android设置表情大小同字体

Author: ellieshen

android/src/main/java/com/variabletextinput/util/BitmapUtil.java

@@ -2,6 +2,7 @@
 
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.graphics.Matrix;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.Typeface;
@@ -28,4 +29,14 @@ public static Bitmap getTextBitmap(String name, Typeface typeface, float fontSiz
     canvas.drawText(name, rect.left, rect.height() - rect.bottom, paint);
     return bmp;
   }
+
+  public static Bitmap setBitmapSize(Bitmap bitmap, float size) {
+    int width = bitmap.getWidth();
+    int height = bitmap.getHeight();
+    float scaleWidth = ((float) size) / width;
+    float scaleHeight = ((float) size) / height;
+    Matrix matrix = new Matrix();
+    matrix.postScale(scaleWidth, scaleHeight);
+    return Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
+  }
 }

android/src/main/java/com/variabletextinput/view/VariableTextInput.java

@@ -438,7 +438,7 @@ public void insertEmoji(RichTextBean richTextBean) {
       editText.getText().insert(startIndex, richTextBean.tag);
     }
     Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.kuxiao);
-    TextSpan imageSpan = new TextSpan(mContext, bitmap, richTextBean);
+    TextSpan imageSpan = new TextSpan(mContext, BitmapUtil.setBitmapSize(bitmap, editText.getTextSize()), richTextBean);
     mSpannableString = SpannableString.valueOf(editText.getText());
     mSpannableString.setSpan(imageSpan, startIndex, endIndex, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
     editText.setText(mSpannableString);