android – AlertDialog帶正按鈕並驗證自定義EditText

對話建立：

AlertDialog.Builder builder = new AlertDialog.Builder(YourActivity.this);
builder.setCancelable(false)
.setMessage("Please Enter data")
.setView(edtLayout) //<-- layout containing EditText
.setPositiveButton("Enter", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//All of the fun happens inside the CustomListener now.
//I had to move it to enable data validation.
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
Button theButton = alertDialog.getButton(DialogInterface.BUTTON_POSITIVE);
theButton.setOnClickListener(new CustomListener(alertDialog));

CustomListener：

class CustomListener implements View.OnClickListener {
private final Dialog dialog;
public CustomListener(Dialog dialog) {
this.dialog = dialog;
}
@Override
public void onClick(View v) {
// put your code here
String mValue = mEdtText.getText().toString();
if(validate(mValue)){
dialog.dismiss();
}else{
Toast.makeText(YourActivity.this, "Invalid data", Toast.LENGTH_SHORT).show();
}
}
}