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io.flutter plugins.
double click GeneratedProjectRegistrant to open the
java code in the edit pane.
at the end of this procedure, both the dart and android debuggers interact
with the same process.
use either, or both, to set breakpoints, examine stack, resume execution
and the like. in other words, debug!
<topic_end>
<topic_start>
debug dart and iOS code using xcode
to debug iOS code, you need a flutter app that contains iOS code.
in this section, you learn to connect two debuggers to your app:
flutter via VS code and xcode. you need to run both VS code and xcode.
these section uses the same example flutter url_launcher app created
in update test flutter app.
<topic_end>
<topic_start>
build the iOS version of the flutter app in the terminal
to generate the needed iOS platform dependencies,
run the flutter build command.
<topic_end>
<topic_start>
start debugging with VS code first
if you use VS code to debug most of your code, start with this section.
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<topic_start>
start the dart debugger in VS code
to open the flutter app directory, go to
file >
open folder… and choose the my_app directory.
open the lib/main.dart file.
if you can build an app for more than one device,
you must select the device first.
go to
view >
command palette…
you can also press ctrl / cmd +
shift + p.
type flutter select.
click the flutter: select device command.
choose your target device.
click the debug icon
().
this opens the debug pane and launches the app.
wait for the app to launch on the device and for the debug pane to
indicate connected.
the debugger takes longer to launch the first time.
subsequent launches start faster.
this flutter app contains two buttons:
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<topic_start>
attach to the flutter process in xcode
to attach to the flutter app, go to
debug >
attach to process >
runner.
runner should be at the top of the attach to process menu
under the likely targets heading.
<topic_end>
<topic_start>
start debugging with xcode first
if you use xcode to debug most of your code, start with this section.
<topic_end>
<topic_start>
start the xcode debugger
open ios/Runner.xcworkspace from your flutter app directory.
select the correct device using the scheme menu in the toolbar.
if you have no preference, choose iPhone pro 14.
run this runner as a normal app in xcode.
when the run completes, the debug area at the bottom of xcode displays
a message with the dart VM service URI. it resembles the following response:
copy the dart VM service URI.
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<topic_start>
attach to the dart VM in VS code
to open the command palette, go to
view >
command palette…
you can also press cmd + shift + p.
type debug.
click the debug: attach to flutter on device command.
in the paste an VM service URI box, paste the URI you copied
from xcode and press enter.
<topic_end>
<topic_start>
debug dart and macOS code using xcode
to debug macOS code, you need a flutter app that contains macOS code.
in this section, you learn to connect two debuggers to your app:
flutter via VS code and xcode. you need to run both VS code and xcode.
these section uses the same example flutter url_launcher app created
in update test flutter app.
<topic_end>
<topic_start>
build the macOS version of the flutter app in the terminal
to generate the needed macOS platform dependencies,
run the flutter build command.
<topic_end>
<topic_start>
start debugging with VS code first
<topic_end>