);
Log.i("RESIZE", "RESIZE");
// Toast.makeText(getApplicationContext(), "resizing first image",
// Toast.LENGTH_LONG).show();
String encodedImage;
byte[] imageBytes;
try {
Log.d("ActivityNewsDisplay", "inside try one");
bAOS = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 80, bAOS);
imageBytes = bAOS.toByteArray();
encodedImage = Base64.encodeToString(imageBytes, Base64.DEFAULT);
return encodedImage;
} catch (Exception e) {
Log.d("ActivityNewsDisplay", "inside catch one");
// TODO: handle exception
return null;
} catch (OutOfMemoryError e) {
try {
Log.d("ActivityNewsDisplay", "inside catch one");
Log.d("ActivityNewsDisplay", "inside try two");
bAOS = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 25, bAOS);
imageBytes = bAOS.toByteArray();
encodedImage = Base64
.encodeToString(imageBytes, Base64.DEFAULT);
return encodedImage;
} catch (OutOfMemoryError e1) {
Log.d("ActivityNewsDisplay", "inside catch two");
try {
Log.d("ActivityNewsDisplay", "inside try three");
bAOS = new ByteArrayOutputStream();
Toast.makeText(getApplicationContext(), "resize one",
Toast.LENGTH_LONG).show();
bitmap.compress(Bitmap.CompressFormat.JPEG, 10, bAOS);
imageBytes = bAOS.toByteArray();
encodedImage = Base64.encodeToString(imageBytes,
Base64.DEFAULT);
return encodedImage; // TODO: handle exception
} catch (Exception e2) {
Log.d("ActivityNewsDisplay", "inside catch three");
return null;
}
}
}
}
我在异步任务中调用此函数
@Override
protected String doInBackground(String... params) {
Log.i("inside asynchronous task", "inside task");
// TODO Auto-generated method stub
decodedImage = new String[params.length];
for (int i = 0; i < params.length; i++) {
decodedImage[i] = resize(params[i]);
}
publishProgress("progress");
return null;
}
@覆盖
受保护的字符串doInBackground(字符串…参数){
Log.i(“内部异步任务”、“内部任务”);
//TODO自动生成的方法存根
decodedImage=新字符串[参数长度];
对于(int i=0;i
当图像大小较大时会发生内存不足异常?当应用程序的堆大小超过为应用程序分配的内存时,会发生内存不足异常。您需要缩小位图,但缩放位图可能会降低图像质量。。我建议你看看这里的链接