android dialog和popupwindow单件封装显示

只需要关注单件模式的用法，最常见的是view的单件封装显示，下面举例dialog和popupwindow使用单件模式的用法

一：popupwindow单件模式

import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.graphics.drawable.BitmapDrawable; import android.net.Uri; import android.os.Handler; import android.os.Message; import android.util.DebugUtils; import android.view.Gravity; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.WindowManager; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.EditText; import android.widget.ImageButton; import android.widget.LinearLayout; import android.widget.PopupWindow; import android.widget.RelativeLayout; import android.widget.RelativeLayout.LayoutParams; import android.widget.TextView; import android.widget.Toast; import com.zs108.util.ConstVar; import com.zs108.util.Debugs; import com.zs108.util.Tool; import java.util.Map; public class NoticeWindow implements OnClickListener { private static final String TAG = NoticeWindow.class.getName(); private Activity mContext; private PopupWindow mWindow; //不能粘贴，modify 20170419 private RelativeLayout rootView; public static NoticeWindow instance = null; private WebView wv; private RelativeLayout notice; private LinearLayout wait; private ImageButton close; private int ext; private ImageButton upToTop; private NoticeWindow(){ Debugs.debug("NoticeWindow"); } public static NoticeWindow getInstance(){ if(instance == null){ instance = new NoticeWindow(); } return instance; } private void initParams(Activity activity){ try { this.mContext = activity; } catch (Exception e) { e.printStackTrace(); } } public void showNoticeView(Activity context, int uexit){ if (context == null){ return ; } ext = uexit; initParams(context); showWindowView(); } private void showWindowView(){ try { if(mWindow == null){ Debugs.debug("初始化窗口"); initPopupWindow(); } mWindow.showAtLocation(rootView, Gravity.CENTER, 0, 0); } catch (Exception e) { e.printStackTrace(); } } public void release(){ if(mContext != null){ mContext = null; } if(mWindow != null){ mWindow = null; } if(null != instance){ instance = null; } } private void initPopupWindow(){ try { rootView = (RelativeLayout) LayoutInflater.from(mContext).inflate(R.layout.notice, null); rootView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { } }); initControl(); getNotice(); mWindow = new PopupWindow(rootView); mWindow.setFocusable(true); mWindow.setBackgroundDrawable(new BitmapDrawable()); mWindow.setOutsideTouchable(false); mWindow.setWindowLayoutMode(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); mWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); } catch (Exception e) { e.printStackTrace(); } } private void initControl(){ try{ notice = (RelativeLayout)rootView.findViewById(R.id.layout_notice); notice.setVisibility(View.GONE); wv = (WebView)rootView.findViewById(R.id.webNotice); wv.setBackgroundColor(0); wv.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE); wait = (LinearLayout)rootView.findViewById(R.id.layout_wait); close = (ImageButton)rootView.findViewById(R.id.img_close); close.setOnClickListener(this); upToTop = (ImageButton)rootView.findViewById(R.id.upToTop); upToTop.setOnClickListener(this); }catch(Exception e){ Debugs.debug("Err in LoaingActiviey initControl : " + e.toString()); } } private void getNotice(){ wv.setWebViewClient(new WebViewClient(){ @Override public void onPageFinished(WebView view,String url){ if(view.getId() == wv.getId()){ closeDialog(); } } @Override public void onReceivedError(WebView view,int errorCode,String description,String failingUrl){ Toast.makeText(mContext, "加载错误 " + description, Toast.LENGTH_LONG).show(); } }); wv.loadUrl(Const.URL); } private void closeDialog(){ wait.setVisibility(View.GONE); notice.setVisibility(View.VISIBLE); close.setVisibility(View.VISIBLE); } @Override public void onClick(View arg0){ int id = arg0.getId(); if(id == close.getId()){ hideWindow(); release(); }else if(id == upToTop.getId()){ wv.scrollTo(0, 0); } } public void hideWindow(){ if (mWindow != null) { mWindow.dismiss(); mWindow = null; } } }

二： Dialog单件模式

package com.zs108.GameDotaLoL.view; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.graphics.drawable.BitmapDrawable; import android.net.Uri; import android.os.Handler; import android.os.Message; import android.util.DebugUtils; import android.view.Gravity; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.view.WindowManager; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.EditText; import android.widget.ImageButton; import android.widget.LinearLayout; import android.widget.PopupWindow; import android.widget.RelativeLayout; import android.widget.RelativeLayout.LayoutParams; import android.widget.TextView; import android.widget.Toast; import com.huang.yzzjmj.R; import com.zs108.GameDotaLoL.activity.NoticeActivity; import com.zs108.GameDotaLoL.area.GameSDK; import com.zs108.GameDotaLoL.area.GameSDK_do; import com.zs108.GameDotaLoL.data.InfoControl; import com.zs108.Interface.GameAPIConst; import com.zs108.Interface.GameAPIFromCPP; import com.zs108.report.ReportInfo; import com.zs108.task.LoginTaskAction; import com.zs108.util.ConstVar; import com.zs108.util.Debugs; import com.zs108.util.Tool; import java.util.Map; public class NoticeWindow implements OnClickListener { private static final String TAG = NoticeWindow.class.getName(); private Activity mContext; private AlertDialog dlg; private Window dlgwindow; // private PopupWindow mWindow; //不能粘贴，modify 20170419 // private RelativeLayout rootView; public static NoticeWindow instance = null; private WebView wv; private RelativeLayout notice; private LinearLayout wait; private ImageButton close; private int ext; private ImageButton upToTop; private NoticeWindow(){ Debugs.debug("NoticeWindow"); } public static NoticeWindow getInstance(){ if(instance == null){ instance = new NoticeWindow(); } return instance; } private void initParams(Activity activity){ try { this.mContext = activity; } catch (Exception e) { e.printStackTrace(); } } public void showNoticeView(Activity context, int uexit){ if (context == null){ return ; } ext = uexit; initParams(context); showWindowView(); } private void showWindowView(){ try { if(dlg == null){ Debugs.debug("初始化窗口"); initPopupWindow(); }else{ dlg.show(); Debugs.debug("dialog 不为空，显示"); } // if(mWindow == null){ // Debugs.debug("初始化窗口"); // initPopupWindow(); // } // mWindow.showAtLocation(rootView, Gravity.CENTER, 0, 0); } catch (Exception e) { e.printStackTrace(); } } public void release(){ if(mContext != null){ mContext = null; } if(dlgwindow != null){ dlgwindow = null; } if(null != instance){ instance = null; } } private void initPopupWindow(){ try { dlg = new AlertDialog.Builder(mContext).create(); dlg.setCanceledOnTouchOutside(false); dlg.show(); dlgwindow = dlg.getWindow(); dlgwindow.setContentView(R.layout.notice); WindowManager.LayoutParams params = dlgwindow.getAttributes(); params.width = LayoutParams.MATCH_PARENT; params.height = LayoutParams.WRAP_CONTENT; params.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; params.flags = WindowManager.LayoutParams.FLAG_DIM_BEHIND; // params.dimAmount=0.7f;//设置对话框的透明程度背景(非布局的透明度) params.dimAmount=0.1f;//设置对话框的透明程度背景(非布局的透明度) dlgwindow.setAttributes(params); dlg.setOnKeyListener(new DialogInterface.OnKeyListener() { @Override public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) { if (keyCode==KeyEvent.KEYCODE_BACK){ Debugs.debug( "屏蔽返回键"); return true; }else{ return false; } } }); initControl(); getNotice(); // rootView = (RelativeLayout) LayoutInflater.from(mContext).inflate(R.layout.notice, null); // rootView.setOnClickListener(new OnClickListener() { // @Override // public void onClick(View v) { // } // }); // // initControl(); // getNotice(); // // mWindow = new PopupWindow(rootView); // mWindow.setFocusable(true); // mWindow.setBackgroundDrawable(new BitmapDrawable()); // mWindow.setOutsideTouchable(false); // mWindow.setWindowLayoutMode(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); // mWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); } catch (Exception e) { e.printStackTrace(); } } private void initControl(){ try{ notice = (RelativeLayout)dlgwindow.findViewById(R.id.layout_notice); notice.setVisibility(View.GONE); wv = (WebView)dlgwindow.findViewById(R.id.webNotice); wv.setBackgroundColor(0); wv.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE); wait = (LinearLayout)dlgwindow.findViewById(R.id.layout_wait); close = (ImageButton)dlgwindow.findViewById(R.id.img_close); close.setOnClickListener(this); // close.setVisibility(View.INVISIBLE); upToTop = (ImageButton)dlgwindow.findViewById(R.id.upToTop); upToTop.setOnClickListener(this); }catch(Exception e){ Debugs.debug("Err in LoaingActiviey initControl : " + e.toString()); } } private void getNotice(){ wv.setWebViewClient(new WebViewClient(){ @Override public void onPageFinished(WebView view,String url){ if(view.getId() == wv.getId()){ closeDialog(); } } @Override public void onReceivedError(WebView view,int errorCode,String description,String failingUrl){ Toast.makeText(mContext, "加载错误 " + description, Toast.LENGTH_LONG).show(); } }); wv.loadUrl(GameAPIConst.GAME_NOTICE_URL); } private void closeDialog(){ wait.setVisibility(View.GONE); notice.setVisibility(View.VISIBLE); close.setVisibility(View.VISIBLE); } @Override public void onClick(View arg0){ int id = arg0.getId(); if(id == close.getId()){ hideWindow(); release(); }else if(id == upToTop.getId()){ wv.scrollTo(0, 0); } } public void hideWindow(){ if (dlg != null) { dlg.dismiss(); dlg = null; } } } <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <LinearLayout android:id="@+id/linearLayout1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:background="@drawable/notice_bg" android:orientation="vertical" > <RelativeLayout android:id="@+id/layout_notice" android:layout_marginLeft="6dp" android:layout_marginRight="5dp" android:layout_marginTop="100dp" android:layout_gravity="center" android:layout_width="wrap_content" android:layout_height="fill_parent" > <WebView android:id="@+id/webNotice" android:layout_width="250dp" android:layout_height="290dp" android:scrollbarStyle="insideOverlay" android:layout_gravity="center" android:scrollbars="none" /> <ImageButton android:id="@+id/upToTop" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/webNotice" android:layout_alignRight="@+id/webNotice" android:layout_marginTop="-42dp" android:background="@drawable/up_to_top" /> </RelativeLayout> <LinearLayout android:id="@+id/layout_wait" android:layout_width="fill_parent" android:layout_height="290dp" android:layout_marginTop="100dp" android:orientation="vertical" > <ProgressBar android:id="@+id/dialog" style="?android:attr/progressBarStyleLarge" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="100dp" android:layout_gravity="center"/> <TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:textSize="20sp" android:textColor="@android:color/black" android:text="@string/getnotice" /> </LinearLayout> <ImageButton android:id="@+id/img_close" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:layout_marginTop="10dp" android:src="@drawable/close" android:background="@drawable/notice_close_button"/> </LinearLayout> </RelativeLayout>