belongs to Maven artifact com.android.support:appcompat-v7:28.0.0-alpha1
AlertDialog
public
class
AlertDialog
extends AppCompatDialog
implements
DialogInterface
| java.lang.Object | |||
| ↳ | android.app.Dialog | ||
| ↳ | android.support.v7.app.AppCompatDialog | ||
| ↳ | android.support.v7.app.AlertDialog | ||
Known Direct Subclasses
|
A subclass of Dialog that can display one, two or three buttons. If you only want to display a String in this dialog box, use the setMessage() method. If you want to display a more complex view, look up the FrameLayout called "custom" and add your view to it:
FrameLayout fl = findViewById(android.R.id.custom); fl.addView(myView, new LayoutParams(MATCH_PARENT, WRAP_CONTENT));
The AlertDialog class takes care of automatically setting
android.view.WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM for you based on whether
any views in the dialog return true from View.onCheckIsTextEditor(). Generally you want this set for a Dialog
without text editors, so that it will be placed on top of the current
input method UI. You can modify this behavior by forcing the flag to your
desired mode after calling onCreate(Bundle).
Developer Guides
For more information about creating dialogs, read the Dialogs developer guide.
Summary
Nested classes | |
|---|---|
class |
AlertDialog.Builder
|
Inherited constants |
|---|
From
interface
android.content.DialogInterface
|
Protected constructors | |
|---|---|
AlertDialog(Context context)
|
|
AlertDialog(Context context, int themeResId)
Construct an AlertDialog that uses an explicit theme. |
|
AlertDialog(Context context, boolean cancelable, DialogInterface.OnCancelListener cancelListener)
|
|
Public methods | |
|---|---|
Button
|
getButton(int whichButton)
Gets one of the buttons used in the dialog. |
ListView
|
getListView()
Gets the list view used in the dialog. |
boolean
|
onKeyDown(int keyCode, KeyEvent event)
|
boolean
|
onKeyUp(int keyCode, KeyEvent event)
|
void
|
setButton(int whichButton, CharSequence text, Drawable icon, DialogInterface.OnClickListener listener)
Sets an icon to be displayed along with the button text and a listener to be invoked when the positive button of the dialog is pressed. |
void
|
setButton(int whichButton, CharSequence text, DialogInterface.OnClickListener listener)
Sets a listener to be invoked when the positive button of the dialog is pressed. |
void
|
setButton(int whichButton, CharSequence text, Message msg)
Sets a message to be sent when a button is pressed. |