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Learning Android Intents by Wajahat Karim, Muhammad Usama bin Aftab

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The <uses-feature> and <uses-permission> tags

Any Android application, by default, doesn't have the permission to perform any operations that impact any other application, system, or the user directly or indirectly. This includes reading or writing the user's private data such as contacts and messages, reading or writing other applications' files, or any other activity. The Android system allows applications to be standalone and sandboxed, but in case of sharing data, the applications must explicitly share it with each other. To achieve this objective of sharing more easily, Android allows developers to declare permissions in their applications for the activities that the app wants to perform. Users will be informed about the permissions that ...

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