我的android应用程序出现错误

该应用程序在安卓果冻豆上运行良好，但在安卓M上不起作用。它表示InvocationTargetException

MainActivity.java

     @Override
public void onClick(View v) {
    switch (v.getId()) {
        case R.id.enableWifiHotSpotId:
            try {
                if (!((editText.getText().toString()).equals(""))) {
                    OnOfHotspot.hotspotName = editText.getText().toString();
                    OnOfHotspot.getApConfiguration(this);
                    OnOfHotspot.configApState(this, true);
                }else {
                    Toast.makeText(getApplicationContext(),"Please Specify Hotspot name!",Toast.LENGTH_LONG).show();
                }

            } catch (Exception e) {
                e.printStackTrace();
            }
            break;

        case R.id.disableWifiHotspotId:
            try {
                OnOfHotspot.getApConfiguration(this);
                OnOfHotspot.configApState(this, false);
            } catch (Exception e) {
                e.printStackTrace();
            }
            break;
      }
 }

权限

<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>

Github

解决方案：我只需添加此方法即可获得写入设置 允许

并在onClick中调用writePermission（）

---

在android版本23及更高版本中，您必须在运行时请求权限。ie；即使您已经在清单中声明了权限，您也应该在版本23及更高版本的运行时请求该权限。这就是为什么该应用程序在Jellybean中工作，在棉花糖中崩溃的原因。请参阅由以下原因引起的行

：java.lang.SecurityException:com.juggernaut.hospot未被授予此权限
权限：android.permission.WRITE_设置。

它清楚地表明未授予权限。在创建热点之前请求并获得授予的权限。有关在运行时管理权限的详细信息，请参阅

请不要还原其他人所做的更改

07-09 14:04:23.869 29724-29724/com.juggernaut.hotspot W/System.err:java.lang.reflect.InvocationTargetException
07-09 14:04:23.874 432-3097/? D/APM-AudioPolicyManager: startOutput()--
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at com.juggernaut.hotspot.OnOfHotspot.configApState(OnOfHotspot.java:47)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at com.juggernaut.hotspot.MainActivity.onClick(MainActivity.java:48)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at android.view.View.performClick(View.java:5233)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at android.view.View$PerformClick.run(View.java:21209)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at android.os.Handler.handleCallback(Handler.java:739)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:95)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at android.os.Looper.loop(Looper.java:152)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:5497)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
07-09 14:04:23.879 29724-29724/com.juggernaut.hotspot W/System.err: Caused by: java.lang.SecurityException: com.juggernaut.hotspot was not granted  this 
permission: android.permission.WRITE_SETTINGS.
07-9 14:04:23.883 29724-29724/com.juggernaut.hotspot W/System.err:     at android.os.Parcel.readException(Parcel.java:1620)
07-09 14:04:23.883 29724-29724/com.juggernaut.hotspot W/System.err:     at android.os.Parcel.readException(Parcel.java:1573)
07-09 14:04:23.883 29724-29724/com.juggernaut.hotspot W/System.err:     at android.net.wifi.IWifiManager$Stub$Proxy.setWifiApEnabled(IWifiManager.java:1511)
07-09 14:04:23.883 29724-29724/com.juggernaut.hotspot W/System.err:     at android.net.wifi.WifiManager.setWifiApEnabled(WifiManager.java:1590)
07-09 14:04:23.883 29724-29724/com.juggernaut.hotspot W/System.err:     ... 12 more

 public void writePermission() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        if (!Settings.System.canWrite(getApplicationContext())) {
            Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS, Uri.parse("package:" + getPackageName()));
            startActivityForResult(intent, 200);

        }
    }
}