fragment 应用demo下载

package com.along; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.app.FragmentTransaction; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class FragmentActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.fragment_hide_show); FragmentManager fm = getFragmentManager(); // 下面的两行代码是在Activity中按钮添加监听事件,控制Fragment的显示和隐藏 addShowHideListener(R.id.frag1hide, fm.findFragmentById(R.id.fragment1)); addShowHideListener(R.id.frag2hide, fm.findFragmentById(R.id.fragment2)); } void addShowHideListener(int buttonId, final Fragment fragment) { // 获取activity中的button final Button button = (Button) findViewById(buttonId); button.setOnClickListener(new OnClickListener() { public void onClick(View v) { FragmentTransaction ft = getFragmentManager() .beginTransaction(); /* 为Fragment设置淡入淡出效果，Android开发网提示这里这两个动画资源是android内部资源无需我们手动定义。 */ ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out); if (fragment.isHidden()) { ft.show(fragment); button.setText("隐藏"); } else { ft.hide(fragment); button.setText("显示"); } ft.commit(); } }); } }