效果截圖
PhotoView
PhotoView是一個github上的一個開源項目。
- 將下面加入到根build.gradle文件中
allprojects {
repositories {
maven { url "https://jitpack.io" }
}
}
- 然後,加入庫到你的模塊build.gradle
dependencies {
implementation 'com.github.chrisbanes:PhotoView:2.0.0'
}
MultiImageView
MultiImageView是多圖加載的一個控件,可根據app:maxSize來控制圖片加載個數,最多9個,多出來的在最後一個圖片上顯示總共圖片數量。
- 將下面加入到根build.gradle文件中
allprojects {
repositories {
maven { url 'https://jitpack.io' }
}
}
- 然後,加入庫到你的模塊build.gradle
dependencies {
implementation 'com.github.ydslib:MultiImageView:1.0.1'
}
使用
- ViewPager的adapter
package com.yds.mainmodule.adapter;
import android.app.Activity;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.viewpager.widget.PagerAdapter;
import com.bumptech.glide.Glide;
import com.yds.jianshulib.widget.photoview.PhotoView;
import java.util.List;
/**
* Created by yds
* on 2020/4/8.
*/
public class ImageViewPagerAdapter<T> extends PagerAdapter {
private List<T> mImageList;
private Context mContext;
public ImageViewPagerAdapter(List<T> mImageList, Context mContext) {
this.mImageList = mImageList;
this.mContext = mContext;
}
@NonNull
@Override
public Object instantiateItem(@NonNull ViewGroup container, int position) {
T url = mImageList.get(position);
PhotoView photoView = new PhotoView(mContext);
Glide.with(mContext)
.load(url)
.into(photoView);
container.addView(photoView);
photoView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
((Activity) mContext).finish();
}
});
return photoView;
}
@Override
public int getCount() {
return mImageList != null ? mImageList.size() : 0;
}
@Override
public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
return view == object;
}
@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
container.removeView((View) object);
}
@Override
public int getItemPosition(@NonNull Object object) {
return POSITION_NONE;
}
}
- PhotoViewActivity
package com.yds.mainmodule.mobile.activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;
import com.yds.jianshulib.base.mvp.BaseActivity;
import com.yds.jianshulib.base.mvp.IBasePresenter;
import com.yds.jianshulib.utils.statusbar.StatusBarUtil;
import com.yds.mainmodule.R;
import com.yds.mainmodule.adapter.ImageViewPagerAdapter;
import java.util.List;
/**
* Created by yds
* on 2020/4/8.
*/
public class PhotoViewActivity extends BaseActivity {
private ViewPager mImageViewPager;
private TextView mCurImageNum;
private int mCurrentPosition;
private List<String> mImageList;
@Override
protected void initLayout(@Nullable Bundle savedInstanceState) {
setContentView(R.layout.activity_photo_view);
}
@Override
protected void initViews() {
mImageViewPager = findViewById(R.id.view_pager);
mCurImageNum = findViewById(R.id.image_num);
Intent intent = getIntent();
mCurrentPosition = intent.getIntExtra("currentPosition", 0);
mImageList = (List<String>) intent.getSerializableExtra("imageUrlList");
}
@Override
protected void initEvents() {
ImageViewPagerAdapter adapter = new ImageViewPagerAdapter<>(mImageList, this);
mImageViewPager.setAdapter(adapter);
mImageViewPager.setCurrentItem(mCurrentPosition, false);
mCurImageNum.setText(mCurrentPosition + 1 + "/" + mImageList.size());
mImageViewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
super.onPageSelected(position);
mCurrentPosition = position;
mCurImageNum.setText(mCurrentPosition + 1 + "/" + mImageList.size());
}
});
}
@Override
protected IBasePresenter setPresenter() {
return null;
}
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
StatusBarUtil.setRootViewFitsSystemWindows(this, false);
}
}
RecyclerView的adapter
private MultiImageView mImageView;
......
viewHolder.mImageView.setOnItemImageClickListener(new MultiImageView.OnItemImageClickListener() {
@Override
public void onItemImageClick(Context context, ImageView imageView, int index, List list) {
Intent intent = new Intent(context, PhotoViewActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable("imageUrlList", (Serializable) list);
intent.putExtras(bundle);
intent.putExtra("currentPosition", index);
context.startActivity(intent);
}
});
- activity_photo_view.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:background="#b0000000"
android:orientation="vertical">
<TextView
android:id="@+id/image_num"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:textSize="16sp"
android:textColor="#ffffff"
tools:text="1/9"/>
<androidx.viewpager.widget.ViewPager
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</androidx.viewpager.widget.ViewPager>
</androidx.constraintlayout.widget.ConstraintLayout>