android 打开相机和相册

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打开相册和相机有多种方式，目前收集到两种方式；一种是来自环信程序员，一种是来自网络。不知道他们的区别在哪里，反正都可以实现相应的功能。

1 环信

/** * 照相获取图片 */public void selectPicFromCamera() {if (!CommonUtils.isExitsSdcard()) {String st = getResources().getString(R.string.sd_card_does_not_exist);Toast.makeText(getApplicationContext(), st, 0).show();return;}cameraFile = new File(PathUtil.getInstance().getImagePath(), DemoApplication.getInstance().getUserName()+ System.currentTimeMillis() + ".jpg");cameraFile.getParentFile().mkdirs();startActivityForResult(new Intent(MediaStore.ACTION_IMAGE_CAPTURE).putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(cameraFile)),REQUEST_CODE_CAMERA);}/** * 选择文件 */private void selectFileFromLocal() {Intent intent = null;if (Build.VERSION.SDK_INT < 19) {intent = new Intent(Intent.ACTION_GET_CONTENT);intent.setType("*/*");intent.addCategory(Intent.CATEGORY_OPENABLE);} else {intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);}startActivityForResult(intent, REQUEST_CODE_SELECT_FILE);}/** * 从图库获取图片 */public void selectPicFromLocal() {Intent intent;if (Build.VERSION.SDK_INT < 19) {intent = new Intent(Intent.ACTION_GET_CONTENT);intent.setType("image/*");} else {intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);}startActivityForResult(intent, REQUEST_CODE_LOCAL);}

2 网络（我已使用多次）

/** * 打开相册 * @param context */public static void openAlbum(Activity context){Intent intent = new Intent(Intent.ACTION_PICK, null);intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*");context.startActivityForResult(intent, 2);}/** * 打开相机 * @param context */public static void openCamera(Activity context){if (!CommonUtils.isExitsSdcard()) {ToastUtils.show(((Context)context), R.string.sdcard_not_exist);return;}Uri imageUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.png"));Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);context.startActivityForResult(intent, 1);}

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