1 package cativity.cyq.layoutanimation;
2
3 import android.support.v7.app.ActionBarActivity;
4 import android.support.v4.app.Fragment;
5 import android.os.Bundle;
6 import android.view.LayoutInflater;
7 import android.view.Menu;
8 import android.view.MenuItem;
9 import android.view.View;
10 import android.view.ViewGroup;
11 import android.view.animation.LayoutAnimationController;
12 import android.view.animation.ScaleAnimation;
13 import android.widget.LinearLayout;
14
15
16 public class MainActivity extends ActionBarActivity {
17
18 @Override
19 protected void onCreate(Bundle savedInstanceState) {
20 super.onCreate(savedInstanceState);
21 setContentView(R.layout.activity_main);
22 if (savedInstanceState == null) {
23 getSupportFragmentManager().beginTransaction().addToBackStack(null)
24 .add(R.id.container, new PlaceholderFragment())
25 .commit();
26 }
27 }
28
29 public static class PlaceholderFragment extends Fragment {
30
31 public PlaceholderFragment() {
32 }
33
34 @Override
35 public View onCreateView(LayoutInflater inflater, ViewGroup container,
36 Bundle savedInstanceState) {
37 LinearLayout rootView = (LinearLayout) inflater.inflate(R.layout.fragment_main, container, false);
38 ScaleAnimation sAnimatio = new ScaleAnimation(0, 1, 0, 1);
39 sAnimatio.setDuration(200);
40 //使用布局动画管理器
41
42 LayoutAnimationController layoutAniController = new LayoutAnimationController(sAnimatio, 0.9f);
43 rootView.setLayoutAnimation(layoutAniController);
44
45 rootView.findViewById(R.id.skipto).setOnClickListener(new View.OnClickListener() {
46 @Override
47 public void onClick(View v) {
48 getFragmentManager().beginTransaction().addToBackStack(null)
49 .replace(R.id.container, new MyFragment())
50 .commit();
51
52
53 }
54 });
55
56 return rootView;
57 }
58 }
59
60 @Override
61 public boolean onCreateOptionsMenu(Menu menu) {
62 getMenuInflater().inflate(R.menu.menu_main, menu);
63 return true;
64 }
65
66 @Override
67 public boolean onOptionsItemSelected(MenuItem item) {
68 int id = item.getItemId();
69 if (id == R.id.action_settings) {
70 return true;
71 }
72
73 return super.onOptionsItemSelected(item);
74 }
75
76
77 }
