重新整理图片剪裁以便兼容后续视频封面更换

app/src/main/java/com/gh/common/view/CropImageZoomView.java

@@ -6,7 +6,6 @@ import android.graphics.Canvas;
 import android.graphics.Matrix;
 import android.graphics.RectF;
 import android.graphics.drawable.Drawable;
-import androidx.appcompat.widget.AppCompatImageView;
 import android.util.AttributeSet;
 import android.view.GestureDetector;
 import android.view.GestureDetector.SimpleOnGestureListener;
@@ -17,6 +16,8 @@ import android.view.View;
 import android.view.View.OnTouchListener;
 import android.view.ViewTreeObserver;
 
+import androidx.appcompat.widget.AppCompatImageView;
+
 @SuppressWarnings("deprecation")
 public class CropImageZoomView extends AppCompatImageView implements
         OnScaleGestureListener, OnTouchListener,
@@ -60,6 +61,10 @@ public class CropImageZoomView extends AppCompatImageView implements
      */
     private int mVerticalPadding;// ——屏幕顶部离截图区的高度
 
+    private float mRatio = 1; // 宽高比
+
+    private int mWidth;
+
     public CropImageZoomView(Context context) {
         this(context, null);
     }
@@ -290,8 +295,10 @@ public class CropImageZoomView extends AppCompatImageView implements
             Drawable d = getDrawable();
             if (d == null)
                 return;
+
+            mWidth = getWidth() - 2 * mHorizontalPadding;
             // 垂直方向的边距
-            mVerticalPadding = (getHeight() - (getWidth() - 2 * mHorizontalPadding)) / 2;
+            mVerticalPadding = (getHeight() - (int) (mWidth * mRatio)) / 2;
 
             int width = getWidth();
             int height = getHeight();
@@ -339,13 +346,16 @@ public class CropImageZoomView extends AppCompatImageView implements
                 Bitmap.Config.ARGB_8888);
         Canvas canvas = new Canvas(bitmap);
         draw(canvas);
-        return Bitmap.createBitmap(bitmap, mHorizontalPadding,
-                mVerticalPadding, getWidth() - 2 * mHorizontalPadding,
-                getWidth() - 2 * mHorizontalPadding);
+        return Bitmap.createBitmap(bitmap,
+                mHorizontalPadding,
+                mVerticalPadding,
+                mWidth,
+                (getHeight() - mVerticalPadding * 2));
     }
 
-    public void setHorizontalPadding(int mHorizontalPadding) {
+    public void setHorizontalPadding(int mHorizontalPadding, float ratio) {
         this.mHorizontalPadding = mHorizontalPadding;
+        this.mRatio = ratio;
     }
 
     /**