Finally I resolved this problem by invoking the flattened view's
findViewById(), hope this can be helpful for others.
On Apr 15, 5:20 pm, Bin Chen <binary.c...@gmail.com> wrote:
> It's weird, if I change the code into:
>
> new
> DialogInterface.OnClickListener() {
> public void
> onClick(DialogInterface dialog,
>
> int whichButton) {
>
> String user;
>
> String password;
>
>
> setContentView(R.layout.alert_dialog_text_entry);
>
> EditText user_edit = (EditText)findViewById
> (R.id.username_edit);
>
> EditText password_edit = (EditText)findViewById
> (R.id.password_edit);
> user
> = user_edit.getText().toString();
>
> setContentView(R.layout.main);
> }
>
> Then the button in the main view has no effect at all, is it a bug? Or
> the way I do is wrong?
>
> On Apr 15, 5:16 pm, Bin Chen <binary.c...@gmail.com> wrote:
>
> > Sovled by adding a setContentView()...
>
> > On Apr 15, 5:10 pm, Bin Chen <binary.c...@gmail.com> wrote:
>
> > > I have a main.xml as the main view and another
> > > alert_dialog_text_entry.xml for one dialog when a button is clicked in
> > > the main.xml view. In the click handler of the button, the findViewById
> > > () can't work, the returned vaule is null, the code is like this:
>
> > > protected Dialog onCreateDialog(int id) {
> > > switch (id) {
> > > case DIALOG_ACCOUNT_SETTING:
> > > LayoutInflater factory =
> > > LayoutInflater.from(mymsn.GetContext());
> > > View textEntryView = factory.inflate(
> > > R.layout.alert_dialog_text_entry,
> > > null);
> > > return new AlertDialog.Builder(this)
> > > .setIcon(R.drawable.icon)
> > >
> > > .setTitle(R.string.alert_dialog_text_entry)
> > > .setView(textEntryView)
> > >
> > > .setPositiveButton(R.string.alert_dialog_ok,
> > > new
> > > DialogInterface.OnClickListener() {
> > > public
> > > void onClick(DialogInterface dialog,
> > >
> > > int whichButton) {
> > >
> > > String user;
> > >
> > > String password;
>
> > >
> > > EditText user_edit = (EditText)findViewById
> > > (R.id.username_edit);
> > >
> > > EditText password_edit = (EditText)findViewById
> > > (R.id.password_edit);
> > >
> > > user = user_edit.getText().toString();
>
> > > }
> > > })
> > >
> > > .setNegativeButton(R.string.alert_dialog_cancel,
> > > new
> > > DialogInterface.OnClickListener() {
> > > public
> > > void onClick(DialogInterface dialog,
> > >
> > > int whichButton) {
> > > }
> > > })
> > > .create();
> > > }
>
> > > The alert_dialog_text_entry.xml:
>
> > > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/
> > > android"
> > > android:layout_width="fill_parent"
> > > android:layout_height="wrap_content"
> > > android:orientation="vertical">
>
> > > <TextView
> > > android:id="@+id/username_view"
> > > android:layout_height="wrap_content"
> > > android:layout_width="wrap_content"
> > > android:layout_marginLeft="20dip"
> > > android:layout_marginRight="20dip"
> > > android:text="@string/alert_dialog_username"
> > > android:gravity="left"
> > > android:textAppearance="?android:attr/textAppearanceMedium" />
>
> > > <EditText
> > > android:id="@+id/username_edit"
> > > android:layout_height="wrap_content"
> > > android:layout_width="fill_parent"
> > > android:layout_marginLeft="20dip"
> > > android:layout_marginRight="20dip"
> > > android:scrollHorizontally="true"
> > > android:autoText="false"
> > > android:capitalize="none"
> > > android:gravity="fill_horizontal"
> > > android:textAppearance="?android:attr/textAppearanceMedium" />
>
> > > <TextView
> > > android:id="@+id/password_view"
> > > android:layout_height="wrap_content"
> > > android:layout_width="wrap_content"
> > > android:layout_marginLeft="20dip"
> > > android:layout_marginRight="20dip"
> > > android:text="@string/alert_dialog_password"
> > > android:gravity="left"
> > > android:textAppearance="?android:attr/textAppearanceMedium" />
>
> > > <EditText
> > > android:id="@+id/password_edit"
> > > android:layout_height="wrap_content"
> > > android:layout_width="fill_parent"
> > > android:layout_marginLeft="20dip"
> > > android:layout_marginRight="20dip"
> > > android:scrollHorizontally="true"
> > > android:autoText="false"
> > > android:capitalize="none"
> > > android:gravity="fill_horizontal"
> > > android:password="true"
> > > android:textAppearance="?android:attr/textAppearanceMedium" />
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