用setListener放出图片加载细节 避免引入第三方框架 提升自定义空间

app/build.gradle

@@ -28,4 +28,5 @@ dependencies {
     testCompile 'junit:junit:4.12'
     compile 'com.android.support:appcompat-v7:24.2.1'
     compile project(':library')
+    compile 'com.github.bumptech.glide:glide:3.6.1'
 }

app/src/main/java/com/yyydjk/sliderlayoutdemo/MainActivity.java

@@ -2,14 +2,16 @@
 
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
+import android.widget.ImageView;
 import android.widget.Toast;
 
+import com.bumptech.glide.Glide;
 import com.yyydjk.library.BannerLayout;
 
 import java.util.ArrayList;
 import java.util.List;
 
-public class MainActivity extends AppCompatActivity{
+public class MainActivity extends AppCompatActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -18,6 +20,27 @@ protected void onCreate(Bundle savedInstanceState) {
 
         BannerLayout bannerLayout = (BannerLayout) findViewById(R.id.banner);
         BannerLayout bannerLayout2 = (BannerLayout) findViewById(R.id.banner2);
+        //setListener必须在setViewUrls之前
+        bannerLayout.setListener(new BannerLayout.ImageSetListener() {
+            @Override
+            public void setImage(Object res, ImageView imageView, int defaultImage) {
+                if (defaultImage != 0) {
+                    Glide.with(MainActivity.this).load(res).placeholder(defaultImage).centerCrop().into(imageView);
+                } else {
+                    Glide.with(MainActivity.this).load(res).centerCrop().into(imageView);
+                }
+            }
+        });
+        bannerLayout2.setListener(new BannerLayout.ImageSetListener() {
+            @Override
+            public void setImage(Object res, ImageView imageView, int defaultImage) {
+                if (defaultImage != 0) {
+                    Glide.with(MainActivity.this).load(res).placeholder(defaultImage).centerCrop().into(imageView);
+                } else {
+                    Glide.with(MainActivity.this).load(res).centerCrop().into(imageView);
+                }
+            }
+        });
 
         final List<String> urls = new ArrayList<>();
         urls.add("http://img3.imgtn.bdimg.com/it/u=2674591031,2960331950&fm=23&gp=0.jpg");

library/build.gradle

@@ -31,5 +31,4 @@ dependencies {
     compile fileTree(include: ['*.jar'], dir: 'libs')
     testCompile 'junit:junit:4.12'
     compile 'com.android.support:appcompat-v7:24.2.1'
-    compile 'com.github.bumptech.glide:glide:3.6.1'
 }

library/src/main/java/com/yyydjk/library/BannerLayout.java

@@ -23,8 +23,6 @@
 import android.widget.RelativeLayout;
 import android.widget.Scroller;
 
-import com.bumptech.glide.Glide;
-
 import java.lang.reflect.Field;
 import java.util.ArrayList;
 import java.util.List;
@@ -65,6 +63,16 @@ public class BannerLayout extends RelativeLayout {
 
     private int defaultImage;
 
+    public ImageSetListener getListener() {
+        return listener;
+    }
+
+    public void setListener(ImageSetListener listener) {
+        this.listener = listener;
+    }
+
+    private ImageSetListener listener;
+
     private int currentPosition;
 
     private enum Shape {
@@ -207,7 +215,8 @@ public void onClick(View v) {
             }
         });
         imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
-        Glide.with(getContext()).load(res).centerCrop().into(imageView);
+        listener.setImage(res, imageView, defaultImage);
+//        Glide.with(getContext()).load(res).centerCrop().into(imageView);
         return imageView;
     }
 
@@ -247,11 +256,12 @@ public void onClick(View v) {
             }
         });
         imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
-        if (defaultImage != 0){
-            Glide.with(getContext()).load(url).placeholder(defaultImage).centerCrop().into(imageView);
-        }else {
-            Glide.with(getContext()).load(url).centerCrop().into(imageView);
-        }
+        listener.setImage(url, imageView, defaultImage);
+//        if (defaultImage != 0){
+//            Glide.with(getContext()).load(url).placeholder(defaultImage).centerCrop().into(imageView);
+//        }else {
+//            Glide.with(getContext()).load(url).centerCrop().into(imageView);
+//        }
         return imageView;
     }
 
@@ -526,6 +536,10 @@ public void startScroll(int startX, int startY, int dx, int dy) {
             super.startScroll(startX, startY, dx, dy, mDuration);
         }
     }
+
+    public interface ImageSetListener{
+        void setImage(Object res, ImageView imageView , int defaultImage);
+    }
 }