RoundImageView.java 加载过大图片造成的 OOM （对位图资源做有限压缩再加载）

https://console.firebase.google.com/project/tencent-iot/crashlytics/app/android:com.tencent.iot.explorer.link.opensource/issues/9bd4aba9acbf61491b70df11fd0732fa?time=last-ninety-days&sessionEventKey=60617EA4023D0001399A3EDE8FD78668_1523417519714142575

Change-Id: I3ab9ae42a65b56f998d161a3e46fcf9b017e8110

Author: sevenhhe

app/src/main/java/com/tencent/iot/explorer/link/customview/image/RoundImageView.java

@@ -2,26 +2,27 @@
 
 import android.content.Context;
 import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
 import android.graphics.Paint;
-import android.graphics.PixelFormat;
 import android.graphics.PorterDuff;
 import android.graphics.PorterDuffXfermode;
 import android.graphics.Rect;
-import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.NinePatchDrawable;
 import android.util.AttributeSet;
 
 import androidx.appcompat.widget.AppCompatImageView;
 
-/**
- * 将矩形的图片裁剪成圆形
- * 圆形ImageView，可设置最多两个宽度不同且颜色不同的圆形边框。
- * Created by THINK on 2017/4/26.
- */
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
 
 public class RoundImageView extends AppCompatImageView {
+    public static int defaultKeepValue = 50; //默认压缩到 50KB
+    private static int ORI_SCALE = 100; //原始比例
+
     private int mBorderThickness = 0;
     private int defaultColor = 0xFFFFFFFF;
     // 如果只有其中一个有值，则只画一个圆形边框
@@ -128,7 +129,45 @@ private Bitmap drawableToBitmap(Drawable drawable, int w, int h) {
         drawable.setBounds(0, 0, w, h);
         // 把 drawable 内容画到画布中
         drawable.draw(canvas);
-        return bitmap;
+        return compressImage(bitmap, defaultKeepValue);
+    }
+
+    private double getBitmapSize(Bitmap image) {  // 解析图片失败，直接返回没有大小
+        try (ByteArrayOutputStream tagBaos = new ByteArrayOutputStream()) {
+            image.compress(Bitmap.CompressFormat.JPEG, ORI_SCALE, tagBaos);
+            double imgBytes = tagBaos.toByteArray().length * 1.0 / 1024;
+            return imgBytes;
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return 0;
+    }
+
+    private Bitmap compressImage(Bitmap image, int expectSize) {
+        if (image == null) return null;
+
+        int options = ORI_SCALE;
+        double imgBytes = getBitmapSize(image);
+        if (imgBytes <= 0) return image; // 没有尺寸结果，返回原图
+
+        try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
+            if (imgBytes > expectSize) { // 超出默认的值。计算新的尺寸
+                options = (int) (expectSize / imgBytes * ORI_SCALE);
+                if (options <= 0) options = 1;
+            }
+
+            image.compress(Bitmap.CompressFormat.JPEG, options, baos);
+            try (ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray())) {//获取图片输入流
+                return BitmapFactory.decodeStream(isBm, null, null);
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return image; // 获取图片流失败，返回原图
     }
 
     /**

app/src/main/java/com/tencent/iot/explorer/link/kitlink/fragment/MeFragment.kt

@@ -74,12 +74,7 @@ class MeFragment : BaseFragment(), View.OnClickListener, MyCallback {
     private fun showUserInfo() {
         tv_me_name.text = App.data.userInfo.NickName
         tv_me_phone.text = App.data.userInfo.PhoneNumber
-        ImageManager.setImagePath(
-            this.context,
-            me_portrait,
-            App.data.userInfo.Avatar,
-            0
-        )
+        ImageManager.setImagePath(this.context, me_portrait, App.data.userInfo.Avatar, 0)
     }
 
     override fun fail(msg: String?, reqCode: Int) {