Question

ProgressDialog怎么设置进度值为小数

Answer 1

实现在android实现带进度条的上传效果效果如图：

用到以下两个类就可实现带进度条的文件上传：

1、CustomMultiPartEntity extends MultipartEntity,

2、HttpMultipartPost extends AsyncTask

代码如下：

import java.io.FilterOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.nio.charset.Charset;

import org.apache.http.entity.mime.HttpMultipartMode;

import org.apache.http.entity.mime.MultipartEntity;

public class CustomMultipartEntity extends MultipartEntity {

private final ProgressListener listener;

public CustomMultipartEntity(final ProgressListener listener) {

super();

this.listener = listener;

}

public CustomMultipartEntity(final HttpMultipartMode mode, final ProgressListener listener) {

super(mode);

this.listener = listener;

}

public CustomMultipartEntity(HttpMultipartMode mode, final String boundary,

final Charset charset, final ProgressListener listener) {

super(mode, boundary, charset);

this.listener = listener;

}

@Override

public void writeTo(final OutputStream outstream) throws IOException {

super.writeTo(new CountingOutputStream(outstream, this.listener));

}

public static interface ProgressListener {

void transferred(long num);

}