ClipPagerTitleView支持测量内容区域

Author: hackware1993

app/src/main/res/layout/activity_fragment_container_example_layout.xml

@@ -26,9 +26,4 @@
         android:layout_height="0dp"
         android:layout_weight="1" />
 
-    <net.lucode.hackware.magicindicator.MagicIndicator
-        android:id="@+id/magic_indicator2"
-        android:layout_width="match_parent"
-        android:layout_height="@dimen/common_navigator_height" />
-
 </LinearLayout>

magicindicator/src/main/java/net/lucode/hackware/magicindicator/buildins/commonnavigator/titles/ClipPagerTitleView.java

@@ -7,14 +7,14 @@
 import android.view.View;
 
 import net.lucode.hackware.magicindicator.buildins.UIUtil;
-import net.lucode.hackware.magicindicator.buildins.commonnavigator.abs.IPagerTitleView;
+import net.lucode.hackware.magicindicator.buildins.commonnavigator.abs.IMeasurablePagerTitleView;
 
 /**
  * 类似今日头条切换效果的指示器标题
  * 博客: http://hackware.lucode.net
  * Created by hackware on 2016/6/26.
  */
-public class ClipPagerTitleView extends View implements IPagerTitleView {
+public class ClipPagerTitleView extends View implements IMeasurablePagerTitleView {
     private String mText;
     private int mTextColor;
     private int mClipColor;
@@ -83,7 +83,7 @@ private int measureHeight(int heightMeasureSpec) {
     protected void onDraw(Canvas canvas) {
         int x = (getWidth() - mTextBounds.width()) / 2;
         Paint.FontMetrics fontMetrics = mPaint.getFontMetrics();
-        int y = (int) (getHeight() / 2 - fontMetrics.bottom / 2 - fontMetrics.top / 2);
+        int y = (int) ((getHeight() - fontMetrics.bottom - fontMetrics.top) / 2);
 
         // 画底层
         mPaint.setColor(mTextColor);
@@ -162,4 +162,30 @@ public void setClipColor(int clipColor) {
         mClipColor = clipColor;
         invalidate();
     }
+
+    @Override
+    public int getContentLeft() {
+        int contentWidth = mTextBounds.width();
+        return getLeft() + getWidth() / 2 - contentWidth / 2;
+    }
+
+    @Override
+    public int getContentTop() {
+        Paint.FontMetrics metrics = mPaint.getFontMetrics();
+        float contentHeight = metrics.bottom - metrics.top;
+        return (int) (getHeight() / 2 - contentHeight / 2);
+    }
+
+    @Override
+    public int getContentRight() {
+        int contentWidth = mTextBounds.width();
+        return getLeft() + getWidth() / 2 + contentWidth / 2;
+    }
+
+    @Override
+    public int getContentBottom() {
+        Paint.FontMetrics metrics = mPaint.getFontMetrics();
+        float contentHeight = metrics.bottom - metrics.top;
+        return (int) (getHeight() / 2 + contentHeight / 2);
+    }
 }