Question

我有以下代码可以在Android中浏览SD卡中的文件。 但是如何实现代码，以便可以将选定的文件上传到Amazon S3中的指定存储桶？请帮助，非常感谢。

    package sg.edu.nyp.sit.s3;

    import java.io.File;
    import java.util.ArrayList;
    import java.util.List;
    import android.app.AlertDialog;
    import android.app.ListActivity;
    import android.content.DialogInterface;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.ArrayAdapter;
    import android.widget.ListView;
    import android.widget.TextView;

    public class FilePickS3Activity extends ListActivity {

private List<String> item = null;
private List<String> path = null;
private String root="/";
private TextView myPath;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    myPath = (TextView)findViewById(R.id.path);
    getDir(root);
}

private void getDir(String dirPath)
{
    myPath.setText("Location: " + dirPath);

    item = new ArrayList<String>();
    path = new ArrayList<String>();

    File f = new File(dirPath);
    File[] files = f.listFiles();

    if(!dirPath.equals(root))
    {

        item.add(root);
        path.add(root);

        item.add("../");
        path.add(f.getParent());

    }

    for(int i=0; i < files.length; i++)
    {
            File file = files[i];
            path.add(file.getPath());
            if(file.isDirectory())
                item.add(file.getName() + "/");
            else
                item.add(file.getName());
    }

    ArrayAdapter<String> fileList =
        new ArrayAdapter<String>(this, R.layout.row, item);
    setListAdapter(fileList);
}

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {

    File file = new File(path.get(position));

    if (file.isDirectory())
    {
        if(file.canRead())
            getDir(path.get(position));
        else
        {
            new AlertDialog.Builder(this)
            .setIcon(R.drawable.ic_launcher)
            .setTitle("[" + file.getName() + "] folder can't be read!")
            .setPositiveButton("OK", 
                    new DialogInterface.OnClickListener() {

                        public void onClick(DialogInterface dialog, int which) {
                            // TODO Auto-generated method stub
                        }
                    }).show();
        }
    }
    else
    {
        new AlertDialog.Builder(this)
            .setIcon(R.drawable.ic_launcher)
            .setTitle("[" + file.getName() + "]")
            .setPositiveButton("OK", 
                    new DialogInterface.OnClickListener() {


                        public void onClick(DialogInterface dialog, int which) {
                            // TODO Auto-generated method stub
                        }
                    }).show();
    }
}

}

Answer 1

如果您想以编程方式传输数据，那么您可以使用AWS SDK：

http://aws.amazon.com/de/sdkforandroid/

有一个在线文档，其中包含示例：http://aws.amazon.com/articles/4225549089557252

如何将选定的文件从Android上传到Amazon S3

1 个答案: