android.os.NetworkOnMainThreadException 異常處理

標籤：

當我試圖在UI線程(MainActivity)串連網路的時候，運行時拋出異常droid.os.NetworkOnMainThreadException 

安卓的官方文檔說

The exception that is thrown when an application attempts to perform a networking operation on its main thread.

This is only thrown for applications targeting the Honeycomb SDK or higher. Applications targeting earlier SDK versions are allowed to do networking on their main event loop threads, but it‘s heavily discouraged. See the document Designing for Responsiveness.

基於減少UI線程耗時操作的考慮，安卓3.0以上不再允許在UI線程上進行網路連接。

解決方案

1.使用Strict Mode 強行在UI線程串連，(官方不推薦)

2.開一個線程進行網路連接，再用Handler將結果傳給UI線程。 

 

android.os.NetworkOnMainThreadException 異常處理