IllegalStateException異常的addView（）

-1

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context="com.example.utente.test_dimensions.MainActivity"> 
    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:id="@+id/main" 
     android:orientation="vertical"> 
     <LinearLayout 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:orientation="horizontal"> 
      <EditText 
       android:layout_width="160dp" 
       android:layout_height="wrap_content" 
       android:digits="123456789" 
       android:hint="ID promemoria"/> 
      <Button 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:text="rimuovi prom." /> 
     </LinearLayout> 
    </LinearLayout> 
</RelativeLayout>

的Java：

package com.example.utente.test_dimensions; 

import android.support.v7.app.ActionBar; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.widget.HorizontalScrollView; 
import android.widget.LinearLayout; 
import android.widget.TextView; 

public class MainActivity extends AppCompatActivity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    LinearLayout main = (LinearLayout)findViewById(R.id.main); 
    LinearLayout ll_eti = new LinearLayout(this); 
    ll_eti.setOrientation(LinearLayout.VERTICAL); 
    ll_eti.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    main.addView(ll_eti); 

    TextView eti_txtv = new TextView(this); 
    eti_txtv.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    eti_txtv.setText("Etichetta:"); 
    ll_eti.addView(eti_txtv); 

    TextView val_eti_txtv = new TextView(this); 
    val_eti_txtv.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    HorizontalScrollView eti_hsv = new HorizontalScrollView(this); 
    eti_hsv.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    eti_hsv.addView(val_eti_txtv); 
    ll_eti.addView(eti_hsv); 

    LinearLayout ll_info = new LinearLayout(this); 
    ll_info.setOrientation(LinearLayout.VERTICAL); 
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); 
    params.setMargins(0, 3, 0, 0); 
    ll_info.setLayoutParams(params); 
    main.addView(ll_info); 

    LinearLayout ll_date = new LinearLayout(this); 
    ll_date.setOrientation(LinearLayout.HORIZONTAL); 
    ll_date.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    ll_info.addView(ll_date); 

    TextView date = new TextView(this); 
    date.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    date.setText("01/01/2000"); 
    ll_date.addView(date); 

    TextView perm_not_y_or_n = new TextView(this); 
    LinearLayout.LayoutParams params1 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); 
    params1.setMargins(10, 0, 0, 0); 
    perm_not_y_or_n.setText("without permanent notificationW"); 
    ll_date.addView(perm_not_y_or_n); 

    LinearLayout ll_details = new LinearLayout(this); 
    LinearLayout.LayoutParams params2 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); 
    params2.setMargins(0, 3, 0, 0); 
    ll_details.setOrientation(LinearLayout.HORIZONTAL); 
    ll_details.setLayoutParams(params2); 
    ll_info.addView(ll_details); 

    TextView perm_val = new TextView(this); 
    perm_val.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    perm_val.setText("Repetitive notification:"); 
    ll_details.addView(ll_info); 

    TextView var_val = new TextView(this); 
    LinearLayout.LayoutParams params3 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); 
    params3.setMargins(5, 0 , 0 , 0); 
    var_val.setLayoutParams(params3); 
    var_val.setText("every 100 minutes"); 
    ll_details.addView(var_val); 

    LinearLayout ll_id = new LinearLayout(this); 
    ll_id.setOrientation(LinearLayout.VERTICAL); 
    ll_id.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    main.addView(ll_id); 

    TextView ID_txtv = new TextView(this); 
    LinearLayout.LayoutParams params4 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); 
    params4.setMargins(0, 5, 0, 0); 
    ID_txtv.setLayoutParams(params4); 
    ID_txtv.setText("ID:"); 
    ll_id.addView(ID_txtv); 

    HorizontalScrollView horizontalScrollView = new HorizontalScrollView(this); 
    horizontalScrollView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    ll_id.addView(horizontalScrollView); 

    TextView id_txtv = new TextView(this); 
    id_txtv.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)); 
    id_txtv.setText("p"); 
    horizontalScrollView.addView(id_txtv); 


} 

}

這裏的logcat的：

07-10 14:50:13.023 27776-27776/com.example.utente.test_dimensions E/AndroidRuntime: FATAL EXCEPTION: main 
                       Process: com.example.utente.test_dimensions, PID: 27776 
                       java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.utente.test_dimensions/com.example.utente.test_dimensions.MainActivity}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. 
                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2352) 
                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2414) 
                        at android.app.ActivityThread.access$900(ActivityThread.java:151) 
                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1318) 
                        at android.os.Handler.dispatchMessage(Handler.java:102) 
                        at android.os.Looper.loop(Looper.java:135) 
                        at android.app.ActivityThread.main(ActivityThread.java:5282) 
                        at java.lang.reflect.Method.invoke(Native Method) 
                        at java.lang.reflect.Method.invoke(Method.java:375) 
                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) 
                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699) 
                       Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. 
                        at android.view.ViewGroup.addViewInner(ViewGroup.java:3937) 
                        at android.view.ViewGroup.addView(ViewGroup.java:3787) 
                        at android.view.ViewGroup.addView(ViewGroup.java:3728) 
                        at android.view.ViewGroup.addView(ViewGroup.java:3701) 
                        at com.example.utente.test_dimensions.MainActivity.onCreate(MainActivity.java:67) 
                        at android.app.Activity.performCreate(Activity.java:6865) 
                        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) 
                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2305) 
                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2414)  
                        at android.app.ActivityThread.access$900(ActivityThread.java:151)  
                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1318)  
                        at android.os.Handler.dispatchMessage(Handler.java:102)  
                        at android.os.Looper.loop(Looper.java:135)  
                        at android.app.ActivityThread.main(ActivityThread.java:5282)  
                        at java.lang.reflect.Method.invoke(Native Method)  
                        at java.lang.reflect.Method.invoke(Method.java:375)  
                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)  
                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)

我測試將欣賞到XML文件（我的應用程序）; 我不明白爲什麼這不起作用，你有什麼建議嗎？我看到每個人都使用addView（）將視圖添加到佈局，但爲什麼這不適合我？

來源

2016-07-10 DISSENNATORE

您不能將相同的視圖添加到兩個不同的父項，或者將視圖添加到父項兩次。

看起來您正嘗試將ll_info視圖添加到main視圖和ll_details。

來源

2016-07-10 13:15:21 Titus

非常感謝你;事實上，應該是'll_details.addView（ll_info）;'但所有那些爛攤子，我看不到那個錯誤 – DISSENNATORE

@DISSENNATORE我很高興我可以幫助，祝你好運。 – Titus

你的問題是，你正試圖添加一個視圖到另一個視圖，但該視圖已被添加到不同的視圖。

線67上你正在做的：

ll_details.addView(ll_info);

試圖增加ll_info到ll_details。但是第39行上你已經添加ll_info到你的主觀點：

main.addView(ll_info);

不能在同一視圖對象添加到兩個不同的父母。

來源

2016-07-10 13:22:33 maddesa

IllegalStateException異常的addView（）

回答

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