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Java 如何将图像文件从摄影机添加到我创建的路径文件_Java_Android - Fatal编程技术网

Java 如何将图像文件从摄影机添加到我创建的路径文件

Java 如何将图像文件从摄影机添加到我创建的路径文件,java,android,Java,Android,好的,我一直在寻找解决这个问题的方法,我从相机或图库中捕获了一个图像,并创建了一个图像文件路径,但不幸的是,我可以获得图像,因为相机或图库中的图像实际上不在创建的文件路径中。那么我该如何解决这个问题呢 我真的不知道该说什么,但我确信我已经尽了我所能来解决这个问题,但我现在处于昏迷状态 // function for the createdImageFile.... private File createImageFile() throws IOException { // Create

好的,我一直在寻找解决这个问题的方法,我从相机或图库中捕获了一个图像,并创建了一个图像文件路径,但不幸的是,我可以获得图像,因为相机或图库中的图像实际上不在创建的文件路径中。那么我该如何解决这个问题呢

我真的不知道该说什么,但我确信我已经尽了我所能来解决这个问题,但我现在处于昏迷状态

// function for the createdImageFile....
private File createImageFile() throws IOException {
    // Create an image file name
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    String imageFileName = "JPEG_" + timeStamp + "_";
    File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
    File image = File.createTempFile(
            imageFileName,  /* prefix */
            ".jpg",         /* suffix */
            storageDir      /* directory */
    );

如何将接收到的图像实际放入此路径中?

我假设您希望从拍摄的照片中获取URI。 要从多媒体资料和照相机中拾取图像,您可以尝试以下方法:

1) 此方法用于从库中拾取图像

private void pickFromGallery(int galleryCode) {
    URI_REQUEST_CODE = galleryCode;
    Intent intent;
    if (Build.VERSION.SDK_INT < 19) {
        intent = new Intent();
        intent.setAction(Intent.ACTION_GET_CONTENT);
        intent.setType("image/*");
        startActivityForResult(intent, GALLERY_REQUEST_CODE);
    } else {
        intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        intent.setType("image/*");
        startActivityForResult(intent, GALLERY_REQUEST_CODE);
    }
}
3) 构建onActivityResult方法

       public void onActivityResult(int requestCode, int resultCode, Intent data) {
            // Result code is RESULT_OK only if the user selects an Image
            super.onActivityResult(requestCode, resultCode, data);
            if (resultCode == Activity.RESULT_OK) {
                if (requestCode == GALLERY_REQUEST_CODE) {
                    if (URI_REQUEST_CODE == 1) {
                        Uri selectedImage = data.getData();
                        if (selectedImage != null) {
                            Toast.makeText(this, selectedImage.toString(), Toast.LENGTH_SHORT).show();
                            Log.i("UriFromGalleryPicture", "onActivityResult: " + selectedImage.toString());
                        }
                    } else if (URI_REQUEST_CODE == 2) {
                        if (checkPermissionREAD_EXTERNAL_STORAGE(this)) {
                            Toast.makeText(this, uri.toString(), Toast.LENGTH_SHORT).show();
                            Log.i("UriFromCameraPicture", "onActivityResult: " + uri);
                    }
                }
4) 在需要图像URI的位置调用pickFromGallery(1)/dispatchTakePictureContent(2)方法

如果这有帮助,请告诉我们,您应该在问题中添加详细的错误,以及为图像生成的路径

       public void onActivityResult(int requestCode, int resultCode, Intent data) {
            // Result code is RESULT_OK only if the user selects an Image
            super.onActivityResult(requestCode, resultCode, data);
            if (resultCode == Activity.RESULT_OK) {
                if (requestCode == GALLERY_REQUEST_CODE) {
                    if (URI_REQUEST_CODE == 1) {
                        Uri selectedImage = data.getData();
                        if (selectedImage != null) {
                            Toast.makeText(this, selectedImage.toString(), Toast.LENGTH_SHORT).show();
                            Log.i("UriFromGalleryPicture", "onActivityResult: " + selectedImage.toString());
                        }
                    } else if (URI_REQUEST_CODE == 2) {
                        if (checkPermissionREAD_EXTERNAL_STORAGE(this)) {
                            Toast.makeText(this, uri.toString(), Toast.LENGTH_SHORT).show();
                            Log.i("UriFromCameraPicture", "onActivityResult: " + uri);
                    }
                }