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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