添加查看原图demo

app/build.gradle

@@ -1,12 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 27
-    buildToolsVersion '27.0.2'
+    compileSdkVersion 28
+    buildToolsVersion '28.0.3'
     defaultConfig {
         applicationId "ch.ielse.demo.p02"
-        minSdkVersion 14
-        targetSdkVersion 27
+        minSdkVersion 15
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }
@@ -19,8 +19,8 @@ android {
 }
 
 dependencies {
-    implementation 'com.android.support:appcompat-v7:27.0.2'
-    implementation 'com.android.support:recyclerview-v7:27.0.2'
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support:recyclerview-v7:28.0.0'
     implementation 'com.github.bumptech.glide:glide:4.6.1'
     annotationProcessor 'com.github.bumptech.glide:compiler:4.6.1'
 

app/src/main/java/ch/ielse/demo/p02/CustomLoadingUIProvider2.java

@@ -0,0 +1,47 @@
+package ch.ielse.demo.p02;
+
+import android.content.Context;
+import android.os.Handler;
+import android.view.Gravity;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import android.widget.ImageView;
+
+import com.github.ielse.imagewatcher.ImageWatcher;
+
+
+public class CustomLoadingUIProvider2 implements ImageWatcher.LoadingUIProvider {
+    private final FrameLayout.LayoutParams lpCenterInParent = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+    private final Handler mHandler = new Handler();
+
+    private Runnable runDelayDisplay;
+
+    @Override
+    public View initialView(Context context) {
+        ImageView load = new ImageView(context);
+        lpCenterInParent.gravity = Gravity.CENTER;
+        load.setLayoutParams(lpCenterInParent);
+        load.setImageResource(R.mipmap.loading);
+        return load;
+    }
+
+    @Override
+    public void start(final View loadView) {
+        if (runDelayDisplay != null) mHandler.removeCallbacks(runDelayDisplay);
+        runDelayDisplay = new Runnable() {
+            @Override
+            public void run() {
+                loadView.setVisibility(View.VISIBLE);
+            }
+        };
+        mHandler.postDelayed(runDelayDisplay, 500);
+    }
+
+    @Override
+    public void stop(View loadView) {
+        if (runDelayDisplay != null) mHandler.removeCallbacks(runDelayDisplay);
+        runDelayDisplay = null;
+        loadView.setVisibility(View.GONE);
+    }
+}

app/src/main/java/ch/ielse/demo/p02/DecorationLayout.java

@@ -0,0 +1,93 @@
+package ch.ielse.demo.p02;
+
+import android.content.Context;
+import android.net.Uri;
+import android.support.v4.view.ViewPager;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.github.ielse.imagewatcher.ImageWatcher;
+import com.github.ielse.imagewatcher.ImageWatcherHelper;
+
+public class DecorationLayout extends FrameLayout implements ViewPager.OnPageChangeListener, View.OnClickListener {
+
+    private ImageWatcherHelper mHolder;
+    private TextView vDisplayOrigin;
+    private View vDownload;
+    private int currentPosition;
+    private int mPagerPositionOffsetPixels;
+
+    public DecorationLayout(Context context) {
+        super(context);
+        final FrameLayout vContainer = (FrameLayout) LayoutInflater.from(context).inflate(R.layout.layout_watcher_decoration, this);
+        vDisplayOrigin = vContainer.findViewById(R.id.vDisplayOrigin);
+        vDisplayOrigin.setOnClickListener(this);
+        vDownload = vContainer.findViewById(R.id.vDownload);
+        vDownload.setOnClickListener(this);
+
+    }
+
+    public void attachImageWatcher(ImageWatcherHelper iwHelper) {
+        mHolder = iwHelper;
+    }
+
+
+    @Override
+    public void onClick(View v) {
+        if (mPagerPositionOffsetPixels != 0) return;
+
+        if (v.getId() == R.id.vDownload) {
+            final int clickPosition = currentPosition;
+            Toast.makeText(v.getContext().getApplicationContext(), "download [" + clickPosition + "] ", Toast.LENGTH_SHORT).show();
+        } else if (v.getId() == R.id.vDisplayOrigin) {
+            final int clickPosition = currentPosition;
+            Toast.makeText(v.getContext().getApplicationContext(), "display origin [" + clickPosition + "]", Toast.LENGTH_SHORT).show();
+            Uri newUri = Uri.parse("https://pub-static.haozhaopian.net/static/web/site/features/cn/crop/images/crop_20a7dc7fbd29d679b456fa0f77bd9525d.jpg");
+            notifyAdapterItemChanged(clickPosition, newUri);
+
+        }
+    }
+
+    @Override
+    public void onPageScrolled(int i, float v, int i1) {
+        mPagerPositionOffsetPixels = i1;
+        notifyAlphaChanged(v);
+        //     setAlpha(1 - v);
+    }
+
+    @Override
+    public void onPageSelected(int i) {
+        currentPosition = i;
+    }
+
+    @Override
+    public void onPageScrollStateChanged(int i) {
+
+    }
+
+    private void notifyAdapterItemChanged(int position, Uri newUri) {
+        if (mHolder != null) {
+            final ImageWatcher iw = mHolder.getImageWatcher();
+            if (iw != null) {
+                iw.notifyItemChanged(position, newUri);
+            }
+        }
+    }
+
+    private void notifyAlphaChanged(float p) {
+        if (0 < p && p <= 0.2f) {
+            float r = (0.2f - p) * 5;
+            setAlpha(r);
+        } else if (0.8f <= p && p < 1) {
+            float r = (p - 0.8f) * 5;
+            setAlpha(r);
+        } else if (p == 0) {
+            setAlpha(1f);
+        } else {
+            setAlpha(0f);
+        }
+    }
+}

app/src/main/java/ch/ielse/demo/p02/MainActivity.java

@@ -64,7 +64,7 @@ public void onClick(View v) {
         // 长按图片的回调，你可以显示一个框继续提供一些复制，发送等功能
         vImageWatcher.setOnPictureLongPressListener(this);
         vImageWatcher.setLoader(new GlideSimpleLoader());
-        vImageWatcher.setOnStateChangedListener(new ImageWatcher.OnStateChangedListener() {
+        vImageWatcher.addOnStateChangedListener(new ImageWatcher.OnStateChangedListener() {
             @Override
             public void onStateChangeUpdate(ImageWatcher imageWatcher, ImageView clicked, int position, Uri uri, float animatedValue, int actionTag) {
                 Log.e("IW", "onStateChangeUpdate [" + position + "][" + uri + "][" + animatedValue + "][" + actionTag + "]");

app/src/main/java/ch/ielse/demo/p02/MainActivity2.java

@@ -26,6 +26,8 @@ public class MainActivity2 extends Activity implements MessagePicturesLayout.Cal
     private RecyclerView vRecycler;
     private MessageAdapter adapter;
 
+    private DecorationLayout layDecoration;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         boolean isTranslucentStatus = false;
@@ -40,6 +42,7 @@ protected void onCreate(Bundle savedInstanceState) {
         }
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main2);
+        layDecoration = new DecorationLayout(this);
 
         vRecycler = (RecyclerView) findViewById(R.id.v_recycler);
         vRecycler.setLayoutManager(new LinearLayoutManager(this));
@@ -74,7 +77,12 @@ public void onStateChanged(ImageWatcher imageWatcher, int position, Uri uri, int
                         }
                     }
                 })
-                .setLoadingUIProvider(new CustomLoadingUIProvider()); // 自定义LoadingUI
+                .setOtherView(layDecoration)
+                .addOnPageChangeListener(layDecoration)
+                .setLoadingUIProvider(new CustomLoadingUIProvider2()); // 自定义LoadingUI
+
+
+        layDecoration.attachImageWatcher(iwHelper);
 
 
         Utils.fitsSystemWindows(isTranslucentStatus, findViewById(R.id.v_fit));

app/src/main/java/ch/ielse/demo/p02/MainActivity4.java

@@ -66,7 +66,8 @@ public void onClick(View v) {
 
 
         iwHelper = ImageWatcherHelper.with(this, new GlideSimpleLoader()) // 一般来讲， ImageWatcher 需要占据全屏的位置
-                .setIndexProvider(new CustomDotIndexProvider()); // 自定义index
+                .setIndexProvider(new CustomDotIndexProvider()) // 自定义index
+                .setLoadingUIProvider(new CustomLoadingUIProvider()); // 骰子loading
 
     }
 

app/src/main/res/drawable/b_white_ffffff_stroke_round_3_shape.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners android:radius="3dp" />
+    <stroke
+        android:width="0.5dp"
+        android:color="#fff" />
+
+    <solid android:color="#88000000" />
+
+</shape>

app/src/main/res/layout/layout_watcher_decoration.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:id="@+id/vDisplayOrigin"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|center_horizontal"
+        android:layout_marginBottom="15dp"
+        android:background="@drawable/b_white_ffffff_stroke_round_3_shape"
+        android:includeFontPadding="false"
+        android:paddingLeft="7dp"
+        android:paddingTop="4dp"
+        android:paddingRight="7dp"
+        android:paddingBottom="4dp"
+        android:text="查看原图"
+        android:textColor="#fff"
+        android:textSize="12sp" />
+
+
+    <ImageView
+        android:id="@+id/vDownload"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="right|bottom"
+        android:layout_margin="5dp"
+        android:padding="10dp"
+        android:src="@mipmap/download" />
+
+</FrameLayout>

app/src/main/res/values/strings.xml

@@ -1,4 +1,5 @@
 <resources>
     <string name="app_name">ImageWatcher</string>
 
+
 </resources>

build.gradle

@@ -9,7 +9,7 @@ buildscript {
         maven { url 'https://maven.google.com' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip