Fragment----静态创建碎片

 1 import android.os.Bundle;
 2 import android.app.Activity;
 3 import android.app.Fragment;
 4 import android.app.FragmentManager;
 5 import android.view.Menu;
 6 import android.view.View;
 7 import android.widget.TextView;
 8 import android.widget.Toast;
 9
10 /**
11  *
12  * 有3个fragment，当点击按钮时，显示第二个fragment的textView的内容
13  * @author qq
14  *
15  */
16 public class MainActivity extends Activity {
17
18     private FragmentManager manager;//fragment管理器
19
20     @Override
21     protected void onCreate(Bundle savedInstanceState) {
22         super.onCreate(savedInstanceState);
23         setContentView(R.layout.activity_main);
24     }
25
26     public void showInfo(View v)
27     {
28         //获取碎片管理器----可以直接在 activity获取到
29         manager = getFragmentManager();
30
31         //使用碎片管理器得到需要的碎片对象
32         Fragment fragment = manager.findFragmentById(R.id.fragment1);
33
34         //得到碎片对象中的布局对象
35         View view = fragment.getView();
36
37         TextView textView = (TextView)view;
38
39         Toast.makeText(this, textView.getText(), Toast.LENGTH_SHORT).show();
40
41     }
42
43
44
45 }

MainActivity

 1 import com.example.gp08_day23_fragment2.R;
 2
 3 import android.app.Fragment;
 4 import android.os.Bundle;
 5 import android.view.LayoutInflater;
 6 import android.view.View;
 7 import android.view.ViewGroup;
 8
 9
10 public class TestFragment extends Fragment {
11
12
13     @Override
14     public View onCreateView(LayoutInflater inflater, ViewGroup container,
15             Bundle savedInstanceState) {
16
17         return  inflater.inflate(R.layout.fragment_layout, null);
18     }
19
20 }

TetsFragment