我有类 CustomTab 扩展 TabActivity:
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.custom_tab);
tabHost = getTabHost();
Intent intentA = new Intent(getBaseContext(), A.class);
Intent intentB = new Intent(getBaseContext(), B.class);
Intent intentC = new Intent(getBaseContext(), C.class);
TabSpec tabA = tabHost
.newTabSpec("a")
.setIndicator("",
getResources().getDrawable(R.drawable.icon_a))
.setContent(intentA);
TabSpec tabB = tabHost
.newTabSpec("b")
.setIndicator(
"",
getResources()
.getDrawable(R.drawable.icon_b))
.setContent(intentB);
TabSpec tabC = tabHost
.newTabSpec("c")
.setIndicator("",
getResources().getDrawable(R.drawable.icon_c))
.setContent(intentC);
tabHost.addTab(tabA);
tabHost.addTab(tabB);
tabHost.addTab(tabC);
tabHost.setCurrentTab(0);
和活动 B:
Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.b);
((CustomTab) getParent()).getTabHost().setCurrentTab(3);
我想在运行活动 B 时切换到选项卡 3(活动 C)所以我尝试使用“((CustomTab)getParent()).getTabHost().setCurrentTab(3);” 它只改变标签,但内容没有改变,我创建了一个类似但没有收到正确答案的主题。