自定义共享意向活动 [英] Custom share intent activity

问题描述

由于本教程：的http://mobile.tutsplus.com/tutorials/android/android-sdk-implement-a-share-intent/我知道如何去分享我的留言：我简单地创建意图，并开始活动。 然而，有startActivity呼叫，有效显示共享窗口之间的一个小的延迟，所以我想提出一个自定义的活动，例如，适合的应用程序的该类型的共享列表视图。

因此​​，我需要的：

编辑： 1）一种方式来获得的应用程序至极列表可以处理这个意图，在我的案件与纯文本/ MIME类型的ACTION.SEND意图。

2）的方式与我的邮件正文和主题启动它们。

解决方案

获取安装的应用程序的列表：

 最后PackageManager PM = getPackageManager（）;

名单＆LT; ApplicationInfo＆GT;包= pm.getInstalledApplications（PackageManager.GET_META_DATA）;

对于（ApplicationInfo packageInfo：包）{

   Log.d（TAG，安装包：+ packageInfo.packageName）;
   Log.d（TAG，启动活动：+ pm.getLaunchIntentForPackage（packageInfo.packageName））;

   } //该getLaunchIntentForPackage返回，您可以使用startActivity使用意向（）
}
 

和启动该包：

 保护无效launchApp（字符串的packageName）{

意图mIntent = getPackageManager（）getLaunchIntentForPackage（的packageName）。
如果（mIntent！= NULL）{
尝试 {
startActivity（mIntent）;
}赶上（ActivityNotFoundException ERR）{
吐司T = Toast.makeText（getApplicationContext（）
应用程序未找到，Toast.LENGTH_SHORT）;
t.show（）;
}
}
}
 

修改

此方法查询软件包管理器安装的软件包，可以与指定的操作意图作出回应：

 公共静态布尔isIntentAvailable（上下文的背景下，串动）{
最终PackageManager packageManager = context.getPackageManager（）;
最终意向意图=新的意图（动作）;
名单＆LT; ResolveInfo＆GT;名单=
packageManager.queryIntentActivities（意向，PackageManager.MATCH_DEFAULT_ONLY）;
返回则为list.size（）＆GT; 0;
}
 

和使用特定的应用程序（可处理ACTION_SEND）分享您的文本

  ResolveInfo信息= list.get（指数）;
意向意图=新的意图（android.content.Intent.ACTION_SEND）;
intent.setClassName（info.activityInfo.packageName，info.activityInfo.name）;
intent.setType（text / plain的）;
intent.putExtra（Intent.EXTRA_SUBJECT，学科）;
intent.putExtra（Intent.EXTRA_TEXT，身体）;
（（活动）范围内）.startActivity（意向）;
 

Thanks to this tutorial: http://mobile.tutsplus.com/tutorials/android/android-sdk-implement-a-share-intent/ I know how to simply share my message: I simply create the intent and start activity. However, there's a little latency between startActivity call and effective show of the share windows so I'd like to make a custom activity with, for example, a listview of suitable apps for that type of sharing.

I thus need:

edit: 1) A way to get a list of apps wich can handle the intent, in my case an ACTION.SEND intent with a text/plain mime type.

2)A way to start them with my message body and subject.

解决方案

Get the list of installed application:

final PackageManager pm = getPackageManager();

List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);

for (ApplicationInfo packageInfo : packages) {

   Log.d(TAG, "Installed package :" + packageInfo.packageName);
   Log.d(TAG, "Launch Activity :" + pm.getLaunchIntentForPackage(packageInfo.packageName)); 

   }// the getLaunchIntentForPackage returns an intent that you can use with startActivity() 
}

and to launch that package:

protected void launchApp(String packageName) {

Intent mIntent = getPackageManager().getLaunchIntentForPackage(packageName);
if (mIntent != null) {
try {
startActivity(mIntent);
} catch (ActivityNotFoundException err) {
Toast t = Toast.makeText(getApplicationContext(),
"Application not found", Toast.LENGTH_SHORT);
t.show();
}
}
}

EDIT

This method queries the package manager for installed packages that can respond to an intent with the specified action:

public static boolean isIntentAvailable(Context context, String action) {
final PackageManager packageManager = context.getPackageManager();
final Intent intent = new Intent(action);
List<ResolveInfo> list =
packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
return list.size() > 0;
}

and to share your text using a specific application (which can handle ACTION_SEND):

ResolveInfo info = list.get(index);
Intent intent = new Intent(android.content.Intent.ACTION_SEND);
intent.setClassName(info.activityInfo.packageName, info.activityInfo.name);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_SUBJECT, subject);
intent.putExtra(Intent.EXTRA_TEXT, body);
((Activity)context).startActivity(intent);

这篇关于自定义共享意向活动的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！