我为自定义吐司创建了以下方法。public void customToastMessage(String message){ LayoutInflater inf = (LayoutInflater)con.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View layout = inf.inflate(R.layout.custom_toast_layout,(ViewGroup)findViewById(R.id.myCustomToast)); TextView toastMessage = layout.findViewById(R.id.myCustomToastText); toastMessage.setText(message); Toast warningMessage = Toast.makeText(con, message, Toast.LENGTH_LONG); warningMessage.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL, 0, 10); warningMessage.setView(layout); warningMessage.show();}只要这个方法存在于 MainActivity 中,它就可以正常工作,但是当我将它移到一个单独的类时,我得到:“java.lang.IllegalStateException:无法在 android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:389) 处执行 android:onClick 的方法”。我在下面的课程中需要改变什么?public class MyCustomUI extends AppCompatActivity { private static Context con; public MyCustomUI(Context con){ this.con = con; } public void customToastMessage(String message){ LayoutInflater inf = (LayoutInflater)con.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View layout = inf.inflate(R.layout.custom_toast_layout,(ViewGroup)findViewById(R.id.myCustomToast)); TextView toastMessage = layout.findViewById(R.id.myCustomToastText); toastMessage.setText(message); Toast warningMessage = Toast.makeText(con, message, Toast.LENGTH_LONG); warningMessage.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL, 0, 10); warningMessage.setView(layout); warningMessage.show(); }}
1 回答
阿晨1998
TA贡献2037条经验 获得超6个赞
我猜你的问题是当你膨胀你的布局时:
视图布局 = inf.inflate(R.layout.custom_toast_layout,(ViewGroup)findViewById(R.id.myCustomToast));
我也猜测问题是(ViewGroup)findViewById(R.id.myCustomToast). 您正在尝试查找该类上不存在但在 MainActivity 上的视图/视图组。
将它作为参数传递给您的方法(只是相关部分):
public void customToastMessage(String message, ViewGroup customToast){
LayoutInflater inf = (LayoutInflater)con.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = inf.inflate(R.layout.custom_toast_layout, viewgroup);
添加回答
举报
0/150
提交
取消