Question

为了使该座标具有透明度,我已经实施了以下法典。

    for(int i = 0; i < th.getTabWidget().getTabCount(); i++)
    {
    th.getTabWidget().getChildAt(i).setBackgroundColor(Color.TRANSPARENT);
    }

This changes the background of all the tabs to transparent successfully in ICS but when I test it on 2.2 and 2.3 the first 3 tabs backgrounds are transparent and the last 3 are not(I have 6 tabs in all)(incidentally the 1st 3 tabs are the ones that appear when that activity gets started)

造成这种情况的原因何在,如何解决这一问题。请帮助。

After applying your suggestion this is what i included in the code,

        th.setOnTabChangedListener(new OnTabChangeListener(){
        @Override
        public void onTabChanged(String tabId) {
            manageTabBackgrounds();
        }

        private void manageTabBackgrounds() {
            // TODO Auto-generated method stub
            for(int i = 0; i < th.getTabWidget().getTabCount(); i++)
            {
            th.getTabWidget().getChildAt(i).setBackgroundColor(Color.TRANSPARENT);
            }
        }           
    });

然而,这似乎对表格没有影响...... 页: 1

Answer 1

这是我最后的工作。

  th.setOnTabChangedListener(new OnTabChangeListener(){
        @Override
        public void onTabChanged(String tabId) {
            // TODO Auto-generated method stub
             for(int i=0;i<th.getTabWidget().getChildCount();i++)
                {
                   th.getTabWidget().getChildAt(i).setBackgroundColor(Color.TRANSPARENT); //unselected
                }
                th.getTabWidget().getChildAt(th.getCurrentTab()).setBackgroundColor(Color.TRANSPARENT); // selected
        }
        });

Answer 2

• 确保你在TabChange做事......

• 衡量你的职能(例如,“manageTabBackgrounds”):

yourTabHostInstance.setOnTabChangedListener(new OnTabChangeListener(){
    @Override
    public void onTabChanged(String tabId) {
        manageTabBackgrounds();
    }           
});

Answer 3

你们是否试图这样做?

<TabWidget
        android:id="@android:id/tabs"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@color/transparent">
    </TabWidget>

友情链接