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PODynamically changing UI using merge and include tags depending on click
 

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    <p>I'm new to android and programming in general so go easy!</p> <p>I have created a - probably overcomplicated but it does what I want - main.xml with my layout which goes something like this:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/main_scrollview" android:layout_width="wrap_content" android:layout_height="wrap_content" &gt; &lt;LinearLayout ... &gt; &lt;TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/title" android:gravity="center" /&gt; &lt;TableLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center" android:stretchColumns="0" &gt; &lt;TableRow&gt; &lt;TextView/&gt; &lt;Spinner/&gt; &lt;/TableRow&gt; &lt;TableRow&gt; &lt;TextView/&gt; &lt;Spinner/&gt; &lt;/TableRow&gt; &lt;/TableLayout&gt; &lt;TableLayout android:id="@+id/main_tablelayout2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center" android:stretchColumns="*" &gt; &lt;include android:id="@+id/include" layout="@layout/price0" /&gt; &lt;TableRow&gt; &lt;TextView/&gt; &lt;EditText/&gt; &lt;/TableRow&gt; &lt;/TableLayout&gt; &lt;/LinearLayout&gt; &lt;/ScrollView&gt; </code></pre> <p>This is one of the options that I'm trying to include (price1.xml):</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;merge xmlns:android="http://schemas.android.com/apk/res/android"&gt; &lt;TableRow&gt; &lt;TextView android:layout_width="wrap_content" android:layout_height="fill_parent" android:text="@string/price1" android:gravity="center_vertical" /&gt; &lt;EditText android:id="@+id/price1" /&gt; &lt;/TableRow&gt; &lt;/merge&gt; </code></pre> <p>I am trying to dynamically change the include depending on what value one of the spinners has, but I get a force close on starting the app.</p> <p>The logcat error is:</p> <pre><code>01-18 15:31:42.826: ERROR/AndroidRuntime(719): FATAL EXCEPTION: main 01-18 15:31:42.826: ERROR/AndroidRuntime(719): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.view.ViewGroup.addViewInner(ViewGroup.java:1976) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.view.ViewGroup.addView(ViewGroup.java:1871) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.widget.TableLayout.addView(TableLayout.java:421) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.view.ViewGroup.addView(ViewGroup.java:1828) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.widget.TableLayout.addView(TableLayout.java:403) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.view.ViewGroup.addView(ViewGroup.java:1808) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.widget.TableLayout.addView(TableLayout.java:394) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at com.kavi.eta.Calculate$1.onItemSelected(Calculate.java:36) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.widget.AdapterView.fireOnSelected(AdapterView.java:871) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.widget.AdapterView.access$200(AdapterView.java:42) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.widget.AdapterView$SelectionNotifier.run(AdapterView.java:837) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.os.Handler.handleCallback(Handler.java:587) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.os.Handler.dispatchMessage(Handler.java:92) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.os.Looper.loop(Looper.java:123) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at android.app.ActivityThread.main(ActivityThread.java:3647) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at java.lang.reflect.Method.invokeNative(Native Method) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at java.lang.reflect.Method.invoke(Method.java:507) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 01-18 15:31:42.826: ERROR/AndroidRuntime(719): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>Looks like I'm doing the java code wrong but I can't figure out how to properly remove the default include and replace it with another layout:</p> <pre><code>public void onItemSelected(AdapterView&lt;?&gt; arg0, View arg1, int position, long id) { int index = formatSpinner.getSelectedItemPosition(); if (index == 0) { TableLayout tl = (TableLayout)findViewById(R.id.main_tablelayout2); tl.removeView(findViewById(R.id.include)); LayoutInflater inflater = getLayoutInflater(); tl.addView(inflater.inflate(R.layout.price1, tl, true)); } </code></pre> <p>Sorry about the long post but I've searched everywhere and can't find a clear answer. Hopefully this'll at least provide a decent-ish example...</p>
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