相机-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_41880253/article/details/82833359

本文介绍了一个Fragment中实现图片选择功能的方法，包括从相机拍摄照片、从相册选取图片以及图片的裁剪处理。通过PopupWindow弹出菜单供用户选择来源，使用Intent启动相机和相册，并通过自定义的Intent进行图片裁剪。

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public class Frag04 extends Fragment{

   private View view;
   private ImageView image;

   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container,
           Bundle savedInstanceState) {
       view = inflater.inflate(R.layout.frag04, container, false);
       //控件
       image = (ImageView) view.findViewById(R.id.image);


       //点击弹框
       image.setOnClickListener(new OnClickListener() {

           @Override
           public void onClick(View v) {
               // TODO Auto-generated method stub
               View popView = View.inflate(getActivity(), R.layout.pop_item, null);
               PopupWindow pop = new PopupWindow(popView, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
               pop.showAsDropDown(v, 0, 0);

               //相机
               popView.findViewById(R.id.btn_camera).setOnClickListener(new OnClickListener() {

                   @Override
                   public void onClick(View v) {

                       Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                       intent.addCategory("android.intent.category.DEFAULT");
                       startActivityForResult(intent, 1);


                   }
               });
               //相册
               popView.findViewById(R.id.btn_image).setOnClickListener(new OnClickListener() {

                   @Override
                   public void onClick(View v) {
                       // TODO Auto-generated method stub
                       Intent intent2 = new Intent(Intent.ACTION_PICK);
                       intent2.setType("image/*");
                       startActivityForResult(intent2, 2);

                   }
               });
               pop.dismiss();



           }
       });



       return view;
   }
   @Override
   public void onActivityResult(int requestCode, int resultCode, Intent data) {
       // TODO Auto-generated method stub
       super.onActivityResult(requestCode, resultCode, data);
       switch (requestCode) {
       case 1:
           Bitmap bitmap = data.getParcelableExtra("data");
           image.setImageBitmap(bitmap);

           break;
       case 2:
           Uri uri = data.getData();
           Intent crop = crop(uri);
           startActivityForResult(crop, 3);
           break;
       case 3:
           Bitmap bitmap2=(Bitmap) data.getExtras().get("data");
           image.setImageBitmap(bitmap2);
           break;

       }
   }
   public Intent crop(Uri uri) {

       Intent intent = new Intent("com.android.camera.action.CROP");
       //
       intent.setDataAndType(uri, "image/*");
       //截图
       intent.putExtra("crop", true);
       //比例
       intent.putExtra("aspectX", 1);
       intent.putExtra("aspectY", 1);
       //宽高
       intent.putExtra("outputX", 250);
       intent.putExtra("outputY", 250);
       //储存类型
       intent.putExtra("outputFormat", "JPEG");
       //返回类型
       intent.putExtra("return-data", true);

       return intent;

   }



}