How to send key event to an edit text

Question

For example, send a backspace key to the edit text control to remove a character or send a char code like 112 to append a character in the edittext control programmatically.

Answer 1

if you want a click listener, the best way to do it is this:

View textfield = findViewById(R.id.textfield);  
textfield .setOnClickListener(new View.OnClickListener() { 
public void onClick(View v) {  
/*your code for the click event here*/ }});

if you want a backspace button, do this:

public void backSpace() {   
EditText textfield = (EditText)findViewById(R.id.textfield);  
    try {  
        textfield.getText().delete(textfield.getSelectionEnd() - 1, textfield.getSelectionStart());  
    } catch (Exception e) {  
        try {  
            textfield.getText().delete(textfield.length() - 1, textfield.length());  
        } catch (Exception myException) {  
        //textfield.getText().delete(textfield.length(), textfield.length() - 1);  
        }  
    }  
}

if you want to append a character in the EditText, do this:

EditText textfield = (EditText)findViewById(R.id.textfield);  
textfield.setText(textfield.getText().concat("112"));