Intent

Java

Format : setOnClickListener(new View.OnClickListener() { });

new Intent(CurrentActivity.this, NextActivity.class) : Be careful of the type, Next Activity should be class

 

* We usually use dp for view size, sp for text size.

 

str = EditText.getText().toString() : get EditText's text and put it into str with string type

Intent.putExtra("key", value);

 

Toast : Pop-up screen from bottom

Toast.makeText(getApplicationContext(), "String", Toast.LENGTH).show();

 

출처 : https://www.youtube.com/playlist?list=PLC51MBz7PMyyyR2l4gGBMFMMUfYmBkZxm