Prevent mobile device auto lock screen on iOS / Android

General JUCE discussion
3

Well I guess I just helped myself, here’s the Android solution if anyone’s interested:

  1. Keep the same Autolock.h file as in the post above and just add a JUCE_ANDROID flag on top, so the AutoLock struct is available for Android as well.

  2. Add an Autolock.cpp file

  3. In the Autolock.cpp file

    #include "AutoLock.h"

#if JUCE_ANDROID
#include <juce_core/native/juce_android_JNIHelpers.h>

#define JNI_CLASS_MEMBERS(METHOD, STATICMETHOD, FIELD, STATICFIELD, CALLBACK)\
     METHOD (addFlags, "addFlags", "(I)V") \
     METHOD (clearFlags, "clearFlags", "(I)V") \

DECLARE_JNI_CLASS (Window, "android/view/Window")
#undef JNI_CLASS_MEMBERS

void AutoLock::setAutolockEnabled (bool state)
{
      auto activity = getMainActivity();
      auto env = getEnv();
      auto window = env->CallObjectMethod(activity.get(), AndroidActivity.getWindow);

         //https://developer.android.com/reference/android/view/WindowManager.LayoutParams#FLAG_KEEP_SCREEN_ON
      const auto keepScreenOnFlag { 0x00000080 };

      if (state)
           env->CallVoidMethod(window.get(), Window.clearFlags, keepScreenOnFlag);
      else
           env->CallVoidMethod(window.get(), Window.addFlags, keepScreenOnFlag);

      DBG("Android Auto Lock " << String(state? "enabled" : "disabled"));
}
#endif

Hope this will help somebody :slight_smile:

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