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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