android 调用系统相机拍照并保存照片原图

1，在清单文件里设置拍照权限

    <uses-permission android:name="android.permission.CAMERA" />    <uses-permission android:name="android.permission.VIBRATE" />    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />    <uses-permission android:name="android.permission.INTERNET" />         <uses-permission android:name="android.permission.RECORD_AUDIO" />

2，跳转到系统相机的拍照界面或者录像界面

private static final int CAMERA = 0;private static final int CASE_VIDEO = 1;----------------------------------------------------------//拍照photoDir = new File(MyConstants.PHOTO_PATH);            if (!photoDir.exists()) {                photoDir.mkdirs();            }            String name = "temp.jpg";            photo = new File(photoDir, name);            Uri photoUri = Uri.fromFile(photo);            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);            intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);            startActivityForResult(intent, CAMERA);//录像Intent intent1 = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);            intent1.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);            startActivityForResult(intent1, CASE_VIDEO);            SimpleDateFormat formatter = new SimpleDateFormat(                    "yyyy年MM月dd日    HH:mm:ss     ");            Date curDate = new Date(System.currentTimeMillis());// 获取当前时间            date1 = formatter.format(curDate);

3，重写onActivityResult()方法，根据拍照或者录像成功的返回值，做相应的操作

@Override    public void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (requestCode == CAMERA && resultCode == Activity.RESULT_OK) {            if (photo.exists()) {                String name = new DateFormat().format("yyyyMMdd_hhmmss",                        Calendar.getInstance(Locale.CHINA)) + ".jpg";                File newFile = new File(photoDir, name);                photo.renameTo(newFile);                String fileSize = FileSizeUtil.getAutoFileOrFilesSize(newFile                        .getAbsolutePath());                String date = new DateFormat().format("yyyy年MM月dd日 hh:mm:ss",                        Calendar.getInstance(Locale.CHINA)).toString();            }        }        if (requestCode == CASE_VIDEO && resultCode == Activity.RESULT_OK                && null != data) {            Uri uri = data.getData();            String filePath = "";            if (uri == null) {                return;            } else {                Cursor c = getActivity().getContentResolver().query(uri,                        new String[] { MediaStore.MediaColumns.DATA }, null,                        null, null);                if (c != null && c.moveToFirst()) {                    filePath = c.getString(0);                }            }        }

4，根据文件路径获取文件大小的方法

public static double getAutoFileSize(String filePath) {        File file = new File(filePath);        long blockSize = 0;        try {            if (file.isDirectory()) {                blockSize = getFileSizes(file);            } else {                blockSize = getFileSize(file);            }        } catch (Exception e) {            e.printStackTrace();            Log.e("获取文件大小", "获取失败!");        }        return FormatFileSize(blockSize);    }

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