我所拥有的是左导航菜单,我使用导航抽屉,它与碎片一起工作得很好,我有五个按钮,每个打开一个片段,但现在我希望每个案例打开一个活动,而不是片段,和我试图使用意图但它没有用!! 这是我的代码:
private void displayView(int position) {
// update the main content by replacing fragments
android.app.Fragment fragment = null;
switch (position) {
case 0:
//fragment = new HomeFragment();
// Intent i=new Intent(MainActivity.this,MainActivity.class);
// startActivity(i);
break;
case 1:
//fragment = new FindPeopleFragment();
break;
case 2:
//fragment = new PhotosFragment();
break;
case 3:
//fragment = new CommunityFragment();
break;
case 4:
//fragment = new PagesFragment();
break;
case 5:
//fragment = new WhatsHotFragment();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
那么我应该在这段代码中改变什么,以便它可以打开一个活动而不是片段?有谁可以帮助我?
答案 0 :(得分:0)
在某些情况下,您需要更改函数以加载类Fragment,在其他情况下,需要更改类Activity
case 0:
activity = new MyActivity();
fragment = null;
break;
case 1:
fragment = new MyFragment();
activity = null;
break;
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.frame_container, (android.app.Fragment) fragment).commit();
setTitle(menutitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}else {
if(activity != null) {
Intent i1 = new Intent(MainActivity.this, activity.getClass());
i1.putExtra(EXTRA_MESSAGE, position);
startActivity(i1);
setTitle(menutitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
}
答案 1 :(得分:0)
请你从Logcat发布错误:
我首先要检查的是:
这是您正确启动活动的方式。
Intent intent = new Intent(mActivity, class1); // class1 The class to open
startActivity(intent);