android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
来源:互联网 发布:下载51vv软件 编辑:程序博客网 时间:2024/05/22 08:07
错误产生:
导致报这个错是在于new AlertDialog.Builder(mcontext),虽然这里的参数是AlertDialog.Builder(Context context)但我们不能使用getApplicationContext()获得的Context,而必须使用Activity,因为只有一个Activity才能添加一个窗体。
解决方法:将new AlertDialog.Builder(Context context)中的参数用Activity.this(Activity是你的Activity的名称)来填充就可以正确的创建一个Dialog了。
- private Context mcontext;
- @Override
- protected void onCreate(Bundle savedInstanceState) {mcontext = getApplicationContext();
- System.out.println("mcontext=" + mcontext);
- }
- new AlertDialog.Builder(mcontext)
- .setIcon(android.R.drawable.ic_dialog_alert)
- .setTitle("Warnning")
- .setMessage(
- "You forget to write the message. Do you want to fill out it ??")
- .setPositiveButton("Yes", positiveListener).setNegativeButton(
- "No", negativeListener).create().show();
导致报这个错是在于new AlertDialog.Builder(mcontext),虽然这里的参数是AlertDialog.Builder(Context context)但我们不能使用getApplicationContext()获得的Context,而必须使用Activity,因为只有一个Activity才能添加一个窗体。
解决方法:将new AlertDialog.Builder(Context context)中的参数用Activity.this(Activity是你的Activity的名称)来填充就可以正确的创建一个Dialog了。
- new AlertDialog.Builder(MyActivity.this)
- .setIcon(android.R.drawable.ic_dialog_alert)
- .setTitle("Warnning")
- .setMessage(
- "You forget to write the message. Do you want to fill out it ??")
- .setPositiveButton("Yes", positiveListener).setNegativeButton(
- "No", negativeListener).create().show();
0 0
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window — token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- 【C++】输出格式
- [POJ1655]Balancing Act(树形dp)
- java 栈与队列
- hadoop完全分布式集群安装
- iOS动画解析
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- Golang tls 链接通信
- C语言动态分配一维数组
- AYITACM2016省赛第二周(dp+其他) A-雷达装置(区间选点问题)
- HDOJ 5120-Intersection【几何数学】
- Android Studio使用过程中那些事儿(持续更新)
- iOSS系统分享
- linux内核学习总结
- 跨域iframe高度自适应的多种方法