How to obtain an image size using the ImageDecoder?
Trying to get an image size using the ImageDecoder I can't find any option to get only the size without decoding the image bitmap.
With BitmapFactory can be done with:
BitmapFactory.Options.inJustDecodeBounds = true
This setting makes the decoder to obtain only the image size without having to decode and return a bitmap. But the ImageDecoder has no equivalent option.
In addition, the size seems to be known only when ImageDecoder.OnHeaderDecodedListener gets called, and neither at this point there is any option to cancel the decoding and avoid returning the bitmap.
add a comment |
Trying to get an image size using the ImageDecoder I can't find any option to get only the size without decoding the image bitmap.
With BitmapFactory can be done with:
BitmapFactory.Options.inJustDecodeBounds = true
This setting makes the decoder to obtain only the image size without having to decode and return a bitmap. But the ImageDecoder has no equivalent option.
In addition, the size seems to be known only when ImageDecoder.OnHeaderDecodedListener gets called, and neither at this point there is any option to cancel the decoding and avoid returning the bitmap.
add a comment |
Trying to get an image size using the ImageDecoder I can't find any option to get only the size without decoding the image bitmap.
With BitmapFactory can be done with:
BitmapFactory.Options.inJustDecodeBounds = true
This setting makes the decoder to obtain only the image size without having to decode and return a bitmap. But the ImageDecoder has no equivalent option.
In addition, the size seems to be known only when ImageDecoder.OnHeaderDecodedListener gets called, and neither at this point there is any option to cancel the decoding and avoid returning the bitmap.
Trying to get an image size using the ImageDecoder I can't find any option to get only the size without decoding the image bitmap.
With BitmapFactory can be done with:
BitmapFactory.Options.inJustDecodeBounds = true
This setting makes the decoder to obtain only the image size without having to decode and return a bitmap. But the ImageDecoder has no equivalent option.
In addition, the size seems to be known only when ImageDecoder.OnHeaderDecodedListener gets called, and neither at this point there is any option to cancel the decoding and avoid returning the bitmap.
edited Jan 18 at 18:59
Fantômas
32.5k156388
32.5k156388
asked Jan 18 at 18:52
PerracoLabsPerracoLabs
3,77963670
3,77963670
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54259885%2fhow-to-obtain-an-image-size-using-the-imagedecoder%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54259885%2fhow-to-obtain-an-image-size-using-the-imagedecoder%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown