Android 重命名的文件不会显示在RecyclerView中，而是会使应用程序崩溃
我第一次使用RecyclerView，我试图在视图中重命名一个文件。文件将被重命名，但回收器不会自行更新。我还实现了MediaScanner，但它会使应用程序崩溃，但是在重新启动后，列表会更新为重命名的文件。有没有办法在不调用媒体扫描程序的情况下更新列表 特定重命名代码：Android 重命名的文件不会显示在RecyclerView中，而是会使应用程序崩溃,android,android-recyclerview,Android,Android Recyclerview,我第一次使用RecyclerView，我试图在视图中重命名一个文件。文件将被重命名，但回收器不会自行更新。我还实现了MediaScanner，但它会使应用程序崩溃，但是在重新启动后，列表会更新为重命名的文件。有没有办法在不调用媒体扫描程序的情况下更新列表 特定重命名代码： holder.renamebutton.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View v)
holder.renamebutton.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
builder.setTitle("Title");
// Set up the input
final EditText input = new EditText(mContext);
// Specify the type of input expected; this, for example, sets the input as a password, and will mask the text
input.setInputType(InputType.TYPE_CLASS_TEXT );
builder.setView(input);
// Set up the buttons
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
m_Text = input.getText().toString();
File mydir =new File( Environment.getExternalStorageDirectory()+"/FreeSoundRecorder/");
if(mydir.exists()){
File from = new File(mydir,music.getTitle()+".mp3");
File to = new File(mydir,m_Text+".mp3");
if(from.exists()) {
from.renameTo(to);
String filePath=Environment.getExternalStorageDirectory().getAbsolutePath()+"/FreeSoundRecorder/"+ m_Text+".mp3";
MediaScannerConnection.scanFile(
mContext,
new String[]{filePath},
null,
new MediaScannerConnection.OnScanCompletedListener() {
@Override
public void onScanCompleted(String path, Uri uri) {
Log.v("MehnatSafal",
"file " + path + " was scanned seccessfully: " + uri);
}
});
mContext.getContentResolver().delete(trackuri, null,null);
notifyItemRemoved(position);
notifyItemRangeChanged(position,mMusic.size());
}
}
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.show();
}
09-13 14:33:49.270 16453-16453/cafe.adriel.androidaudiorecorder.example E/AndroidRuntime: FATAL EXCEPTION: main
Process: cafe.adriel.androidaudiorecorder.example, PID: 16453
java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{42450820 position=7 id=-1, oldPos=1, pLpos:1 scrap [attachedScrap] tmpDetached no parent}
at android.support.v7.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:4251)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4382)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4363)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1961)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1370)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1333)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:562)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2864)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3071)
at android.view.View.layout(View.java:14828)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
at android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1660)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1436)
at android.view.View.layout(View.java:14828)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14828)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.support.v7.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:435)
at android.view.View.layout(View.java:14828)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14828)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
at android.view.View.layout(View.java:14828)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14828)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2033)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1790)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1046)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5655)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
at android.view.Choreographer.doCallbacks(Choreographer.java:574)
at android.view.Choreographer.doFrame(Choreographer.java:544)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5052)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612)
at dalvik.system.NativeStart.main(Native Method)
那么，可能的解决方案是什么呢？提前感谢。请您通过编辑问题添加logcat崩溃报告。请您通过评论行尝试-notifyItemRangeChanged（位置，mMusic.size（））；无论您是否收到错误。我已经在这样做了。请您可以通过编辑问题添加logcat崩溃报告吗请您尝试通过注释行-notifyItemRangeChanged（position，mMusic.size（））；不管你是否出错，我已经在做了