android create a class function

Question

how to create a class function and call it on other classes that needs the function?

I have this code below, which works okay in a single class.

But is there a way to make a function, so I will just replace the source which is the id of EditText.

So there is no need to copy this code to every class that needs copy function.

final EditText Editsrc = (EditText)findViewById(R.id.XXtxtview);

Button copynPaste = (Button)findViewById(R.id.copynpaste);

final ClipboardManager clipBoard = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);

copynPaste.setOnClickListener(new Button.OnClickListener(){

@SuppressWarnings("deprecation")
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), "Copied to clipboard", Toast.LENGTH_SHORT).show();
clipBoard.setText(Editsrc.getText()); 
}});

Thank you for any help :)

Answer 1

Just create a CopyButton class that extends Android's Button class. Implement the methods you just mentioned... Set the edit text in that class by sending the EditText object to CopyButton class..

Answer 2

You don't need to refer to an existing EditText in a layout. You could programmatically create one every time you want and just include it as a child view in your layout.

EditText myEditText = new EditText(context); // Pass it an Activity or Context
myEditText.setLayoutParams(new LayoutParams(..., ...)); // Pass two args; must be LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, or an integer pixel value.
myLayout.addView(myEditText);