Android Intnent Types

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yd_221104950 发表于 2021/04/08 22:45:39 2021/04/08
【摘要】 There are two types of Intent. Android Intent is a useful component in Android application. It is a data structure containing a description of a to-be-performed operation. You can send a...

There are two types of Intent. Android Intent is a useful component in Android application. It is a data structure containing a description of a to-be-performed operation.
You can send asynchronously messages to other activities, services. It is always handled by an android component, namely an activity, a service or a broadcast receiver.

Explicite intent

It specifies the component to start by the fully-qualified class name.Of course, you know the class name of the activity or service which you want to start.The system immediately starts that component specified in the intent object.
e.g:

Intent intent = new Intent(this,HomeActivity.class);
startActivity(intent);

  
 
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Implicit intent

It declares a general action to perform, which allows a component from another app to handle it.When you create an implicit intent, the system finds the appropriate component to start by comparing the contents of the intent to the intent filters declared in the AndroidManifest.xml file of other apps on the device.It the intent matches an intent filter, the system starts that component and delivers it the intent object.
e.g:

Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT,textMassage);
sendIntent.setType("text/plain");
startActivity(sendIntent);

  
 
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文章来源: blog.csdn.net,作者:WongKyunban,版权归原作者所有,如需转载,请联系作者。

原文链接:blog.csdn.net/weixin_40763897/article/details/115430111

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