Android TabLayout设置指示器宽度的方法

@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {  super.onMeasure(widthMeasureSpec, heightMeasureSpec);  int dp10 = CommUitls.dip2px(context, 10);  LinearLayout mTabStrip = (LinearLayout) this.getChildAt(0);  try {    Field mTabs = TabLayout.class.getDeclaredField("mTabs");    mTabs.setAccessible(true);    ArrayList<Tab> tabs = (ArrayList<Tab>) mTabs.get(this);    for (int i = 0; i < mTabStrip.getChildCount(); i++) {      Tab tab = tabs.get(i);      Field mView = tab.getClass().getDeclaredField("mView");      mView.setAccessible(true);      Object tabView = mView.get(tab);      Field mTextView = context.getClassLoader().loadClass("android.support.design.widget.TabLayout$TabView").getDeclaredField("mTextView");      mTextView.setAccessible(true);      TextView textView = (TextView) mTextView.get(tabView);      float textWidth = textView.getPaint().measureText(textView.getText().toString());      View child = mTabStrip.getChildAt(i);      child.setPadding(0, 0, 0, 0);      LinearLayout.LayoutParams params = new LinearLayout.LayoutParams((int) textWidth, LinearLayout.LayoutParams.MATCH_PARENT);      params.leftMargin = dp10;      params.rightMargin = dp10;      child.setLayoutParams(params);      child.invalidate();    }  } catch (Exception e) {    e.printStackTrace();  }}