原因

在某些机型上居然后出现permission denied for window type 2038错误：

E/AndroidRuntime: FATAL EXCEPTION: main

Process: com.lanmao.jpsg.android, PID: 27024

android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W @ff8b1a

-- permission denied for window type 2038

at android.view.ViewRootImpl.setView(ViewRootImpl.java:1090)

at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:381)

at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93)

at com.quicksdk.apiadapter.undefined.a.y.b(ToolBar.java:58)

at com.quicksdk.apiadapter.undefined.UserAdapter$6.onClick(UserAdapter.java:138)

at com.quicksdk.apiadapter.undefined.a.r$a$1.onClick(LoginDialog.java:88)

at android.view.View.performClick(View.java:7339)

at android.widget.TextView.performClick(TextView.java:14226)

at android.view.View.performClickInternal(View.java:7305)

at android.view.View.access$3200(View.java:846)

at android.view.View$PerformClick.run(View.java:27787)

at android.os.Handler.handleCallback(Handler.java:873)

at android.os.Handler.dispatchMessage(Handler.java:99)

at android.os.Looper.loop(Looper.java:214)

at android.app.ActivityThread.main(ActivityThread.java:7081)

at java.lang.reflect.Method.invoke(Native Method)

at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965) ```

Build.VERSION.SDK_INT

Build.VERSION.SDK_INT 软件app安装在哪个手机上，该手机的操作系统版本号 比如8.1对应的SDK_INT是27

The SDK version of the software currently running on this hardware device.

This value never changes while a device is booted, but it may increase when

the hardware manufacturer provides an OTA update.

Android API与Android版本对应关系

SDK_INT

解决方案

主要代码

private static final int FloatRequestCode = 1002;

public void onCreate() {

super.onCreate();

Activity context = getContext();

com.quicksdk.Sdk.getInstance().onCreate(context);

if(!checkFloatPermission(context)){

requestFloatPermission(context, FloatRequestCode);

}

}

public void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data);

final Activity context = getContext();

com.quicksdk.Sdk.getInstance().onActivityResult(context,

requestCode, resultCode, data);

if(requestCode == FloatRequestCode) {

Handler handler = new Handler();

handler.postDelayed(new Runnable() {

@Override

public void run() {

if(!checkFloatPermission(context)){

requestFloatPermission(context,FloatRequestCode);

}

}

},1000);

}

}

/***

* 检查悬浮窗开启权限

* @param context

* @return

*/

public boolean checkFloatPermission(Context context) {

if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT)

return true;

if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {

try {

Class cls = Class.forName("android.content.Context");

Field declaredField = cls.getDeclaredField("APP_OPS_SERVICE");

declaredField.setAccessible(true);

Object obj = declaredField.get(cls);

if (!(obj instanceof String)) {

return false;

}

String str2 = (String) obj;

obj = cls.getMethod("getSystemService", String.class).invoke(context, str2);

cls = Class.forName("android.app.AppOpsManager");

Field declaredField2 = cls.getDeclaredField("MODE_ALLOWED");

declaredField2.setAccessible(true);

Method checkOp = cls.getMethod("checkOp", Integer.TYPE, Integer.TYPE, String.class);

int result = (Integer) checkOp.invoke(obj, 24, Binder.getCallingUid(), context.getPackageName());

return result == declaredField2.getInt(cls);

} catch (Exception e) {

return false;

}

} else {

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

AppOpsManager appOpsMgr = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);

if (appOpsMgr == null)

return false;

int mode = appOpsMgr.checkOpNoThrow("android:system_alert_window", android.os.Process.myUid(), context

.getPackageName());

return Settings.canDrawOverlays(context) || mode == AppOpsManager.MODE_ALLOWED || mode == AppOpsManager.MODE_IGNORED;

} else {

return Settings.canDrawOverlays(context);

}

}

}

/**

* 悬浮窗开启权限

* @param context

* @param requestCode

*/

public void requestFloatPermission(Activity context, int requestCode){

Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);

intent.setData(Uri.parse("package:" + context.getPackageName()));

context.startActivityForResult(intent, requestCode);

}

参考