Android未找到處理意圖MediaScanner的活動

Question

我試圖用特定文件夾中的圖像/視頻打開圖庫。 我正在使用此解決方案，但我收到下面的錯誤代碼，但沒有任何反應。 我猜它是烏里人的東西，但我找不到解決方案。 有誰知道如何解決這個問題？ 我還包括了“我的”代碼。

 03-15 16:30:53.733 21902-22775/de.comidos.fotoapp D/onScanCompleted: Scan completed: content://media/external/images/media/1730 03-15 16:30:53.752 21902-22775/de.comidos.fotoapp D/Instrumentation: checkStartActivityResult() : Intent { act=android.intent.action.VIEW dat=content://media/external/images/media/1730 launchParam=MultiScreenLaunchParams { mDisplayId=0 mFlags=0 } } 03-15 16:30:53.773 21902-22775/de.comidos.fotoapp W/Binder: Binder call failed. android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=content://media/external/images/media/1730 launchParam=MultiScreenLaunchParams { mDisplayId=0 mFlags=0 } } at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1839) at android.app.Instrumentation.execStartActivity(Instrumentation.java:1531) at android.app.Activity.startActivityForResult(Activity.java:4389) at android.app.Activity.startActivityForResult(Activity.java:4348) at android.app.Activity.startActivity(Activity.java:4672) at android.app.Activity.startActivity(Activity.java:4640) at de.comidos.fotoapp.GalleryViewActivity.onScanCompleted(GalleryViewActivity.java:59) at android.media.MediaScannerConnection$1.scanCompleted(MediaScannerConnection.java:55) at android.media.IMediaScannerListener$Stub.onTransact(IMediaScannerListener.java:60) at android.os.Binder.execTransact(Binder.java:573) 

 package de.comidos.fotoapp; import android.app.Activity; import android.content.Intent; import android.media.MediaScannerConnection; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.util.Log; import java.io.File; public class GalleryViewActivity extends Activity implements MediaScannerConnection.MediaScannerConnectionClient { public String[] allFiles; private String SCAN_PATH ; private static final String FILE_TYPE = "*/*"; private MediaScannerConnection conn; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_gallery); File folder = new File(Environment.getExternalStorageDirectory().toString()+"/comidos/sent/"); allFiles = folder.list(); // uriAllFiles= new Uri[allFiles.length]; for(int i=0;i<allFiles.length;i++) { Log.d("all file path"+i, allFiles[i]+allFiles.length); } // Uri uri= Uri.fromFile(new File(Environment.getExternalStorageDirectory().toString()+"/yourfoldername/"+allFiles[0])); SCAN_PATH= Environment.getExternalStorageDirectory().toString()+"/comidos/sent/"+allFiles[0]; Log.d("SCAN PATH", "Scan Path " + SCAN_PATH); } private void startScan() { Log.d("Connected","success"+conn); if(conn!=null) { conn.disconnect(); } conn = new MediaScannerConnection(this,this); conn.connect(); } @Override public void onMediaScannerConnected() { Log.d("onMediaScannerConnected","success"+conn); conn.scanFile(SCAN_PATH, FILE_TYPE); } @Override public void onScanCompleted(String path, Uri uri) { try { Log.d("onScanCompleted","Scan completed: "+uri ); if (uri != null) { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setData(uri); startActivity(intent); } } finally { conn.disconnect(); conn = null; } } @Override public void onResume(){ super.onResume(); startScan(); } } 

Answer 1

您的設備上沒有任何活動支持content Uri ACTION_VIEW ，無論該內容是ACTION_VIEW MIME類型。 不需要Android設備對所有可能的內容都具有ACTION_VIEW活動。