1 public void takePhoto(){
 2 　　
 3 　String SDState = Environment.getExternalStorageState();
 4   if(SDState.equals(Environment.MEDIA_MOUNTED))
 5             {
 6                 imgfileName = System.currentTimeMillis() + ".jpg";
 7                 Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
 8                 intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(
 9                         Environment.getExternalStorageDirectory(), imgfileName)));
10                 intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);
11                 startActivityForResult(intent, PHOTO_GRAPH);
12                 dialog.dismiss();
13             }else{
14                 Toast.makeText(getThis(),"内存卡不存在", Toast.LENGTH_SHORT).show();
15             }
16  }

/*** 图片压缩显示* @param imagePath* @param width* @param height* @return*/public static Bitmap getImageThumbnail(String imagePath, int width,int height) {Bitmap bitmap = null;BitmapFactory.Options options = new BitmapFactory.Options();options.inJustDecodeBounds = true;// 获取这个图片的宽和高，注意此处的bitmap为nullbitmap = BitmapFactory.decodeFile(imagePath, options);options.inJustDecodeBounds = false; // 设为 false// 计算缩放比int h = options.outHeight;int w = options.outWidth;int beWidth = w / width;int beHeight = h / height;int be = 1;if (beWidth < beHeight) {be = beWidth;} else {be = beHeight;}if (be <= 0) {be = 1;}options.inSampleSize = be;// 重新读入图片，读取缩放后的bitmap，注意这次要把options.inJustDecodeBounds 设为 falsebitmap = BitmapFactory.decodeFile(imagePath, options);// 利用ThumbnailUtils来创建缩略图，这里要指定要缩放哪个Bitmap对象bitmap = ThumbnailUtils.extractThumbnail(bitmap, width, height,ThumbnailUtils.OPTIONS_RECYCLE_INPUT);return bitmap;}