Android异常“指定的孩子已经有一个父母......"；

问题描述

我收到如下异常.有人可以帮我吗?

I m getting exception as follow. Can anybody help me?

06-16 11:32:48.237:错误/AndroidRuntime(9223):java.lang.IllegalStateException: 指定的孩子已经有父母.您必须先对孩子的父级调用 removeView().

        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.view.ViewGroup.addViewInner(ViewGroup.java:1970)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.view.ViewGroup.addView(ViewGroup.java:1865)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.view.ViewGroup.addView(ViewGroup.java:1822)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.view.ViewGroup.addView(ViewGroup.java:1802)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at com.mVisum_philips.MainECGActivity.popupEvent(MainECGActivity.java:628)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at com.mVisum_philips.MainECGActivity$1.onClick(MainECGActivity.java:195)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.view.View.performClick(View.java:2408)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.view.View$PerformClick.run(View.java:8816)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.os.Handler.handleCallback(Handler.java:587)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.os.Handler.dispatchMessage(Handler.java:92)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.os.Looper.loop(Looper.java:123)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at android.app.ActivityThread.main(ActivityThread.java:4627)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at java.lang.reflect.Method.invokeNative(Native Method)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at java.lang.reflect.Method.invoke(Method.java:521)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
        06-16 11:32:48.237: ERROR/AndroidRuntime(9223):     at dalvik.system.NativeStart.main(Native Method)

screen_pop_up.xml 的源代码:

<?xml version="1.0" encoding="utf-8"?>
           <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/linearLayout1" android:layout_height="wrap_content" android:layout_width="match_parent">
            <LinearLayout android:id="@+id/headerLin" android:layout_width="fill_parent" android:layout_height="wrap_content">
                <RelativeLayout android:layout_height="wrap_content" android:id="@+id/relativeLayout1" android:layout_width="fill_parent">
                    <Button android:layout_width="wrap_content" android:id="@+id/button1" android:layout_height="wrap_content" android:text="Done"></Button>
                    <LinearLayout android:id="@+id/linearLayout2" android:layout_width="wrap_content" android:orientation="horizontal" android:layout_height="wrap_content" android:layout_alignParentRight="true">
                        <Button android:layout_height="wrap_content" android:background="@drawable/h_scale" android:id="@+id/button2" android:layout_width="wrap_content" android:padding="15sp"></Button>
                        <Button android:layout_height="wrap_content" android:background="@drawable/v_scale" android:id="@+id/button3" android:layout_width="wrap_content" android:padding="14sp"></Button>
                    </LinearLayout>
                </RelativeLayout>
           </LinearLayout>


        <LinearLayout android:id="@+id/linLin" android:layout_height="300sp" android:layout_width="250sp">
        </LinearLayout>
        </LinearLayout>

我得到异常的源代码如下:

Source code where i m getting the exception is as follows:

final Dialog myDialog = new Dialog(MainECGActivity.this);
                myDialog.setContentView(R.layout.screen_pop_up);
                myDialog.setTitle("My Dialog");

                LinearLayout myLin = (LinearLayout) myDialog.findViewById(R.id.linLin);
                **myLin.addView(ECGField.get(0));**

                myDialog.setCancelable(true);
                Button button = (Button) myDialog.findViewById(R.id.button1);
                button.setOnClickListener(new OnClickListener() {
                @Override
                    public void onClick(View v) {
                    myDialog.dismiss();
                    }
                });

                myDialog.show();

我在这里浏览了很多线程，但我遗漏了一些东西.提前致谢.

I have gone through many threads here but I am missing something.Thanks in advance.

推荐答案

一个视图只能有一个父级.您正在添加的视图(我猜是重用)已经是另一个视图层次结构的一部分.如果您真的想重用它(我建议您可能不要)，那么您必须将其与其现有视图层次结构中的父级分离.

A view can only have a single parent. The view that you are adding (I am guessing re-using) is already part of another view hierarchy. If you really want to reuse it (I would suggest you probably dont) then you have to detach it from its parent in its existing view hierarchy.

ECGField.get(0) 返回的任何内容都已经在视图层次结构中.

whatever is returned by ECGField.get(0) is already in a view hierarchy.

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