blocks|key|602803|text|我要说的是，不可能通过支持的方式完全阻止任何安卓应用程序的屏幕/视频捕获。但是，如果您只想阻止正常的android设备，安全标志是实质性的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|602804|1)安全标志确实阻止了正常的屏幕截图和视频捕获。|602805|此外，此链接的文档显示
窗口标志:将窗口内容视为安全，防止其出现在屏幕截图中或在非安全显示中被查看。上面的解决方案肯定会阻止应用程序捕获应用程序的视频。|blockquote|602806|见答案这里。|602807|2)有另一种捕获屏幕内容的方法。|602808|可以在根设备上或使用SDK捕捉另一个应用程序的屏幕，|602809|无论是阻止它还是收到它的通知，你都几乎没有机会阻止它。|602810|例如:有软件通过SDK将你的手机屏幕镜像到你的电脑上，所以屏幕捕捉软件可以在那里使用，你的应用程序是找不到的。|602811|602812|getWindow().setFlags(LayoutParams.FLAG_SECURE,+LayoutParams.FLAG_SECURE);|code-block|syntax|javascript|602813|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/view/WindowManager.LayoutParams.html#FLAG_SECURE|1|https://stackoverflow.com/a/30618030/5111155|2|https://stackoverflow.com/a/6764649/5111155^0|6|1S|0|0|O|0|0|B|C|1S|3|3|0|0|0|6|3|2|1|0|0|G|0|0|Q|0|0|R|0|0|1J|0|0|6|3|2|2|0|0^^$0|@$1|2|3|4|5|6|7|1C|8|@$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1F|8|@$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1I|8|@$9|1J|A|1K|B|C]|$9|1L|A|1M|B|C]]|D|@$9|1N|A|1O|1|1P]]|E|$]]|$1|K|3|L|5|6|7|1Q|8|@$9|1R|A|1S|B|C]]|D|@$9|1T|A|1U|1|1V]]|E|$]]|$1|M|3|N|5|6|7|1W|8|@$9|1X|A|1Y|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1Z|8|@$9|20|A|21|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|J|7|22|8|@$9|23|A|24|B|C]]|D|@]|E|$]]|$1|S|3|T|5|6|7|25|8|@$9|26|A|27|B|C]]|D|@]|E|$]]|$1|U|3|L|5|6|7|28|8|@$9|29|A|2A|B|C]]|D|@$9|2B|A|2C|1|2D]]|E|$]]|$1|V|3|W|5|X|7|2E|8|@]|D|@]|E|$Y|Z]]|$1|10|3|-4|5|6|7|2F|8|@]|D|@]|E|$]]]|11|$12|$5|13|14|15|E|$16|17]]|18|$5|13|14|15|E|$16|19]]|1A|$5|13|14|15|E|$16|1B]]]]

I'm going to say that it is not possible to completely prevent screen/video capture of any android app through supported means. But if you only want to block it for normal android devices, the SECURE FLAG is substantial.

1) The secure flag does block both normal screenshot and video capture.

<blockquote>
 Also documentation at <a href="http://developer.android.com/reference/android/view/WindowManager.LayoutParams.html#FLAG_SECURE" rel="noreferrer">this link</a> says that
 
 <blockquote>
 Window flag: treat the content of the window as secure, preventing it from appearing in screenshots or from being viewed on non-secure displays.
 </blockquote>
 
 Above solution will surely prevent applications from capturing Video of your app
</blockquote>

See the answer <a href="https://stackoverflow.com/a/30618030/5111155">here</a>.

2) There are alternative means of capturing screen content.

It may be possible to capture the screen of another app on a rooted device or through using the SDK,

<blockquote>
 which both offer little to no chance of you either blocking it or receiving notification of it.
</blockquote>

For example: there exists software to mirror your phone screen to your computer via the SDK and so screen capture software could be used there, undiscoverable by your app.

See the answer <a href="https://stackoverflow.com/a/6764649/5111155">here</a>.

<pre><code>getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
</code></pre>

blocks|key|1899076|text|只需添加这一行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1899077|getWindow().setFlags(LayoutParams.FLAG_SECURE,+LayoutParams.FLAG_SECURE);|code-block|syntax|javascript|1899078|在setContentView()方法之前。|offset|length|style|CODE|1899079|entityMap^0|0|0|1|G|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]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Just add this line:

<pre><code>getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
</code></pre>

Before your <code>setContentView()</code> method.

blocks|key|602837|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|602838|getWindow().setFlags(LayoutParams.FLAG_SECURE,+LayoutParams.FLAG_SECURE);|code-block|syntax|javascript|602839|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|$]]

Try this:

<pre><code>getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
</code></pre>

blocks|key|602877|text|您可以将您的应用程序作为设备/配置文件所有者，并调用setScreenCaptureDisabled()。在文档中，该api执行以下操作：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|602878|在API级别21中添加的公共空setScreenCaptureDisabled+(ComponentName管理，布尔禁用)
由设备/配置文件所有者调用，以设置是否禁用屏幕截图。禁用屏幕截图还可以防止在没有安全视频输出的显示设备上显示内容。有关安全表面和安全显示的详细信息，请参阅FLAG_SECURE。
调用设备管理必须是设备或配置文件所有者。如果不是，则会引发安全异常。与此请求关联的DeviceAdminReceiver参数管理。无论是否禁用屏幕截图，都禁用。|blockquote|602879|或者，您可以成为移动设备管理合作伙伴，app.OEMs为其MDM合作伙伴应用程序提供额外的api来控制device.For示例，三星提供device.For来控制设备上的屏幕记录给他们的MDM合作伙伴。|602880|目前，这是强制执行屏幕捕获限制的唯一方法。|602881|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/app/admin/DevicePolicyManager.html#setScreenCaptureDisabled%2528android.content.ComponentName,%2520boolean%2529|1|https://www.samsungknox.com/en/partners/mobile-device-managers^0|Q|Q|1I|2|0|0|0|8|6|1|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$]]|$1|I|3|J|5|6|7|13|8|@]|D|@$9|14|A|15|1|16]]|E|$]]|$1|K|3|L|5|6|7|17|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]|U|$5|P|Q|R|E|$S|V]]]]

You can make your app as device/profile owner and call <code>setScreenCaptureDisabled()</code>. From the <a href="http://developer.android.com/reference/android/app/admin/DevicePolicyManager.html#setScreenCaptureDisabled%28android.content.ComponentName,%20boolean%29" rel="noreferrer">docs</a>, this api does the following:

<blockquote>
 public void setScreenCaptureDisabled (ComponentName admin, boolean disabled)
 Added in API level 21
 
 Called by a device/profile owner to set whether the screen capture is
 disabled. Disabling screen capture also prevents the content from
 being shown on display devices that do not have a secure video output.
 See FLAG_SECURE for more details about secure surfaces and secure
 displays.
 
 The calling device admin must be a device or profile owner. If it is
 not, a security exception will be thrown. Parameters admin Which
 DeviceAdminReceiver this request is associated with. disabled Whether
 screen capture is disabled or not.
</blockquote>

Alternatively you can become an <a href="https://www.samsungknox.com/en/partners/mobile-device-managers" rel="noreferrer">MDM(Mobile Device Management)</a> partner app.OEMs provides additional APIs to their MDM partner apps to control the device.For example samsung provides api to control screen recording on the device to their MDM partners.

Currently this is the only way you can enforce screen capture restrictions.

blocks|key|1899156|text|根据这个官方指南，您可以将WindowManager.LayoutParams.FLAG_SECURE添加到您的窗口布局中，它将不允许截图。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1899157|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/view/WindowManager.LayoutParams.html#FLAG_SECURE.^0|D|12|4|4|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

According to this <a href="http://developer.android.com/reference/android/view/WindowManager.LayoutParams.html#FLAG_SECURE." rel="nofollow">official guide</a>, you can add <code>WindowManager.LayoutParams.FLAG_SECURE</code> to your window layout and it will disallow screenshots.

blocks|key|602907|text|若要禁用屏幕捕获，请执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|602908|在onCreate()方法中添加以下代码行：|offset|length|style|CODE|602909|getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,
+++++++++++++++++++++++++++WindowManager.LayoutParams.FLAG_SECURE);|code-block|syntax|javascript|602910|要启用屏幕截图：|602911|查找LayoutParams.FLAG_SECURE并删除代码行。|602912|entityMap^0|0|1|A|0|0|0|2|O|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@$D|U|E|V|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|W|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|Y|8|@$D|Z|E|10|F|G]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|R|$]]

To disable Screen Capture:

Add following line of code in <code>onCreate()</code> method:

<pre><code>getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,
 WindowManager.LayoutParams.FLAG_SECURE);
</code></pre>

To enable Screen Capture:

Find for <code>LayoutParams.FLAG_SECURE</code> and remove the line of code.

blocks|key|2418497|text|关于照片截图，FLAG_SECURE不工作根设备。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2418498|但是，如果您监视屏幕截图文件，您可以阻止获得原始文件。|2418499|试试这个一。|offset|length|2418500|使用android远程服务监视屏幕截图(文件监视器)|ordered-list-item|2418501|删除原来的截图图像。|2418502|传递位图实例以便您可以修改。|2418503|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/SinsangMarket/ASS^0|0|0|4|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@$F|Z|G|10|1|11]]|A|$]]|$1|H|3|I|5|J|7|12|8|@]|9|@]|A|$]]|$1|K|3|L|5|J|7|13|8|@]|9|@]|A|$]]|$1|M|3|N|5|J|7|14|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

about photo screenshot,
FLAG_SECURE not working rooted device. 
but if you monitor the screenshot file, you can prevent from getting original file.

try this <a href="https://github.com/SinsangMarket/ASS" rel="nofollow noreferrer">one</a>. 
1. monitoring screenshot(file monitor) with android remote service
 
2. delete original screenshot image.
 
3. deliver the bitmap instance so you can modify.

blocks|key|602966|text|对于Java，用户将这一行写在setContentView(R.layout.activity_main);之上|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|602967|getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,+WindowManager.LayoutParams.FLAG_SECURE);|code-block|syntax|javascript|602968|供kotlin用户使用|602969|window.setFlags(WindowManager.LayoutParams.FLAG_SECURE,+WindowManager.LayoutParams.FLAG_SECURE)|602970|entityMap^0|F|13|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

For Java users
write this line above your <code>setContentView(R.layout.activity_main);</code>

<pre><code>getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
</code></pre>

For kotlin users

<pre><code>window.setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE)
</code></pre>

blocks|key|2418563|text|我使用这个解决方案，允许在应用程序中手动快照，而不允许在应用程序进入后台时截取屏幕，希望它能有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2418564|@Override
protected+void+onResume()+{
++++getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SECURE);
++++super.onResume();
}

@Override
protected+void+onPause()+{
++++getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,+WindowManager.LayoutParams.FLAG_SECURE);
++++super.onPause();
}|code-block|syntax|javascript|2418565|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|$]]

I used this solution to allow manual snapshot in app while disallowing screen capture when the app goes in background, hope it helps.

<pre><code>@Override
protected void onResume() {
 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SECURE);
 super.onResume();
}

@Override
protected void onPause() {
 getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
 super.onPause();
}
</code></pre>

blocks|key|603006|text|我看到了所有仅适用于单个活动的答案，但我的解决方案将阻止所有活动的屏幕截图，而无需向活动添加任何代码。首先，创建一个自定义应用程序类，并在清单中添加一个registerActivityLifecycleCallbacks.Then寄存器。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|603007|MyApplicationContext.class|BOLD|603008|public+class+MyApplicationContext+extends+Application+{
++++private++Context+context;
++++public+void+onCreate()+{
++++++++super.onCreate();
++++++++context+=+getApplicationContext();
++++++++setupActivityListener();
++++}

++++private+void+setupActivityListener()+{
++++++++registerActivityLifecycleCallbacks(new+ActivityLifecycleCallbacks()+{
++++++++++++@Override
++++++++++++public+void+onActivityCreated(Activity+activity,+Bundle+savedInstanceState)+{
++++++++++++++++activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,+WindowManager.LayoutParams.FLAG_SECURE);++++++++++++}
++++++++++++@Override
++++++++++++public+void+onActivityStarted(Activity+activity)+{
++++++++++++}
++++++++++++@Override
++++++++++++public+void+onActivityResumed(Activity+activity)+{

++++++++++++}
++++++++++++@Override
++++++++++++public+void+onActivityPaused(Activity+activity)+{

++++++++++++}
++++++++++++@Override
++++++++++++public+void+onActivityStopped(Activity+activity)+{
++++++++++++}
++++++++++++@Override
++++++++++++public+void+onActivitySaveInstanceState(Activity+activity,+Bundle+outState)+{
++++++++++++}
++++++++++++@Override
++++++++++++public+void+onActivityDestroyed(Activity+activity)+{
++++++++++++}
++++++++});
++++}



}|code-block|syntax|javascript|603009|流形|603010|+<application
++++++++android:name=".MyApplicationContext"
++++++++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">|603011|entityMap^0|24|Y|0|0|Q|0|0|0|2|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@$9|X|A|Y|B|H]]|D|@]|E|$]]|$1|I|3|J|5|K|7|Z|8|@]|D|@]|E|$L|M]]|$1|N|3|O|5|6|7|10|8|@$9|11|A|12|B|H]]|D|@]|E|$]]|$1|P|3|Q|5|K|7|13|8|@]|D|@]|E|$L|M]]|$1|R|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|S|$]]

I saw all of the answers which are appropriate only for a single activity but there is my solution which will block screenshot for all of the activities without adding any code to the activity. First of all make an Custom Application class and add a <code>registerActivityLifecycleCallbacks</code>.Then register it in your manifest.

MyApplicationContext.class

<pre><code>public class MyApplicationContext extends Application {
 private Context context;
 public void onCreate() {
 super.onCreate();
 context = getApplicationContext();
 setupActivityListener();
 }

 private void setupActivityListener() {
 registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
 @Override
 public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
 activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE); }
 @Override
 public void onActivityStarted(Activity activity) {
 }
 @Override
 public void onActivityResumed(Activity activity) {

 }
 @Override
 public void onActivityPaused(Activity activity) {

 }
 @Override
 public void onActivityStopped(Activity activity) {
 }
 @Override
 public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
 }
 @Override
 public void onActivityDestroyed(Activity activity) {
 }
 });
 }



}
</code></pre>



Manifest


<pre><code> &lt;application
 android:name=".MyApplicationContext"
 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"&gt;
</code></pre>

blocks|key|1899345|text|在OnCreate事件(+MainActivity+)中添加这一行(Xamarin)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1899346|Window.SetFlags(WindowManagerFlags.Secure,+WindowManagerFlags.Secure);|code-block|syntax|javascript|1899347|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|$]]

Ad this line inside the OnCreate event on MainActivity (Xamarin)
<pre><code>Window.SetFlags(WindowManagerFlags.Secure, WindowManagerFlags.Secure);
</code></pre>

blocks|key|1899356|text|public+class+InShotApp+extends+Application+{
++++
++++++++@Override
++++++++public+void+onCreate()+{
++++++++++++super.onCreate();
++++++++++++registerActivityLifecycle();
++++++++}
++++
++++++++private+void+registerActivityLifecycle()+{
++++
++++++++++++registerActivityLifecycleCallbacks(new+ActivityLifecycleCallbacks()+{
++++++++++++++++@Override
++++++++++++++++public+void+onActivityCreated(@NonNull+Activity+activity,+@Nullable+Bundle+savedInstanceState)+{
++++++++++++++++++++activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,+WindowManager.LayoutParams.FLAG_SECURE);++++++++++++}
++++
++++++++++++++++@Override
++++++++++++++++public+void+onActivityStarted(@NonNull+Activity+activity)+{
++++
++++++++++++++++}
++++
++++++++++++++++@Override
++++++++++++++++public+void+onActivityResumed(@NonNull+Activity+activity)+{
++++
++++++++++++++++}
++++
++++++++++++++++@Override
++++++++++++++++public+void+onActivityPaused(@NonNull+Activity+activity)+{
++++
++++++++++++++++}
++++
++++++++++++++++@Override
++++++++++++++++public+void+onActivityStopped(@NonNull+Activity+activity)+{
++++
++++++++++++++++}
++++
++++++++++++++++@Override
++++++++++++++++public+void+onActivitySaveInstanceState(@NonNull+Activity+activity,+@NonNull+Bundle+outState)+{
++++
++++++++++++++++}
++++
++++++++++++++++@Override
++++++++++++++++public+void+onActivityDestroyed(@NonNull+Activity+activity)+{
++++
++++++++++++++++}
++++++++++++});
++++
++++++++}
++++}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1899357|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>public class InShotApp extends Application {
 
 @Override
 public void onCreate() {
 super.onCreate();
 registerActivityLifecycle();
 }
 
 private void registerActivityLifecycle() {
 
 registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
 @Override
 public void onActivityCreated(@NonNull Activity activity, @Nullable Bundle savedInstanceState) {
 activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE); }
 
 @Override
 public void onActivityStarted(@NonNull Activity activity) {
 
 }
 
 @Override
 public void onActivityResumed(@NonNull Activity activity) {
 
 }
 
 @Override
 public void onActivityPaused(@NonNull Activity activity) {
 
 }
 
 @Override
 public void onActivityStopped(@NonNull Activity activity) {
 
 }
 
 @Override
 public void onActivitySaveInstanceState(@NonNull Activity activity, @NonNull Bundle outState) {
 
 }
 
 @Override
 public void onActivityDestroyed(@NonNull Activity activity) {
 
 }
 });
 
 }
 }
</code></pre>

blocks|key|2418614|text|关于阻止在应用程序中截图的可能性：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2418615|Window+window+=+requireActivity().getWindow();
window.addFlag(WindowManager.LayoutParams.FLAG_SECURE);|code-block|syntax|javascript|2418616|记得擦干净这个旗子(f.e。在onDestroy中)--在应用程序的其他安全地方启用屏幕截图：|2418617|window.clearFlags(WWindowManager.LayoutParams.FLAG_SECURE);|2418618|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|$]]

Regarding to blocking the possibility of taking a screenshot in the application:
<pre><code>Window window = requireActivity().getWindow();
window.addFlag(WindowManager.LayoutParams.FLAG_SECURE);
</code></pre>
remember to clean this flag (f.e. in onDestroy) - to enable screenshots in other safe places of the app:
<pre><code>window.clearFlags(WWindowManager.LayoutParams.FLAG_SECURE);
</code></pre>

blocks|key|603060|text|对于那些必须禁用屏幕截图并正在使用Jetpack的人，请编写以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|603061|fun+Activity.disableScreenshots()+{
++window.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
}

fun+Activity.enableScreenshots()+{
++window.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)
}

@Composable
fun+DisableScreenshots()+{
++val+context+=+LocalContext.current
++DisposableEffect(Unit)+{
++++context.getActivity()?.disableScreenshots()
++++onDispose+{
++++++context.getActivity()?.enableScreenshots()
++++}
++}
}|code-block|syntax|javascript|603062|然后只需从可组合函数调用DisableScreenshots+;)|offset|length|style|BOLD|603063|entityMap^0|0|0|C|I|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]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

For those that have to disable screenshots and are using Jetpack Compose this is what you need:
<pre><code>fun Activity.disableScreenshots() {
 window.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
}

fun Activity.enableScreenshots() {
 window.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)
}

@Composable
fun DisableScreenshots() {
 val context = LocalContext.current
 DisposableEffect(Unit) {
 context.getActivity()?.disableScreenshots()
 onDispose {
 context.getActivity()?.enableScreenshots()
 }
 }
}
</code></pre>
Then just invoke DisableScreenshots from your composable function ;)

Is it possible to prevent the screen recording in Android Application?

I would like to develop an Android Secure Application. In that I need to detect screen recording software which are running background and kill them. I have used SECURE FLAG for prevent screenshots. But I dont know is it possible to prevent Video capturing of Android Screen also. Let me know how to prevent screen capturing (video / screenshots).

How to prevent Screen Capture in Android

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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有没有可能阻止Android应用程序中的屏幕记录？我想开发一个Android安全应用程序。在这方面，我需要检测运行后台的屏幕记录软件并杀死它们。我用过安全标志来防止截图。但我不知道它是否有可能阻止视频捕获的Android屏幕。让我知道如何防止屏幕捕捉(视频/截图)。

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