android:layout_gravity=“left|center_vertical”
android:layout_marginLeft=“20dip”
android:textSize=“22sp” />
GridView异步加载图片显示
/2013.8.19_Universal_Image_Loader_Demo/res/layout/ac_image_grid.xml
<?xml version="1.0" encoding="utf-8"?><GridView xmlns:android=“http://schemas.android.com/apk/res/android”
android:id=“@+id/gridview”
android:layout_width=“fill_parent”
android:layout_height=“fill_parent”
android:gravity=“center”
android:horizontalSpacing=“4dip”
android:numColumns=“3”
android:stretchMode=“columnWidth”
android:verticalSpacing=“4dip”
android:padding=“4dip” />
/2013.8.19_Universal_Image_Loader_Demo/res/layout/item_grid_image.xml
<?xml version="1.0" encoding="utf-8"?><ImageView xmlns:android=“http://schemas.android.com/apk/res/android”
android:id=“@+id/image”
android:layout_width=“fill_parent”
android:layout_height=“120dip”
android:adjustViewBounds=“true”
android:contentDescription=“@string/descr_image”
android:scaleType=“centerCrop” />
ViewPager异步加载图片显示
**/2013.8.19_Universal_Image_Loader_Demo/res/layout/ac_image_pager.xml
**
<?xml version="1.0" encoding="utf-8"?><android.support.v4.view.ViewPager xmlns:android=“http://schemas.android.com/apk/res/android”
android:id=“@+id/pager”
android:layout_width=“fill_parent”
android:layout_height=“fill_parent” />
/2013.8.19_Universal_Image_Loader_Demo/res/layout/ item_pager_image.xml
<?xml version="1.0" encoding="utf-8"?><FrameLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“fill_parent”
android:layout_height=“fill_parent”
android:padding=“1dip” >
<ImageView
android:id=“@+id/image”
android:layout_width=“wrap_content”
android:layout_height=“wrap_content”
android:layout_gravity=“center”
android:adjustViewBounds=“true”
android:contentDescription=“@string/descr_image” />
<ProgressBar
android:id=“@+id/loading”
android:layout_width=“wrap_content”
android:layout_height=“wrap_content”
android:layout_gravity=“center”
android:visibility=“gone” />
Gallery画廊异步加载图片显示
**/2013.8.19_Universal_Image_Loader_Demo/res/layout/ac_image_gallery.xml
**
<?xml version="1.0" encoding="utf-8"?><Gallery xmlns:android=“http://schemas.android.com/apk/res/android”
android:id=“@+id/gallery”
android:layout_width=“fill_parent”
android:layout_height=“wrap_content”
android:layout_gravity=“center_vertical”
android:spacing=“1dip” />
/2013.8.19_Universal_Image_Loader_Demo/res/layout/item_gallery_image.xml
<?xml version="1.0" encoding="utf-8"?><ImageView xmlns:android=“http://schemas.android.com/apk/res/android”
android:id=“@+id/image”
android:layout_width=“120dip”
android:layout_height=“120dip”
android:layout_gravity=“center”
android:adjustViewBounds=“true”
android:contentDescription=“@string/descr_image”
android:scaleType=“centerCrop” />
还有一个就是桌面小部件
以上只是布局文件，没有什么可以说，具体Activity代码实现如下：
先是这个：
/2013.8.19_Universal_Image_Loader_Demo/src/com/nostra13/example/universalimageloader/HomeActivity.java
主界面Activity代码
/*******************************************************************************
Copyright 2011-2013 Sergey Tarasevich
Licensed under the Apache License, Version 2.0 (the “License”);
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an “AS IS” BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*******************************************************************************/
package com.nostra13.example.universalimageloader;
import static com.nostra13.example.universalimageloader.Constants.IMAGES;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import com.nostra13.example.universalimageloader.Constants.Extra;
import com.nostra13.universalimageloader.utils.L;
/**
*/
public class HomeActivity extends BaseActivity {
private static final String TEST_FILE_NAME = “Universal Image Loader @#&=±_.,!()~'%20.png”;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.ac_home);
// 定义文件对象，目录：/mnt/sdcard, 文件名:TEST_FILE_NAME
File testImageOnSdCard = new File(“/mnt/sdcard”, TEST_FILE_NAME);
if (!testImageOnSdCard.exists()) { // 如果文件不存在
// 把文件复制到SD卡
copyTestImageToSdCard(testImageOnSdCard);
}
}
// 点击进入ListView展示界面
public void onImageListClick(View view) {
Intent intent = new Intent(this, Image
