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Android will display the ANR dialog for a particular application when it detects one ... in the UI thread that takes a long time to complete can trigger the ANR dialog ... your application is not giving itself a chance to handle the input event or intent ... quickly as possible, indicate that loading is in progress and fill the information ...
ANRs | Android Developers
https://developer.android.com/topic/performance/vitals/anr
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An ANR will be triggered for your app when one of the following conditions occur: ... activity is in the foreground, your app has not responded to an input event or ...
Better performance through threading | Android Developers
https://developer.android.com/topic/performance/threads
When something triggers an event, the thread where the event happened ... too numerous or too long for the main thread to complete the update fast enough, the ... the system displays the Application Not Responding (ANR) dialog, allowing ... to define your overloaded class instances either as static classes, or in their own ...
Slow rendering | Android Developers
https://developer.android.com/topic/performance/vitals/render
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Visual inspection lets you quickly run through all the use-cases in your app in a ... produce jank, you might have a good idea of what is causing the jank in your app . ... which triggers a invalidate() , followed by a draw(Canvas) in the next frame. ... It's fine to allocate in response to a rare event that doesn't happen many times ...
Handle Activity State Changes | Android Developers
https://developer.android.com/guide/components/activities/state-changes
Each activity is given a window in which to draw its user interface… ... best practices · Permissions used only in default handlers · Define custom permissions ... Different events, some user-triggered and some system-triggered, can cause an ... cases for your app, and consideration of speed of retrieval versus memory usage.
Background Execution Limits | Android Developers
https://developer.android.com/about/versions/oreo/background
Whenever an app runs in the background, it consumes some of the device's ... other components can bind to that service whether or not your app is in the foreground. ... the time limit, the system stops the service and declares the app to be ANR. ... broadcasts based on system events; a system event that triggers a broadcast ...
SensorManager | Android Developers
https://developer.android.com/reference/android/hardware/SensorManager
AnrInfo · ApplicationErrorReport.BatteryInfo ... get sensor data as fast as possible ... Cancels receiving trigger events for a trigger sensor. ... To calculate altitude differences, you must calculate the difference between the altitudes at both points .
Measure app performance with Android Profiler | Android Developers
https://developer.android.com/studio/profile/android-profiler
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Overview · Set the application ID · Add build dependencies · Optimize your build speed · Use ... The Android Profiler in Android Studio 3.0 and higher replaces the Android ... 4 The event timeline shows events related to user input, including keyboard ... between them, you can compare resource usage in various scenarios.
Inspect CPU activity with CPU Profiler | Android Developers
https://developer.android.com/studio/profile/cpu-profiler
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Learn how to optimize your app's CPU usage in Android Studio. ... providing a faster and smoother user experience and preserving device battery life. ... If you want to inspect the trace for a different thread, select it from the thread activity timeline. ... While recording CPU activity that's triggered using this API, the CPU profiler ...
dumpsys | Android Developers
https://developer.android.com/studio/command-line/dumpsys
You can call dumpsys from the command line using the Android Debug Bridge ... The following is a sample of what you might see when inspecting the Event ... is being touched, the state of the input queue, whether an ANR is in progress, and so on. ... from what is shown here, because some details of the output differ across ...
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