How to draw line in ConstraintLayout?
I am an Android beginner. As you can see in the picture, some ImageView in the ConstraintLayout.
I want to draw lines like red lines in the picture. At the same time, I don't want to change picture location.
At the start, I want to customise my ConstraintLayout and overwrite onDraw() method. But it still not work.
android canvas line edited Nov 17 '18 at 5:19
Sagar Zala
2,36441336
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
62
add a comment |
I am an Android beginner. As you can see in the picture, some ImageView in the ConstraintLayout.
I want to draw lines like red lines in the picture. At the same time, I don't want to change picture location.
At the start, I want to customise my ConstraintLayout and overwrite onDraw() method. But it still not work.
android canvas line edited Nov 17 '18 at 5:19
Sagar Zala
2,36441336
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
62
Hey Congrats on starting to develop android. But Usually ConstraintLayout isn't really used. Try using RelativeLayout instead or LinearLayout is what I always use.
– Kristofer
Nov 17 '18 at 2:57
ConstraintLayout is the replacement for RelativeLayout and is the google-recommended view to use
– Ben P.
Nov 17 '18 at 2:57
add a comment |
I am an Android beginner. As you can see in the picture, some ImageView in the ConstraintLayout.
I want to draw lines like red lines in the picture. At the same time, I don't want to change picture location.
At the start, I want to customise my ConstraintLayout and overwrite onDraw() method. But it still not work.
android canvas line edited Nov 17 '18 at 5:19
Sagar Zala
2,36441336
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
62
I am an Android beginner. As you can see in the picture, some ImageView in the ConstraintLayout.
I want to draw lines like red lines in the picture. At the same time, I don't want to change picture location.
At the start, I want to customise my ConstraintLayout and overwrite onDraw() method. But it still not work.
android canvas line android canvas line edited Nov 17 '18 at 5:19
Sagar Zala
2,36441336
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
62
edited Nov 17 '18 at 5:19
Sagar Zala
2,36441336
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
62
edited Nov 17 '18 at 5:19
Sagar Zala
2,36441336
edited Nov 17 '18 at 5:19
Sagar Zala
2,36441336
edited Nov 17 '18 at 5:19
Sagar Zala
2,36441336
2,36441336
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
62
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
62
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
62
62
Hey Congrats on starting to develop android. But Usually ConstraintLayout isn't really used. Try using RelativeLayout instead or LinearLayout is what I always use.
– Kristofer
Nov 17 '18 at 2:57
ConstraintLayout is the replacement for RelativeLayout and is the google-recommended view to use
– Ben P.
Nov 17 '18 at 2:57
add a comment |
Hey Congrats on starting to develop android. But Usually ConstraintLayout isn't really used. Try using RelativeLayout instead or LinearLayout is what I always use.
– Kristofer
Nov 17 '18 at 2:57
ConstraintLayout is the replacement for RelativeLayout and is the google-recommended view to use
– Ben P.
Nov 17 '18 at 2:57
Hey Congrats on starting to develop android. But Usually ConstraintLayout isn't really used. Try using RelativeLayout instead or LinearLayout is what I always use.
– Kristofer
Nov 17 '18 at 2:57
Hey Congrats on starting to develop android. But Usually ConstraintLayout isn't really used. Try using RelativeLayout instead or LinearLayout is what I always use.
– Kristofer
Nov 17 '18 at 2:57
ConstraintLayout is the replacement for RelativeLayout and is the google-recommended view to use
– Ben P.
Nov 17 '18 at 2:57
ConstraintLayout is the replacement for RelativeLayout and is the google-recommended view to use
– Ben P.
Nov 17 '18 at 2:57
add a comment |
1 Answer
1
active
oldest
votes
you need to know where the location of those line starting and ending points. let's say (starting point - x1,y1 ending point - x2,y2). In code add this. you need to have a canvas
Canvas canvas = new Canvas();
ConstraintSet set = new ConstraintSet();
then draw line
Paint paintLine= new Paint();
paintLine.setAntiAlias(true);
paintLine.setColor(Color.RED);
paintLine.setStrokeWidth(5);
canvas.drawLine(x1, y1, x2, y2, paintLine);
place it in constraint layout
yourconstraintlayout.addView(canvas,0);
set.clone(yourconstraintlayout);
answered Nov 17 '18 at 3:49
LuceferLucefer
1,1211511
Thanks for your reply. I have already solved it using another method.Anyway，thank you.
– Pig Chou
Nov 17 '18 at 4:21
add a comment |
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%2f53347776%2fhow-to-draw-line-in-constraintlayout%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
you need to know where the location of those line starting and ending points. let's say (starting point - x1,y1 ending point - x2,y2). In code add this. you need to have a canvas
Canvas canvas = new Canvas();
ConstraintSet set = new ConstraintSet();
then draw line
Paint paintLine= new Paint();
paintLine.setAntiAlias(true);
paintLine.setColor(Color.RED);
paintLine.setStrokeWidth(5);
canvas.drawLine(x1, y1, x2, y2, paintLine);
place it in constraint layout
yourconstraintlayout.addView(canvas,0);
set.clone(yourconstraintlayout);
answered Nov 17 '18 at 3:49
LuceferLucefer
1,1211511
Thanks for your reply. I have already solved it using another method.Anyway，thank you.
– Pig Chou
Nov 17 '18 at 4:21
add a comment |
you need to know where the location of those line starting and ending points. let's say (starting point - x1,y1 ending point - x2,y2). In code add this. you need to have a canvas
Canvas canvas = new Canvas();
ConstraintSet set = new ConstraintSet();
then draw line
Paint paintLine= new Paint();
paintLine.setAntiAlias(true);
paintLine.setColor(Color.RED);
paintLine.setStrokeWidth(5);
canvas.drawLine(x1, y1, x2, y2, paintLine);
place it in constraint layout
yourconstraintlayout.addView(canvas,0);
set.clone(yourconstraintlayout);
answered Nov 17 '18 at 3:49
LuceferLucefer
1,1211511
Thanks for your reply. I have already solved it using another method.Anyway，thank you.
– Pig Chou
Nov 17 '18 at 4:21
add a comment |
you need to know where the location of those line starting and ending points. let's say (starting point - x1,y1 ending point - x2,y2). In code add this. you need to have a canvas
Canvas canvas = new Canvas();
ConstraintSet set = new ConstraintSet();
then draw line
Paint paintLine= new Paint();
paintLine.setAntiAlias(true);
paintLine.setColor(Color.RED);
paintLine.setStrokeWidth(5);
canvas.drawLine(x1, y1, x2, y2, paintLine);
place it in constraint layout
yourconstraintlayout.addView(canvas,0);
set.clone(yourconstraintlayout);
answered Nov 17 '18 at 3:49
LuceferLucefer
1,1211511
you need to know where the location of those line starting and ending points. let's say (starting point - x1,y1 ending point - x2,y2). In code add this. you need to have a canvas
Canvas canvas = new Canvas();
ConstraintSet set = new ConstraintSet();
then draw line
Paint paintLine= new Paint();
paintLine.setAntiAlias(true);
paintLine.setColor(Color.RED);
paintLine.setStrokeWidth(5);
canvas.drawLine(x1, y1, x2, y2, paintLine);
place it in constraint layout
yourconstraintlayout.addView(canvas,0);
set.clone(yourconstraintlayout);
answered Nov 17 '18 at 3:49
LuceferLucefer
1,1211511
edited Nov 17 '18 at 4:00
answered Nov 17 '18 at 3:49
LuceferLucefer
1,1211511
answered Nov 17 '18 at 3:49
LuceferLucefer
1,1211511
answered Nov 17 '18 at 3:49
LuceferLucefer
1,1211511
1,1211511
Thanks for your reply. I have already solved it using another method.Anyway，thank you.
– Pig Chou
Nov 17 '18 at 4:21
add a comment |
Thanks for your reply. I have already solved it using another method.Anyway，thank you.
– Pig Chou
Nov 17 '18 at 4:21
Thanks for your reply. I have already solved it using another method.Anyway，thank you.
– Pig Chou
Nov 17 '18 at 4:21
Thanks for your reply. I have already solved it using another method.Anyway，thank you.
– Pig Chou
Nov 17 '18 at 4:21
add a comment |
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%2f53347776%2fhow-to-draw-line-in-constraintlayout%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
Hey Congrats on starting to develop android. But Usually ConstraintLayout isn't really used. Try using RelativeLayout instead or LinearLayout is what I always use.
– Kristofer
Nov 17 '18 at 2:57
ConstraintLayout is the replacement for RelativeLayout and is the google-recommended view to use
– Ben P.
Nov 17 '18 at 2:57