Android 9 Development Cookbook - Third Edition

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To get the list of all currently blocked numbers, use the following code to create a cursor with the list:

Cursor cursor = getContentResolver().query(        BlockedNumberContract.BlockedNumbers.CONTENT_URI,        new String[]{BlockedNumberContract.BlockedNumbers.COLUMN_ID,                BlockedNumberContract.BlockedNumbers.COLUMN_ORIGINAL_NUMBER,                BlockedNumberContract.BlockedNumbers.COLUMN_E164_NUMBER},        null, null, null);