Why Android doesn't print the stack trace?

Question

即使显式写e.printStackTrace（）它也不会打印到控制台，为什么？

Answer 1

Checkout Logcat in DDMS perspective it should be there not in the Console tab.

Or use the ddms command tool to read logcat.

Answer 2

printStackTrace() doesn't print to the console, it prints to the standard error stream. If you want to print to the screen, set your display text to e.getMessage() or e.getStackTrace() . (Although I do recommend learning to debug with logcat instead.)

Answer 3

You cannot print to console on Android. You have to use Android Log class. When I have an exception and I want to print it I'm using:

for (StackTraceElement element : exception.getStackTrace())
    Log.e("my_tag", element.toString());

or you can try

String stackTrace = Log.getStackTraceString(throwable);

And after that you can print it to Android Log.

Answer 4

使用Log.X（），其中X是您想要的错误控制台的类型（Log.e，Log.v，Log.d等）