1
我有一種從畫廊中檢索圖像的方法，對我來說工作得很好。我的問題是，我在三個不同的活動中使用它，並覺得我應該創建一個可以調用的類來獲取圖像。創建一個專門用於檢索圖像的類？
這是我的代碼：
private void getImage() {
Intent galleryIntent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
// Start the Intent
startActivityForResult(galleryIntent, RESULT_LOAD_IMG);
}
和
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
mRLMenuParams.setVisibility(View.GONE);
mRLImageParams.setVisibility(View.VISIBLE);
bmSelectedImage = null;
try {
// When an Image is picked
if (requestCode == RESULT_LOAD_IMG && resultCode == RESULT_OK
&& null != data) {
// Get the Image from data
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
// Get the cursor
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
// Move to first row
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
imgDecodableString = cursor.getString(columnIndex);
cursor.close();
ImageView imSelectedImage = (ImageView) findViewById(R.id.imageView_image);
imSelectedImage.setImageBitmap(BitmapFactory.decodeFile(imgDecodableString));
Bitmap bmImage = Bitmap.createBitmap(BitmapFactory.decodeFile(imgDecodableString));
bmSelectedImage = bmImage.copy(Bitmap.Config.ARGB_8888, true);
} else {
Toast.makeText(this, "You haven't picked Image", Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
Toast.makeText(this, "Something went wrong", Toast.LENGTH_LONG).show();
}
}
當我嘗試把這個在自己的課，我不能讓它工作，傳遞上下文時也是如此。看起來我需要把它變成一項活動，如果是的話，我認爲沒有把它分開。我是否錯過了能讓我把它放在自己的課堂並返回圖像的東西？
謝謝！