选择海报的图像从 - 机器人，如何让尤里斯？ [英] select-multiple-images-from-android,how to get Uris?

问题描述

的描述：的http://www.rqgg.net/topic/vrvkz-select-multiple-images-from-android-gallery.html

如果呼叫者可以处理多个归还物品的话，就可以指定EXTRA_ALLOW_MULTIPLE（执行多个选择用户），以表明这一点。

这是pretty有趣。在这里，他们被它指的是用例，其中用户可以选择多个项目？

  @TargetApi（Build.VERSION_ codeS.JELLY_BEAN_MR2）
    公共无效selectPhotos（）{
        意向意图=新的Intent（）;
        intent.setType（图像/ *）;
        intent.setAction（Intent.ACTION_GET_CONTENT）;
        intent.putExtra（Intent.EXTRA_ALLOW_MULTIPLE，真）;
        startActivityForResult（Intent.createChooser（意向，
                选择多张图像），SELECT_PHOTOS_RESULT）;
    }
保护无效的onActivityResult（INT申请code，INT结果code，意图意图）{        super.onActivityResult（要求code，结果code，意向）;        如果（结果code == RESULT_OK）{            开关（要求code）{
                案例SELECT_PHOTOS_RESULT：
                    //如何获得这些URI？
                    ...
                    打破;        }    }
 

解决方案

也许，我是有点晚了回答这个问题。可以帮助别人谁是寻找一个答案。

 如果（意向！= NULL）{
                ClipData clipData = intent.getClipData（）;
                如果（clipData！= NULL）{
                    的for（int i = 0; I＆LT; clipData.getItemCount（）;我++）{
                        ClipData.Item项= clipData.getItemAt（ⅰ）;
                        URI URI = item.getUri（）;                        //如果你需要的图像的绝对路径
                        字符串路径= getRealPathFromURI（getActivity（），URI）
                    }
                }
            }公共字符串getRealPathFromURI（上下文的背景下，乌里contentUri）{
    光标光标= NULL;
    尝试{
        的String [] = PROJ {MediaStore.Images.Media.DATA};
        光标= context.getContentResolver（）查询（contentUri，凸出，空，
                NULL，NULL）;
        INT与Column_Index =光标
                .getColumnIndexOrThrow（MediaStore.Images.Media.DATA）;
        cursor.moveToFirst（）;
        返回cursor.getString（Column_Index中）;
    } {最后
        如果（指针！= NULL）{
            cursor.close（）;
        }
    }
}
 

the describe: http://www.rqgg.net/topic/vrvkz-select-multiple-images-from-android-gallery.html

If the caller can handle multiple returned items (the user performing multiple selection), then it can specify EXTRA_ALLOW_MULTIPLE to indicate this.

This is pretty interesting. Here they are referring it to the use case where a user can select multiple items?

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
    public void selectPhotos(){
        Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);
        intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
        startActivityForResult(Intent.createChooser(intent,
                "select multiple images"), SELECT_PHOTOS_RESULT);
    }


protected void onActivityResult(int requestCode, int resultCode, Intent intent) {

        super.onActivityResult(requestCode, resultCode, intent);

        if (resultCode == RESULT_OK) {

            switch (requestCode) {
                case SELECT_PHOTOS_RESULT:
                    //how to get the Uris?
                    ...
                    break;

        }

    }

解决方案

Probably, i am little late to answer this. Might help someone who is looking for an answer to this.

    if (intent != null) {
                ClipData clipData = intent.getClipData();
                if (clipData != null) {
                    for (int i = 0; i < clipData.getItemCount(); i++) {
                        ClipData.Item item = clipData.getItemAt(i);
                        Uri uri = item.getUri();

                        //In case you need image's absolute path
                        String path= getRealPathFromURI(getActivity(), uri)
                    }
                }
            }

public String getRealPathFromURI(Context context, Uri contentUri) {
    Cursor cursor = null;
    try {
        String[] proj = { MediaStore.Images.Media.DATA };
        cursor = context.getContentResolver().query(contentUri, proj, null,
                null, null);
        int column_index = cursor
                .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
}

这篇关于选择海报的图像从 - 机器人，如何让尤里斯？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！