Android Chinese API (35) -- ImageSwitcher

Preface

This chapter is about android. widget. ImageSwitcher. The version is Android 2.2 r1 and translated from "wallace2010". You are welcome to visit his blog: http://blog.csdn.net/springiscoming. Thank you again "wallace2010 "! Welcome to join in Android API Chinese translation, contact me over140@gmail.com.

 

Statement

You are welcome to repost, but please keep the original source of the article :)

Blog Garden: http://www.cnblogs.com/

Android Chinese translation group: http://www.cnblogs.com/over140/

 

Body

I. Structure

　　　　Public class ImageSwitcher extends ViewSwitcher

 

Java. lang. Object
Android. view. View
Android. view. ViewGroup
Android. widget. FrameLayout
Android. widget. ViewAnimator
Android. widget. ViewSwitcher
Android. widget. ImageSwitcher

Ii. Overview

　　　　

(Note: ImageSwitcher is a widget in Android that controls the image display effect, such as the slide effect .)

 

Iii. Public Methods

Public void setImageDrawable (Drawable drawable)

Draw Images

 

Public void setImageResource (int resid)

Set image resource library

 

Public void setImageURI (Uri uri)

Set image address

 

Iv. Supplement

4.1 article link

Android ImageSwitcher

Image Switcher View | Android Developer Tutorial

 

4.2 Sample Code (this code is reposted here)

Java files

Public class mainactivity extends Activity implements
OnItemSelectedListener, ViewFactory {
Private ImageSwitcher is;
Private Gallery gallery;

Private Integer [] mThumbIds = {R. drawable. B, R. drawable. c,
R. drawable. d, R. drawable. f, R. drawable. g,
};

Private Integer [] mImageIds = {R. drawable. B, R. drawable. c,
R. drawable. d, R. drawable. f, R. drawable. g ,};

@ Override
Protected void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
RequestWindowFeature (Window. FEATURE_NO_TITLE );
SetContentView (R. layout. main );

Is = (ImageSwitcher) findViewById (R. id. switcher );
Is. setFactory (this );

Is. setInAnimation (AnimationUtils. loadAnimation (this,
Android. R. anim. fade_in ));
Is. setOutAnimation (AnimationUtils. loadAnimation (this,
Android. R. anim. fade_out ));

Gallery = (Gallery) findViewById (R. id. gallery );

Gallery. setAdapter (new ImageAdapter (this ));
Gallery. setOnItemSelectedListener (this );
}

@ Override
Public View makeView (){
ImageView I = new ImageView (this );
I. setBackgroundColor (0xFF000000 );
I. setScaleType (ImageView. ScaleType. FIT_CENTER );
I. setLayoutParams (new ImageSwitcher. LayoutParams (
LayoutParams. MATCH_PARENT, LayoutParams. MATCH_PARENT ));
Return I;
}

Public class ImageAdapter extends BaseAdapter {
Public ImageAdapter (Context c ){
MContext = c;
}

Public int getCount (){
Return mThumbIds. length;
}

Public Object getItem (int position ){
Return position;
}

Public long getItemId (int position ){
Return position;
}

Public View getView (int position, View convertView, ViewGroup parent ){
ImageView I = new ImageView (mContext );

I. setImageResource (mThumbIds [position]);
I. setAdjustViewBounds (true );
I. setLayoutParams (new Gallery. LayoutParams (
LayoutParams. WRAP_CONTENT, LayoutParams. WRAP_CONTENT ));
I. setBackgroundResource (R. drawable. e );
Return I;
}

Private Context mContext;

}

@ Override
Public void onItemSelected (AdapterView <?> Parent, View view, int position,
Long id ){
Is. setImageResource (mImageIds [position]);

}

@ Override
Public void onNothingSelected (AdapterView <?> Parent ){
}
}

Xml file

<? Xml version = "1.0" encoding = "UTF-8"?>
<RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android"
Android: layout_width = "match_parent"
Android: layout_height = "match_parent">

<ImageSwitcher android: id = "@ + id/switcher"
Android: layout_width = "match_parent"
Android: layout_height = "match_parent"
Android: layout_alignParentTop = "true"
Android: layout_alignParentLeft = "true"
/>

<Gallery android: id = "@ + id/gallery"
Android: background = "#55000000"
Android: layout_width = "match_parent"
Android: layout_height = "60dp"
Android: layout_alignParentBottom = "true"
Android: layout_alignParentLeft = "true"

Android: gravity = "center_vertical"
Android: spacing = "16dp"
/>
</RelativeLayout>

 

End

Wallace2010 made such a nice image--# attracting Emperor ......