Android 点击图片全屏预览 -——ZoomPreviewPicture默认预览使用

GitHub链接

效果图先上。

implementation 'com.ycjiang:ImagePreview:2.3.5'

 在Activity中初始化

  @Override
      public void onCreate() {
          super.onCreate();
          ZoomMediaLoader.getInstance().init(new TestImageLoader());
      }

 自定义图片加载配置类  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() {
                    @Override
                    public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition 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)
                //可以解决gif比较几种时 ，加载过慢  //DiskCacheStrategy.NONE
                .apply(new RequestOptions().diskCacheStrategy(DiskCacheStrategy.RESOURCE).dontAnimate())
                 //去掉显示动画
                .listener(new RequestListener() {
                    @Override
                    public boolean onLoadFailed(@Nullable GlideException e, Object model, Target target, boolean isFirstResource) {
                        simpleTarget.onResourceReady();
                        return false;
                    }

                    @Override
                    public boolean onResourceReady(GifDrawable resource, Object model, Target 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();
    }
}

 自定义实体类

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: 图片预览实体类
 **/
public class UserViewInfo implements IThumbViewInfo {
    //图片地址
    private String url;
    // 记录坐标
    private Rect mBounds;
    private String user = "用户字段";
    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() {//将你的图片地址字段返回
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    @Override
    public Rect getBounds() {//将你的图片显示坐标字段返回
        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 CREATOR = new Creator() {
        @Override
        public UserViewInfo createFromParcel(Parcel source) {
            return new UserViewInfo(source);
        }

        @Override
        public UserViewInfo[] newArray(int size) {
            return new UserViewInfo[size];
        }
    };
}

这里使用的是默认的预览，自定义预览详情见GitHub地址

 

                       List stringList=new ArrayList<>();
              
                        GPreviewBuilder.from(this)
                                .setData(stringList)
                                .setCurrentIndex(position)
                                .setSingleFling(true)//是否在黑屏区域点击返回
                                .setDrag(true)//是否禁用图片拖拽返回
                                .setType(GPreviewBuilder.IndicatorType.Number)//指示器类型
                                .start();//启动