After you finish interacting with your app, click Stop. Select System Trace from the configurations menu in the CPU Profiler andĬlick Record. If you've connected a device over USBīut don't see it listed, ensure that you haveĬlick anywhere in the CPU timeline to open the CPU Profiler. If prompted by the Select Deployment Target dialog, choose the device to In Android Studio, select View > Tool Windows > Profiler or click Profile in the toolbar. In the Janky frames track under the Display pane in the CPU Profiler. Detect jank on Android 12 and higherįor devices using Android 12 (API level 31) or higher, a captured trace is shown When jank occurs, it's usually because of some deceleration or blocking asyncĬall on the UI thread (in most apps, it's the main thread). On their screen, which is referred to as jank. When this happens, the user perceives a recurring flicker If your app suffers from slow UI rendering, then the system isįorced to skip frames. Android renders UI by generating a frame from your app and displaying it on
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