我正在尝试添加一个带有复选框的弹出窗口，如果未选中该复选框，则不应在弹出窗口上按"is"，并且最好在弹出窗口中显示某种错误消息。我的尝试如下。
AlertDialog.Builder builder = new AlertDialog.Builder(EmptyActivity.this);
builder.setTitle(R.string.app_name);
builder.setMessage("Confirm for go?");
final CharSequence[] items = {"Something to check before going "};
final ArrayList selectedItems=new ArrayList();
builder.setMultiChoiceItems(items, null, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
//Here you add or remove the items from the list selectedItems. That list will be the result of the user selection.
if(isChecked) {
selectedItems.add(which);
}
}
});
builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
if(selectedItems.size() == 1) {
//call going api
}
else{
//show an error msg inside pop up to tick the checkbox and unable to click yes
}
}
});
builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
AlertDialog alert = builder.create();
alert.show();
弹出窗口如下图所示。
当我运行它时，我看不到弹出窗口中的复选框。那么有人知道我哪里错了吗？我应该如何在弹出窗口中显示错误消息，以通知用户在单击"is"之前勾选复选框？
最佳答案
private void showDialogue() {
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
LayoutInflater inflater = this.getLayoutInflater();
View dialogView = inflater.inflate(R.layout.custom_dashboard, null);
dialogBuilder.setView(dialogView);
final AlertDialog alertDialog = dialogBuilder.create();
final CheckBox one = dialogView.findViewById(R.id.chk01);
Button done = dialogView.findViewById(R.id.done);
done.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (one.isChecked()) {
//do something
}else{
//do something
}
});
alertDialog.show();
}
关于java - android 中的弹出窗口内未显示复选框，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60289978/