Java 如果用户在应用程序运行期间禁用其internet连接，如何强制应用程序结束？

如果用户在应用程序运行期间禁用其internet连接，我想强制应用程序结束 我尝试了这段代码，在应用程序开始时效果很好，但当我在运行过程中禁用互联网时，它并没有关闭！ 这是我的密码

  @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_log_reg);

    if(!isNetworkAvailable(this)) {
        Toast.makeText(this,"No Internet connection",Toast.LENGTH_LONG).show();
        finish(); //Calling this method to close this activity when internet is not available.
    }
  register_btn = (Button)findViewById(R.id.registerbtn);
    register_btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i=new Intent(LogRegActivity.this,RegisterActivity.class);
            startActivity(i);
        }
    });
    login_btn=(Button)findViewById(R.id.loginbtn);
    login_btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i =new Intent(LogRegActivity.this,LoginActivity.class);
            startActivity(i);
        }
    });

}

public static boolean isNetworkAvailable(Context context) {
    ConnectivityManager conMan = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    if(conMan.getActiveNetworkInfo() != null && conMan.getActiveNetworkInfo().isConnected())
        return true;
    else
        return false;
}

}

这是我的build.gradle当我使用广播接收器时，它表明使用receiver对于N或更高版本是不推荐的。我如何解决这个问题

   <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>

android {
compileSdkVersion 27
defaultConfig {
    applicationId "net.amr.myapplication"
    minSdkVersion 16
    targetSdkVersion 27
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}

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您需要注册一个广播接收器以执行连接操作。您可以在那里检查连接的状态

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另请参见。

您需要创建一个活动，并使用以下标志打开该活动，然后通过在已创建活动的onCreate中调用finish来完成它

在检查internet连接的位置添加以下代码

startActivity(new Intent(this, NoInternetActivity.class)
                                .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK)))

无互联活动中的活动

---

不要忘了在清单中添加NoInternetActivity使用广播接收器更改连接，以下是实现此目的的步骤：

步骤1：在manifest.xml中注册接收方

 <receiver android:name="NetworkChangeReceiver ">
            <intent-filter>
                <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
                <action android:name="android.net.wifi.WIFI_STATE_CHANGED" />
                <action android:name="android.location.PROVIDERS_CHANGED" /> 
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>

步骤3：处理网络变化的广播接收器：

public class HandleNetwork extend AppcompatActivity{

  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        registerNetworkBroadcastForNougat();


    }

 private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (isNetworkAvailable(this)) {
             //logic on network enable
        } else {
             //logic on network disable
        }


 public static boolean isNetworkAvailable(Context context) {
        if (context == null) return false;
        try {
            ConnectivityManager connManager = (ConnectivityManager) context.getSystemService
                    (Context.CONNECTIVITY_SERVICE);
            if (connManager.getActiveNetworkInfo() != null && connManager.getActiveNetworkInfo()
                    .isAvailable() && connManager.getActiveNetworkInfo().isConnected()) {
                return true;
            }
        } catch (Exception ex) {

            ex.printStackTrace();
            return false;
        }
        return false;
    }


//Register receiver 

 private void registerNetworkBroadcastForNougat() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            registerReceiver(mMessageReceiver , new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
        }
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            registerReceiver(mMessageReceiver , new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
        }
    }

    protected void unregisterNetworkChanges() {
        try {
            unregisterReceiver(mNetworkReceiver);
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        unregisterNetworkChanges();
    }
}

}

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希望它能帮助你

使用广播接收器来实现这一点。你能为它发布代码吗？发布代码，让人检查一下！先生，我的代码已在运行，但在创建活动时，但在运行期间，当我关闭internet时，活动仍在运行。此外，我检查了文档，发现它与我的代码相同，因此，如果它能解决我的问题，我如何注册此连接操作？这仅适用于所有Vesrion或牛轧糖。？？是的，这将适用于所有版本。你试过这个吗？我试对了。noe，在实现Hello plz后，我会告诉你它是否有效。请检查我的编辑。它说这是不推荐的

public class NetworkChangeReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(final Context context, final Intent intent) {

        if(checkInternet(context))
        {
            Toast.makeText(context, "Network Available",Toast.LENGTH_LONG).show(); 
        }

    }

    boolean checkInternet(Context context) {
        ServiceManager serviceManager = new ServiceManager(context);
        if (serviceManager.isNetworkAvailable()) {
            return true;
        } else {
            return false;
        }
    }

}

public class HandleNetwork extend AppcompatActivity{

  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        registerNetworkBroadcastForNougat();


    }

 private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (isNetworkAvailable(this)) {
             //logic on network enable
        } else {
             //logic on network disable
        }


 public static boolean isNetworkAvailable(Context context) {
        if (context == null) return false;
        try {
            ConnectivityManager connManager = (ConnectivityManager) context.getSystemService
                    (Context.CONNECTIVITY_SERVICE);
            if (connManager.getActiveNetworkInfo() != null && connManager.getActiveNetworkInfo()
                    .isAvailable() && connManager.getActiveNetworkInfo().isConnected()) {
                return true;
            }
        } catch (Exception ex) {

            ex.printStackTrace();
            return false;
        }
        return false;
    }


//Register receiver 

 private void registerNetworkBroadcastForNougat() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            registerReceiver(mMessageReceiver , new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
        }
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            registerReceiver(mMessageReceiver , new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
        }
    }

    protected void unregisterNetworkChanges() {
        try {
            unregisterReceiver(mNetworkReceiver);
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        unregisterNetworkChanges();
    }
}

}