如何从Activity开始Fragment? [英] How to start Fragment from Activity?
本文介绍了如何从Activity开始Fragment?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个片段:
ProductsFragments extends Fragment
和一个活动
AdminMenuActivity extends ActionBarActivity
我想从AdminMenuActivity调用ProductsFragments.我使用了2个选项:
I want to call ProductsFragments from AdminMenuActivity. I have used 2 options:
1)
FragmentManager fm = getSupportFragmentManager();
for(int i = 0; i < fm.getBackStackEntryCount(); ++i) {
fm.popBackStack();
}
FragmentTransaction tx = getSupportFragmentManager().beginTransaction();
tx.replace(R.id.frame_layout, android.support.v4.app.Fragment.instantiate(AdminMenuActivity.this, fragments[1]));
tx.commit();
2)
Intent intent1 = new Intent(AdminMenuActivity.this, ProductsActivity.class);
startActivity(intent1);
两者均失败.我不想使用FragmentActivity扩展ProductsFragments,因为它并没有给我SupportedActionBar v7
Both are failed. I don't want to extend ProductsFragments with FragmentActivity because it doesn't give me supportedActionBar v7
那我怎么打电话给Fragment
?
推荐答案
这是从活动内部调用片段的方式
Here is how you call a fragment from inside an Activity
Fragment fr = new FirstFragment();
fr.setArguments(args);
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
fragmentTransaction.replace(R.id.fragment_place, fr);
fragmentTransaction.commit();
假设您具有fragment_place表示以下内容:
Assuming you have fragment_place represents the following:
<fragment android:name="com.company.appName.fragments.FirstFragment"
android:id="@+id/fragment_place"
android:layout_width="match_parent"
android:layout_height="match_parent" />
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