Android-Universal-Image-Loader
github地址：https://github.com/nostra13/Android-Universal-Image-Loader
加载缓存网络图片的工具，此工具的最大优点是提供了下载缓存进度接口，缺点需要自己处理加载后的图片
使用效果：
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.assist.FailReason;
import com.nostra13.universalimageloader.core.assist.ImageSize;
import com.nostra13.universalimageloader.core.listener.ImageLoadingListener;
import com.nostra13.universalimageloader.core.listener.ImageLoadingProgressListener;
import com.nostra13.universalimageloader.core.listener.SimpleImageLoadingListener;
/** 图片下载demo
* https://github.com/nostra13/Android-Universal-Image-Loader
*/
public class UnlversalImageLoaderDemo extends AppCompatActivity implements View.OnClickListener {
private Button mBtn1,mBtn2,mBtn3,mBtn4,mBtn5,mBtn6;
private ImageView mImage;
private ImageLoader mImageLoader;
private Bitmap mBitmap;
private DisplayImageOptions mOptions;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_unlversal_image_loader);
mBtn1 = (Button)findViewById(R.id.btn1);
mBtn2 = (Button)findViewById(R.id.btn2);
mBtn3 = (Button)findViewById(R.id.btn3);
mBtn4 = (Button)findViewById(R.id.btn4);
mBtn5 = (Button)findViewById(R.id.btn5);
mBtn6 = (Button)findViewById(R.id.btn6);
mBtn1.setOnClickListener(this);
mBtn2.setOnClickListener(this);
mBtn3.setOnClickListener(this);
mBtn4.setOnClickListener(this);
mBtn5.setOnClickListener(this);
mBtn6.setOnClickListener(this);
mImage = (ImageView)findViewById(R.id.image);
/**
* 初始化工作
*/
ImageLoaderConfiguration imageLoaderConfiguration = new ImageLoaderConfiguration.Builder(UnlversalImageLoaderDemo.this).build();
mImageLoader = ImageLoader.getInstance();
mImageLoader.init(imageLoaderConfiguration);
/* 选项功能模板
DisplayImageOptions options = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.ic_stub) // resource or drawable
.showImageForEmptyUri(R.drawable.ic_empty) // resource or drawable
.showImageOnFail(R.drawable.ic_error) // resource or drawable
.resetViewBeforeLoading(false) // default
.delayBeforeLoading(1000)
.cacheInMemory(false) // default
.cacheOnDisk(false) // default
.preProcessor(...)
.postProcessor(...)
.extraForDownloader(...)
.considerExifParams(false) // default
.imageScaleType(ImageScaleType.IN_SAMPLE_POWER_OF_2) // default
.bitmapConfig(Bitmap.Config.ARGB_8888) // default
.decodingOptions(...)
.displayer(new SimpleBitmapDisplayer()) // default
.handler(new Handler()) // default
.build();
*/
mOptions = new DisplayImageOptions.Builder().build();
}
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.btn1:
/**
* 第一种加载图片的方式
*/
mImageLoader.displayImage("https://s0.52poke.wiki/wiki/thumb/2/21/001Bulbasaur.png/300px-001Bulbasaur.png",mImage);
break;
case R.id.btn2:
/**
* 第二种加载图片的方式
*/
mImageLoader.loadImage("https://s0.52poke.wiki/wiki/thumb/7/73/002Ivysaur.png/300px-002Ivysaur.png",new SimpleImageLoadingListener(){
@Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
mImage.setImageBitmap(loadedImage);
}
});
break;
case R.id.btn3:
/**
* 第三种加载图片的方式
*/
mImageLoader.displayImage("https://s0.52poke.wiki/wiki/thumb/a/ae/003Venusaur.png/300px-003Venusaur.png", mImage,mOptions, new ImageLoadingListener() {
@Override
public void onLoadingStarted(String s, View view) {
//开始加载
Toast.makeText(UnlversalImageLoaderDemo.this,"开始加载妙蛙花",Toast.LENGTH_SHORT).show();
}
@Override
public void onLoadingFailed(String s, View view, FailReason failReason) {
//加载失败
Toast.makeText(UnlversalImageLoaderDemo.this,"妙蛙花加载失败",Toast.LENGTH_SHORT).show();
}
@Override
public void onLoadingComplete(String s, View view, Bitmap bitmap) {
//加载成功
Toast.makeText(UnlversalImageLoaderDemo.this,"妙蛙花加载成功",Toast.LENGTH_SHORT).show();
}
@Override
public void onLoadingCancelled(String s, View view) {
//取消加载
Toast.makeText(UnlversalImageLoaderDemo.this,"妙蛙花取消加载",Toast.LENGTH_SHORT).show();
}
}, new ImageLoadingProgressListener() {
@Override
public void onProgressUpdate(String s, View view, int i, int i1) {
//下载进度
/**
* String s = 下载网站url
* View view = 你导入的view 可以是null
* int i = 当前下载字节
* int i1 = 总字节
*/
}
});
break;
case R.id.btn4:
/**
* 第四种加载图片的方式
*/
new Thread(new Runnable() {
@Override
public void run() {
mBitmap = mImageLoader.loadImageSync("https://s0.52poke.wiki/wiki/thumb/5/53/054Psyduck.png/300px-054Psyduck.png");
runOnUiThread(new Runnable() {
@Override
public void run() {
mImage.setImageBitmap(mBitmap);
}
});
}
}).start();
break;
case R.id.btn5:
/**
* 第五种处理图片的方式,处理图片大小
*/
ImageSize targetSize1 = new ImageSize(100, 100); // result Bitmap will be fit to this size
mImageLoader.loadImage("https://s0.52poke.wiki/wiki/thumb/c/c6/094Gengar.png/300px-094Gengar.png", targetSize1, mOptions, new SimpleImageLoadingListener() {
@Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
mImage.setImageBitmap(loadedImage);
}
});
break;
case R.id.btn6:
new Thread(new Runnable() {
@Override
public void run() {
ImageSize targetSize2 = new ImageSize(80, 50); // result Bitmap will be fit to this size
mBitmap = mImageLoader.loadImageSync("https://s0.52poke.wiki/wiki/thumb/e/e2/133Eevee.png/300px-133Eevee.png", targetSize2, mOptions);
runOnUiThread(new Runnable() {
@Override
public void run() {
mImage.setImageBitmap(mBitmap);
}
});
}
}).start();
break;
default:
break;
}
}
}