block phone numbers and text messages

1. Samsung Android Phone everything is in the bottom right corner of the "Application" icon to start, we click it below the figure red box.2. Then click the "Record" icon in the following figure red box in the application interface and enter.3. Into the SMS management interface, we click on the Phone "menu" and then click on the pop-up interface "View" menu, as shown in the following figure.4. Then here we

There are always a lot of text boxes that prohibit non-Numeric Character Input. For example, if the mobile phone number has a zip code, the following describes how to prohibit it. Interested friends can learn about it at work, there are always a lot of text boxes that prohibit non-numeric characters from being entered, such as mobile

There are always a lot of text boxes that prohibit non-Numeric Character Input. For example, if the mobile phone number has a zip code, the following describes how to prohibit it. Interested friends can learn about it at work, there are always a lot of text boxes that prohibit non-numeric characters from being entered, such as mobile