Android仿微信朋友圈添加图片的实例代码

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:background="#fff"  android:orientation="vertical">  <!--展示上传的图片-->  <GridView    android:id="@+id/gridView"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:layout_margin="15dp"    android:columnWidth="60dp"    android:horizontalSpacing="10dp"    android:numColumns="auto_fit"    android:verticalSpacing="10dp" /></LinearLayout>

package com.dearxy.wxcircleaddpic;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import com.bumptech.glide.Glide;import java.util.List;/** * 展示上传的图片的GridView的适配器 * 作者： 周旭 on 2017/6/21/0021. */public class GridViewAdapter extends android.widget.BaseAdapter {  private Context mContext;  private List<String> mList;  private LayoutInflater inflater;  public GridViewAdapter(Context mContext, List<String> mList) {    this.mContext = mContext;    this.mList = mList;    inflater = LayoutInflater.from(mContext);  }  @Override  public int getCount() {    //return mList.size() + 1;//因为最后多了一个添加图片的ImageView     int count = mList == null ? 1 : mList.size() + 1;    if (count > MainConstant.MAX_SELECT_PIC_NUM) {      return mList.size();    } else {      return count;    }  }  @Override  public Object getItem(int position) {    return mList.get(position);  }  @Override  public long getItemId(int position) {    return position;  }  @Override  public View getView(int position, View convertView, ViewGroup parent) {    convertView = inflater.inflate(R.layout.grid_item, parent,false);    ImageView iv = (ImageView) convertView.findViewById(R.id.pic_iv);    if (position < mList.size()) {     //代表+号之前的需要正常显示图片      String picUrl = mList.get(position); //图片路径      Glide.with(mContext).load(picUrl).into(iv);    } else {      iv.setImageResource(R.mipmap.zj);//最后一个显示加号图片     }    return convertView;  }}

//初始化展示上传图片的GridView  private void initGridView() {    mPicList = new ArrayList<>();    mGridViewAdapter = new GridViewAdapter(mContext, mPicList);    gridView.setAdapter(mGridViewAdapter);    gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {      @Override      public void onItemClick(AdapterView<?> parent, View view,                  int position, long id) {        if (position == parent.getChildCount() - 1) {          //添加凭证图片          checkPhotoPermission();        } else {          //查看大图          Intent intent = new Intent(mContext, PlusImageActivity.class);          //图片的路径          intent.putExtra(MainConstant.PIC_PATH, mPicList.get(position));          intent.putExtra(MainConstant.POSITION, position);          startActivityForResult(intent, MainConstant.REQUEST_CODE_MAIN);        }      }    });  } // 处理返回照片地址  private void refreshAdapter(final ArrayList<String> paths) {    for (int i = 0; i < paths.size(); i++) {      Log.i(TAG, "path:---->" + paths.get(i));      proofPicCount++;      if (proofPicCount <= MainConstant.MAX_SELECT_PIC_NUM) {        //添加图片到GridView        mPicList.add(paths.get(i));      }    }    mGridViewAdapter.notifyDataSetChanged();  }