Android开放手机呼叫应用 [英] Android open phone call application

问题描述

我只是想开了Android设备的电话应用程序。我不想提供该应用程序的电话号码。只是想打开它。
我使用的手机应用程序的包名来打开它。因为我可以通过与下面的code表示包名称，打开我想要的任何应用程序。

意图launchIntent = getPackageManager（）。getLaunchIntentForPackage（com.android。联系人）;                 startActivity（launchIntent）;

I just want to open phone call application of android device. I dont want to provide that application a phone number. Just want to open it.
I am using phone application's package name to open it. Because I am able to open any application I want through that package name with the code below.

Intent launchIntent = getPackageManager().getLaunchIntentForPackage("com.android.contacts"); startActivity(launchIntent);

我不能够打开的电话和联系人应用程序与上述code。可能是什么问题？

I am not able to open Phone and Contacts application with the above code. What can be the problem?

推荐答案

意图的目的（不PWN此意（该死！））给你一个更通用的方法的访问，例如打开一个文件的操作。如果你必须指定你想要什么做的，这将是非常有限的包。但是，这里有一些主意，那可能是你追求的是什么。

Intents are intended (no pwn intended here (damn!)) to give you a more generic way of accessing actions such as opening a file. If you had to specify the package of whatever you wanted to do this would be very limited. However, here are some of the intents that may be what you're after.

//For the contacts (picking one)
 Intent i = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
//For the contacts (viewing them) 
 Intent i = new Intent(Intent.ACTION_VIEW, ContactsContract.Contacts.CONTENT_URI);
//For the dial pad
 Intent i = new Intent(Intent.ACTION_DIAL, null);
//For viewing the call log
 Intent i = new Intent(Intent.ACTION_VIEW, CallLog.Calls.CONTENT_URI);

请自己一个有用的意图文件的地方，以节省你在未来的时间，你会感谢我以后的一天。

Make yourself a useful intents file somewhere to save you time in the future, you'll thank me later someday.

当然，开始的意图，你会做 startActivity（我）; 所有的除外第一个，因为你想要的联系人回来，你会需要 startActivityForResult（我）; 但这是另外一个故事了。

Of course to start those intents you'd do startActivity(i); for all excepting the first one, since you'd want the contact back and you'd need startActivityForResult(i); but that's another story.

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