android获取手机所有图片

    public ImageFilesBean returnImageFiles() {
        List<String> parentsPthe = new ArrayList<>();
        HashMap<String, String> pathMap = new HashMap<>();
        Cursor cursor = getContentResolver().query(
                MediaStore.Images.Media.EXTERNAL_CONTENT_URI, null, null, null, null);
        while (cursor.moveToNext()) {
            //获取其他图片信息
//            String fileName = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DISPLAY_NAME));
            String filePath = cursor.getString(cursor
                    .getColumnIndex(MediaStore.Images.Media.DATA));
            String parentName = new File(filePath).getParentFile().getAbsolutePath();
            if (!parentsPthe.contains(parentName)) {
                parentsPthe.add(parentName);
                pathMap.put(parentName, filePath);
            }
        }
        cursor.close();
        return ImageFilesBean.returnBean(parentsPthe, pathMap);
    }

package beini.com.ddd;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;



public class ImageFilesBean {
    private List<String> parentsPthe = new ArrayList<>();
    private HashMap<String, String> pathMap = new HashMap<>();

    public List<String> getParentsPthe() {
        return parentsPthe;
    }

    public ImageFilesBean setParentsPthe(List<String> parentsPthe) {
        this.parentsPthe = parentsPthe;
        return this;
    }

    public HashMap<String, String> getPathMap() {
        return pathMap;
    }

    public ImageFilesBean setPathMap(HashMap<String, String> pathMap) {
        this.pathMap = pathMap;
        return this;
    }

    public static ImageFilesBean returnBean(List<String> parentsPthe, HashMap<String, String> pathMap) {
        return new ImageFilesBean().setParentsPthe(parentsPthe).setPathMap(pathMap);
    }
}