Android 常见问题

Intent 常见用法

To start an activity: You can start a new instance of an Activity by passing an Intent to startActivity() method. To start a service: You can start a service to perform a one-time operation (such as download a file) by passing an Intent to startService(). To deliver a broadcast: You can deliver a broadc to other apps by passing an Intent to sendBroadcast(), sendOrderedBroadcast(), or sendStickyBroadcast().

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