java – 如何将光标设置为editText

我有两个EditText,如何在右侧的EditText中设置光标

 EditText emailE = (EditText) findViewById(R.id.editTextEmailLogin);
 EditText passwordE = (EditText)findViewById(R.id.editTextPasswordLogin);
 String email = emailE.getText().toString().trim();
 String password = passwordE.getText().toString().trim();

如果用户按下Singin并且电子邮件EditText为空,请将光标设置在电子邮件EditText中.
密码EditText也一样

if (TextUtils.isEmpty(email)){
        Toast.makeText(this, getResources()"email is empty", Toast.LENGTH_SHORT).show();
        //set cursor in Email editText
        emailE.setSelection(0);
        return;
    }
    if(TextUtils.isEmpty(password)){
        Toast.makeText(this,"password is empty", Toast.LENGTH_SHORT).show();
        //set cursor in Password editText
       passwordE.setSelection(0);
        return;
    }

解决方法:

你可以使用requestFocus();像这样的edittext的方法

if (TextUtils.isEmpty(email)){
    Toast.makeText(this, getResources()"email is empty", Toast.LENGTH_SHORT).show();
    //set cursor in Email editText
    emailE.requestFocus();
    return;
}
if(TextUtils.isEmpty(password)){
    Toast.makeText(this,"password is empty", Toast.LENGTH_SHORT).show();
    //set cursor in Password editText
   passwordE.requestFocus();
    return;
}