上传前压缩相机图像 [英] Compress camera image before upload
本文介绍了上传前压缩相机图像的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用此代码(来自 www.internetria.com) 拍照并上传到服务器:
I am using this code (from www.internetria.com) to take a photo and upload to a server:
创建:
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uri output = Uri.fromFile(new File(foto));
intent.putExtra(MediaStore.EXTRA_OUTPUT, output);
startActivityForResult(intent, TAKE_PICTURE);
onActivityResult:
onActivityResult:
ImageView iv = (ImageView) findViewById(R.id.imageView1);
iv.setImageBitmap(BitmapFactory.decodeFile(foto));
File file = new File(foto);
if (file.exists()) {
UploaderFoto nuevaTarea = new UploaderFoto();
nuevaTarea.execute(foto);
}
else
Toast.makeText(getApplicationContext(), "No se ha realizado la foto", Toast.LENGTH_SHORT).show();
上传者照片:
ProgressDialog pDialog;
String miFoto = "";
@Override
protected Void doInBackground(String... params) {
miFoto = params[0];
try {
HttpClient httpclient = new DefaultHttpClient();
httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
HttpPost httppost = new HttpPost("http://servidor.com/up.php");
File file = new File(miFoto);
MultipartEntity mpEntity = new MultipartEntity();
ContentBody foto = new FileBody(file, "image/jpeg");
mpEntity.addPart("fotoUp", foto);
httppost.setEntity(mpEntity);
httpclient.execute(httppost);
httpclient.getConnectionManager().shutdown();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
而且我想压缩图片,因为尺寸太大了.
And I want to compress the image, because the size is too big.
我不知道如何将 bitmap.compress(Bitmap.CompressFormat.JPEG, 70, fos);
添加到我的应用中
I don't know how to add bitmap.compress(Bitmap.CompressFormat.JPEG, 70, fos);
to my app
推荐答案
看这里:ByteArrayOutputStream到 FileBody
按照这些思路应该可以工作:
Something along these lines should work:
替换
File file = new File(miFoto);
ContentBody foto = new FileBody(file, "image/jpeg");
与
Bitmap bmp = BitmapFactory.decodeFile(miFoto)
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bmp.compress(CompressFormat.JPEG, 70, bos);
InputStream in = new ByteArrayInputStream(bos.toByteArray());
ContentBody foto = new InputStreamBody(in, "image/jpeg", "filename");
如果文件大小仍然是个问题,除了压缩图片之外,您可能还需要缩放图片.
If file size is still an issue you may want to scale the picture in addition to compressing it.
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