Five common pop-up dialog boxes for Android and five types of dialog boxes for android

Five common pop-up dialog boxes for Android and five types of dialog boxes for android

A small example of commonly used dialogs in Android development. There are five kinds of dialogs: normal pop-up dialog box, single-choice dialog box, multiple-choice dialog box, input dialog box and progress bar Style dialog box:

<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android"
Xmlns: tools = "http://schemas.android.com/tools"
Android: layout_width = "match_parent"
Android: layout_height = "match_parent"
Android: orientation = "vertical">


<Button
Android: id = "@ + id/common_dialog"
Android: layout_width = "match_parent"
Android: layout_height = "40dp"
Android: text = "normal dialog box"
Android: textSize = "16sp"
Android: layout_marginTop = "10dp"/>


<Button
Android: id = "@ + id/radio_dialog"
Android: layout_width = "match_parent"
Android: layout_height = "40dp"
Android: text = "single choice dialog box"
Android: textSize = "16sp"
Android: layout_marginTop = "10dp"/>


<Button
Android: id = "@ + id/check_dialog"
Android: layout_width = "match_parent"
Android: layout_height = "40dp"
Android: text = "Multi-choice dialog box"
Android: textSize = "16sp"
Android: layout_marginTop = "10dp"/>


<Button
Android: id = "@ + id/input_dialog"
Android: layout_width = "match_parent"
Android: layout_height = "40dp"
Android: text = "input text dialog box"
Android: textSize = "16sp"
Android: layout_marginTop = "10dp"/>


<Button
Android: id = "@ + id/progress_dialog"
Android: layout_width = "match_parent"
Android: layout_height = "40dp"
Android: text = "progress bar dialog box"
Android: textSize = "16sp"
Android: layout_marginTop = "10dp"/>


</LinearLayout>

The following is a simple layout of the input content activity_input.xml

<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android"
Xmlns: tools = "http://schemas.android.com/tools"
Android: id = "@ + id/LinearLayout1"
Android: layout_width = "match_parent"
Android: layout_height = "match_parent"
Android: orientation = "vertical">


<TextView
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: text = "@ string/hello_world"/>


<EditText
Android: id = "@ + id/uname"
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"/>


<TextView
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: text = "@ string/hello_world"/>


<EditText
Android: id = "@ + id/upass"
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"/>


</LinearLayout>

Code and comments:

Public class MainActivity extends Activity implements OnClickListener {
/** Single region simulated title University */
Private final static int CHECKED_ENU = 0;
/** Single region simulated title high school */
Private final static int CHECKED_SEL = 1;
/** Single-tenant simulated Junior High School title */
Private final static int CHECKED_CHU = 2;
/** Select all button status */
Private boolean [] checked = {true, false };
/** Simulated progress value */
Private int progressNumber;
/** Progress dialog box */
Private ProgressDialog progressDialog;
/** Corresponding button */
Private Button commonBtn, radioBtn, checkBtn, inputBtn, progressBtn;


@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
SetContentView (R. layout. activity_main );
InitViews ();
InitListeners ();
}


/** Initialize the UI control */


Private void initViews (){
This. commonBtn = (Button) findViewById (R. id. common_dialog );
This. radioBtn = (Button) findViewById (R. id. radio_dialog );
This. checkBtn = (Button) findViewById (R. id. check_dialog );
This. inputBtn = (Button) findViewById (R. id. input_dialog );
This. progressBtn = (Button) findViewById (R. id. progress_dialog );
}


/** Register button to listen to events */
Private void initListeners (){
This. commonBtn. setOnClickListener (this );
This. radioBtn. setOnClickListener (this );
This. checkBtn. setOnClickListener (this );
This. inputBtn. setOnClickListener (this );
This. progressBtn. setOnClickListener (this );
}


/** Normal dialog box */
Private Dialog buildAlertDialog (){
AlertDialog. Builder builder = new AlertDialog. Builder (this );
Builder. setIcon (R. drawable. ic_launcher );
Builder. setTitle ("dialog box ");
Builder. setMessage ("Your password is incorrect !! ");


ImageView imageView = new ImageView (this );
ImageView. setImageResource (R. drawable. mm1 );
/** Set the background image */
Builder. setView (imageView );
/** Buttons on the left */
Builder. setPositiveButton ("OK", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
SetTitle ("click the OK button on the left! ");
}
});
/** Intermediate button */
Builder. setNeutralButton ("details", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
SetTitle ("You are clicking the intermediate details button! ");
}
});
/** Buttons on the right */
Builder. setNegativeButton ("cancel", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
// TODO Auto-generated method stub
SetTitle ("click the cancel button on the right! ");
}
});
Return builder. create ();
}


/** Single choice button pop-up box */
Private Dialog buildAlertDialog_radio (){
AlertDialog. Builder builder = new AlertDialog. Builder (this );
Builder. setIcon (R. drawable. ic_launcher );
Builder. setTitle ("dialog box ");
/** Single-choice button, selected by default for high school */
Builder. setSingleChoiceItems (new String [] {"", ""}, 1, new DialogInterface. OnClickListener (){


@ Override
Public void onClick (DialogInterface dialog, int which ){
// TODO Auto-generated method stub
Switch (which ){
Case CHECKED_ENU:
SetTitle (" ");
Break;
Case CHECKED_SEL:
SetTitle ("High School ");
Break;
Case CHECKED_CHU:
SetTitle ("Junior High School ");
Break;
Default:
SetTitle ("Elementary School ");
Break;
}
}
});


Builder. setPositiveButton ("OK", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
SetTitle ("click the OK button on the left! ");
}
});
Builder. setNegativeButton ("cancel", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
SetTitle ("click the cancel button on the right! ");
}
});
Return builder. create ();
}


/** You can select multiple buttons in the pop-up box */
Private Dialog buildAlertDialog_checkbox (){
AlertDialog. Builder builder = new AlertDialog. Builder (this );
Builder. setIcon (R. drawable. ic_launcher );
Builder. setTitle ("dialog box ");
/** Check button */
Builder. setMultiChoiceItems (new String [] {"", ""}, checked, new DialogInterface. OnMultiChoiceClickListener (){


@ Override
Public void onClick (DialogInterface dialog, int which, boolean isChecked ){
SetTitle ("which =" + which + "-----" + "isChecked =" + isChecked );
}
});


Builder. setPositiveButton ("OK", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
SetTitle ("You have clicked the OK button! ");
}
});
Builder. setNegativeButton ("cancel", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
// TODO Auto-generated method stub
SetTitle ("You clicked the cancel button! ");
}
});
Return builder. create ();
}


/** Pop-up box containing input text */
Private Dialog buildAlertDialog_input (){
AlertDialog. Builder builder = new AlertDialog. Builder (this );
Builder. setIcon (R. drawable. ic_launcher );
Builder. setTitle ("dialog box ");
LayoutInflater inflater = LayoutInflater. from (this );
Builder. setView (inflater. inflate (R. layout. activity_input, null ));
Builder. setPositiveButton ("OK", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
SetTitle ("You are clicking the OK button! ");
}
});
Builder. setNegativeButton ("cancel", new DialogInterface. OnClickListener (){
@ Override
Public void onClick (DialogInterface dialog, int which ){
SetTitle ("You are clicking the cancel button! ");
}
});
Return builder. create ();
}


/** Progress dialog box */
Private Dialog buildAlertDialog_progress (){
ProgressDialog = new ProgressDialog (this );
ProgressDialog. setTitle ("progress bar ");
ProgressDialog. setMessage ("downloading ...........");
/** Progress bar style */
ProgressDialog. setProgressStyle (ProgressDialog. STYLE_HORIZONTAL );
/** Blur effect */
ProgressDialog. setIndeterminate (false );
Return progressDialog;
}


/** Update the progress every 0.3 seconds */
Public void updateProgress (){
New Thread (){
@ Override
Public void run (){
Try {
While (progressNumber <= 100 ){
ProgressDialog. setProgress (progressNumber ++ );
Thread. sleep (300 );
Super. run ();
}
/** Close the download box after the download */
ProgressDialog. cancel ();
} Catch (InterruptedException e ){
E. printStackTrace ();
}
}
}. Start ();
}


@ Override
Public void onClick (View v ){
Switch (v. getId ()){
Case R. id. common_dialog:
BuildAlertDialog (). show ();
Break;
Case R. id. radio_dialog:
BuildAlertDialog_radio (). show ();
Break;
Case R. id. check_dialog:
BuildAlertDialog_checkbox (). show ();
Break;
Case R. id. input_dialog:
BuildAlertDialog_input (). show ();
Break;
Case R. id. progress_dialog:
BuildAlertDialog_progress (). show ();
UpdateProgress ();
Break;
Default:
Break;
}
}
}