Android调用系统相册和系统相机拍照

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调用系统相机拍照：intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);startActivityForResult(intent, RESULT_CAMARA_IMAGE); // RESULT_CAMARA_IMAGE:Activity的标志。自已定义调用系统相册：  intent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);startActivityForResult(intent, RESULT_LOAD_IMAGE); // RESULT_LOAD_IMAGE:Activity的标志。自已定义    @Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if(resultCode==RESULT_OK && requestCode==TAKE_PICTURE){camara(data); //调用下面的方法}}下面是在onActivityResult()中调用的两个方法：/** * 调用系统相册的操作,在onActivityResult中调用 *  * @param data *            onActivityResult中的Intent */public Bitmap map(Intent data) {Uri selectedImage = data.getData();String[] filePathColumn = { MediaStore.Images.Media.DATA };Cursor cursor = mContext.getContentResolver().query(selectedImage,filePathColumn, null, null, null);cursor.moveToFirst();int columnIndex = cursor.getColumnIndex(filePathColumn[0]);String picturePath = cursor.getString(columnIndex);cursor.close();Log.d("picturePath", picturePath);return BitmapFactory.decodeFile(picturePath);}/** * 调用系统相机,在onActivityResult中调用，拍照后保存到sdcard卡中 *  * @param data *            onActivityResult中的Intent * @return */public Bitmap camara(Intent data) {String sdStatus = Environment.getExternalStorageState();if (!sdStatus.equals(Environment.MEDIA_MOUNTED)) { // 检测sd是否可用Log.i("TestFile", "SD card is not avaiable/writeable right now.");Toast.makeText(mContext,"SD card is not avaiable/writeable right now.",Toast.LENGTH_LONG).show();return null;}String name = new DateFormat().format("yyyyMMdd_hhmmss",Calendar.getInstance(Locale.CHINA))+ ".jpg";Bundle bundle = data.getExtras();Bitmap bitmap = (Bitmap) bundle.get("data");FileOutputStream b = null;File file = new File("sdcard/DCIM/Camera/");file.mkdirs();// 创建文件夹String fileName = "sdcard/DCIM/Camera/" + name;try {b = new FileOutputStream(fileName);bitmap.compress(Bitmap.CompressFormat.JPEG, 100, b);// 把数据写入文件} catch (FileNotFoundException e) {e.printStackTrace();} finally {try {b.flush();b.close();} catch (IOException e) {e.printStackTrace();}}return bitmap;}
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