得到画廊所有图像 [英] Get all Images in Gallery

问题描述

我开发的，我想，当用户点击按钮选择图片，它应该是能够查看绘制文件夹的所有图像gallaryview或GridView控件的应用程序。我怎样才能做到这一点？然后点击来自电网或画廊观看图片后，我只是混帐的映像路径和存储到一个变量。我也希望，当我回到previous页我有我的映像路径的所有数据。

解决方案

 公共类GetImageActivity延伸活动{    私有静态最终诠释SELECT_PICTURE = 1;    私人字符串selectedImagePath;
    私人ImageView的IMG;    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.main）;        IMG =（ImageView的）findViewById（R.id.ImageView01）;        （（按钮）findViewById（R.id.Button01））
                .setOnClickListener（新OnClickListener（）{
                    公共无效的onClick（查看为arg0）{
                        意向意图=新的Intent（）;
                        intent.setType（图像/ *）;
                        intent.setAction（Intent.ACTION_GET_CONTENT）;
                        startActivityForResult（Intent.createChooser（意向，选择图片），SELECT_PICTURE）;
                    }
                }）;
    }    公共无效的onActivityResult（INT申请code，INT结果code，意图数据）{
        如果（结果code == RESULT_OK）{
            如果（要求code == SELECT_PICTURE）{
                乌里selectedImageUri = data.getData（）;
                selectedImagePath =的getPath（selectedImageUri）;
                的System.out.println（映像路径：+ selectedImagePath）;
                img.setImageURI（selectedImageUri）;
            }
        }
    }    公共字符串的getPath（URI URI）{
        的String [] =投影{MediaStore.Images.Media.DATA};
        光标光标= managedQuery（URI，投影，NULL，NULL，NULL）;
        INT与Column_Index = cursor.getColumnIndexOrThrow（MediaStore.Images.Media.DATA）;
        cursor.moveToFirst（）;
        返回cursor.getString（Column_Index中）;
    }
}
 

I am developing an application in which I want that When a user clicks on button "select image", it should be able to view all images of drawable folder in gallaryview or gridview. How can I do this? and after clicking on the image from grid or gallery view, I have to just fatch that image path and store into a variable. I also want that when I go back to the previous page I have all my data with the image path.

解决方案

public class GetImageActivity extends Activity {

    private static final int SELECT_PICTURE = 1;

    private String selectedImagePath;
    private ImageView img;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        img = (ImageView)findViewById(R.id.ImageView01);

        ((Button) findViewById(R.id.Button01))
                .setOnClickListener(new OnClickListener() {
                    public void onClick(View arg0) {
                        Intent intent = new Intent();
                        intent.setType("image/*");
                        intent.setAction(Intent.ACTION_GET_CONTENT);
                        startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PICTURE);
                    }
                });
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
            if (requestCode == SELECT_PICTURE) {
                Uri selectedImageUri = data.getData();
                selectedImagePath = getPath(selectedImageUri);
                System.out.println("Image Path : " + selectedImagePath);
                img.setImageURI(selectedImageUri);
            }
        }
    }

    public String getPath(Uri uri) {
        String[] projection = { MediaStore.Images.Media.DATA };
        Cursor cursor = managedQuery(uri, projection, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    }
}

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