Implementation of Android development-toast controls

• Toast Toast:

Toast content is simple, not too much to introduce, toast support comes with a simple toast, custom toast. Content simple visible code, see API. A toast provides simple feedback about an operation in A small popup. It is fills the amount of space required for the message and the current activity remains visible and interactive. For example, navigating away from an e-mail before you send it triggers a "Draft saved" toast-let-you-know that can Continue editing later. Toasts automatically disappear after a timeout.

• code example

Activity_main.xml

　　　　

1<relativelayout xmlns:android= "Http://schemas.android.com/apk/res/android"2Xmlns:tools= "Http://schemas.android.com/tools"3Android:layout_width= "Match_parent"4android:layout_height= "Match_parent"5android:paddingbottom= "@dimen/activity_vertical_margin"6android:paddingleft= "@dimen/activity_horizontal_margin"7android:paddingright= "@dimen/activity_horizontal_margin"8android:paddingtop= "@dimen/activity_vertical_margin"9Tools:context= ". Mainactivity ">Ten  One<Button AAndroid:id= "@+id/button1" -Android:layout_width= "Wrap_content" -android:layout_height= "Wrap_content" theAndroid:layout_alignparenttop= "true" -Android:layout_centerhorizontal= "true" -android:layout_margintop= "190DP" -android:text= "Toast button"/> +  -<Button +Android:id= "@+id/button2" AAndroid:layout_width= "Wrap_content" atandroid:layout_height= "Wrap_content" -android:layout_alignleft= "@+id/button1" -android:layout_below= "@+id/button1" -android:layout_margintop= "20DP" -android:text= "Custom Toast"/> -  in</RelativeLayout>

Toast_layout.xml

　　　　

<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"Android:id= "@+id/toast_layout_root"android:orientation= "Horizontal"Android:layout_width= "Fill_parent"Android:layout_height= "Fill_parent"android:padding= "8DP"Android:background= "#DAAA" > <imageview android:src= "@drawable/droid"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_marginright= "8DP"/> <textview android:id= "@+id/text"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:textcolor= "#FFF"/></linearlayout>

Activity

1  PackageCom.example.android_toast;2 3 Importandroid.app.Activity;4 ImportAndroid.os.Bundle;5 Importandroid.view.Gravity;6 ImportAndroid.view.Menu;7 ImportAndroid.view.View;8 ImportAndroid.view.View.OnClickListener;9 ImportAndroid.view.ViewGroup;Ten ImportAndroid.widget.Button; One ImportAndroid.widget.TextView; A ImportAndroid.widget.Toast; - /** -  * @authorXiaowu the * Note:toast toast, support comes with simple toast, custom toast. Content simple visible code, see API -  */ -  Public classMainactivityextendsActivity { -     Privatebutton button; +     PrivateButton button2; - @Override +     protected voidonCreate (Bundle savedinstancestate) { A         Super. OnCreate (savedinstancestate); at Setcontentview (r.layout.activity_main); -Button = (Button) This. Findviewbyid (r.id.button1); -Button2 = (Button) This. Findviewbyid (r.id.button2); -          -         //Add a Click Listener event for a button -Button.setonclicklistener (NewView.onclicklistener () { in @Override -              Public voidOnClick (View v) { to                 //TODO auto-generated Method Stub +                 //Toast.maketext (mainactivity.this, "Toast Content", 1). Show ();  -                 //Create a Toast object theToast Toast =toast.maketext (mainactivity. This, "Toast content", 0); *                 //set where Toast appears in the view $Toast.setgravity (gravity.bottom| Gravity.center, 0, 0);Panax Notoginseng toast.show (); -             } the         }); +          A         //Add a Click Listener event for a button theButton2.setonclicklistener (NewOnclicklistener () { + @Override -              Public voidOnClick (View v) { $                 //TODO auto-generated Method Stub $                 //Load a custom toast view from an XML configuration file -View view =getlayoutinflater (). Inflate (R.layout.toast_layout, (ViewGroup) Findviewbyid (r.id.toast_layout_root)); -                 //Use this view to find objects in the view TextView theTextView TextView =(TextView) View.findviewbyid (r.id.text); -Textview.settext ("Toast content");Wuyi //Toast toast = new Toast (mainactivity.this); theToast toast =NewToast (Getapplicationcontext ()); -                 //set where Toast appears in the view WuToast.setgravity (gravity.center_vertical, 0, 0); -                 //setting a time limit for toast About toast.setduration (toast.length_long); $ Toast.setview (view); - toast.show (); -             } -         }); A          +     } the  - @Override $      Public BooleanOncreateoptionsmenu (Menu menu) { the         //inflate the menu; This adds items to the action bar if it is present. the getmenuinflater (). Inflate (R.menu.main, menu); the         return true; the     } -  in}

Implementation of Android development-toast controls