最近调试一款新的机型时,出现"此应用专为旧版Android打造,因此可能无法正常运行。请尝试检查更新或与开发者联系"提示,出现这种错误的原因:

应用启动,startActivity时,流程会执行到realStartActivityLocked方法,代码位于ActivityStackSupervisor.java

realStartActivityLocked方法中,会调用AppWarnings.java的onStartActivity方法,如下:
final boolean realStartActivityLocked(ActivityRecord r, ProcessRecord app,
boolean andResume, boolean checkConfig) throws RemoteException { try { // ...
mService.getAppWarningsLocked().onStartActivity(r); // ... } catch
(RemoteException e) { // ... } }
onStartActivity方法实现:
/** * Called when an activity is being started. * * @param r record for the
activity being started */ public void onStartActivity(ActivityRecord r) {
showUnsupportedCompileSdkDialogIfNeeded(r);
showUnsupportedDisplaySizeDialogIfNeeded(r); showDeprecatedTarge

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