效果圖先上。
implementation 'com.ycjiang:ImagePreview:2.3.5'
在Activity中初始化
@Override
public void onCreate() {
super.onCreate();
ZoomMediaLoader.getInstance().init(new TestImageLoader());
}
自定義圖片加載配置類 TestImageLoader (Glide 4.0以上)
import android.content.Context;
import android.graphics.Bitmap;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.widget.ImageView;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.DataSource;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import com.bumptech.glide.load.engine.GlideException;
import com.bumptech.glide.load.resource.gif.GifDrawable;
import com.bumptech.glide.request.RequestListener;
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;
import com.previewlibrary.loader.IZoomMediaLoader;
import com.previewlibrary.loader.MySimpleTarget;
public class TestImageLoader implements IZoomMediaLoader {
@Override
public void displayImage(@NonNull Fragment context, @NonNull String path, final ImageView imageView, @NonNull final MySimpleTarget simpleTarget) {
Glide.with(context)
.asBitmap()
.load(path)
.apply(new RequestOptions().fitCenter())
.into(new SimpleTarget<Bitmap>() {
@Override
public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
simpleTarget.onResourceReady();
imageView.setImageBitmap(resource);
}
});
}
@Override
public void displayGifImage(@NonNull Fragment context, @NonNull String path, ImageView imageView, @NonNull final MySimpleTarget simpleTarget) {
Glide.with(context)
.asGif()
.load(path)
//可以解決gif比較幾種時 ,加載過慢 //DiskCacheStrategy.NONE
.apply(new RequestOptions().diskCacheStrategy(DiskCacheStrategy.RESOURCE).dontAnimate())
//去掉顯示動畫
.listener(new RequestListener<GifDrawable>() {
@Override
public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<GifDrawable> target, boolean isFirstResource) {
simpleTarget.onResourceReady();
return false;
}
@Override
public boolean onResourceReady(GifDrawable resource, Object model, Target<GifDrawable> target, DataSource dataSource, boolean isFirstResource) {
simpleTarget.onLoadFailed(null);
return false;
}
})
.into(imageView);
}
@Override
public void onStop(@NonNull Fragment context) {
Glide.with(context).onStop();
}
@Override
public void clearMemory(@NonNull Context c) {
Glide.get(c).clearMemory();
}
}
自定義實體類
import android.graphics.Rect;
import android.os.Parcel;
import android.support.annotation.Nullable;
import com.previewlibrary.enitity.IThumbViewInfo;
/**
*
* @author ludoven
* @date 2020/4/22
* Deprecated: 圖片預覽實體類
**/
public class UserViewInfo implements IThumbViewInfo {
//圖片地址
private String url;
// 記錄座標
private Rect mBounds;
private String user = "用戶字段";
private String videoUrl;
public UserViewInfo(String url) {
this.url = url;
}
public UserViewInfo(String videoUrl,String url) {
this.url = url;
this.videoUrl = videoUrl;
}
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
@Override
public String getUrl() {//將你的圖片地址字段返回
return url;
}
public void setUrl(String url) {
this.url = url;
}
@Override
public Rect getBounds() {//將你的圖片顯示座標字段返回
return mBounds;
}
@Nullable
@Override
public String getVideoUrl() {
return videoUrl;
}
public void setBounds(Rect bounds) {
mBounds = bounds;
}
public void setVideoUrl(String videoUrl) {
this.videoUrl = videoUrl;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(this.url);
dest.writeParcelable(this.mBounds, flags);
dest.writeString(this.user);
dest.writeString(this.videoUrl);
}
protected UserViewInfo(Parcel in) {
this.url = in.readString();
this.mBounds = in.readParcelable(Rect.class.getClassLoader());
this.user = in.readString();
this.videoUrl = in.readString();
}
public static final Creator<UserViewInfo> CREATOR = new Creator<UserViewInfo>() {
@Override
public UserViewInfo createFromParcel(Parcel source) {
return new UserViewInfo(source);
}
@Override
public UserViewInfo[] newArray(int size) {
return new UserViewInfo[size];
}
};
}
這裏使用的是默認的預覽,自定義預覽詳情見GitHub地址
List<UserViewInfo> stringList=new ArrayList<>();
GPreviewBuilder.from(this)
.setData(stringList)
.setCurrentIndex(position)
.setSingleFling(true)//是否在黑屏區域點擊返回
.setDrag(true)//是否禁用圖片拖拽返回
.setType(GPreviewBuilder.IndicatorType.Number)//指示器類型
.start();//啓動