Question

嗨我无法在下面的代码之后调用onActivityResult方法。

private void ImageChooseOptionDialog() {

    Log.i(TAG, "Inside ImageChooseOptionDialog");
    String[] photooptionarray = new String[] { "Take a photo",
            "Choose Existing Photo" };

    Builder alertDialog = new AlertDialog.Builder(TabSample.tabcontext)
            .setItems(photooptionarray,
                    new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog,
                                int which) {
                            if (which == 0) {
                                Log.i(TAG, "Which" + which);
                                Log.i(TAG,
                                        "Inside ImageChooseOptionDialog Camera");
                                _path = Environment
                                        .getExternalStorageDirectory()
                                        + File.separator
                                        + "TakenFromCamera.png";

                                Log.d(TAG, "----- path ----- " + _path);
                                media = _path;
                                // File file = new File(_path);
                                // Uri outputFileUri = Uri.fromFile(file);
                                // Intent intent = new Intent(
                                // android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                                // intent.putExtra(MediaStore.EXTRA_OUTPUT,
                                // outputFileUri);
                                // startActivityForResult(intent, 1212);

                            } else if (which == 1) {
                                Log.i(TAG, "Which" + which);
                                Log.i(TAG,
                                        "Inside ImageChooseOptionDialog Gallary");
                                // Intent intent = new Intent();
                                // intent.setType("image/*");
                                // intent.setAction(Intent.ACTION_GET_CONTENT);
                                // startActivityForResult(Intent
                                // .createChooser(intent,
                                // "Select Picture"), 1);

                                Intent intent = new Intent(
                                        Intent.ACTION_GET_CONTENT);
                                intent.setType("image/*");
                                // intent.setAction(Intent.ACTION_GET_CONTENT);
                                startActivityForResult(Intent
                                        .createChooser(intent,
                                                "Select Picture"), 1);

                                Log.i(TAG, "end" + which);

                            }
                        }
                    });
    alertDialog.setNeutralButton("Cancel",
            new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();
                }
            });
    alertDialog.create().show();
}

这是我的onActivityResult方法：

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    Log.i(TAG, "Inside Onactivity Result");
    if (resultCode == RESULT_OK) {
        if (requestCode == 1) {
            Log.i(TAG, "Inside if else Onactivity Result");
            // currImageURI is the global variable I’m using to hold the
            // content:// URI of the image
            Uri currImageURI = data.getData();
            String path = getRealPathFromURI(currImageURI);
            Log.i(TAG, "Inside Onactivity Result Image path" + path);

        }
    }
}

请让我知道我在哪里做错了。我正在调用onActivityResult方法，在出现对话框之后= 1。但是没有在logcat中获取onActivityResult方法中的任何日志。

Answer 1

这是因为，您可能没有获得RESULT_OK。始终首先检查请求代码，然后检查结果代码。如果要从库中检索图像，请尝试使用onActivityResult（）中的代码：

if (requestCode == TAKE_PICTURE_GALLERY) {
            if (resultCode == RESULT_OK) {

                final Uri selectedImage = data.getData();
                final String[] filePathColumn = { MediaStore.Images.Media.DATA };

                final Cursor cursor = getContentResolver().query(selectedImage,
                        filePathColumn, null, null, null);
                cursor.moveToFirst();

                final int columnIndex = cursor
                        .getColumnIndex(filePathColumn[0]);
                final String filePath = cursor.getString(columnIndex);
                cursor.close();
             }
}

并在任何地方使用filePath。我希望这能解决你的问题。谢谢:)）

<强>更新使用此代码开始您的图库活动：

 imagePathURI = Uri.fromFile(new File(<your image path>));
        final Intent intent = new Intent(Intent.ACTION_PICK, imagePathURI);
                intent.setType("image/*");
                intent.putExtra(MediaStore.EXTRA_OUTPUT, imagePathURI);
                startActivityForResult(intent, TAKE_PICTURE_GALLERY);

当您想要从图库中检索图像时，MediaStore.EXTRA_OUTPUT指的是Intent-extra的名称，用于指示用于存储所请求图像或视频的内容解析器Uri。所以在这里，你必须通过你将收到你的图像的图像路径。 imagePathURI = Uri.fromFile(new File(<your image path>)); //这里将从您的图片路径创建一个文件。当您收到图像时，您可以从此图像路径访问图像。

无法调用onActivityResult方法

1 个答案: