通过intent-filter kotlin从其他应用程序接收数据？

Question

主活动

 val isActivityLaunchedFromActionSend = intent?.action == Intent.ACTION_SEND
    val isActivityLaunchedFromActionSendMultiple = intent?.action == Intent.ACTION_SEND_MULTIPLE
    val isTextData = intent.type?.startsWith("text/") == true
    val isImageData = intent.type?.startsWith("image/") == true
    if (isActivityLaunchedFromActionSend && isTextData) {

        // Session 1: Handle received text data
        val sentString = intent.getStringExtra(Intent.EXTRA_TEXT)

       //Sending data to fragment so we can set the value in edittext.
        val bundle = Bundle()
        bundle.putString("message", sentString)

        val fragInfo = HomeFragment()
        fragInfo.setArguments(bundle)
      
    } else if (isActivityLaunchedFromActionSend && isImageData) {

        // Session 2: Handle received image data
        val sentImageURI = intent.getParcelableExtra<Parcelable>(Intent.EXTRA_STREAM) as? Uri

    } else if (isActivityLaunchedFromActionSendMultiple && isImageData) {
        val imageURIList = intent.getParcelableArrayListExtra<Parcelable>(Intent.EXTRA_STREAM) ?: arrayListOf()           
    }

首页片段

  override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)

    val myValue =requireArguments().getString("message")
    etUrl.setText(myValue)
   

这里 myValue 中的值将变为 null。而在 HomeFragment 中有一个 editText 所以当用户向我的应用发送链接时，该链接将自动在 EditText 中过去。

清单

  <intent-filter>
            <action android:name="android.intent.action.SEND" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:mimeType="text/plain" />

那么你能告诉我我缺少什么吗？

Answer 1

您从不使用HomeFragment。在if 块中，您有val fragInfo = HomeFragment()，将参数放在该片段上......然后永远不要对fragInfo 做任何事情。因此，HomeFragment 实例及其参数将被垃圾回收。