优化资源释放

Author: FlodCoding

.idea/codeStyles/Project.xml

@@ -8,7 +8,7 @@ android {
         minSdkVersion 17
         targetSdkVersion 28
         versionCode 100
-        versionName "1.0.0-alpha4"
+        versionName "1.0.0"
     }
 
     buildTypes {

.idea/misc.xml

@@ -29,7 +29,8 @@
  * 4、多次setCompoundDrawablesRelative,图片会发生偏移 √
  * 5、寻找一个合适的测量文字大小的时机，避免多次测量 √
  * 6、在draw时，避免用取出旧的drawable的bounds绘制，需要预先取出并存储起来,还需要注意在存储bounds时是不是有平移过 √
- * 7、
+ * 7、foreground会受平移影响 √
+ * 8、如果是只有hint没有Text需要也需要测量出文字大小√
  */
 @SuppressWarnings({"UnusedReturnValue", "unused", "SameParameterValue"})
 public class DrawableTextView extends AppCompatTextView {
@@ -119,6 +120,7 @@ protected void onLayout(boolean changed, int left, int top, int right, int botto
         }
     }
 
+
     protected void onFirstLayout(int left, int top, int right, int bottom) {
         measureTextWidth();
         measureTextHeight();
@@ -182,10 +184,16 @@ protected void onDraw(Canvas canvas) {
                 this.canvasTransY = transY;
             }
         }
-
         super.onDraw(canvas);
     }
 
+    @Override
+    public void onDrawForeground(Canvas canvas) {
+        //再次平移回去
+        canvas.translate(-canvasTransX, -canvasTransY);
+        super.onDrawForeground(canvas);
+    }
+
     /**
      * 计算drawable居中还需距离
      * 如果左右两边都有图片，左图片居中则需要加上右侧图片占用的空间{@link #getCompoundPaddingEnd()},其他同理
@@ -225,7 +233,13 @@ protected int getCanvasTransY() {
     protected void measureTextWidth() {
         final Rect textBounds = new Rect();
         getLineBounds(0, textBounds);
-        final float width = getPaint().measureText(getText().toString());
+        String text = "";
+        if (getText() != null && getText().length() > 0) {
+            text = getText().toString();
+        } else if (getHint() != null && getHint().length() > 0) {
+            text = getHint().toString();
+        }
+        final float width = getPaint().measureText(text);
         final float maxWidth = textBounds.width();
         mTextWidth = width <= maxWidth || maxWidth == 0 ? width : maxWidth;
     }
@@ -234,7 +248,8 @@ protected void measureTextWidth() {
      * 获取文本的高度，通过{@link #getLineHeight}乘文本的行数
      */
     protected void measureTextHeight() {
-        if (getText().length() > 0)
+        if ((getText() != null && getText().length() > 0)
+                || (getHint() != null && getHint().length() > 0))
             mTextHeight = getLineHeight() * getLineCount();
         else
             mTextHeight = 0;
@@ -257,19 +272,27 @@ public void setText(CharSequence text, BufferType type) {
 
     /**
      * 设置Drawable，并设置宽高
+     * 默认大小为Drawable的{@link Drawable#getBounds()} ,
+     * 如果Bounds宽高为0则，取Drawable的内部固定尺寸{@link Drawable#getIntrinsicHeight()}
      *
      * @param position {@link POSITION}
      * @param drawable Drawable
-     * @param width    DX
-     * @param height   DX
+     * @param width    Px
+     * @param height   Px
      */
     public void setDrawable(@POSITION int position, @Nullable Drawable drawable, @Px int width, @Px int height) {
         mDrawables[position] = drawable;
         if (drawable != null) {
             Rect bounds = new Rect();
             if (width == -1 && height == -1) {
-                bounds.right = drawable.getIntrinsicWidth();
-                bounds.bottom = drawable.getIntrinsicHeight();
+                if (drawable.getBounds().width() > 0 && drawable.getBounds().height() > 0) {
+                    //如果Bounds宽高大于0,则保持默认
+                    final Rect origin = drawable.getBounds();
+                    bounds.set(origin.left, origin.top, origin.right, origin.bottom);
+                } else {
+                    //否则取Drawable的内部大小
+                    bounds.set(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
+                }
             } else {
                 bounds.right = width;
                 bounds.bottom = height;
@@ -323,15 +346,19 @@ private void storeDrawables(@Nullable Drawable start, @Nullable Drawable top, @N
     protected Drawable[] copyDrawables(boolean clearOffset) {
         Drawable[] drawables = Arrays.copyOf(getDrawables(), 4);
         //clear offset
-        if (clearOffset) {
-            for (Drawable drawable : drawables) {
-                if (drawable != null) {
-                    Rect bounds = drawable.getBounds();
-                    bounds.offset(-bounds.left, -bounds.top);
-                }
+        if (clearOffset)
+            clearOffset(drawables);
+
+        return drawables;
+    }
+
+    private void clearOffset(Drawable... drawables) {
+        for (Drawable drawable : drawables) {
+            if (drawable != null) {
+                Rect bounds = drawable.getBounds();
+                bounds.offset(-bounds.left, -bounds.top);
             }
         }
-        return drawables;
     }
 
     protected int dp2px(float dpValue) {
@@ -389,18 +416,28 @@ public DrawableTextView setDrawableBottom(Drawable drawableBottom) {
         return this;
     }
 
-    public void setEnableCenterDrawables(boolean enable) {
+    public DrawableTextView setEnableCenterDrawables(boolean enable) {
+        if (enableCenterDrawables) {
+            //清除之前的位移
+            clearOffset(mDrawables);
+        }
         this.enableCenterDrawables = enable;
+        return this;
     }
 
-    public void setEnableTextInCenter(boolean enable) {
+    public DrawableTextView setEnableTextInCenter(boolean enable) {
         this.enableTextInCenter = enable;
+        return this;
     }
 
     public boolean isEnableTextInCenter() {
         return enableTextInCenter;
     }
 
+    public boolean isEnableCenterDrawables() {
+        return enableCenterDrawables;
+    }
+
     public Drawable[] getDrawables() {
         return mDrawables;
     }