Glide的使用示例
Glide：https://github.com/bumptech/glide
OkHttp：https://github.com/square/okhttp
glide-transformations：https://github.com/wasabeef/glide-transformations
EasyPhotos：https://github.com/HuanTanSheng/EasyPhotos
BigImageViewPager：https://github.com/SherlockGougou/BigImageViewPager
ImageViewer：https://github.com/iielse/imageviewer
从网络加载一张图片
String url = "http://ww3.sinaimg.cn/large/610dc034jw1f6m4aj83g9j20zk1hcww3.jpg";
ImageView imageView = findViewById(R.id.image_view);
Glide.with(this)
.load(url)
.placeholder(R.drawable.placeholder)
.error(R.drawable.error)
.into(imageView);
设置要显示图片的裁剪类型和尺寸大小
ImageView imageView = findViewById(R.id.imageView);
String url = "https://ww1.sinaimg.cn/large/610dc034jw1fahy9m7xw0j20u00u042l.jpg";
Glide.with(this)
.asBitmap()
.load(url)
.centerCrop() // 显示方式 .centerInside() .fitCenter()
.override(DensityUtils.dp2px(this, 200), DensityUtils.dp2px(this, 200)) // 要显示的尺寸大小
.into(new BitmapImageViewTarget(imageView) {
@Override
protected void setResource(Bitmap resource) {
super.setResource(resource);
}
});
从网络加载一张图片，并以圆形显示
Glide.with(this)
.load(url)
.circleCrop()
.into(imageView);
从网络加载一张图片，并以圆形加边框显示
Glide.with(this)
.load(url)
.transform(new CropCircleWithBorderTransformation(DensityUtils.dp2px(this, 3),
ContextCompat.getColor(this, R.color.yellow_border)))
.into(imageView);
从网络加载一张图片，并以四个圆角的外观显示
Glide.with(this)
.load(url)
.override(DensityUtils.dp2px(this, 90), DensityUtils.dp2px(this, 90))// 指定图片大小
.transform(new RoundedCornersTransformation(10, RoundedCornersTransformation.ScaleType.CENTER_CROP))
.into(imageView);
从res中加载图片
Glide.with(this).load(R.mipmap.ic_launcher).into(imageView);
从assets下面加载图片
Glide.with(this).load("file:///android_asset/qingchun.jpg").into(imageView);
从raw中加载图片
Glide.with(this).load("android.resource://com.frank.glide/raw/"+R.raw.raw_1).into(imageView);
从SDCard卡中加载图片
String filePath = Environment.getExternalStorageDirectory().getPath()+"/test.jpg";
Glide.with(this).load(filePath).into(imageView);
先加载缩略图然后再加载全图，用原图的1/10作为缩略图
ImageView imageView = findViewById(R.id.imageView);
String url = "https://hbimg.huabanimg.com/1e32c7149a30f530a1719ffeefbe4005679762ab647d3-qVyiMy_fw658";
Glide.with(this)
.load(url)
.thumbnail(0.1f)
.into(imageView);
从网络加载一张gif图片
ImageView imageView = findViewById(R.id.imageView);
String url = "https://n.sinaimg.cn/tech/transform/34/w512h322/20190626/ff7c-hyvnhqr0149633.gif";
Glide.with(this)
.asGif()
.load(url)
.placeholder(R.drawable.ic_launcher_foreground)
.error(R.drawable.ic_launcher_foreground)
.diskCacheStrategy(DiskCacheStrategy.NONE) // 表示不缓存任何内容
.into(imageView);
从网络加载一张gif图片，取第一帧图片显示
ImageView imageView = findViewById(R.id.imageView);
String url = "https://n.sinaimg.cn/tech/transform/34/w512h322/20190626/ff7c-hyvnhqr0149633.gif";
Glide.with(this)
.asBitmap() // 只加载静态图片，如果是git图片则只加载第一帧。
.load(url)
.placeholder(R.drawable.ic_launcher_foreground)
.error(R.drawable.ic_launcher_foreground)
.diskCacheStrategy(DiskCacheStrategy.NONE) // 表示不缓存任何内容
.into(imageView);
关闭缓存
Glide.with(this)
.load(url)
.skipMemoryCache(true)// 关闭内存缓存
.diskCacheStrategy(DiskCacheStrategy.NONE) //关闭磁盘缓存
.into(imageView);
高斯模糊
ImageView imageView = findViewById(R.id.imageView);
String url = "https://ww1.sinaimg.cn/large/610dc034jw1fahy9m7xw0j20u00u042l.jpg";
Glide.with(this)
.load(url)
.transform(new BlurTransformation(30))
.into(imageView);
转换为黑白色调
ImageView imageView = findViewById(R.id.imageView);
String url = "https://ww1.sinaimg.cn/large/610dc034jw1fahy9m7xw0j20u00u042l.jpg";
Glide.with(this)
.load(url)
.transform(new GrayscaleTransformation())
.into(imageView);
可添加后处理
ImageView imageView = findViewById(R.id.imageView);
String url = "https://ww1.sinaimg.cn/large/610dc034jw1fahy9m7xw0j20u00u042l.jpg";
Glide.with(this)
.asBitmap()
.load(url)
.circleCrop()
.override(DensityUtils.dp2px(this, 200), DensityUtils.dp2px(this, 200))
.into(new BitmapImageViewTarget(imageView) {
@Override
protected void setResource(Bitmap resource) {
super.setResource(resource);
}
});
从网络下载一张图片，下载完成后把Bitmap给我（返回的结果是在主线程）
Glide.with(this)
.asBitmap()
.load(url)
.circleCrop()
.override(DensityUtils.dp2px(this, 200), DensityUtils.dp2px(this, 200))
.into(new ImageViewTarget<Bitmap>(imageView) {
@Override
protected void setResource(Bitmap resource) {
// 下载后得到Bitmap
view.setImageBitmap(resource);
}
});
Glide.with(this)
.asDrawable()
.load(url)
.circleCrop()
.override(DensityUtils.dp2px(this, 200), DensityUtils.dp2px(this, 200))
.into(new DrawableImageViewTarget(imageView) {
@Override
protected void setResource(@Nullable Drawable resource) {
super.setResource(resource);
}
});
Glide.with(this)
.asDrawable()
.load(url)
.circleCrop()
.override(DensityUtils.dp2px(this, 200), DensityUtils.dp2px(this, 200))
.into(new ImageViewTarget<Drawable>(imageView) {
@Override
protected void setResource(Drawable resource) {
view.setImageDrawable(resource);
}
});
从网络下载一张图片，只下载不显示
Glide.with(this)
.load(url)
.asBitmap()
.toBytes()
.into(new CustomTarget<byte[]>() {
@Override
public void onResourceReady(@NonNull byte[] resource, @Nullable Transition<? super byte[]> transition) {
// 下载成功回调方法
}
@Override
public void onLoadCleared(@Nullable Drawable placeholder) {
}
});
val imageUrl = ""
val tvTitle: TextView? = null
Glide.with(itemView.context)
.asBitmap()
.load(imageUrl)
.apply(RequestOptions().override(Target.SIZE_ORIGINAL))
.into(object : CustomViewTarget<View, Bitmap>(tvTitle) {
override fun onLoadFailed(errorDrawable: Drawable?) {
}
override fun onResourceReady(
resource: Bitmap,
transition: Transition<in Bitmap>?
) {
// 回调在主线程
if (mLifecycle?.currentState != Lifecycle.State.DESTROYED) {
// do something
}
}
override fun onResourceCleared(placeholder: Drawable?) {
}
})
File file = Glide.with(this)
.load(url)
.submit()
.get();
Bitmap bitmap = Glide.with(this)
.load(url)
.asBitmap()
.into(width, height)
.get();
byte[] bytes = Glide.with(this)
.load(url)
.asBitmap()
.toBytes()
.into(width, height)
.get();