android TabLayout 相关

Posted 2020-12-18 lei.li

1. TabLayout 设置 指示条 颜色、高度，字体颜色大小等

<android.support.design.widget.TabLayout
    android:id="@+id/tab_layout"
    android:layout_width="wrap_content"
    android:layout_height="80dp"
    android:background="@color/colorAccent"
    android:layout_gravity="top"
    app:tabIndicatorColor="@color/colorBlue"
    app:tabIndicatorHeight="10dp"
    app:tabSelectedTextColor="@color/colorBlue"
    app:tabTextAppearance="@style/MyTabLayoutText"
    app:tabTextColor="@color/black" />

添加style

<style name="MyTabLayoutText" parent="TextAppearance.Design.Tab">
       
    <item name="android:textSize">40sp</item>
</style>

2.TabLayout 添加tab方法

mTabLayout.setTabMode(TabLayout.MODE_SCROLLABLE);
mTabLayout.addTab(mTabLayout.newTab().setText(ResourcesUtil.getString(
    this, R.string.txt_to_send_title)).setTag(TAG_TO_SEND));
mTabLayout.addTab(mTabLayout.newTab().setText(ResourcesUtil.getString(
    this, R.string.txt_wonderful_review)).setTag(TAG_SEND_REVIEW));
mTabLayout.addOnTabSelectedListener(this);

3.TabLayout 设置子item margin值方法

public void setTabItem(@NonNull final TabLayout tabLayout, int marginRight) {
    LogUtil.d(TAG + "setTabItem 000 tabLayout:" + tabLayout);
    tabLayout.post(new Runnable() {
        @Override
        public void run() {
            try {
                LogUtil.d(TAG + "setTabItem 111");
                //Get the mtabstrip property of tablayout.
                Field tabStripField = tabLayout.getClass().getDeclaredField("mTabStrip");
                tabStripField.setAccessible(true);
                LinearLayout tabStrip = (LinearLayout) tabStripField.get(tabLayout);
                int count = tabStrip.getChildCount();
                for (int i = 0; i < count; i++) {
                    View tabView = tabStrip.getChildAt(i);
                    //Get the mtextview property of tabview.
                    Field textViewField = tabView.getClass().getDeclaredField("mTextView");
                    textViewField.setAccessible(true);
                    TextView textView = (TextView) textViewField.get(tabView);
                    tabView.setPadding(0, 0, 0, 0);
                    //Because I want the effect to be as wide as the line is,
                    // measure the width of mtextview.
                    int width = textView.getWidth();
                    if (width == 0) {
                        textView.measure(0, 0);
                        width = textView.getMeasuredWidth();
                    }
                    //Set the space between the left and right of the tab.Note that padding
                    // cannot be used here, because the width of the centerline in the
                    // source code is set according to the width of the tabview
                    LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)
                        tabView.getLayoutParams();
                    params.width = width;      //The width of the indicator bar is set here.
                    //params.leftMargin = margin;
                    LogUtil.d(TAG + "setTabItem 222 marginRight:" + marginRight);
                    if (i < count - 1) {
                        params.rightMargin = marginRight;
                    }
                    //params.bottomMargin = marginBottom;
                    tabView.setLayoutParams(params);
                    tabView.invalidate();
                }
            } catch (NoSuchFieldException e) {
                LogUtil.d(TAG + "setTabItem 333 error:" + e);
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                LogUtil.d(TAG + "setTabItem 444 error:" + e);
                e.printStackTrace();
            }
        }
    });
}