Step-by-step _android Development Course [32]_ User interface Toast (toast)

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Browse Links: http://blog.csdn.net/y18334702058/article/details/44624305

• Topic: User interface Toast (toast)
  -Some tips to use in your app

structure Analysis of toast:
Toast Toast=toast.maketext (mainactivity.this, "Default Toast", Toast.length_short). Show ();

First parameter: The current context environment. Available Getapplicationcontext () or this.
Second parameter: the string to display. It's also a string ID in r.string.
The third parameter: the length of time displayed. Toast defaults to two length_long (long) and Length_short (short), or milliseconds, such as 2000ms
Finally, the toast information is displayed: Call the Show () method.

Toast (instance):

Default Toast Effect:

Customizing the display location Toast effect:

Customize the toast effect with pictures:

Fully customizable toast effects:

Thread Start toast Effect:

Implementation code:
Activity_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">       <buttonandroid:layout_height="Wrap_content"android:layout_width= "Fill_parent" android:id="@+id/btnsimpletoast"android:text="Default">                                </Button> <buttonandroid:layout_height="Wrap_content"android:layout_width= "Fill_parent" Android:text="Custom display location"android:id="@+id/btnsimpletoastwithcustomposition" >                                </Button> <buttonandroid:layout_height="Wrap_content"android:layout_width= "Fill_parent" android:id="@+id/btnsimpletoastwithimage"android:text="with picture">                               </Button> <buttonandroid:layout_height="Wrap_content"android:layout_width= "Fill_parent" Android:text="fully customizable"android:id="@+id/btncustomtoast">                               </Button> <buttonandroid:layout_height="Wrap_content"android:layout_width= "Fill_parent" Android:text="Other threads"android:id="@+id/btnruntoastfromotherthread">                               </Button></linearlayout>

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  =;  <textview  android:layout _height  = "wrap_content"  android:layout_ Margin  = "1dip"  android:textcolor  =< Span class= "Hljs-value" > "#ffffffff"  android:layout_width  =" fill_parent " android:gravity  =" Center " android:background  =" #bb000000 "  android:id  = "@+id/tvtitletoast" />  <linearlayout  android: Layout_height  = "wrap_content"  android:o Rientation  = "vertical"  android:id  =< Span class= "Hljs-value" > "@+id/lltoastcontent"  android:layout_marginleft  = "1dip"  android:layout_marginright  =< Span class= "Hljs-value" > "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" />   <TextViewandroid: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>

Mainactivity.java:

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. View. Onclicklistener;Import Android. View. ViewGroup;Import Android. Widgets. ImageView;Import Android. Widgets. LinearLayout;Import Android. Widgets. TextView;Import Android. Widgets. Toast;public class Mainactivity extends Activity implements Onclicklistener {Handler Handler = new Handler ();@Override public void OnCreate (Bundle savedinstancestate) {Super. OnCreate(savedinstancestate);Setcontentview (R. Layout. Activity_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 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 pictures", Toast. LENGTH_long);Toast. Setgravity(Gravity. CENTER,0,0);LinearLayout Toastview = (linearlayout) toast. GetView();ImageView imagecodeproject = new ImageView (Getapplicationcontext ());Imagecodeproject. Setimageresource(R. drawable. MyImage);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. MyImage);TextView title = (TextView) layout. Findviewbyid(R. ID. Tvtitletoast);Title. SetText("Attention");TextView Text = (TextView) layout. Findviewbyid(R. ID. Tvtexttoast);Text. SetText("fully customizable toast");Toast = new Toast (Getapplicationcontext ());Toast. Setgravity(Gravity. CENTER,0,0);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;}     }}

Focus on technology, enjoy life! --qq:804212028
Browse Links: http://blog.csdn.net/y18334702058/article/details/44624305

Step-by-step _android Development Course [32]_ User interface Toast (toast)