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POListview special adapter change column background orientation change
 

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  1. POListview special adapter change column background orientation change
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    <p>I have the following problem. The list shows well in portrait mode. But when i switch to landscape, the background of items get scrambled/reverse order. </p> <p>For example:</p> <pre><code>column 1 Column2(a) Column 3(b) Column 4(c) 1 2(red) 3 4 12 36(orange) 87(red) 32 94 55 44 23(orange) </code></pre> <p>Now i turn to landscape and my list looks like this:</p> <pre><code>column 1 Column2(a) Column 3(b) Column 4(c) 1 2 3 4(orange) 12 36(orange) 87(red) 32 94 55(red) 44 23 </code></pre> <p>the data stays the same, the background colors are switched.</p> <p>inside my specialadapter i have a getView like this: SpecAdapter_list.java</p> <pre><code> public class SpecAdapter_list extends SimpleAdapter { public SpecAdapter_list(Context context, List&lt;HashMap&lt;String, String&gt;&gt; items, int resource, String[] from, int[] to) { super(context, items, resource, from, to); } @Override public View getView(int position, View convertView, ViewGroup parent) { View view = super.getView(position, convertView, parent); if (convertView == null) { // i have a listitem.xml wich lays-out each row in the list. // several textviews are hidden. // i check these hidden textviews on specific text. // if it has the text, we change the background of a specific column item. TextView c1 = (TextView) view.findViewById(R.id.c1); String c1_text=(String)a.getText(); TextView Columnitema = (TextView) view.findViewById(R.id.Columnitema); if(c1_text.equals("YES")) { Columnitema.setBackgroundColor(0xFFe10000); Columnitema.setTextColor(0xFFFFFFFF); } else if(c1_text.equals("NO")) { Columnitema.setBackgroundColor(0xFFff9600); Columnitema.setTextColor(0xFFFFFFFF); } TextView c2 = (TextView) view.findViewById(R.id.c2); String c2_text=(String)c2.getText(); TextView Columnitemb = (TextView) view.findViewById(R.id.Columnitemb); if(c2_text.equals("PERHAPS")) { Columnitemb.setBackgroundColor(0xFFe10000); Columnitemb.setTextColor(0xFFFFFFFF); } else if(c2_text.equals("ABSOLUTELY")) { Columnitemb.setBackgroundColor(0xFFff9600); Columnitemb.setTextColor(0xFFFFFFFF); } TextView c3 = (TextView) view.findViewById(R.id.c3); String c3_text=(String)c3.getText(); TextView Columnitemc = (TextView) view.findViewById(R.id.Columnitemc); if(c3_text.equals("PERHAPS")) { Columnitemc.setBackgroundColor(0xFFe10000); Columnitemc.setTextColor(0xFFFFFFFF); } else if(c3_text.equals("ABSOLUTELY")) { Columnitemc.setBackgroundColor(0xFFff9600); Columnitemc.setTextColor(0xFFFFFFFF); } } return view; } } </code></pre> <p>MainActivity.java</p> <pre><code>package com.z_list_columnitembackground; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import com.z_list_columnitembackground.R; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.widget.ListView; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ListView lv= (ListView)findViewById(R.id.listview); // create the grid item mapping String[] from = new String[] {"rowid", "col_1", "col_2", "col_3", "c1_status","c2_status","c3_status"}; int[] to = new int[] { R.id.LI_Number, R.id.Columnitema, R.id.Columnitemb, R.id.Columnitemc, R.id.c1, R.id.c2, R.id.c3 }; // prepare the list of all records List&lt;HashMap&lt;String, String&gt;&gt; fillMaps = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); // for(int i = 0; i &lt; 10; i++){ HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); map.put("rowid", "1"); map.put("col_1", "2"); map.put("col_2", "3"); map.put("col_3", "4"); map.put("c1_status", "YES"); map.put("c2_status", ""); map.put("c3_status", ""); fillMaps.add(map); HashMap&lt;String, String&gt; map2 = new HashMap&lt;String, String&gt;(); map2.put("rowid", "12"); map2.put("col_1", "36"); map2.put("col_2", "87"); map2.put("col_3", "32"); map2.put("c1_status", "NO"); map2.put("c2_status", "PERHAPS"); map2.put("c3_status", ""); fillMaps.add(map2); HashMap&lt;String, String&gt; map3 = new HashMap&lt;String, String&gt;(); map3.put("rowid", "94"); map3.put("col_1", "55"); map3.put("col_2", "44"); map3.put("col_3", "23"); map3.put("c1_status", ""); map3.put("c2_status", ""); map3.put("c3_status", "ABSOLUTELY"); fillMaps.add(map3); // } // fill in the grid_item layout SpecAdapter_list adapter = new SpecAdapter_list(this, fillMaps, R.layout.list_item, from, to); lv.setAdapter(adapter); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_main, menu); return true; } } </code></pre> <p>Strings.xml</p> <p> </p> <pre><code> &lt;string name="app_name"&gt;Z_list_alternatingcolors&lt;/string&gt; &lt;string name="menu_settings"&gt;Settings&lt;/string&gt; &lt;string name="LI_Number"&gt;1&lt;/string&gt; &lt;string name="Columnitema"&gt;dummya&lt;/string&gt; &lt;string name="Columnitemb"&gt;dummyb&lt;/string&gt; &lt;string name="Columnitemc"&gt;dummyc&lt;/string&gt; &lt;/resources&gt; </code></pre> <p>AndroidManifest</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.z_list_columnitembackground" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="10" android:targetSdkVersion="10" /&gt; &lt;application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" &gt; &lt;activity android:name="com.z_list_columnitembackground.MainActivity" android:label="@string/app_name" android:windowSoftInputMode="stateHidden|adjustResize" android:configChanges="keyboardHidden|orientation"&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre>
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