当用户选择要在其上共享图像的应用程序时,我正在尝试处理IntentSender
ofIntent.createChooser()
做某事。我在这里找到的大多数示例(在下面发布)都需要使用BroadcastReceiver
如下:
Intent receiver = new Intent(context, MyReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, receiver, PendingIntent.FLAG_UPDATE_CURRENT);
String type = "image/*";
Intent share = new Intent(Intent.ACTION_SEND);
share.setType(type);
share.putExtra(Intent.EXTRA_STREAM, awesome_photo_uri);
startActivity(Intent.createChooser(share, "some_title", pendingIntent.getIntentSender()));
我对这个解决方案的问题,位于这一行:
Intent receiver = new Intent(context, MyReceiver.class);
这些示例中使用的Intent 构造函数需要我创建一个静态MyReceiver
类,所以我有一个类可以传递给构造函数的第二个参数。但是,这会导致一个问题,因为我希望BroadcastReceiver
'sonReceive
在我的 Fragment 中做一些事情。因此,我更愿意BroadcastReceiver
在我的 Fragment 中动态创建一个。
无济于事,我尝试了以下解决方法:
内部MyFragment.kt
:
private val receiver: BroadcastReceiver = getBroadcastReceiver()
private val intentFilter = IntentFilter("com.my.app.CHOOSER_ACTION")
override fun onResume() {
requireContext().registerReceiver(receiver, intentFilter)
super.onResume()
}
override fun onPause() {
requireContext().unregisterReceiver(receiver)
super.onPause()
}
private fun shareImage(imageFile: File) {
Intent().apply {
flags = Intent.FLAG_ACTIVITY_NEW_TASK
action = Intent.ACTION_SEND
type = "image/*"
putExtra(Intent.EXTRA_STREAM, FileProvider.getUriForFile(
requireContext(),
"${myPackageName}.fileprovider",
imageFile
))
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
val receiver = Intent("com.my.app.CHOOSER_ACTION")
val pendingIntent = PendingIntent.getBroadcast(requireContext(), 0, receiver, PendingIntent.FLAG_CANCEL_CURRENT)
startActivity(Intent.createChooser(this, "Share image using", pendingIntent.intentSender))
} else {
startActivity(Intent.createChooser(this, "Share image using"))
}
}
}
private fun getBroadcastReceiver() : BroadcastReceiver {
return object : BroadcastReceiver() {
override fun onReceive(context: Context?, intent: Intent?) {
intent?.extras?.keySet()?.forEach {
Log.v("MyTest", "$it: ${intent.extras?.get(it)}")
}
doSomethingInMyFragment()
}
}
}
内部AndroidManifest.xml
:
<activity android:name="MyActivityThatHasMyFragment" />
<intent-filter>
<action android:name="com.my.app.CHOOSER_ACTION" />
</intent-filter>
</activity>
不幸的是,在用户按下选择后,动态BroadcastReceiver
函数onReceive()
永远不会被调用。几个问题:
- 为什么这不起作用?我错过了什么?我是否以某种方式设置
Intent
或IntentFilter
不正确? - 甚至可以使用动态
BroadcastReceiver
来处理IntentSender
ofcreateChooser
吗?如果没有,我怎样才能创建一个BroadcastReceiver
触发某些事情发生的静态MyFragment
?
资源: