android用户界面-组件Widget-画廊视图Gallery

Android的Gallery控件是个很不错的看图控件，大大减轻了开发者对于看图功能的开发，而且效果也比较美观。

/Chapter04_UI_Gallery01/src/com/amaker/test/MainActivity.java

代码

                            package           com.amaker.test;

          import           android.app.Activity;
          import           android.content.Context;
          import           android.os.Bundle;
          import           android.view.View;
          import           android.view.ViewGroup;
          import           android.widget.BaseAdapter;
          import           android.widget.Gallery;
          import           android.widget.ImageView;

          public                     class           MainActivity           extends           Activity {
           /**           Called when the activity is first created.           */          
 @Override
           //          创建时被调用          
                     public                     void           onCreate(Bundle savedInstanceState) {
           super          .onCreate(savedInstanceState);
 setContentView(R.layout.main);
 Gallery g           =           (Gallery) findViewById(R.id.Gallery01);
 
 g.setAdapter(          new           MyAdapter(          this          ));
 }
 
           class           MyAdapter           extends           BaseAdapter{
 Context context;
 MyAdapter(Context context){
           this          .context           =           context;
 }
           private           Integer[] imgs           =           {
 R.drawable.gallery_photo_1,
 R.drawable.gallery_photo_2,
 R.drawable.gallery_photo_3,
 R.drawable.gallery_photo_4,
 R.drawable.gallery_photo_5,
 R.drawable.gallery_photo_6,
 R.drawable.gallery_photo_7,
 R.drawable.gallery_photo_8,
 
 R.drawable.gallery_photo_1,
 R.drawable.gallery_photo_2,
 R.drawable.gallery_photo_3,
 R.drawable.gallery_photo_4,
 R.drawable.gallery_photo_5,
 R.drawable.gallery_photo_6,
 R.drawable.gallery_photo_7,
 R.drawable.gallery_photo_8
 };
 
           public                     int           getCount() {
           return           imgs.length;
 }

           public           Object getItem(          int           item) {
           return           item;
 }

           public                     long           getItemId(          int           id) {
           return           id;
 }

           public           View getView(          int           position, View convertView, ViewGroup parent) {
 ImageView imageView           =                     new           ImageView(context);
 imageView.setImageResource(imgs[position]);
 imageView.setScaleType(ImageView.ScaleType.FIT_XY);
 imageView.setLayoutParams(          new           Gallery.LayoutParams(          136          ,           88          ));
 
           return           imageView;
 }
 
 }
}

/Chapter04_UI_Gallery01/res/layout/main.xml

代码

                            <?          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"          
           >          

          <          Gallery 
          android:id          ="@+id/Gallery01"           
android:layout_width          ="wrap_content"           
android:layout_height          ="wrap_content"          >          
          </          Gallery          >          

          </          LinearLayout          >

更多相关文章

随机推荐