android 选取本地视频或图片

来源：互联网发布：淘宝留言编辑：程序博客网时间：2024/05/17 16:45

近期做的留言板功能，有从本地选取图片或视频发送到留言板的功能：

点击主页面的图片按钮：

case R.id.ll_pic:    if (!PermissionHelper.checkPermission(mContext, Manifest.permission.READ_EXTERNAL_STORAGE)) {        ToastUtils.showShort(mContext, String.format(getString(R.string.permission_help_text), getString(R.string.per_storage)));        return;    }    Intent intentPic = new Intent(            Intent.ACTION_GET_CONTENT);    intentPic.addCategory(Intent.CATEGORY_OPENABLE);    intentPic.setType("video/*;image/*");    startActivityForResult(intentPic,            RESULT_LOAD_IMAGE);    break;

选中图片或视频之后的接收处理：视频只支持1分钟以下的mp4文件

 @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (resultCode == RESULT_OK) {            switch (requestCode) {                case RESULT_LOAD_IMAGE://从图库选择照片返回的路径                    try {                        String filePath = null;                        Uri originalUri = data.getData();                        int size = 0;                        if (originalUri.toString().startsWith("file://")) {                            filePath = originalUri.getPath();                            camerPath = filePath;                            if (!filePath.endsWith(".jpg")                                    && !filePath.endsWith(".png")                                    && !filePath.endsWith(".jpeg")                                    && !filePath.endsWith(".mp4")) {                                Toast.makeText(MainMessageBoard.this,"不支持该格式",Toast.LENGTH_SHORT).show();                                return;                            }                        } else {//                            String[] projection = {MediaStore.Images.Media.DATA};//                            Cursor cursor = getContentResolver().query(originalUri,//                                    projection, null, null, null);//                            int column_index = cursor//                                    .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);//                            cursor.moveToFirst();//                            filePath = cursor.getString(column_index);                            Cursor cursor = getContentResolver().query(originalUri, null, null, null, null);                            cursor.moveToFirst();                            LogUtil.d(TAG, "" + cursor.getString(0) + "," + cursor.getString(1) + "," + cursor.getString(2));                            filePath = cursor.getString(1);                            camerPath = filePath;                            if (camerPath.endsWith(".mp4")) {//                              size = cursor.getInt(cursor.getColumnIndex(MediaStore.Video.Media.SIZE));                                size = cursor.getInt(cursor.getColumnIndex(MediaStore.Video.Media.DURATION));                            }                            if (filePath == null) {                                //android 4.4取最近使用的图片                                String wholeID = DocumentsContract                                        .getDocumentId(originalUri);                                String id = wholeID.split(":")[1];                                String[] column = {MediaStore.Images.Media.DATA};                                String sel = MediaStore.Images.Media._ID + "=?";                                cursor = getContentResolver().query(                                        MediaStore.Images.Media.EXTERNAL_CONTENT_URI,                                        column, sel, new String[]{id}, null);                                int columnIndex = cursor.getColumnIndex(column[0]);                                if (cursor.moveToFirst()) {                                    filePath = cursor.getString(columnIndex);                                    camerPath = filePath;                                }                                cursor.close();                            }                        }//                        Uri uri = Uri.fromFile(new File(filePath));//                        startPhotoZoom(uri);                        if (camerPath.endsWith(".mp4")) {                            size = Integer.valueOf(MsgUtil.getDuration(camerPath));                            String videoArray[] = camerPath.split("/");                            videoname = videoArray[videoArray.length - 1];                            msgType = 3;                            if (size <= 60 * 1000) {                                head_img_name = System.currentTimeMillis() + ".jpg";                                MsgUtil.saveFile(MsgUtil.getVideoThumbnail(camerPath), head_img_name);                                thumbnail = MsgUtil.ALBUM_PATH + head_img_name;                                isMsg = 1;//0可以用于发送文字，图片 语音 1:用于发送视频缩略图 2：用于发送视频文件                                insertMsg();                                if(!deviceMac.equals("Virtual")){                                    DialogHelper.showRoundProcessDialog(MainMessageBoard.this,"正在加载中",true);                                    sendFileToAliyun("leaveMsg/" + sdf.format(new Date()) + "/" + head_img_name, thumbnail);                                }//                      sendFileToAliyun("leaveMsg/" + sdf.format(new Date()) + "/" + videoname, camerPath);//                      sendVideoMsg();                            } else {                                Toast.makeText(mContext, "只支持上传1分钟之内的视频", Toast.LENGTH_SHORT).show();                            }                        } else if (camerPath.endsWith(".3gp")) {                            Toast.makeText(mContext, "只支持mp4格式", Toast.LENGTH_SHORT).show();                        } else {                            String picArray[] = camerPath.split("/");                            fileName = picArray[picArray.length - 1];                            isMsg = 0;//0可以用于发送文字，图片 语音 1:用于发送视频                            msgType = 1;                            insertMsg();                            if(!deviceMac.equals("Virtual")){                                DialogHelper.showRoundProcessDialog(MainMessageBoard.this,"正在加载中",true);                                sendFileToAliyun("leaveMsg/" + sdf.format(new Date()) + "/" + fileName, camerPath);                            }//                   sendPicMsg();                        }                    } catch (Exception ex) {                        ex.printStackTrace();                    }                    break;                case 10:                    if (data != null) {//                            int da = data.getIntExtra("data",0);//                        if(da == 1){//                            queryMsg();//                        }                        MsgBoard msgBoard = (MsgBoard) data.getSerializableExtra("data");                        if (msgBoardList != null && msgBoardList.size() > 0) {                            msgBoardList.add(0, msgBoard);                        } else {                            msgBoardList = new ArrayList<MsgBoard>();                            msgBoardList.add(msgBoard);                        }                        newAdapter.setList(msgBoardList);                        messageList.setAdapter(newAdapter);                        newAdapter.notifyDataSetChanged();                        if (msgBoardList != null && msgBoardList.size() > 0) {                            noMessageRel.setVisibility(View.GONE);                            messageList.setVisibility(View.VISIBLE);//                            refresh_msg.setVisibility(View.VISIBLE);                        } else {                            noMessageRel.setVisibility(View.VISIBLE);                            messageList.setVisibility(View.GONE);//                            refresh_msg.setVisibility(View.INVISIBLE);                        }                        MsgBoadDao.insertData(msgBoard);                    }                    break;            }        } else {            camerPath = "";        }    }

其中RESULT_LOAD_IMAGE是选中图片或视频后的处理，10是从单独的画板界面返回后的处理，画板界面返回了一个MsgBoard
获取视频缩略图和时长的公共方法：
package com.haier.uhome.appliance.newVersion.module.messageboard.view;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Matrix;import android.graphics.drawable.BitmapDrawable;import android.graphics.drawable.Drawable;import android.graphics.drawable.LayerDrawable;import android.media.ExifInterface;import android.media.MediaMetadataRetriever;import android.os.Environment;import com.haier.uhome.application.HaierApp;import com.haier.uhome.common.util.LogUtil;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;/** * Created by wangchm on 2017/1/25 0025. */public class MsgUtil {    public static String ALBUM_PATH = Environment.getExternalStorageDirectory() + "/download_img/";    //得到视频缩略图    public static Bitmap getVideoThumbnail(String filePath) {        Bitmap bitmap = null;        MediaMetadataRetriever retriever = new MediaMetadataRetriever();        try {            retriever.setDataSource(filePath);            bitmap = retriever.getFrameAtTime();        }        catch(IllegalArgumentException e) {            e.printStackTrace();        }        catch (RuntimeException e) {            e.printStackTrace();        }        finally {            try {                retriever.release();            }            catch (RuntimeException e) {                e.printStackTrace();            }        }        return bitmap;    }    //获取视频时长    public static String getDuration(String path){        String duration;        MediaMetadataRetriever retriever = new MediaMetadataRetriever();        retriever.setDataSource(path);        duration = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION);        return duration;    }    //保存图片到本地    public static void saveFile(Bitmap bm, String imgName) {        File dirFile = new File(ALBUM_PATH);        if (!dirFile.exists()) {            dirFile.mkdir();        }        File myFile = new File(ALBUM_PATH + imgName);        try {            BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myFile));            bm.compress(Bitmap.CompressFormat.JPEG, 80, bos);            bos.flush();            bos.close();        } catch (Exception ex) {            ex.printStackTrace();        }    }}

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