我正在开发一个应用程序,我想在其中使用android操作栏选项卡。我使用了操作栏标签。但是当我运行应用程序时,它给了我一个例外。它给出异常" java.lang.IllegalStateException:Action Bar Tab必须有一个Callback"。请帮助我,并提前致谢
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionBar.setDisplayShowTitleEnabled(false);
Tab tab = actionBar.newTab().setText("xyzabc");
actionBar.addTab(tab);
tab.setTabListener(new TabListener() {
@Override
public void onTabUnselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
@Override
public void onTabSelected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
@Override
public void onTabReselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
});
Tab tab1 = actionBar.newTab().setText("pqrabc");
actionBar.addTab(tab1);
tab1.setTabListener(new TabListener() {
@Override
public void onTabUnselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
@Override
public void onTabSelected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
@Override
public void onTabReselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
});
}
}
答案 0 :(得分:0)
首先应设置标签监听器,然后将其添加到操作栏:
Tab tab1 = actionBar.newTab().setText("pqrabc");
tab1.setTabListener(new TabListener() {...})
actionBar.addTab(tab1);