blocks|key|1149382|text|我想你可能是在正确的轨道上。对于#1，我有一个继承自dialog的类，它的布局只有一个包含TextView的ScrollView，然后是一个"dismiss“按钮。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1149383|关于#2，我在我的代码中所做的是为LastVersionNotesSeen存储一个设置，该设置包含...最后显示的笔记的版本号。:)如果该数字小于当前版本，我将显示最新版本说明，并将该值更新为当前版本。|1149384|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I think you're probably on the right track. For #1, I have a class that inherits off of dialog, and its layout simply has a ScrollView containing a TextView, and then a "dismiss" button after that.

Regarding #2, what I've done in mine is to store a setting for LastVersionNotesSeen that holds the ... well, the version number for the notes last displayed. :) If that number is less than the current version, I display the latest version notes and update the value to the current version.

blocks|key|1149396|text|以以下代码结束，第1部分。检查是否应该查看changelog|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1149397|++++++++//evaluate+if+we+will+show+changelog
++++try+{
++++++++//current+version
++++++++PackageInfo+packageInfo+=+getPackageManager().getPackageInfo(getPackageName(),+0);
++++++++int+versionCode+=+packageInfo.versionCode;+

++++++++//version+where+changelog+has+been+viewed
++++++++SharedPreferences+settings+=+getSharedPreferences(SAPNotePreferences.PREFS_NAME,+0);
++++++++int+viewedChangelogVersion+=+settings.getInt(SAPNotePreferences.KEY_CHANGELOG_VERSION_VIEWED,+0);

++++++++if(viewedChangelogVersion<versionCode)+{
++++++++++++Editor+editor=settings.edit();
++++++++++++editor.putInt(SAPNotePreferences.KEY_CHANGELOG_VERSION_VIEWED,+versionCode);
++++++++++++editor.commit();
++++++++++++displayChangeLog();
++++++++}
++++}+catch+(NameNotFoundException+e)+{
++++++++Log.w("Unable+to+get+version+code.+Will+not+show+changelog",+e);
++++}|code-block|syntax|javascript|1149398|第2部分显示changelog对话框|1149399|++++++++//load+some+kind+of+a+view
++++LayoutInflater+li+=+LayoutInflater.from(this);
++++View+view+=+li.inflate(R.layout.changelog_view,+null);

++++new+AlertDialog.Builder(this)
++++.setTitle("Changelog")
++++.setIcon(android.R.drawable.ic_menu_info_details)
++++.setView(view)
++++.setNegativeButton("Close",+new+DialogInterface.OnClickListener()+{
++++++public+void+onClick(DialogInterface+dialog,+int+whichButton)+{
++++++++++//
++++++}
++++}).show();|1149400|第3部分:具有changelog的布局|1149401|<?xml+version="1.0"+encoding="utf-8"?>
<LinearLayout+xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
++++<ScrollView+android:id="@%2Bid/aboutscrollview"+
++++++++++++android:orientation="vertical"
++++++++++++android:layout_width="fill_parent"+
++++++++++++android:layout_height="fill_parent">++++
++++++++++++<LinearLayout
++++++++++++++++android:orientation="vertical"
++++++++++++++++android:layout_width="fill_parent"
++++++++++++++++android:layout_height="fill_parent">
++++++++++++++++++++<TextView+android:text="Thanks+for+installing+..."
++++++++++++++++++++++++++++android:layout_width="fill_parent"+
++++++++++++++++++++++++++++android:layout_height="wrap_content"
++++++++++++++++++++++++++++android:paddingLeft="15px"++++++++++++++
++++++++++++++++++++++++++++android:layout_gravity="center_vertical"
++++++++++++++++++++++++++++android:textColor="#ffffff"+/>++
++++++++++++++++++++<TextView+android:text="Changes:+"
++++++++++++++++++++++++++++android:layout_width="fill_parent"+
++++++++++++++++++++++++++++android:layout_height="wrap_content"++++++++++++
++++++++++++++++++++++++++++android:paddingTop="15px"
++++++++++++++++++++++++++++android:paddingLeft="15px"
++++++++++++++++++++++++++++android:textStyle="bold"
++++++++++++++++++++++++++++android:textColor="#ffffff"+/>
++++++++++++++++++++<TextView+android:text="v2.0:changes..."
++++++++++++++++++++++++++++android:layout_width="fill_parent"+
++++++++++++++++++++++++++++android:layout_height="wrap_content"
++++++++++++++++++++++++++++android:paddingLeft="15px"++++++
++++++++++++++++++++++++++++android:paddingBottom="10px"++++++++++++
++++++++++++++++++++++++++++android:textColor="#ffffff"+/>
++++++++++++++++++++</LinearLayout>
++++++++++++</ScrollView>+++++++++++++++++++
</LinearLayout>|1149402|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Ended up with the following code
Part 1. Checking if the changelog should be viewed

<pre><code> //evaluate if we will show changelog
 try {
 //current version
 PackageInfo packageInfo = getPackageManager().getPackageInfo(getPackageName(), 0);
 int versionCode = packageInfo.versionCode; 

 //version where changelog has been viewed
 SharedPreferences settings = getSharedPreferences(SAPNotePreferences.PREFS_NAME, 0);
 int viewedChangelogVersion = settings.getInt(SAPNotePreferences.KEY_CHANGELOG_VERSION_VIEWED, 0);

 if(viewedChangelogVersion&lt;versionCode) {
 Editor editor=settings.edit();
 editor.putInt(SAPNotePreferences.KEY_CHANGELOG_VERSION_VIEWED, versionCode);
 editor.commit();
 displayChangeLog();
 }
 } catch (NameNotFoundException e) {
 Log.w("Unable to get version code. Will not show changelog", e);
 }
</code></pre>

Part 2 displaying the changelog dialog

<pre><code> //load some kind of a view
 LayoutInflater li = LayoutInflater.from(this);
 View view = li.inflate(R.layout.changelog_view, null);

 new AlertDialog.Builder(this)
 .setTitle("Changelog")
 .setIcon(android.R.drawable.ic_menu_info_details)
 .setView(view)
 .setNegativeButton("Close", new DialogInterface.OnClickListener() {
 public void onClick(DialogInterface dialog, int whichButton) {
 //
 }
 }).show();
</code></pre>

Part 3 the layout with the changelog

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"&gt;
 &lt;ScrollView android:id="@+id/aboutscrollview" 
 android:orientation="vertical"
 android:layout_width="fill_parent" 
 android:layout_height="fill_parent"&gt; 
 &lt;LinearLayout
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"&gt;
 &lt;TextView android:text="Thanks for installing ..."
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content"
 android:paddingLeft="15px" 
 android:layout_gravity="center_vertical"
 android:textColor="#ffffff" /&gt; 
 &lt;TextView android:text="Changes: "
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:paddingTop="15px"
 android:paddingLeft="15px"
 android:textStyle="bold"
 android:textColor="#ffffff" /&gt;
 &lt;TextView android:text="v2.0:changes..."
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content"
 android:paddingLeft="15px" 
 android:paddingBottom="10px" 
 android:textColor="#ffffff" /&gt;
 &lt;/LinearLayout&gt;
 &lt;/ScrollView&gt; 
&lt;/LinearLayout&gt;
</code></pre>

blocks|key|935059|text|这篇文章给出了一个示例源代码的答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|935060|http://www.londatiga.net/it/programming/android/how-to-show-whats-new-dialog-in-android-app/|offset|length|935061|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|2K|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

This post has an answer for that with example source code.

<a href="http://www.londatiga.net/it/programming/android/how-to-show-whats-new-dialog-in-android-app/" rel="nofollow">http://www.londatiga.net/it/programming/android/how-to-show-whats-new-dialog-in-android-app/</a>

blocks|key|1149492|text|为了显示更改日志，您还可以在对话框中本地化(即从res文件夹加载)+html：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1149493|++++++++++++AlertDialog.Builder+dialog+=+new+AlertDialog.Builder(this);
++++++++++++dialog.setTitle(getString(R.string.changelog_dialog_title));
++++++++++++dialog.setIcon(getResources().getDrawable(R.drawable.icon));

++++++++++++WebView+wv+=+new+WebView(getApplicationContext());
++++++++++++wv.loadData(getString(R.string.changelog_dialog_text),+"text/html",+"utf-8");
++++++++++++dialog.setView(wv);

++++++++++++dialog.setPositiveButton(getString(android.R.string.ok),+new+OnClickListener()+{
++++++++++++++++@Override
++++++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)+{
++++++++++++++++++++dialog.dismiss();
++++++++++++++++}
++++++++++++});

++++++++++++dialog.show();|code-block|syntax|javascript|1149494|神奇之处在于如何将html+'page‘编码到res/values/strings.xml+s.xml中：|1149495|<string+name="changelog_dialog_text">
<![CDATA[Version+1.3.0:
++++++++<ul>
+++++++++<li>Change+1</li>
+++++++++<li>Change+2</li>
++++++++</ul>+
]]>
</string>|1149496|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

For displaying the change log, you can also you localized (i.e. loaded from res folder) html in the dialog:

<pre><code> AlertDialog.Builder dialog = new AlertDialog.Builder(this);
 dialog.setTitle(getString(R.string.changelog_dialog_title));
 dialog.setIcon(getResources().getDrawable(R.drawable.icon));

 WebView wv = new WebView(getApplicationContext());
 wv.loadData(getString(R.string.changelog_dialog_text), "text/html", "utf-8");
 dialog.setView(wv);

 dialog.setPositiveButton(getString(android.R.string.ok), new OnClickListener() {
 @Override
 public void onClick(DialogInterface dialog, int which) {
 dialog.dismiss();
 }
 });

 dialog.show();
</code></pre>

The magic is how to code the html 'page' in res/values/strings.xml:

<pre><code>&lt;string name="changelog_dialog_text"&gt;
&lt;![CDATA[&lt;b&gt;Version 1.3.0:&lt;/b&gt;
 &lt;ul&gt;
 &lt;li&gt;Change 1&lt;/li&gt;
 &lt;li&gt;Change 2&lt;/li&gt;
 &lt;/ul&gt; 
]]&gt;
&lt;/string&gt;
</code></pre>

A lot of Android apps now display a modal with the most recent changelog after it is installed or updated.

How can I display a scrollable modal after the application is initially installed or updated?

Show modal after installation or update of app

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

现在，许多Android应用程序在安装或更新后都会显示带有最新更改日志的模式。在应用程序初始安装或更新后，如何显示可滚动模式？

问安装或更新应用程序后显示模式
EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问安装或更新应用程序后显示模式EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问安装或更新应用程序后显示模式
EN