Android 调用相机相册并设置在GridView控件上，支持增加、删除

感觉现在对于相机或者是相册上传图片，用的很多，而且好的例子也很少，我这个是上传前会有添加图片，在这里我规定的上传3张，所以那个添加图片的按钮消失了。下面给大家张图，喜欢的可以赶紧来，不用导入什么文件，直接代码实现。。

activity.main 先把这些布局给导入一下吧：

dialog_add_picture.xml

item_published_grida.xml

bt_dynamic_del.xml

style.xml文件

GridViewAddImgesAdpter

import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;

import com.bumptech.glide.Glide;
import com.bumptech.glide.Priority;

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class GridViewAddImgesAdpter extends BaseAdapter {
    private List> datas;
    private Context context;
    private LayoutInflater inflater;
    /**
     * 可以动态设置最多上传几张，之后就不显示+号了，用户也无法上传了
     * 默认9张
     */
    private int maxImages = 4;

    public GridViewAddImgesAdpter(List> datas, Context context) {
        this.datas = datas;
        this.context = context;
        inflater = LayoutInflater.from(context);
    }

    /**
     * 获取最大上传张数
     *
     * @return
     */
    public int getMaxImages() {
        return maxImages;
    }

    /**
     * 设置最大上传张数
     *
     * @param maxImages
     */
    public void setMaxImages(int maxImages) {
        this.maxImages = maxImages;
    }

    /**
     * 让GridView中的数据数目加1最后一个显示+号
     *
     * @return 返回GridView中的数量
     */
    @Override
    public int getCount() {
        int count = datas == null ? 1 : datas.size() + 1;
        if (count >= maxImages) {
            return datas.size();
        } else {
            return count;
        }
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    public void notifyDataSetChanged(List> datas) {
        this.datas = datas;
        this.notifyDataSetChanged();

    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {


        ViewHolder viewHolder = null;
        if (convertView == null) {
            convertView = inflater.inflate(R.layout.item_published_grida, parent, false);
            viewHolder = new ViewHolder(convertView);
            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }
        if (datas != null && position < datas.size()) {
            final File file = new File(datas.get(position).get("path").toString());
            Log.e("我是file==",""+file);
            Glide.with(context)
                    .load(file)
                    .priority(Priority.HIGH)
                    .into(viewHolder.ivimage);
            viewHolder.btdel.setVisibility(View.VISIBLE);
            viewHolder.btdel.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (file.exists()) {
                        file.delete();
                    }
                    datas.remove(position);
                    notifyDataSetChanged();
                }
            });
        } else {
            Log.e("我是=","11111");
            Glide.with(context)
                    .load(R.mipmap.image_add)
                    .priority(Priority.HIGH)
                    .centerCrop()
                    .into(viewHolder.ivimage);
            viewHolder.ivimage.setScaleType(ImageView.ScaleType.FIT_XY);
            viewHolder.btdel.setVisibility(View.GONE);
        }

        return convertView;

    }

    public class ViewHolder {
        public final ImageView ivimage;
        public final Button btdel;
        public final View root;

        public ViewHolder(View root) {
            ivimage = (ImageView) root.findViewById(R.id.iv_image);
            btdel = (Button) root.findViewById(R.id.bt_del);
            this.root = root;
        }
    }
}

MainActivity

package com.example.test;

import android.app.Dialog;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.media.ExifInterface;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.Display;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.TextView;
import android.widget.Toast;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MainActivity extends AppCompatActivity {
    private GridView gw;
    private List> datas;
    private GridViewAddImgesAdpter gridViewAddImgesAdpter;
    private Dialog dialog;
    private final int PHOTO_REQUEST_CAREMA = 1;// 拍照
    private final int PHOTO_REQUEST_GALLERY = 2;// 从相册中选择private static final String PHOTO_FILE_NAME = "temp_photo.jpg";
    private File tempFile;
    private final String IMAGE_DIR = Environment.getExternalStorageDirectory() + "/gridview/";
    /* 头像名称 */
    private final String PHOTO_FILE_NAME = "temp_photo.jpg";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        gw = (GridView) findViewById(R.id.gw);
        datas = new ArrayList<>();
        gridViewAddImgesAdpter = new GridViewAddImgesAdpter(datas, this);
        gw.setAdapter(gridViewAddImgesAdpter);
        gw.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView adapterView, View view, int position, long id) {
                showdialog();
            }
        });
    }

    /**
     * 选择图片对话框
     */
    public void showdialog() {
        View localView = LayoutInflater.from(this).inflate(
                R.layout.dialog_add_picture, null);
        TextView tv_camera = (TextView) localView.findViewById(R.id.tv_camera);
        TextView tv_gallery = (TextView) localView.findViewById(R.id.tv_gallery);
        TextView tv_cancel = (TextView) localView.findViewById(R.id.tv_cancel);
        dialog = new Dialog(this, R.style.custom_dialog);
        dialog.setContentView(localView);
        dialog.getWindow().setGravity(Gravity.BOTTOM);
        // 设置全屏
        WindowManager windowManager = getWindowManager();
        Display display = windowManager.getDefaultDisplay();
        WindowManager.LayoutParams lp = dialog.getWindow().getAttributes();
        lp.width = display.getWidth(); // 设置宽度
        dialog.getWindow().setAttributes(lp);
        dialog.show();
        tv_cancel.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                dialog.dismiss();
            }
        });

        tv_camera.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                dialog.dismiss();
                // 拍照
                camera();
            }
        });

        tv_gallery.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                dialog.dismiss();
                // 从系统相册选取照片
                gallery();
//                intent = new Intent(Intent.ACTION_PICK, null);
//                intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
//                startActivityForResult(intent, CameraGallaryUtil.PHOTO_REQUEST_GALLERY);
            }
        });
    }

    /**
     * 拍照
     */
    public void camera() {
        // 判断存储卡是否可以用，可用进行存储
        if (hasSdcard()) {

            File dir = new File(IMAGE_DIR);
            if (!dir.exists()) {
                dir.mkdir();
            }
            tempFile = new File(dir,
                    System.currentTimeMillis() + "_" + PHOTO_FILE_NAME);
            //从文件中创建uri
            Uri uri = Uri.fromFile(tempFile);
            Intent intent = new Intent();
            intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
            intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
            intent.addCategory(intent.CATEGORY_DEFAULT);
            // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CAREMA
            startActivityForResult(intent, PHOTO_REQUEST_CAREMA);
        } else {
            Toast.makeText(this, "未找到存储卡，无法拍照！", Toast.LENGTH_SHORT).show();
        }
    }

    /**
     * 判断sdcard是否被挂载
     */
    public boolean hasSdcard() {
        return Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED);
    }


    /**
     * 从相册获取2
     */
    public void gallery() {
        Intent intent = new Intent(
                Intent.ACTION_PICK,
                MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(intent, PHOTO_REQUEST_GALLERY);
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == RESULT_OK) {
            if (requestCode == PHOTO_REQUEST_GALLERY) {
                // 从相册返回的数据
                if (data != null) {
                    // 得到图片的全路径
                    Uri uri = data.getData();
                    String[] proj = {MediaStore.Images.Media.DATA};
                    //好像是android多媒体数据库的封装接口，具体的看Android文档
                    Cursor cursor = managedQuery(uri, proj, null, null, null);
                    //按我个人理解 这个是获得用户选择的图片的索引值
                    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                    //将光标移至开头 ，这个很重要，不小心很容易引起越界
                    cursor.moveToFirst();
                    //最后根据索引值获取图片路径
                    String path = cursor.getString(column_index);
                    uploadImage(path);
                }

            } else if (requestCode == PHOTO_REQUEST_CAREMA) {
                if (resultCode != RESULT_CANCELED) {
                    // 从相机返回的数据
                    if (hasSdcard()) {
                        if (tempFile != null) {
                            uploadImage(tempFile.getPath());
                        } else {
                            Toast.makeText(this, "相机异常请稍后再试！", Toast.LENGTH_SHORT).show();
                        }

                        Log.i("images", "拿到照片path=" + tempFile.getPath());
                    } else {
                        Toast.makeText(this, "未找到存储卡，无法存储照片！", Toast.LENGTH_SHORT).show();
                    }
                }
            }

        }
    }

    Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            if (msg.what == 0xAAAAAAAA) {
                photoPath(msg.obj.toString());
            }

        }
    };

    /**
     * 上传图片
     *
     * @param path
     */
    private void uploadImage(final String path) {
        new Thread() {
            @Override
            public void run() {
                if (new File(path).exists()) {
                    Log.d("images", "源文件存在" + path);
                } else {
                    Log.d("images", "源文件不存在" + path);
                }

                File dir = new File(IMAGE_DIR);
                if (!dir.exists()) {
                    dir.mkdir();
                }
                final File file = new File(dir + "/temp_photo" + System.currentTimeMillis() + ".jpg");
                saveBitmapToFile(path,file.getAbsolutePath());
                if (file.exists()) {
                    Log.d("images", "压缩后的文件存在" + file.getAbsolutePath());
                } else {
                    Log.d("images", "压缩后的不存在" + file.getAbsolutePath());
                }
                Message message = new Message();
                message.what = 0xAAAAAAAA;
                message.obj = file.getAbsolutePath();
                handler.sendMessage(message);

            }
        }.start();

    }
    public static String saveBitmapToFile(String file, String newpath) {
        try {

            // BitmapFactory options to downsize the image
            BitmapFactory.Options o = new BitmapFactory.Options();
            o.inJustDecodeBounds = true;
            o.inSampleSize = 6;
            // factor of downsizing the image

            FileInputStream inputStream = new FileInputStream(file);
            //Bitmap selectedBitmap = null;
            BitmapFactory.decodeStream(inputStream, null, o);
            inputStream.close();

            // The new size we want to scale to
            final int REQUIRED_SIZE = 75;

            // Find the correct scale value. It should be the power of 2.
            int scale = 1;
            while (o.outWidth / scale / 2 >= REQUIRED_SIZE &&
                    o.outHeight / scale / 2 >= REQUIRED_SIZE) {
                scale *= 2;
            }

            BitmapFactory.Options o2 = new BitmapFactory.Options();
            o2.inSampleSize = scale;
            inputStream = new FileInputStream(file);

            Bitmap selectedBitmap = BitmapFactory.decodeStream(inputStream, null, o2);
            inputStream.close();

            // here i override the original image file
//            file.createNewFile();
//
//
//            FileOutputStream outputStream = new FileOutputStream(file);
//
//            selectedBitmap.compress(Bitmap.CompressFormat.JPEG, 100 , outputStream);


            File aa = new File(newpath);

            FileOutputStream outputStream = new FileOutputStream(aa);

            //choose another format if PNG doesn't suit you

            selectedBitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);


            String filepath = aa.getAbsolutePath();
            Log.e("getAbsolutePath", aa.getAbsolutePath());

            return filepath;
        } catch (Exception e) {
            return null;
        }
    }
    public void photoPath(String path) {
        Map map=new HashMap<>();
        map.put("path",path);
        datas.add(map);
        Log.e("我是照片=",""+map);
        gridViewAddImgesAdpter.notifyDataSetChanged();
    }
}
最后导入一下权限：

下面是图片资源：