Android仿微信发朋友圈浏览图片效果

图片Fragment的详细界面，里面有长按点击事件，和图片加载的状态

package com.hankkin.WeiXinLookImgsDemo.activty;

import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.hankkin.WeiXinLookImgsDemo.R;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.assist.FailReason;
import com.nostra13.universalimageloader.core.listener.SimpleImageLoadingListener;
import com.others.PhotoViewAttacher;

/**
 * 单张图片显示Fragment
 */
public class ImageDetailFragment extends Fragment {
  private String mImageUrl;
  private ImageView mImageView;
  private ProgressBar progressBar;
  private PhotoViewAttacher mAttacher;

  public static ImageDetailFragment newInstance(String imageUrl) {
    final ImageDetailFragment f = new ImageDetailFragment();

    final Bundle args = new Bundle();
    args.putString("url", imageUrl);
    f.setArguments(args);

    return f;
  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mImageUrl = getArguments() != null ? getArguments().getString("url") : null;
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    final View v = inflater.inflate(R.layout.image_detail_fragment, container, false);
    mImageView = (ImageView) v.findViewById(R.id.image);
    mAttacher = new PhotoViewAttacher(mImageView);

    mAttacher.setOnPhotoTapListener(new PhotoViewAttacher.OnPhotoTapListener() {

      @Override
      public void onPhotoTap(View arg0, float arg1, float arg2) {
        getActivity().finish();
      }
    });
    mAttacher.setOnLongClickListener(new View.OnLongClickListener() {
      @Override
      public boolean onLongClick(View view) {
        Toast.makeText(getActivity().getApplicationContext(),"保存",Toast.LENGTH_SHORT).show();
        return false;
      }
    });
    progressBar = (ProgressBar) v.findViewById(R.id.loading);
    return v;
  }

  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    ImageLoader.getInstance().displayImage(mImageUrl, mImageView, new SimpleImageLoadingListener() {
      @Override
      public void onLoadingStarted(String imageUri, View view) {
        progressBar.setVisibility(View.VISIBLE);
      }

      @Override
      public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
        String message = null;
        switch (failReason.getType()) {
        case IO_ERROR:
          message = "下载错误";
          break;
        case DECODING_ERROR:
          message = "图片无法显示";
          break;
        case NETWORK_DENIED:
          message = "网络有问题，无法下载";
          break;
        case OUT_OF_MEMORY:
          message = "图片太大无法显示";
          break;
        case UNKNOWN:
          message = "未知的错误";
          break;
        }
        Toast.makeText(getActivity(), message, Toast.LENGTH_SHORT).show();
        progressBar.setVisibility(View.GONE);
      }

      @Override
      public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
        progressBar.setVisibility(View.GONE);
        mAttacher.update();
      }
    });
  }
}

								 
 3/4   首页 上一页 1 2 3 4 下一页 尾页