Watches allow you to keep track of a specific variable in your program, and see how that variable changes as your program runs. Watches button : Click to show the Watches pane within the Variables pane, which shows the values for any variable watches you have set. The execution stack shows each class and method that have been called in your app and in the Android runtime, with the most recent method at the top.Ĭlick the Threads tab to replace the Frames pane with the Threads pane. The Debugger tab is selected, showing the Debugger pane with the following features:įrames tab : Click to show the Frames pane with the current execution stack frames for a given thread. The figure above shows the Debug pane with the Debugger and Console tabs. Android Studio builds an APK, signs it with a debug key, installs it on your selected device, then runs it and opens the Debug pane with the Debugger and Console tabs. You can either run an app in debug mode, or attach the debugger to an already-running app.ĭebug in the toolbar. Running an app in debug mode is similar to running the app. In this chapter you learn how to debug your app with the Android Studio debugger, set and view breakpoints, step through your code, and examine variables. Dalvik Debug Monitor Server (DDMS), to track resource usage.Test frameworks such as JUnit or Espresso.

Debug mode for running apps with breakpoints.The Debugger pane for viewing frames, threads, and variables.Use the debugging, testing, and profiling capabilities in Android Studio to help you reproduce, find, and resolve all of these problems. Missing requirements or assumptions for how the app should work.Android framework limitations (or bugs).Errors in your design or implementation.All code has bugs, from incorrect behavior in your app, to behavior that excessively consumes memory or network resources, to actual app freezing or crashing. In this chapter you'll learn about debugging your apps in Android Studio.ĭebugging is the process of finding and fixing errors (bugs) or unexpected behavior in your code.

Lesson 3: Testing, debugging, and using support libraries

Android studio debugging app