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按下按钮时的Android输入验证,并在对话框中显示验证消息,如下所示。Android edittext验证如对话框
Codename is required
Password is required
USername is required.
Enter the valid Email id.
Dismiss
这是我的代码:
btninsert = (Button)findViewById(R.id.new_customer);
btninsert.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
EditText Firstname = (EditText) findViewById(R.id.tf_userName);
EditText Lastname = (EditText) findViewById(R.id.tf_password);
EditText Baddress = (EditText) findViewById(R.id.tf_address);
if(Firstname.getText().toString().length() == 0)
Firstname.setError("Firstname is required!");
else if(Lastname.getText().toString().length() == 0)
Lastname.setError("Lastname is required!");
else if(Baddress.getText().toString().length() == 0)
Baddress.setError("Address is required!");
else
insertValues();
}
});
我如何可以验证。
请在这里添加一些解释。 – Nick