在所有屏幕自定义敬酒的消息? [英] Custom toast message in all screens?
问题描述
我有prepared 1 application.My应用程序有15个屏幕。现在,我想在所有的屏幕上显示自定义的烤面包的消息我已经prepared一种布局和inflated.It正在一screen.I希望与单一的方法所有的屏幕为显示敬酒消息我已经prepared在Java class.when一种方法,我想显示敬酒消息只是我叫method.but我得到nullpointerexecption.My code是,
I have prepared one application.My application have 15 screen .Now i want display custom toast message in all screens for that i have prepared one layout and inflated.It is working for one screen.I want display toast message in all screens with single method for that i have prepared one method in java class.when i want display toast message just i call method.but i got nullpointerexecption.My code is,
public static void showToastMessage(String message){
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
View layout = inflater.inflate(R.layout.custom_toast,
(ViewGroup) ((Activity) context).findViewById(R.id.customToast));
// set a message
TextView text = (TextView) layout.findViewById(R.id.text);
text.setText(message);
// Toast...
Toast toast = new Toast(context);
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(layout);
toast.show();
}
日志是
java.lang.NullPointerException
at com.guayama.utilities.CommonMethods.showToastMessage(CommonMethods.java:474)
at android.view.View.performClick(View.java:3511)
at android.view.View$PerformClick.run(View.java:14105)
at android.os.Handler.handleCallback(Handler.java:605)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
觉得我做了错误的一些地方,请帮助。
think i done mistake some where please help.
推荐答案
改变你的方法
从
showToastMessage(String message)
到
showToastMessage(Context context,String message);
似乎方面的问题我
it seems context problem to me
你的函数看起来像这样
public static void showToastMessage(Context context,String message){
LayoutInflater inflater = context.getLayoutInflater();
View layout = inflater.inflate(R.layout.custom_toast,
(ViewGroup) ((Activity) context).findViewById(R.id.customToast));
// set a message
TextView text = (TextView) layout.findViewById(R.id.text);
text.setText(message);
// Toast...
Toast toast = new Toast(context);
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(layout);
toast.show();
}
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