Android AlertDialog Multi Choice Items

Question

I have an activity for user with a button called choose days when user clicks the button it show a alert dialog for selecting the day of week

now i want when user select multiple days

then previously selected check box will show in check position and remains with uncheck position

Answer 1

Here is a nice library for that, I use it for my project.

Step 1:

Add these lines to your build.gradle file

  dependencies {
compile 'com.afollestad:material-dialogs:0.7.7.0'
}

repositories 
maven { url 'https://dl.bintray.com/drummer-aidan/maven' }
}

Step 2: In code where you want to show dialog add this:

new MaterialDialog.Builder(this)
    .title(R.string.title)
    .items(R.array.items)
    .itemsCallbackMultiChoice(null, new MaterialDialog.ListCallbackMultiChoice() {
        @Override
        public boolean onSelection(MaterialDialog dialog, Integer[] which, CharSequence[] text) {
            /**
             * If you use alwaysCallMultiChoiceCallback(), which is discussed below,
             * returning false here won't allow the newly selected check box to actually be selected.
             * See the limited multi choice dialog example in the sample project for details.
             **/
             return true;
        }
    })
    .positiveText(R.string.choose)
    .show();

items(R.array.items) - that should be an array of string values in your resources.

P.S. Please read the documentation of this library, it very clear and simply)