Android 选择图片、上传图片之ImagePicker

效果图：

后来又出了两篇，也可以看一下

Android 选择图片、上传图片之PictureSelector

Android 选择图片、上传图片之Matisse

添加依赖：

选择图片：compile 'com.lzy.widget:imagepicker:0.5.4'

github地址：https://github.com/jeasonlzy/ImagePicker

上传文件：compile 'com.zhy:okhttputils:2.6.2'

github地址：https://github.com/hongyangAndroid/okhttputils

MainActivity.java

  

   

    

     

    
    

     

      package com.yechaoa.uploadimage;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      import android.content.Intent;
     
    
   

    

     

    
    

     

      import android.support.v7.app.AppCompatActivity;
     
    
   

    

     

    
    

     

      import android.os.Bundle;
     
    
   

    

     

    
    

     

      import android.support.v7.widget.GridLayoutManager;
     
    
   

    

     

    
    

     

      import android.support.v7.widget.RecyclerView;
     
    
   

    

     

    
    

     

      import android.view.View;
     
    
   

    

     

    
    

     

      import android.widget.AdapterView;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      import com.lzy.imagepicker.ImagePicker;
     
    
   

    

     

    
    

     

      import com.lzy.imagepicker.bean.ImageItem;
     
    
   

    

     

    
    

     

      import com.lzy.imagepicker.ui.ImageGridActivity;
     
    
   

    

     

    
    

     

      import com.lzy.imagepicker.ui.ImagePreviewDelActivity;
     
    
   

    

     

    
    

     

      import com.lzy.imagepicker.view.CropImageView;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      import java.util.ArrayList;
     
    
   

    

     

    
    

     

      import java.util.List;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      import okhttp3.Call;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      public class MainActivity extends AppCompatActivity implements ImagePickerAdapter.OnRecyclerViewItemClickListener{
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    public static final int IMAGE_ITEM_ADD = -1;
     
    
   

    

     

    
    

     
    public static final int REQUEST_CODE_SELECT = 100;
     
    
   

    

     

    
    

     
    public static final int REQUEST_CODE_PREVIEW = 101;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    private ImagePickerAdapter adapter;
     
    
   

    

     

    
    

     
    private ArrayList<ImageItem> selImageList; //当前选择的所有图片
     
    
   

    

     

    
    

     
    private int maxImgCount = 8;               //允许选择图片最大数
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    private HttpUtil httpUtil;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    @Override
     
    
   

    

     

    
    

     
    protected void onCreate(Bundle savedInstanceState) {
     
    
   

    

     

    
    

     
        super.onCreate(savedInstanceState);
     
    
   

    

     

    
    

     

              setContentView(R.layout.activity_main);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              httpUtil = new HttpUtil();
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
     
    
   

    

     

    
    

     
            @Override
     
    
   

    

     

    
    

     
            public void onClick(View v) {
     
    
   

    

     

    
    

     

                      uploadImage(selImageList);
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              });
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        //最好放到 Application oncreate执行
     
    
   

    

     

    
    

     

              initImagePicker();
     
    
   

    

     

    
    

     

              initWidget();
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    private void initImagePicker() {
     
    
   

    

     

    
    

     
        ImagePicker imagePicker = ImagePicker.getInstance();
     
    
   

    

     

    
    

     

              imagePicker.setImageLoader(new GlideImageLoader());   //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(maxImgCount);              //选中数量限制
     
    
   

    

     

    
    

     

              imagePicker.setMultiMode(false);                      //多选
     
    
   

    

     

    
    

     

              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
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    private void initWidget() {
     
    
   

    

     

    
    

     
        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
     
    
   

    

     

    
    

     

              selImageList = new ArrayList<>();
     
    
   

    

     

    
    

     

              adapter = new ImagePickerAdapter(this, selImageList, maxImgCount);
     
    
   

    

     

    
    

     

              adapter.setOnItemClickListener(this);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              recyclerView.setLayoutManager(new GridLayoutManager(this, 4));
     
    
   

    

     

    
    

     

              recyclerView.setHasFixedSize(true);
     
    
   

    

     

    
    

     

              recyclerView.setAdapter(adapter);
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    private SelectDialog showDialog(SelectDialog.SelectDialogListener listener, List<String> names) {
     
    
   

    

     

    
    

     
        SelectDialog dialog = new SelectDialog(this, R.style.transparentFrameWindowStyle, listener, names);
     
    
   

    

     

    
    

     
        if (!this.isFinishing()) {
     
    
   

    

     

    
    

     

                  dialog.show();
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     
        return dialog;
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    @Override
     
    
   

    

     

    
    

     
    public void onItemClick(View view, int position) {
     
    
   

    

     

    
    

     
        switch (position) {
     
    
   

    

     

    
    

     
            case IMAGE_ITEM_ADD:
     
    
   

    

     

    
    

     

                      List<String> names = new ArrayList<>();
     
    
   

    

     

    
    

     

                      names.add("拍照");
     
    
   

    

     

    
    

     

                      names.add("相册");
     
    
   

    

     

    
    

     

                      showDialog(new SelectDialog.SelectDialogListener() {
     
    
   

    

     

    
    

     
                    @Override
     
    
   

    

     

    
    

     
                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
     
    
   

    

     

    
    

     
                        switch (position) {
     
    
   

    

     

    
    

     
                            case 0: // 直接调起相机
     
    
   

    

     

    
    

     
                                //打开选择,本次允许选择的数量
     
    
   

    

     

    
    

     

                                      ImagePicker.getInstance().setSelectLimit(maxImgCount - selImageList.size());
     
    
   

    

     

    
    

     
                                Intent intent = new Intent(MainActivity.this, ImageGridActivity.class);
     
    
   

    

     

    
    

     

                                      intent.putExtra(ImageGridActivity.EXTRAS_TAKE_PICKERS,true); // 是否是直接打开相机
     
    
   

    

     

    
    

     

                                      startActivityForResult(intent, REQUEST_CODE_SELECT);
     
    
   

    

     

    
    

     
                                break;
     
    
   

    

     

    
    

     
                            case 1:
     
    
   

    

     

    
    

     
                                //打开选择,本次允许选择的数量
     
    
   

    

     

    
    

     

                                      ImagePicker.getInstance().setSelectLimit(maxImgCount - selImageList.size());
     
    
   

    

     

    
    

     
                                Intent intent1 = new Intent(MainActivity.this, ImageGridActivity.class);
     
    
   

    

     

    
    

     

                                      startActivityForResult(intent1, REQUEST_CODE_SELECT);
     
    
   

    

     

    
    

     
                                break;
     
    
   

    

     

    
    

     
                            default:
     
    
   

    

     

    
    

     
                                break;
     
    
   

    

     

    
    

     

                              }
     
    
   

    

     

    
    

     

                          }
     
    
   

    

     

    
    

     

                      }, names);
     
    
   

    

     

    
    

     
                break;
     
    
   

    

     

    
    

     
            default:
     
    
   

    

     

    
    

     
                //打开预览
     
    
   

    

     

    
    

     
                Intent intentPreview = new Intent(this, ImagePreviewDelActivity.class);
     
    
   

    

     

    
    

     

                      intentPreview.putExtra(ImagePicker.EXTRA_IMAGE_ITEMS, (ArrayList<ImageItem>) adapter.getImages());
     
    
   

    

     

    
    

     

                      intentPreview.putExtra(ImagePicker.EXTRA_SELECTED_IMAGE_POSITION, position);
     
    
   

    

     

    
    

     

                      intentPreview.putExtra(ImagePicker.EXTRA_FROM_ITEMS,true);
     
    
   

    

     

    
    

     

                      startActivityForResult(intentPreview, REQUEST_CODE_PREVIEW);
     
    
   

    

     

    
    

     
                break;
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    @Override
     
    
   

    

     

    
    

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

    

     

    
    

     
        super.onActivityResult(requestCode, resultCode, data);
     
    
   

    

     

    
    

     
        if (resultCode == ImagePicker.RESULT_CODE_ITEMS) {
     
    
   

    

     

    
    

     
            //添加图片返回
     
    
   

    

     

    
    

     
            if (data != null && requestCode == REQUEST_CODE_SELECT) {
     
    
   

    

     

    
    

     

                      ArrayList<ImageItem> images = (ArrayList<ImageItem>) data.getSerializableExtra(ImagePicker.EXTRA_RESULT_ITEMS);
     
    
   

    

     

    
    

     
                if (images != null){
     
    
   

    

     

    
    

     

                          selImageList.addAll(images);
     
    
   

    

     

    
    

     

                          adapter.setImages(selImageList);
     
    
   

    

     

    
    

     

                      }
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              } else if (resultCode == ImagePicker.RESULT_CODE_BACK) {
     
    
   

    

     

    
    

     
            //预览图片返回
     
    
   

    

     

    
    

     
            if (data != null && requestCode == REQUEST_CODE_PREVIEW) {
     
    
   

    

     

    
    

     

                      ArrayList<ImageItem> images = (ArrayList<ImageItem>) data.getSerializableExtra(ImagePicker.EXTRA_IMAGE_ITEMS);
     
    
   

    

     

    
    

     
                if (images != null){
     
    
   

    

     

    
    

     

                          selImageList.clear();
     
    
   

    

     

    
    

     

                          selImageList.addAll(images);
     
    
   

    

     

    
    

     

                          adapter.setImages(selImageList);
     
    
   

    

     

    
    

     

                      }
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    private String url="http...";
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    private void uploadImage(ArrayList<ImageItem> pathList) {
     
    
   

    

     

    
    

     

              httpUtil.postFileRequest(url, null, pathList, new MyStringCallBack() {
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
            @Override
     
    
   

    

     

    
    

     
            public void onError(Call call, Exception e, int id) {
     
    
   

    

     

    
    

     
                super.onError(call, e, id);
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
            @Override
     
    
   

    

     

    
    

     
            public void onResponse(String response, int id) {
     
    
   

    

     

    
    

     
                super.onResponse(response, id);
     
    
   

    

     

    
    

     
                //返回图片的地址
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              });
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      }
     
    
  
 

Demo地址：https://github.com/yechaoa/UploadImage

文章来源: blog.csdn.net，作者：yechaoa，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/yechaoa/article/details/70919827