Toast display image

Toast is used to display some help/prompts to users. The following shows five effects to illustrate the power of toast.

Note:

Length_long --- display the view or text prompt for a long time

Length_short --- display the view or text prompt in a short time

Setgravity (INT gravity, int xoffset, int yoffset) --- set the position where the prompt should be displayed on the screen

Setduration (INT duartion) --- set the display duration

 

1. Default Effect

Code

Toast. maketext (getapplicationcontext (), "Default toast style ",
Toast. length_short). Show ();

 

2. Custom display Position Effect

Code

Toast = toast. maketext (getapplicationcontext (),
"Custom location toast", Toast. length_long );
Toast. setgravity (gravity. Center, 0, 0 );
Toast. Show ();

 

3. image effects

 

Code

Toast = toast. maketext (getapplicationcontext (),
"Toast with image", Toast. length_long );
Toast. setgravity (gravity. Center, 0, 0 );
Linearlayout toastview = (linearlayout) toast. getview ();
Imageview imagecodeproject = new imageview (getapplicationcontext ());
Imagecodeproject. setimageresource (R. drawable. Icon );
Toastview. addview (imagecodeproject, 0 );
Toast. Show ();

 

4. Fully customized results

Code

Layoutinflater Inflater = getlayoutinflater ();
View layout = Inflater. Inflate (R. layout. Custom,
(Viewgroup) findviewbyid (R. Id. lltoast ));
Imageview image = (imageview) Layout
. Findviewbyid (R. Id. tvimagetoast );
Image. setimageresource (R. drawable. Icon );
Textview Title = (textview) layout. findviewbyid (R. Id. tvtitletoast );
Title. settext ("Attention ");
Textview text = (textview) layout. findviewbyid (R. Id. tvtexttoast );
Text. settext ("Fully customized toast ");
Toast = new toast (getapplicationcontext ());
Toast. setgravity (gravity. Right | gravity. Top, 12, 40 );
Toast. setduration (toast. length_long );
Toast. setview (layout );
Toast. Show ();

 

5. other threads

Code

New thread (New runnable (){
Public void run (){
Showtoast ();
}
}). Start ();

 

 

Complete code

1. Main, Java

Package com. wjq. Toast;

Import Android. App. activity;
Import Android. OS. Bundle;
Import Android. OS. Handler;
Import Android. View. gravity;
Import Android. View. layoutinflater;
Import Android. View. view;
Import Android. View. viewgroup;
Import Android. View. View. onclicklistener;
Import Android. widget. imageview;
Import Android. widget. linearlayout;
Import Android. widget. textview;
Import Android. widget. Toast;

Public class main extends activity implements onclicklistener {
Handler handler = new handler ();

@ Override
Public void oncreate (bundle savedinstancestate ){
Super. oncreate (savedinstancestate );
Setcontentview (R. layout. Main );

Findviewbyid (R. Id. btnsimpletoast). setonclicklistener (this );
Findviewbyid (R. Id. btnsimpletoastwithcustomposition). setonclicklistener (
This );
Findviewbyid (R. Id. btnsimpletoastwithimage). setonclicklistener (this );
Findviewbyid (R. Id. btncustomtoast). setonclicklistener (this );
Findviewbyid (R. Id. btnruntoastfromotherthread). setonclicklistener (this );

}

Public void showtoast (){
Handler. Post (New runnable (){

@ Override
Public void run (){
Toast. maketext (getapplicationcontext (), "I'm from another thread! ",
Toast. length_short). Show ();

}
});
}

@ Override
Public void onclick (view v ){
Toast = NULL;
Switch (V. GETID ()){
Case R. Id. btnsimpletoast:
Toast. maketext (getapplicationcontext (), "Default toast style ",
Toast. length_short). Show ();
Break;
Case R. Id. btnsimpletoastwithcustomposition:
Toast = toast. maketext (getapplicationcontext (),
"Custom location toast", Toast. length_long );
Toast. setgravity (gravity. Center, 0, 0 );
Toast. Show ();
Break;
Case R. Id. btnsimpletoastwithimage:
Toast = toast. maketext (getapplicationcontext (),
"Toast with image", Toast. length_long );
Toast. setgravity (gravity. Center, 0, 0 );
Linearlayout toastview = (linearlayout) toast. getview ();
Imageview imagecodeproject = new imageview (getapplicationcontext ());
Imagecodeproject. setimageresource (R. drawable. Icon );
Toastview. addview (imagecodeproject, 0 );
Toast. Show ();
Break;
Case R. Id. btncustomtoast:
Layoutinflater Inflater = getlayoutinflater ();
View layout = Inflater. Inflate (R. layout. Custom,
(Viewgroup) findviewbyid (R. Id. lltoast ));
Imageview image = (imageview) Layout
. Findviewbyid (R. Id. tvimagetoast );
Image. setimageresource (R. drawable. Icon );
Textview Title = (textview) layout. findviewbyid (R. Id. tvtitletoast );
Title. settext ("Attention ");
Textview text = (textview) layout. findviewbyid (R. Id. tvtexttoast );
Text. settext ("Fully customized toast ");
Toast = new toast (getapplicationcontext ());
Toast. setgravity (gravity. Right | gravity. Top, 12, 40 );
Toast. setduration (toast. length_long );
Toast. setview (layout );
Toast. Show ();
Break;
Case R. Id. btnruntoastfromotherthread:
New thread (New runnable (){
Public void run (){
Showtoast ();
}
}). Start ();
Break;

}

}
}

 

2. Main, XML

<? XML version = "1.0" encoding = "UTF-8"?>
<Linearlayout xmlns: Android = "http://schemas.android.com/apk/res/android"
Android: Orientation = "vertical" Android: layout_width = "fill_parent"
Android: layout_height = "fill_parent" Android: padding = "5dip" Android: gravity = "center">
<Button Android: layout_height = "wrap_content"
Android: layout_width = "fill_parent" Android: Id = "@ + ID/btnsimpletoast"
Android: text = "default"> </button>
<Button Android: layout_height = "wrap_content"
Android: layout_width = "fill_parent" Android: text = "Custom display position"
Android: Id = "@ + ID/btnsimpletoastwithcustomposition"> </button>
<Button Android: layout_height = "wrap_content"
Android: layout_width = "fill_parent" Android: Id = "@ + ID/btnsimpletoastwithimage"
Android: text = "with image"> </button>
<Button Android: layout_height = "wrap_content"
Android: layout_width = "fill_parent" Android: text = "Custom"
Android: Id = "@ + ID/btncustomtoast"> </button>
<Button Android: layout_height = "wrap_content"
Android: layout_width = "fill_parent" Android: text = "other threads"
Android: Id = "@ + ID/btnruntoastfromotherthread"> </button>

</Linearlayout>

 

3. Custom. xml

<? XML version = "1.0" encoding = "UTF-8"?>
<Linearlayout
Xmlns: Android = "http://schemas.android.com/apk/res/android"
Android: layout_height = "wrap_content" Android: layout_width = "wrap_content"
Android: Background = "# ffffffff" Android: Orientation = "vertical"
Android: Id = "@ + ID/lltoast">
<Textview
Android: layout_height = "wrap_content"
Android: layout_margin = "1dip"
Android: textcolor = "# ffffffff"
Android: layout_width = "fill_parent"
Android: gravity = "center"
Android: Background = "# bb000000"
Android: Id = "@ + ID/tvtitletoast"/>
<Linearlayout
Android: layout_height = "wrap_content"
Android: Orientation = "vertical"
Android: Id = "@ + ID/lltoastcontent"
Android: layout_marginleft = "1dip"
Android: layout_marginright = "1dip"
Android: layout_marginbottom = "1dip"
Android: layout_width = "wrap_content"
Android: padding = "15dip"
Android: Background = "#44000000">
<Imageview
Android: layout_height = "wrap_content"
Android: layout_gravity = "center"
Android: layout_width = "wrap_content"
Android: Id = "@ + ID/tvimagetoast"/>
<Textview
Android: layout_height = "wrap_content"
Android: paddingright = "10dip"
Android: paddingleft = "10dip"
Android: layout_width = "wrap_content"
Android: gravity = "center"
Android: textcolor = "# ff000000"
Android: Id = "@ + ID/tvtexttoast"/>
</Linearlayout>
</Linearlayout>