Android emulator : insert negative number?

问题

I suppose it must be easy but how do I insert a negative number in an EditText?

I am running the emulator on a Mac.

Thank you.

回答1:

Just press '-' before you enter the number?

If that's not possible, there is probably something wrong with the inputType of the editText. For example, android:inputType="numberDecimal" doesn't allow negative numbers. In that case you should add: android:inputType="numberDecimal|numberSigned".

回答2:

In resource file .axml, EditBox change type

android:inputType="numberDecimal"

to

android:inputType="numberDecimal|numberSigned"

It works for me

回答3:

EditText yourEditText = (EditText)findViewById(R.id.yourEditText);
yourEditText.setText("whatever");

回答4:

editText.setText(String.valueOf(-1));

来源：https://stackoverflow.com/questions/9133937/android-emulator-insert-negative-number