Fragment 自定义动画 

  1 /*
  2  * Copyright (C) 2010 The Android Open Source Project
  3  *
  4  * Licensed under the Apache License, Version 2.0 (the "License");
  5  * you may not use this file except in compliance with the License.
  6  * You may obtain a copy of the License at
  7  *
  8  *      http://www.apache.org/licenses/LICENSE-2.0
  9  *
 10  * Unless required by applicable law or agreed to in writing, software
 11  * distributed under the License is distributed on an "AS IS" BASIS,
 12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  * See the License for the specific language governing permissions and
 14  * limitations under the License.
 15  */
 16 
 17 package com.example.android.apis.app;
 18 
 19 import com.example.android.apis.R;
 20 
 21 import android.app.Activity;
 22 import android.app.Fragment;
 23 import android.app.FragmentTransaction;
 24 import android.os.Bundle;
 25 import android.view.LayoutInflater;
 26 import android.view.View;
 27 import android.view.ViewGroup;
 28 import android.view.View.OnClickListener;
 29 import android.widget.Button;
 30 import android.widget.TextView;
 31 
 32 /**
 33  * Demonstrates the use of custom animations in a FragmentTransaction when
 34  * pushing and popping a stack.
 35  */
 36 public class FragmentCustomAnimations extends Activity {
 37     int mStackLevel = 1;
 38 
 39     @Override
 40     protected void onCreate(Bundle savedInstanceState) {
 41         super.onCreate(savedInstanceState);
 42         setContentView(R.layout.fragment_stack);
 43 
 44         // Watch for button clicks.
 45         Button button = (Button)findViewById(R.id.new_fragment);
 46         button.setOnClickListener(new OnClickListener() {
 47             public void onClick(View v) {
 48                 addFragmentToStack();
 49             }
 50         });
 51 
 52         if (savedInstanceState == null) {
 53             // Do first time initialization -- add initial fragment.
 54             Fragment newFragment = CountingFragment.newInstance(mStackLevel);
 55             FragmentTransaction ft = getFragmentManager().beginTransaction();
 56             ft.add(R.id.simple_fragment, newFragment).commit();
 57         } else {
 58             mStackLevel = savedInstanceState.getInt("level");
 59         }
 60     }
 61 
 62     @Override
 63     public void onSaveInstanceState(Bundle outState) {
 64         super.onSaveInstanceState(outState);
 65         outState.putInt("level", mStackLevel);
 66     }
 67 
 68 
 69     void addFragmentToStack() {
 70         mStackLevel++;
 71 
 72         // Instantiate a new fragment.
 73         Fragment newFragment = CountingFragment.newInstance(mStackLevel);
 74 
 75         // Add the fragment to the activity, pushing this transaction
 76         // on to the back stack.
 77         FragmentTransaction ft = getFragmentManager().beginTransaction();
 78 　　　　　//此处设置动画效果       
　　　　　　　ft.setCustomAnimations(R.animator.fragment_slide_left_enter,
 79                 R.animator.fragment_slide_left_exit,
 80                 R.animator.fragment_slide_right_enter,
 81                 R.animator.fragment_slide_right_exit);
 82         ft.replace(R.id.simple_fragment, newFragment);
 83         ft.addToBackStack(null);
 84         ft.commit();
 85     }
 86 
 87 
 88 
 89     public static class CountingFragment extends Fragment {
 90         int mNum;
 91 
 92         /**
 93          * Create a new instance of CountingFragment, providing "num"
 94          * as an argument.
 95          */
 96         static CountingFragment newInstance(int num) {
 97             CountingFragment f = new CountingFragment();
 98 
 99             // Supply num input as an argument.
100             Bundle args = new Bundle();
101             args.putInt("num", num);
102             f.setArguments(args);
103 
104             return f;
105         }
106 
107         /**
108          * When creating, retrieve this instance's number from its arguments.
109          */
110         @Override
111         public void onCreate(Bundle savedInstanceState) {
112             super.onCreate(savedInstanceState);
113             mNum = getArguments() != null ? getArguments().getInt("num") : 1;
114         }
115 
116         /**
117          * The Fragment's UI is just a simple text view showing its
118          * instance number.
119          */
120         @Override
121         public View onCreateView(LayoutInflater inflater, ViewGroup container,
122                 Bundle savedInstanceState) {
123             View v = inflater.inflate(R.layout.hello_world, container, false);
124             View tv = v.findViewById(R.id.text);
125             ((TextView)tv).setText("Fragment #" + mNum);
126             tv.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.gallery_thumb));
127             return v;
128         }
129     }
130 
131 }

 

posted @ 2015-04-14 16:08  人生途中的积累  阅读(237)  评论(0)  编辑  收藏  举报