其实原理就是WindowManager Dialog 和Animation的组合
这里分享一个Android的非常经典实用而且简单方便的第三方UI控件库:BottomView(小米的米UI也用到了这个)
实现功能:
可以在底部弹出的View里自定义布局;
可以自定义是否可以触摸外部消失;
可以自定义事件;
可以自定义外围背景是否透明;
可以自定义动画;
如果需要的话,可以强制为顶部View显示
用法:
1、下载BottomView.jar库文件,放到Android项目工程里的libs里
2、设置BottomView的Theme:
这2个Theme复制粘贴到你的项目的res/values/styles.xml里即可
- <!--半透明背景Theme-->
- <style name="BottomViewTheme_Defalut">
- <item name="android:windowFrame">@null</item>
- <item name="android:windowContentOverlay">@null</item>
- <item name="android:windowIsFloating">true</item>
- <item name="android:windowIsTranslucent">false</item>
- <item name="android:windowNoTitle">true</item>
- <item name="android:windowBackground">@color/white</item>
- <item name="android:backgroundDimEnabled">true</item>
- <item name="android:windowFullscreen">true</item>
- </style>
- <!--透明背景Theme-->
- <style name="BottomViewTheme_Transparent">
- <item name="android:windowFrame">@null</item>
- <item name="android:windowIsFloating">true</item>
- <!-- Transparent -->
- <item name="android:windowIsTranslucent">false</item>
- <item name="android:windowContentOverlay">@null</item>
- <item name="android:windowNoTitle">true</item>
- <item name="android:windowBackground">@color/white</item>
- <item name="android:backgroundDimEnabled">false</item>
- </style>
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另外如果提示
- <item name="android:windowBackground">@color/white</item>
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这里的white找不到的话,说明你项目res/values/color.xml没有新建或者没有white颜色这个值,只需在res/values/color.xml里添加
- <color name="white">#ffffff</color>
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这个白色值即可。
另外View的动画Theme可选,建议也复制进去,效果好一些,代码如下:
- <font color="#333333"><font face="Arial"> <style name="BottomToTopAnim" parent="android:Animation">
- <item name="@android:windowEnterAnimation">@anim/bottomview_anim_enter</item>
- <item name="@android:windowExitAnimation">@anim/bottomview_anim_exit</item>
- </style></font></font>
复制代码
res/anim/bottomview_anim_enter.xml
- <?xml version="1.0" encoding="utf-8"?>
- <set xmlns:android="http://schemas.android.com/apk/res/android" >
- <translate
- android:duration="500"
- android:fromYDelta="100%p" />
- </set>
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res/anim/bottomview_anim_exit.xml
- <?xml version="1.0" encoding="utf-8"?>
- <set xmlns:android="http://schemas.android.com/apk/res/android" >
- <translate
- android:duration="500"
- android:toYDelta="100%p" />
- </set>
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整体为:
2、部分核心使用代码:
- BottomView bottomView = new BottomView(this,
- R.style.BottomViewTheme_Defalut, R.layout.bottom_view);
- bottomView.setAnimation(R.style.BottomToTopAnim);//设置动画,可选
- bottomView.showBottomView(false);
复制代码
如果想获取这个View的话,调用.getView()方法即可。
效果图之一:(可随意发挥)
以下是源代码“:
package com.tandong.bottomview; import java.util.ArrayList; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.Button; import android.widget.ListView; import com.tandong.bottomview.adapter.BVAdapter; import com.tandong.bottomview.view.BottomView; /** * BottomView * * www.aplesson.com * * @author TanDong * */ public class MainActivity extends Activity implements OnClickListener { private Button btn_show; private ListView lv_menu_list; private ArrayList<String> menus; private BottomView bottomView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initData(); } private void initData() { menus = new ArrayList<String>(); menus.add(getResources().getString(R.string.menu_search)); menus.add(getResources().getString(R.string.menu_filemanage)); menus.add(getResources().getString(R.string.menu_downloadmanage)); menus.add(getResources().getString(R.string.menu_setting)); menus.add(getResources().getString(R.string.menu_about)); } private void initView() { btn_show = (Button) this.findViewById(R.id.btn_show); btn_show.setOnClickListener(this); } @Override public void onClick(View arg0) { switch (arg0.getId()) { case R.id.btn_show: bottomView = new BottomView(MainActivity.this, R.style.BottomViewTheme_Defalut, R.layout.bottom_view); bottomView.setAnimation(R.style.BottomToTopAnim); bottomView.showBottomView(false); lv_menu_list = (ListView) bottomView.getView().findViewById( R.id.lv_list); BVAdapter adapter = new BVAdapter(MainActivity.this, menus); lv_menu_list.setAdapter(adapter); lv_menu_list.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { bottomView.dismissBottomView(); } }); break; default: break; } } }
package com.tandong.bottomview.adapter; import java.util.ArrayList; import android.content.Context; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; import com.tandong.bottomview.R; /** * BottomView * * @author TanDong * */ public class BVAdapter extends BaseAdapter { private Context c; private ArrayList<String> alss; public BVAdapter(Context context, ArrayList<String> als) { this.c = context; this.alss = als; } @Override public int getCount() { // TODO Auto-generated method stub return alss.size(); } @Override public Object getItem(int arg0) { // TODO Auto-generated method stub return alss.get(arg0); } @Override public long getItemId(int arg0) { // TODO Auto-generated method stub return arg0; } @Override public View getView(int position, View convertView, ViewGroup arg2) { convertView = View.inflate(c, R.layout.item, null); TextView tv = (TextView) convertView.findViewById(R.id.tv_name); tv.setText(alss.get(position)); return convertView; } }
原理:
package com.tandong.bottomview.view; import android.app.Dialog; import android.content.Context; import android.view.Display; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.view.WindowManager.LayoutParams; public class BottomView { private View convertView; private Context context; private int theme; private Dialog bv; private int animationStyle; private boolean isTop = false; public BottomView(Context c, int theme, View convertView) { this.theme = theme; this.context = c; this.convertView = convertView; } public BottomView(Context c, int theme, int resource) { this.theme = theme; this.context = c; this.convertView = View.inflate(c, resource, null); } public void showBottomView(boolean CanceledOnTouchOutside) { if (this.theme == 0) this.bv = new Dialog(this.context); else this.bv = new Dialog(this.context, this.theme); this.bv.setCanceledOnTouchOutside(CanceledOnTouchOutside); this.bv.getWindow().requestFeature(1); this.bv.setContentView(this.convertView); Window wm = this.bv.getWindow(); WindowManager m = wm.getWindowManager(); Display d = m.getDefaultDisplay(); WindowManager.LayoutParams p = wm.getAttributes(); p.width = (d.getWidth() * 1); if (this.isTop) p.gravity = 48; else p.gravity = 80; if (this.animationStyle != 0) { wm.setWindowAnimations(this.animationStyle); } wm.setAttributes(p); this.bv.show(); } public void setTopIfNecessary() { this.isTop = true; } public void setAnimation(int animationStyle) { this.animationStyle = animationStyle; } public View getView() { return this.convertView; } public void dismissBottomView() { if (this.bv != null) this.bv.dismiss(); } }
【最讨厌那些不开源的】小米的米UI的BOTTOMVIEW源码完美反编译,布布扣,bubuko.com
时间: 2024-10-21 23:16:48