jeasonlzy/ImagePicker

	compile 'com.lzy.widget:imagepicker:0.6.1'  //指定版本

public class PicassoImageLoader implements ImageLoader {

    @Override
    public void displayImage(Activity activity, String path, ImageView imageView, int width, int height) {
        Picasso.with(activity)//
                   .load(Uri.fromFile(new File(path)))//
                .placeholder(R.mipmap.default_image)//
                .error(R.mipmap.default_image)//
                .resize(width, height)//
                .centerInside()//
                .memoryPolicy(MemoryPolicy.NO_CACHE, MemoryPolicy.NO_STORE)//
                .into(imageView);
    }

    @Override
    public void clearMemoryCache() {
        //这里是清除缓存的方法,根据需要自己实现
    }
}

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_image_picker);
    
    ImagePicker imagePicker = ImagePicker.getInstance();
    imagePicker.setImageLoader(new PicassoImageLoader());   //设置图片加载器
    imagePicker.setShowCamera(true);  //显示拍照按钮
    imagePicker.setCrop(true);        //允许裁剪（单选才有效）
    imagePicker.setSaveRectangle(true); //是否按矩形区域保存
    imagePicker.setSelectLimit(9);    //选中数量限制
    imagePicker.setStyle(CropImageView.Style.RECTANGLE);  //裁剪框的形状
    imagePicker.setFocusWidth(800);   //裁剪框的宽度。单位像素（圆形自动取宽高最小值）
    imagePicker.setFocusHeight(800);  //裁剪框的高度。单位像素（圆形自动取宽高最小值）
    imagePicker.setOutPutX(1000);//保存文件的宽度。单位像素
    imagePicker.setOutPutY(1000);//保存文件的高度。单位像素
}

public void onClick(View v) {
        Intent intent = new Intent(this, ImageGridActivity.class);
        startActivityForResult(intent, IMAGE_PICKER);  
    }
}

Intent intent = new Intent(this, ImageGridActivity.class);
intent.putExtra(ImageGridActivity.EXTRAS_TAKE_PICKERS,true); // 是否是直接打开相机
      startActivityForResult(intent, REQUEST_CODE_SELECT);

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == ImagePicker.RESULT_CODE_ITEMS) {
        if (data != null && requestCode == IMAGE_PICKER) {
            ArrayList<ImageItem> images = (ArrayList<ImageItem>) data.getSerializableExtra(ImagePicker.EXTRA_RESULT_ITEMS);
            MyAdapter adapter = new MyAdapter(images);
            gridView.setAdapter(adapter);
        } else {
            Toast.makeText(this, "没有数据", Toast.LENGTH_SHORT).show();
        }
    }
}

 Copyright 2016 jeasonlzy(廖子尧)

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.