retrieve deleted text messages on android

1. accept the system of SMS broadcast, the operation of SMS content. Advantages: Easy to operate, suitable for simple SMS application.Cons: Letters will display notification information in the status bar.2. application Observer mode, listen to SMS database, operation of SMS content. Examples are as follows:Systemeventreceiver: After receiving the boot OK broadcast, start the Bootservice service, after receiving the application to send SMS intent, call the system interface to send SMSBootservice:

.3. After logging in, return to the happy synchronization page. By default, the "address book backup" function is enabled. Click "backup address book" to upload the existing address book of the fuselage to the cloud (server ). Click "recover address book" to restore the backup data on the server to the mobile phone. Data on the mobile phone and server will be compared during backup or recovery. Data without updates will not be backed up or restored.4. You can also b