Toast.makeText(net.asdqwe.activities.Signup.this, configurationz.ERROR_MESSAGES_SIGNUP_PASSWORDS_DO_NOT_MATCH, Toast.LENGTH_SHORT).setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL, 0, 0);
Toast.show();
此代码不起作用。Toast.show() 标记为红色,并显示以下错误:
Cannot make a static reference to the non-static method show() from the type Toast
Toast.makeText(net.asdqwe.activities.Signup.this,
configurationz.ERROR_MESSAGES_SIGNUP_PASSWORDS_DO_NOT_MATCH,
Toast.LENGTH_SHORT)
.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL, 0, 0)
.show();
这也不起作用,给我以下错误:
Cannot invoke show() on the primitive type void
Show 不是静态方法,因此需要使用通过 makeText 方法创建的实例。这是你可以做到的:
Toast myToast = Toast.makeText(net.asdqwe.activities.Signup.this, configurationz.ERROR_MESSAGES_SIGNUP_PASSWORDS_DO_NOT_MATCH, Toast.LENGTH_SHORT);
myToast.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL, 0, 0);
myToast.show();
show
()方法不是静态方法,所以不能调用Toast.show();
相反,您应该使用以下方法。
Toast toast=Toast.makeText(net.asdqwe.activities.Signup.this, configurationz.ERROR_MESSAGES_SIGNUP_PASSWORDS_DO_NOT_MATCH, Toast.LENGTH_SHORT);
toast.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL, 0, 0);
toast.show();