blocks|key|5674747|text|你几乎说对了，唯一缺少的是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5674748|1)在首选项中添加用户选择，以便在用户选择接受的情况下，您不会反复显示对话框。|5674749|2)具有If条件，其中如果用户尚未接受条款和条件，则基于偏好，再次显示对话框或调用触发导航、API等的所需方法。此外，第一次是用户从警报对话的回调中选择肯定选项调用所需方法|5674750|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

You have it almost right, only thing that's missing is: 
1) Adding the user selection in a preference so that in case the user selection accept you won't show the dialog over and over again. 
2) having an If condition in which based on the preference if the user has not accepted the terms and conditions show the dialog again or call the required method which trigger navigation, API etc. Also for the first time is the user selects a positive option call the required methods from the callback of the alert dialog

blocks|key|1546964|text|您可以在onCreate中尝试此操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1546965|case+R.id.dialog_button_accept://+ACCEPT+
++++setContentView(R.layout.activity_main);
++++//+do+other+things
++++break;
case+R.id.dialog_button_cancel://+CANCEL+
++++finish();//+finish+this+activity
++++break;|code-block|syntax|javascript|1546966|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

you can try this in onCreate.

<pre><code>case R.id.dialog_button_accept:// ACCEPT 
 setContentView(R.layout.activity_main);
 // do other things
 break;
case R.id.dialog_button_cancel:// CANCEL 
 finish();// finish this activity
 break;
</code></pre>

blocks|key|5674793|text|我有一个单独的类，用于显示Eula以及生成和存储密钥。下面是类中正按钮和负按钮的代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5674794|+@Override
++++++++++++++++++++++++public+void+onClick(DialogInterface+dialogInterface,+int+i)+{
++++++++++++++++++++++++++++//+Mark+this+version+as+read.
++++++++++++++++++++++++++++SharedPreferences.Editor+editor+=+prefs.edit();
++++++++++++++++++++++++++++editor.putBoolean(eulaKey,+true);
++++++++++++++++++++++++++++editor.commit();
++++++++++++++++++++++++++++dialogInterface.dismiss();

++++++++++++++++++++++++}
++++++++++++++++++++})
++++++++++++++++++++.setNegativeButton(android.R.string.cancel,+new+Dialog.OnClickListener()+{

++++++++++++++++++++++++@Override
++++++++++++++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)+{
++++++++++++++++++++++++++++//+Close+the+activity+as+they+have+declined+the+EULA
++++++++++++++++++++++++++++mActivity.finish();
++++++++++++++++++++++++}

++++++++++++++++++++});|code-block|syntax|javascript|5674795|下面是activity+main+OnCreate方法的代码|5674796|super.onCreate(savedInstanceState);
++++++++++++++++new+SimpleEula(this).show();
++++++++++++++++setContentView(R.layout.activity_main);

++++++++++++++++//loading+the+default+fragment
++++++++++++++++loadFragment(new+HomeFragment());|5674797|总体目标是显示EULA并暂停onCreate的其余部分，直到在EULA显示期间做出决定。那么使用发布的解决方案，有没有一种方法可以恢复并保存肯定的按钮按下，并将其传递回OnCreate，然后使用上面发布的解决方案中的switch语句？|5674798|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I have a seperate class for displaying the Eula and generating and storing the key. Here is the code for the positive and negative button in the class:

<pre><code> @Override
 public void onClick(DialogInterface dialogInterface, int i) {
 // Mark this version as read.
 SharedPreferences.Editor editor = prefs.edit();
 editor.putBoolean(eulaKey, true);
 editor.commit();
 dialogInterface.dismiss();

 }
 })
 .setNegativeButton(android.R.string.cancel, new Dialog.OnClickListener() {

 @Override
 public void onClick(DialogInterface dialog, int which) {
 // Close the activity as they have declined the EULA
 mActivity.finish();
 }

 });
</code></pre>

Here is the code for activity main OnCreate Method

<pre><code>super.onCreate(savedInstanceState);
 new SimpleEula(this).show();
 setContentView(R.layout.activity_main);

 //loading the default fragment
 loadFragment(new HomeFragment());
</code></pre>

The overall goal is to show the EULA and pause the rest of the onCreate until a decision has been made while the EULA is showing. So using solution posted, is there a way to recover and save the positive button press and pass it back over to OnCreate and then use the switch statement from the solution posted above?

blocks|key|5674827|text|所以我能够成功地编辑我所有的代码，当我去启动它时，它只是将黑色闪现为白色。不知道我到底做错了什么。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5674828|清单文件(认为可能存在问题)|5674829|<activity+android:name=".ShowEula">
++++++++++++<intent-filter>
++++++++++++++++<action+android:name="android.intent.action.MAIN"+/>

++++++++++++++++<category+android:name="android.intent.category.LAUNCHER"+/>
++++++++++++</intent-filter>
++++++++</activity>|code-block|syntax|javascript|5674830|ShowEula是我创建的新类。|5674831|ShowEula|5674832|package+com.app.restaurant.bowzers;

import+android.content.Intent;
import+android.os.Bundle;
import+android.support.v7.app.AppCompatActivity;

public+class+ShowEula+extends+AppCompatActivity+{
++++@Override
++++protected+void+onCreate(Bundle+savedInstanceState)+{
++++++++super.onCreate(savedInstanceState);
++++++++new+SimpleEula(this).show();
++++++++Intent+intent2=new+Intent(ShowEula.this,MainActivity.class);
++++++++startActivity(intent2);
+++++++}
}|5674833|就像以前一样|5674834|new+SimpleEula(this).show();|5674835|应该是加载支票和/或显示Eula。然后加载原始MainActivity的startActivity。|5674836|最终结果是一个闪烁的黑白屏幕应用程序。|5674837|不太确定我哪里出错了。|5674838|entityMap^0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|13|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|15|8|@]|9|@]|A|$G|H]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|17|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|18|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|19|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1A|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|Z|$]]

So I was able to successfuly edit all of my code and when I went to launch it, it just flases black to white. Not sure what I did wrong here.

Manifest File (Think maybe the issue is there)

<pre><code>&lt;activity android:name=".ShowEula"&gt;
 &lt;intent-filter&gt;
 &lt;action android:name="android.intent.action.MAIN" /&gt;

 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
 &lt;/intent-filter&gt;
 &lt;/activity&gt;
</code></pre>

ShowEula is the new class I created. 

ShowEula

<pre><code>package com.app.restaurant.bowzers;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;

public class ShowEula extends AppCompatActivity {
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 new SimpleEula(this).show();
 Intent intent2=new Intent(ShowEula.this,MainActivity.class);
 startActivity(intent2);
 }
}
</code></pre>

Just as before 

<pre><code>new SimpleEula(this).show();
</code></pre>

Is suppose to load the Check and Or Display Eula. Then the startActivity to load the original MainActivity.

The end results a flashing black to white screen app.

Not exactly sure where I went wrong.

blocks|key|1890209|text|SimpleEula.Java|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1890210|package+com.app.restaurant.bowzers;

import+android.app.Activity;
import+android.app.AlertDialog;
import+android.app.Dialog;
import+android.content.Context;
import+android.content.DialogInterface;
import+android.content.Intent;
import+android.content.SharedPreferences;
import+android.content.pm.PackageInfo;
import+android.content.pm.PackageManager;
import+android.preference.PreferenceManager;
import+android.view.View;

import+static+android.support.v4.content.ContextCompat.getSystemServiceName;
import+static+android.support.v4.content.ContextCompat.startActivity;


public+class+SimpleEula+{

++++private+String+EULA_PREFIX+=+"eula_";
++++private+Activity+mActivity;





++++public+SimpleEula(Activity+context)+{
++++++++mActivity+=+context;
++++}

++++private+PackageInfo+getPackageInfo()+{
++++++++PackageInfo+pi+=+null;
++++++++try+{
++++++++++++pi+=+mActivity.getPackageManager().getPackageInfo(mActivity.getPackageName(),+PackageManager.GET_ACTIVITIES);
++++++++}+catch+(PackageManager.NameNotFoundException+e)+{
++++++++++++e.printStackTrace();
++++++++}
++++++++return+pi;
++++}

++++public+void+show()+{
++++++++PackageInfo+versionInfo+=+getPackageInfo();

++++++++//+the+eulaKey+changes+every+time+you+increment+the+version+number+in+the+AndroidManifest.xml
++++++++final+String+eulaKey+=+EULA_PREFIX+%2B+versionInfo.versionCode;
++++++++final+SharedPreferences+prefs+=+PreferenceManager.getDefaultSharedPreferences(mActivity);
++++++++boolean+hasBeenShown+=+prefs.getBoolean(eulaKey,+false);
++++++++if(hasBeenShown+==+false){

++++++++++++//+Show+the+Eula
++++++++++++String+title+=+mActivity.getString(R.string.app_name)+%2B+"+v"+%2B+versionInfo.versionName;

++++++++++++//Includes+the+updates+as+well+so+users+know+what+changed.
++++++++++++String+message+=+mActivity.getString(R.string.updates)+%2B+"\n\n"+%2B+mActivity.getString(R.string.eula);

++++++++++++AlertDialog.Builder+builder+=+new+AlertDialog.Builder(mActivity)
++++++++++++++++++++.setTitle(title)
++++++++++++++++++++.setMessage(message)
++++++++++++++++++++.setCancelable(false)
++++++++++++++++++++.setPositiveButton(android.R.string.ok,+new+Dialog.OnClickListener()+{

++++++++++++++++++++++++@Override
++++++++++++++++++++++++public+void+onClick(DialogInterface+dialogInterface,+int+i)+{
++++++++++++++++++++++++++++//+Mark+this+version+as+read.
++++++++++++++++++++++++++++SharedPreferences.Editor+editor+=+prefs.edit();
++++++++++++++++++++++++++++editor.putBoolean(eulaKey,+true);
++++++++++++++++++++++++++++editor.commit();
++++++++++++++++++++++++++++dialogInterface.dismiss();

+++++++++++++++++++++++++++++++++++++++++++++++}
++++++++++++++++++++})
++++++++++++++++++++.setNegativeButton(android.R.string.cancel,+new+Dialog.OnClickListener()+{

++++++++++++++++++++++++@Override
++++++++++++++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)+{
++++++++++++++++++++++++++++//+Close+the+activity+as+they+have+declined+the+EULA
++++++++++++++++++++++++++++mActivity.finish();
++++++++++++++++++++++++}

++++++++++++++++++++});
++++++++++++builder.create().show();
++++++++}
++++}

}|code-block|syntax|javascript|1890211|Manifest.xml|1890212|<?xml+version="1.0"+encoding="utf-8"?>
<manifest+xmlns:android="http://schemas.android.com/apk/res/android"
++++package="com.app.restaurant.bowzers">

++++<uses-permission+android:name="android.permission.ACCESS_FINE_LOCATION"+/>
++++<uses-permission+android:name="android.permission.ACCESS_COARSE_LOCATION"+/>
++++<uses-permission+android:name="android.permission.WRITE_EXTERNAL_STORAGE"+/>

++++<uses-permission+android:name="android.permission.INTERNET"+/>
++++<uses-permission+android:name="android.permission.READ_EXTERNAL_STORAGE"+/>
++++<uses-permission+android:name="android.permission.CALL_PHONE"+/>

++++<application
++++++++android:allowBackup="true"
++++++++android:icon="@mipmap/ic_launcher"
++++++++android:label="@string/app_name"
++++++++android:roundIcon="@mipmap/ic_launcher_round"
++++++++android:supportsRtl="true"
++++++++android:theme="@style/AppTheme"
++++++++android:usesCleartextTraffic="true">
++++++++<activity+android:name=".MainActivity">
++++++++++++<intent-filter>
++++++++++++++++<action+android:name="android.intent.action.MAIN"+/>

++++++++++++++++<category+android:name="android.intent.category.LAUNCHER"+/>
++++++++++++</intent-filter>
++++++++</activity>


++++++++
++++++++<meta-data+android:name="com.google.android.geo.API_KEY"+android:value="API_KEY_FOR_MAPS"/>
++++</application>
++++<uses-feature
++++++++android:required="true"
++++++++android:glEsVersion="0x00020000"/>

</manifest>|1890213|MainActivity.Java+-+MainActivity+OnCreate方法|1890214|@Override
++++++++protected+void+onCreate(Bundle+savedInstanceState)+{

++++++++++++++++super.onCreate(savedInstanceState);
++++++++++++++++new+SimpleEula(this).show();


++++++++++++++++setContentView(R.layout.activity_main);

++++++++++++++++//loading+the+default+fragment
++++++++++++++++loadFragment(new+HomeFragment());
++++++++++++++++//getting+bottom+navigation+view+and+attaching+the+listener

++++++++++++++++BottomNavigationView+navigation+=+findViewById(R.id.navigation);
++++++++++++++++navigation.setOnNavigationItemSelectedListener(this);

++++++++}|1890215|总体目标是停止一切加载，直到他们同意EULA。就代码而言，这真的不是什么大问题，但它确实困扰着我，EULA确实会加载，但在模式对话框后面，初始片段会加载，而不是没有任何底部导航的白色背景。|1890216|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

SimpleEula.Java

<pre><code>package com.app.restaurant.bowzers;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.preference.PreferenceManager;
import android.view.View;

import static android.support.v4.content.ContextCompat.getSystemServiceName;
import static android.support.v4.content.ContextCompat.startActivity;


public class SimpleEula {

 private String EULA_PREFIX = "eula_";
 private Activity mActivity;





 public SimpleEula(Activity context) {
 mActivity = context;
 }

 private PackageInfo getPackageInfo() {
 PackageInfo pi = null;
 try {
 pi = mActivity.getPackageManager().getPackageInfo(mActivity.getPackageName(), PackageManager.GET_ACTIVITIES);
 } catch (PackageManager.NameNotFoundException e) {
 e.printStackTrace();
 }
 return pi;
 }

 public void show() {
 PackageInfo versionInfo = getPackageInfo();

 // the eulaKey changes every time you increment the version number in the AndroidManifest.xml
 final String eulaKey = EULA_PREFIX + versionInfo.versionCode;
 final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mActivity);
 boolean hasBeenShown = prefs.getBoolean(eulaKey, false);
 if(hasBeenShown == false){

 // Show the Eula
 String title = mActivity.getString(R.string.app_name) + " v" + versionInfo.versionName;

 //Includes the updates as well so users know what changed.
 String message = mActivity.getString(R.string.updates) + "\n\n" + mActivity.getString(R.string.eula);

 AlertDialog.Builder builder = new AlertDialog.Builder(mActivity)
 .setTitle(title)
 .setMessage(message)
 .setCancelable(false)
 .setPositiveButton(android.R.string.ok, new Dialog.OnClickListener() {

 @Override
 public void onClick(DialogInterface dialogInterface, int i) {
 // Mark this version as read.
 SharedPreferences.Editor editor = prefs.edit();
 editor.putBoolean(eulaKey, true);
 editor.commit();
 dialogInterface.dismiss();

 }
 })
 .setNegativeButton(android.R.string.cancel, new Dialog.OnClickListener() {

 @Override
 public void onClick(DialogInterface dialog, int which) {
 // Close the activity as they have declined the EULA
 mActivity.finish();
 }

 });
 builder.create().show();
 }
 }

}
</code></pre>

Manifest.xml

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.app.restaurant.bowzers"&gt;

 &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt;
 &lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /&gt;
 &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt;

 &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
 &lt;uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /&gt;
 &lt;uses-permission android:name="android.permission.CALL_PHONE" /&gt;

 &lt;application
 android:allowBackup="true"
 android:icon="@mipmap/ic_launcher"
 android:label="@string/app_name"
 android:roundIcon="@mipmap/ic_launcher_round"
 android:supportsRtl="true"
 android:theme="@style/AppTheme"
 android:usesCleartextTraffic="true"&gt;
 &lt;activity android:name=".MainActivity"&gt;
 &lt;intent-filter&gt;
 &lt;action android:name="android.intent.action.MAIN" /&gt;

 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
 &lt;/intent-filter&gt;
 &lt;/activity&gt;


 &lt;!--Maps Api Key--&gt;
 &lt;meta-data android:name="com.google.android.geo.API_KEY" android:value="API_KEY_FOR_MAPS"/&gt;
 &lt;/application&gt;
 &lt;uses-feature
 android:required="true"
 android:glEsVersion="0x00020000"/&gt;

&lt;/manifest&gt;
</code></pre>

MainActivity.Java - MainActivity OnCreate Method

<pre><code>@Override
 protected void onCreate(Bundle savedInstanceState) {

 super.onCreate(savedInstanceState);
 new SimpleEula(this).show();


 setContentView(R.layout.activity_main);

 //loading the default fragment
 loadFragment(new HomeFragment());
 //getting bottom navigation view and attaching the listener

 BottomNavigationView navigation = findViewById(R.id.navigation);
 navigation.setOnNavigationItemSelectedListener(this);

 }
</code></pre>

The overall goal was to stop everything from loading until they agree to the EULA. As the code stands, which is really not a big issue, but it does bother me, the EULA does load, but behind the MODAL Dialogue Box the inital fragment loads, instead of it being a white background with nothing and no bottom navigation.

I am almost done with release 1 of my app and am doing finishing touches to it. However I am stuck with a Dialog Box for the user to accept the EULA before they can continue using the app.

I put the alertdialogue call in OnCreate method. This works beautifully, when the app opens up for the first time or on an update they are shown a modal alert box with an accept of decline button. If they hit decline, the app closes, if they hit accept, the dialog gets dismissed and the already initial activity is shown.

What I am looking to do is have teh alert box show (in oncreate) and then not load anything else until either the ACCEPT or CANCEL button is pressed.

do I use stop() and resume()? I'm lost. 

Shawn Mulligan

Can you hault OnCreate until button from alert dialogue is pressed?

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。

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我几乎完成了我的应用程序的第1版，并正在对其进行收尾工作。然而，在用户可以继续使用应用程序之前，我坚持使用一个对话框来接受EULA。我将alertdialogue调用放在OnCreate方法中。这非常好用，当应用程序第一次打开或更新时，他们会看到一个带有接受拒绝按钮的模式警告框。如果他们点击拒绝，应用程序将关闭，如果他...

问你能在按下警告对话框中的按钮之前一直使用OnCreate吗？
EN

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问你能在按下警告对话框中的按钮之前一直使用OnCreate吗？EN