![]() ![]() If you clicked a line of code that is not executable, the red dot includes an " x" and a warning appears that the line of code is not executable. If you click a breakpoint by mistake, you can undo it by clicking the breakpoint. CANT DEBUG ANDROID STUDIO UPDATEIf your app is already running, you don't need to update it to add the breakpoint. The red dot includes a check mark if the app is already running in debug mode.Īs an alternative, you can choose Run > Toggle Line Breakpoint or press Control-F8 ( Command-F8 on a Mac) to set or clear a breakpoint at a line. A red dot appears at that line, indicating a breakpoint. Locate the line of code where you want to pause execution.Ĭlick in the left gutter of the editor pane at that line, next to the line numbers.To add a breakpoint to a line in your code, use these steps: You can set a breakpoint on any executable line of code. While paused, you can examine variables, evaluate expressions, then continue execution line by line to determine the causes of runtime errors. The most common type is a breakpoint that pauses the execution of your app at a specified line of code. To stop debugging your app, select Run > Stop or click the Stop iconĪndroid Studio supports several types of breakpoints that trigger different debugging actions. To resume executing an app after debugging it, select Run > Resume Program or click the Resume Check the Show all processes option to show all processes on all devices.Ĭlick OK. ![]() In the Choose Process dialog, select the process to which you want to attach the debugger.īy default, the debugger shows the device and app process for the current project, as well as any connected hardware devices or virtual devices on your computer. Select Run > Attach debugger to Android process or click the. ![]() If your app is already running on a device or emulator, start debugging that app with these steps: Try expanding a variable to explore its properties. Each variable in this pane has an expand icon to expand the list of object properties for the variable. Variables pane : Shows the variables in the current scope and their values.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. CANT DEBUG ANDROID STUDIO HOW TOIn 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. ![]()
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