我要转换文件：///storage/sdcard0/blue.jpg内容：//媒体/外部/图像/ android的媒体/ 3163

问题描述

我要上传图片，音频和视频文件从我的应用程序。如果我选择使用图片库（内容：//媒体/外部/图像/媒体/ 3163 ），它工作正常，但如果我选择使用文件管理器（文件：///storage/sdcard0/blue.jpg ），它不工作

I want to upload image, audio and video files from my app. If I select image using Gallery (content://media/external/images/media/3163) it works fine, but if I select using File Manager (file:///storage/sdcard0/blue.jpg) it is not working.

uri=intent.getData();
String[] filePathColumn = { MediaStore.Images.ImageColumns.DATA };
if (uri != null) {
     Cursor cursor = RootActivity.rootContext.getContentResolver().query(Uri.parse(uri),filePathColumn, null, null, null);
}

///storage/sdcard0/blue.jpg ，任何一个可以帮助我

The cursor returns null if uri = file:///storage/sdcard0/blue.jpg, can any one help me?

光标如果 URI =文件返回null？

在此先感谢

Thanks in advance

推荐答案

试用如下：

button.setOnClickListener(new OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(
                    Intent.createChooser(intent, "Select Picture"),
                    SELECT_PICTURE);
        }
    });

和您的活动添加两个方法

and add two methods in your activity

  public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == RESULT_OK) {
        if (requestCode == SELECT_PICTURE) {

            Uri selectedImageUri = data.getData();
            String s1 = data.getDataString();
            //String s1 = selectedImageUri.getPath();
            Log.e("GetPath",s1);
            Log.e("OK",""+selectedImageUri);

            selectedImagePath = getPath(selectedImageUri);
            if(selectedImagePath==null && s1 != null)
            {
                selectedImagePath = s1.replaceAll("file://","");
            }

            Intent intent = new Intent(this, PhotoEditorActivity.class);
            intent.putExtra("path", selectedImagePath);
            startActivity(intent);
            finish();

        }
                  }
               }


//Return the path of the file.
   public String getPath(Uri uri) {

    try{
    String[] projection = { MediaStore.Images.Media.DATA };
    Log.e("OK 1",""+projection);
    Cursor cursor = managedQuery(uri, projection, null, null, null);
    Log.e("OK 2",""+cursor);
    if(cursor==null)
    {
        return null;

    }
    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    Log.e("OK 3",""+column_index);
    cursor.moveToFirst();
    Log.e("OK 4",""+cursor.getString(column_index));
    return cursor.getString(column_index);
    }
    catch(Exception e)
    {
        Toast.makeText(PhotoActivity.this, "Image is too big in resolution please try again", 5).show();
        return null;
    }

}

和添加此INT作为类成员

and add this int as class member

  private static final int SELECT_PICTURE = 1;

我希望这会帮助你。

I hope it will help you.

感谢。

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