关于Glide的介绍已经无需多说,官方地址如下,分享一下我很久之前封装的基于Glide的图片加载工具类
https://github.com/bumptech/glide
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.text.TextUtils;
import android.view.View;
import android.widget.ImageView;
import com.bumptech.glide.Glide;
import com.bumptech.glide.Priority;
import com.bumptech.glide.RequestBuilder;
import com.bumptech.glide.load.Transformation;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import com.bumptech.glide.load.resource.bitmap.CenterCrop;
import com.bumptech.glide.load.resource.bitmap.CircleCrop;
import com.bumptech.glide.load.resource.bitmap.RoundedCorners;
import com.bumptech.glide.request.RequestOptions;
import com.bumptech.glide.request.target.SimpleTarget;
import com.bumptech.glide.request.target.Target;
import com.bumptech.glide.request.transition.Transition;
//使用这个类来结合Glide可以比较简单地实现毛玻璃效果~
//implementation 'jp.wasabeef:glide-transformations:3.1.1'
import jp.wasabeef.glide.transformations.BlurTransformation;
public class GlideHelper {
private static Context mContext;
public GlideHelper() {
}
//在Application中初始化GlideHelper
public static void initGlideHelper(Context context) {
mContext = context;
}
//加载网络图片
public static void showImage(ImageView view, String url, int isRound, Target target) {
RequestOptions options = (new RequestOptions()).diskCacheStrategy(DiskCacheStrategy.ALL).timeout(60000).priority(Priority.HIGH);
if (isRound == 1) { //圆形带有边框效果
options.transform(new GlideCircleStrokeTransform());
} else if (isRound == 2) { //圆形无边框效果
options.transform(new CircleCrop());
} else if (isRound == 3) { //自定义所加载View的弧度
options.transforms(new Transformation[]{new CenterCrop(), new RoundedCorners(mContext.getResources().getDimensionPixelOffset(dimen.x10))});
}
RequestBuilder builder = Glide.with(mContext).load(url).apply(options);
if (target == null) {
builder.into(view);
} else {
builder.into(target);
}
}
//加载本地资源图片
public static void showImage(ImageView view, int resourceId, int isRound, Target target) {
RequestOptions options = (new RequestOptions()).diskCacheStrategy(DiskCacheStrategy.ALL).timeout(60000).priority(Priority.HIGH);
if (isRound == 1) {
options.transform(new GlideCircleStrokeTransform());
} else if (isRound == 2) {
options.transform(new CircleCrop());
} else if (isRound == 3) {
options.transforms(new Transformation[]{new CenterCrop(), new RoundedCorners(mContext.getResources().getDimensionPixelOffset(dimen.x10))});
}
RequestBuilder builder = Glide.with(mContext).load(resourceId).apply(options);
if (target == null) {
builder.into(view);
} else {
builder.into(target);
}
}
//设置默认占位图和加载出现错误时的缺省图
public static void showImage(ImageView view, String url, int placeHolder, int isRound, Target target) {
RequestOptions options = (new RequestOptions()).timeout(60000).placeholder(placeHolder).error(placeHolder).diskCacheStrategy(DiskCacheStrategy.ALL).priority(Priority.HIGH);
if (isRound == 1) {
options.transform(new GlideCircleStrokeTransform());
} else if (isRound == 2) {
options.transform(new CircleCrop());
} else if (isRound == 3) {
options.transforms(new Transformation[]{new CenterCrop(), new RoundedCorners(mContext.getResources().getDimensionPixelOffset(dimen.x10))});
}
RequestBuilder builder = Glide.with(mContext).load(url).apply(options);
if (target == null) {
builder.into(view);
} else {
builder.into(target);
}
}
//加载Gif
public static void showGifImage(ImageView view, String url) {
RequestOptions options = (new RequestOptions()).diskCacheStrategy(DiskCacheStrategy.RESOURCE).timeout(60000).priority(Priority.HIGH);
Glide.with(mContext).load(url).apply(options).into(view);
}
//加载Gif,可传Target,Target可在此方法内创建,也可由外部创建再传入
public static void showGifImage(ImageView view, String url, Target target) {
RequestOptions options = (new RequestOptions()).diskCacheStrategy(DiskCacheStrategy.ALL).timeout(60000).priority(Priority.HIGH);
RequestBuilder builder = Glide.with(mContext).asGif().load(url).apply(options);
if (target == null) {
builder.into(view);
} else {
builder.into(target);
}
}
//加载毛玻璃效果,BlurTransformation()括号内数字为毛玻璃效果的程度
public static void showGaosImage(ImageView view, int url, Target target) {
RequestOptions options = (new RequestOptions()).diskCacheStrategy(DiskCacheStrategy.ALL).timeout(60000).transforms(new Transformation[]{new BlurTransformation(50)}).priority(Priority.HIGH);
RequestBuilder builder = Glide.with(mContext).load(url).apply(options);
if (target == null) {
builder.into(view);
} else {
builder.into(target);
}
}
//加载本地图片
public static void showImage(ImageView view, int resourceId, Target target) {
RequestOptions options = (new RequestOptions()).diskCacheStrategy(DiskCacheStrategy.ALL).timeout(60000).priority(Priority.HIGH);
RequestBuilder builder = Glide.with(mContext).load(resourceId).apply(options);
if (target == null) {
builder.into(view);
} else {
builder.into(target);
}
}
//ImageView加载本地图片
public static void showImage(ImageView view, String url) {
showImageWithTarget(view, url, (Target)null);
}
//View加载网络图片
public static void showImageWithTarget(ImageView view, String url, Target target) {
if (!TextUtils.isEmpty(url)) {
showImage(view, url, 0, target);
}
}
//View加载本地图片
public static void showImageWithTarget(ImageView view, int resourceId, int isRound, Target target) {
showImage(view, resourceId, isRound, target);
}
//内部创建Target对象
public static void showTargetImage(final View view, String url) {
Target target = new SimpleTarget<Drawable>() {
public void onResourceReady(Drawable resource, Transition transition) {
view.setBackgroundDrawable(resource);
}
};
showImageWithTarget((ImageView)null, url, target);
}
//View加载本地图片资源
public static void showTargetImage(final View view, int resourceId, int isRound) {
Target target = new SimpleTarget<Drawable>() {
public void onResourceReady(Drawable resource, Transition transition) {
view.setBackgroundDrawable(resource);
}
};
showImageWithTarget((ImageView)null, resourceId, isRound, target);
}
//View加载网络图片,圆形有边框
public static void showRoundImageWithStroke(ImageView view, String url) {
if (!TextUtils.isEmpty(url)) {
(new RequestOptions()).timeout(60000).placeholder(drawable.empty_photo).error(drawable.empty_photo).diskCacheStrategy(DiskCacheStrategy.ALL);
RequestOptions options = RequestOptions.bitmapTransform(new GlideCircleStrokeTransform()).priority(Priority.HIGH);
Glide.with(mContext).load(url).apply(options).into(view);
}
}
//加载图片圆形无边框
public static void showRoundImageNoStroke(ImageView view, String url) {
if (!TextUtils.isEmpty(url)) {
showImage(view, url, 2, (Target)null);
}
}
//加载图片圆形无边框
public static void showRoundImageNoStroke(ImageView view, String url, int placeHolder) {
if (!TextUtils.isEmpty(url)) {
showImage(view, url, placeHolder, 2, (Target)null);
}
}
}
自定义BitmapTransformation
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Bitmap.Config;
import android.graphics.Paint.Cap;
import android.graphics.Paint.Style;
import android.graphics.Shader.TileMode;
import android.support.annotation.ColorInt;
import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;
import java.security.MessageDigest;
public class GlideCircleStrokeTransform extends BitmapTransformation {
private int mBorderWidth = 4;
private int mBorderColor = -1;
public GlideCircleStrokeTransform() {
}
public GlideCircleStrokeTransform(int borderWidth, @ColorInt int borderColor) {
this.mBorderWidth = borderWidth;
this.mBorderColor = borderColor;
}
protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
int size = Math.min(toTransform.getWidth(), toTransform.getHeight());
int x = (toTransform.getWidth() - size) / 2;
int y = (toTransform.getHeight() - size) / 2;
Bitmap squaredBitmap = Bitmap.createBitmap(toTransform, x, y, size, size);
Bitmap bitmap = Bitmap.createBitmap(size, size, toTransform.getConfig() != null ? toTransform.getConfig() : Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
BitmapShader shader = new BitmapShader(squaredBitmap, TileMode.CLAMP, TileMode.CLAMP);
paint.setShader(shader);
paint.setAntiAlias(true);
Paint mBorderPaint = new Paint();
mBorderPaint.setStyle(Style.STROKE);
mBorderPaint.setStrokeWidth((float)this.mBorderWidth);
mBorderPaint.setColor(this.mBorderColor);
mBorderPaint.setStrokeCap(Cap.ROUND);
mBorderPaint.setAntiAlias(true);
float r = (float)size / 2.0F;
float r1 = (float)(size - 2 * this.mBorderWidth) / 2.0F;
canvas.drawCircle(r, r, r1, paint);
canvas.drawCircle(r, r, r1, mBorderPaint);
squaredBitmap.recycle();
return bitmap;
}
public void updateDiskCacheKey(MessageDigest messageDigest) {
}
}
封装已久,有待优化.工具类的封装仁者见仁智者见智,如果大家有更好的封装方法,欢迎交流~
希望可以帮到大家~如文中有错误请留言指正：一同交流，一起进步。
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