Develop Reference

How to open a document on an alert dialog using PDFView on the app without using Intents

I have a document in the Firebase storage. I want to open that document and display it using an alert dialog and a PDFView from the pdf-viewer:2.8.2 library. This doesen't work when the setPositiveButton is clicked. Any ideas on what I might be doing wrong? This is the code am writing.
holder.postDocument.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final AlertDialog.Builder builder = new AlertDialog.Builder(mContext, R.style.AlertDialog);
builder.setTitle("Open the document?");
builder.setPositiveButton("Open", new DialogInterface.OnClickListener() {
#Override
public void onClick(final DialogInterface dialog, int which) {
final PDFView pdfView = new PDFView(mContext, null);
pdfView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
pdfView.fromAsset(post.getPostdocument());
pdfView.loadPages();
builder.setView(pdfView);
}
}).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.show();
}
});

You Can Find Easily Solution and paste in Alert dialog https://github.com/eduxcellence/PDFViewer/find/master

Open two dialog together

I have two dialog.i open dialog one and click one button in adapter listview in dialog, and i want open another dialog to ask question for are you sure delet this item or no.
But just i can open one of them at a time.
What can i do?
viewHolder.btnDelet.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new DialogDelet(context).setOnListener(new ListenerDelet() {
#Override
public void onSuccess() {
listenerAdapterUserAndRole.unSelect(item);
}
#Override
public void onCancel() {
}
}).Show();
}
});

You can cancel first dialog when user is confirm or you want to open next dialog
like:
public void open(){
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
alertDialogBuilder.setMessage("Are you sure,
You wanted to make decision");
alertDialogBuilder.setPositiveButton("yes",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this,"You clicked yes
button",Toast.LENGTH_LONG).show();
//cancel first dialog here
firstDialogObj.cancel;
// do your stuff contnious what you want
}
});
alertDialogBuilder.setNegativeButton("No",new DialogInterface.OnClickListener() {
Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}

How to set AlertDialog.finish() in the AlertDialog?

I am currently using an app that needs to utilize a lot of AlertDialogs. I've currently coded a basic one here:
protected void StopButton () {
AlertDialog.Builder StopDialog = new AlertDialog.Builder(MainActivity.this);
StopDialog.setTitle(R.string.Stop_Title);
StopDialog.setMessage(R.string.Stop_Message);
StopDialog.setPositiveButton(R.string.Yes_Button, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int id) {
((Protoype2) getApplication()).setRequestingLocationUpdates(false);
finish();
}
});
StopDialog.setNegativeButton(R.string.No_Button, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
((Protoype2) getApplication()).setRequestingLocationUpdates(true);
}
});
StopDialog.setNeutralButton(R.string.Negative_Button, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
//Closes box
finish();
}
});
AlertDialog alert = StopDialog.create();
alert.show();
}
The StopButton works and the Dialog comes up when I call for it. However, the finish(); function does not work.
Upon review, I found that finish(); did not finish the Dialog, rather the entire app. I know I need to get a AlertDialog.cancel in there.
The problem is this: as you can see, the AlertDialog is only created AFTER the StopDialog is finished.
How can I set an AlertDialog.finish() before StopDialog is finished?

Replace finish() with dialog.dismiss() like this:
AlertDialog.Builder StopDialog = new AlertDialog.Builder(TestActivity.this);
StopDialog.setTitle("Title");
StopDialog.setMessage("Stop");
StopDialog.setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int id) {
((Protoype2) getApplication()).setRequestingLocationUpdates(false);
dialog.dismiss();
}
});
StopDialog.setNegativeButton(R.string.no, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
((Protoype2) getApplication()).setRequestingLocationUpdates(true);
}
});
StopDialog.setNeutralButton("Neutral", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
//Closes box
dialog.dismiss();
}
});
AlertDialog alert = StopDialog.create();
alert.show();

There is no such method finish() for AlertDialog. finish() refers to Activity class and will finish the current Activity. You should instead use dismiss().
You can use the DialogInterface object like dialog.dismiss() to dismiss the AlertDialog.
You can go through the documentation for a broader idea :)
http://developer.android.com/guide/topics/ui/dialogs.html

Error when removing item in listView

I got error at this line:
alert.setPositiveButton("YES", new DialogInterface.OnClickListener()
Logcat gives this error
java.lang.NullPointerException
Anyone can help me?
//method to remove list item
private void removeItemFromList(int position) {
final int deletePosition = position;
AlertDialog.Builder alert = new AlertDialog.Builder(MainActivity.this);
alert.setTitle("Delete");
alert.setMessage("Do you want delete this item?");
alert.setPositiveButton("YES", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TOD O Auto-generated method stub
// main code on after clicking yes
arr.remove(deletePosition);
adapter.notifyDataSetChanged();
adapter.notifyDataSetInvalidated();
}
});
alert.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alert.show();
}

Call removeAt(deletePosition) onClick of Yes
public void removeAt(int deletePosition) {
arr.remove(deletePosition);
notifyItemRemoved(deletePosition);
notifyItemRangeChanged(deletePosition, arr.size());
}

Popup listView scroll and with imgaes

i want to create a popup with scroll listView and the listView will contain images,
i tried implement it with this code:
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
AlertDialog.Builder builder = new AlertDialog.Builder(groupContext);
builder.setTitle("Group");
builder.setItems(arrayNames, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
Toast.makeText(getApplicationContext(), arrayNames[item], Toast.LENGTH_SHORT).show();
}
});
builder.setPositiveButton("OK ", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
System.out.println("OK CLICKED");
}
});
builder.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
AlertDialog alert = builder.create();
alert.show();
}
});
this code is working for me, however i cant add images and the listView is not scroll
thanks alot

You need to define a custom dialog with XML layout containing ListView.
Steps:
Define a XML layout with ListView
set XML layout inside dialog using below:
dialog = new Dialog(MyActivity.this);
dialog.setContentView(R.layout.my_listView_layout);
Check this Simple example: Android Custom Dialog Example