这是logcat中的错误......
02-29 16:01:35.490 9677-9677/com.example.deepaks.toggleswitch E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.deepaks.toggleswitch, PID: 9677
java.lang.IllegalStateException: Could not find method onbuttonclick(View) in a parent or ancestor Context for android:onClick attribute defined on view class android.support.v7.widget.AppCompatButton with id 'Alert'
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.resolveMethod(AppCompatViewInflater.java:307)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:266)
at android.view.View.performClick(View.java:4785)
at android.view.View$PerformClick.run(View.java:19884)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5343)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
我用来打开活动的代码
public void onbutttonclick(View s)
{
if (s.getId()==R.id.Alert)
{
Intent q= new Intent(toggle.this, MapsActivity.class);
startActivity(q);
}
}
答案 0 :(得分:0)
您有错误:
onbutttonclick
太多“t”
你需要做
onbuttonclick
答案 1 :(得分:0)
java.lang.IllegalStateException:找不到方法 onbuttonclick (查看)
,你的职能是
public void onbutttonclick(View s)
它在功能定义方面有额外的作用。将其更改为: -
public void onbuttonclick(View s)
答案 2 :(得分:0)
点击事件有误, 只需使用onbuttonclick()即可。