本篇博客给大家分享一个效果比较好的侧滑菜单的Demo,实现点击左边菜单切换Fragment。
效果如下:
主Activity代码:
package com.infzm.slidingmenu.demo; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.widget.ImageView; import android.widget.TextView; import com.infzm.slidingmenu.demo.fragment.LeftFragment; import com.infzm.slidingmenu.demo.fragment.TodayFragment; import com.jeremyfeinstein.slidingmenu.lib.SlidingMenu; import com.jeremyfeinstein.slidingmenu.lib.app.SlidingFragmentActivity; public class MainActivity extends SlidingFragmentActivity implements onClickListener { private ImageView topButton; private Fragment mContent; private TextView topTextView; @Override public void onCreate(Bundle savedInstanceState) { requestWindowFeature(Window.FEATURE_NO_TITLE); // 无标题 super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initSlidingMenu(savedInstanceState); topButton = (ImageView) findViewById(R.id.topButton); topButton.setonClickListener(this); topTextView = (TextView) findViewById(R.id.topTv); } private void initSlidingMenu(Bundle savedInstanceState) { // 如果保存的状态不为空则得到之前保存的Fragment,否则实例化MyFragment if (savedInstanceState != null) { mContent = getSupportFragmentManager().getFragment( savedInstanceState, "mContent"); } if (mContent == null) { mContent = new TodayFragment(); } // 设置左侧滑动菜单 setBehindContentView(R.layout.menu_frame_left); getSupportFragmentManager().beginTransaction() .replace(R.id.menu_frame, new LeftFragment()).commit(); // 实例化滑动菜单对象 SlidingMenu sm = getSlidingMenu(); // 设置可以左右滑动的菜单 sm.setMode(SlidingMenu.LEFT); // 设置滑动阴影的宽度 sm.setShadowWidthRes(R.dimen.shadow_width); // 设置滑动菜单阴影的图像资源 sm.setShadowDrawable(null); // 设置滑动菜单视图的宽度 sm.setBehindOffsetRes(R.dimen.slidingmenu_offset); // 设置渐入渐出效果的值 sm.setFadeDegree(0.35f); // 设置触摸屏幕的模式,这里设置为全屏 sm.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN); // 设置下方视图的在滚动时的缩放比例 sm.setBehindScrollScale(0.0f); } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); getSupportFragmentManager().putFragment(outState, "mContent", mContent); } public void switchConent(Fragment fragment, String title) { mContent = fragment; getSupportFragmentManager().beginTransaction() .replace(R.id.content_frame, fragment).commit(); getSlidingMenu().showContent(); topTextView.setText(title); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.topButton: toggle(); break; default: break; } } }
侧边栏菜单Fragment
package com.infzm.slidingmenu.demo.fragment; import android.app.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import com.infzm.slidingmenu.demo.MainActivity; import com.infzm.slidingmenu.demo.R; public class LeftFragment extends Fragment implements OnClickListener{ private View todayView; private View lastListView; private View discussView; private View favoritesView; private View commentsView; private View settingsView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public void onAttach(Activity activity) { super.onAttach(activity); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.layout_menu, null); findViews(view); return view; } public void findViews(View view) { todayView = view.findViewById(R.id.tvToday); lastListView = view.findViewById(R.id.tvLastlist); discussView = view.findViewById(R.id.tvDiscussMeeting); favoritesView = view.findViewById(R.id.tvMyFavorites); commentsView = view.findViewById(R.id.tvMyComments); settingsView = view.findViewById(R.id.tvMySettings); todayView.setonClickListener(this); lastListView.setonClickListener(this); discussView.setonClickListener(this); favoritesView.setonClickListener(this); commentsView.setonClickListener(this); settingsView.setonClickListener(this); } @Override public void onDestroyView() { super.onDestroyView(); } @Override public void onDestroy() { super.onDestroy(); } @Override public void onClick(View v) { Fragment newContent = null; String title = null; switch (v.getId()) { case R.id.tvToday: // 今日 newContent = new TodayFragment(); title = getString(R.string.today); break; case R.id.tvLastlist:// 往期列表 newContent = new LastListFragment(); title = getString(R.string.lastList); break; case R.id.tvDiscussMeeting: // 讨论集会 newContent = new DiscussFragment(); title = getString(R.string.discussMeetting); break; case R.id.tvMyFavorites: // 我的收藏 newContent = new MyFavoritesFragment(); title = getString(R.string.myFavorities); break; case R.id.tvMyComments: // 我的评论 newContent = new MyCommentsFragment(); title = getString(R.string.myComments); break; case R.id.tvMySettings: // 设置 newContent = new MySettingsFragment(); title = getString(R.string.settings); break; default: break; } if (newContent != null) { switchFragment(newContent, title); } } private void switchFragment(Fragment fragment, String title) { if (getActivity() == null) { return; } if (getActivity() instanceof MainActivity) { MainActivity fca = (MainActivity) getActivity(); fca.switchConent(fragment, title); } } }
上面是核心代码,引入SlidingMenu开源库。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持考高分网。