Sovled by adding a setContentView()...
On Apr 15, 5:10 pm, Bin Chen <[email protected]> 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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