How to draw line in ConstraintLayout?
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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
2,41851438
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
113
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
2,41851438
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
113
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
2,41851438
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
113
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
2,41851438
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
113
edited Nov 17 '18 at 5:19
Sagar Zala
2,41851438
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
113
edited Nov 17 '18 at 5:19
Sagar Zala
2,41851438
edited Nov 17 '18 at 5:19
Sagar Zala
2,41851438
edited Nov 17 '18 at 5:19
Sagar Zala
2,41851438
2,41851438
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
113
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
113
asked Nov 17 '18 at 2:53
Pig ChouPig Chou
113
113
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
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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
1,2811614
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 |
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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
1,2811614
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
1,2811614
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
1,2811614
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
1,2811614
edited Nov 17 '18 at 4:00
answered Nov 17 '18 at 3:49
LuceferLucefer
1,2811614
answered Nov 17 '18 at 3:49
LuceferLucefer
1,2811614
answered Nov 17 '18 at 3:49
LuceferLucefer
1,2811614
1,2811614
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 |
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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