Go语言视频零基础入门到精通

yy1020

一、重要方法
　　　　setImageURI(Uri uri)：设置图片地址
　　　　setImageResource(int resid)：设置图片资源库
　　　　setImageDrawable(Drawable drawable)：绘制图片
二、实例

　 <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"
    />

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

设置动画效果
  is.setInAnimation(AnimationUtils.loadAnimation(this,
    android.R.anim.fade_in));
  is.setOutAnimation(AnimationUtils.loadAnimation(this,
    android.R.anim.fade_out));

三、完整代码
1.布局文件
<?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>
   2.java代码
package wjq.WidgetDemo;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.Gallery.LayoutParams;
import android.widget.ViewSwitcher.ViewFactory;
public class ImageSwitcherDemo 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, };
/*
  * (non-Javadoc)
  *
  * @see android.app.Activity#onCreate(android.os.Bundle)
  */
@Override
protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  requestWindowFeature(Window.FEATURE_NO_TITLE);
  setContentView(R.layout.imageswitcherpage);
  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) {
  // TODO Auto-generated method stub
}
}


源码下载：  Downloads.part1.rar (1.39 MB, 下载次数: 16)  Downloads.part2.rar (890.86 KB, 下载次数: 15)

小飞哥

mask一下

njjwheu

very good, thanks

2878qw

下来看看好使不

apekji

很好很强大

yy1020

强烈要求效果图.

apk2011

很好很强大

yweii

真的强大 学习

2878qw

能介绍详细点不