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POAlgorithm for looping three Buttons in a TableRow
 

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  1. POAlgorithm for looping three Buttons in a TableRow
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    <p><code>int numberofbutton=x;</code> will be provided.</p> <p>I tried to loop but I failed because <code>numberofbutton</code> has to be divisible by 3. I can't write algorithm.</p> <p>Based on <code>numberofbutton</code>, we have to loop three buttons in a TableRow programmatically.<br/> I mean, if numberofbutton is <strong>4</strong>,</p> <pre><code>TableRow[0]-&gt;Button Button Button TableRow[1]-&gt;Button </code></pre> <p>If it's <strong>3</strong>,</p> <pre><code>TableRow[0]-&gt;Button Button Button </code></pre> <p><strong>UPDATE:</strong> Based on ZouZou's answer, code is below but unsolved because tr[] is undefined:<br/></p> <pre><code>int bn = 9; if (bn % 3 == 0) { TableRow[] tr = new TableRow[bn / 3]; for (int i = 1; i &lt;=(bn / 3); i++) { tr[i] = new TableRow(this); } } else { TableRow[] tr = new TableRow[(bn / 3) + 1]; for (int i = 1; i &lt;=(bn / 3) + 1; i++) { tr[i] = new TableRow(this); } } Button[] b=new Button[bn]; for(int i=1;i&lt;=bn;i++){ b[i]=new Button(this); } int index = -1; for (int i = 0; i &lt; bn; i++) { if(i%3==0){ index+=1; tr[index].addView(b[i]); }else{ tr[index].addView(b[i]); } } </code></pre> <p><br/> <strong>UPDATE</strong>:</p> <p>Full code but why doesn't it work?:</p> <pre><code>@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TableLayout tL = (TableLayout) findViewById(R.id.table); int bn = 9; TableRow[] tr = null; if (bn % 3 == 0) { tr = new TableRow[bn / 3]; for (int i = 1; i &lt;= (bn / 3); i++) { tr[i] = new TableRow(this); } } else { tr = new TableRow[(bn / 3) + 1]; for (int i = 1; i &lt;= (bn / 3) + 1; i++) { tr[i] = new TableRow(this); } } Button[] b=new Button[bn]; for(int i=1;i&lt;=bn;i++){ b[i]=new Button(this); } int index = -1; for (int i = 0; i &lt; bn; i++) { if(i%3==0){ index+=1; tr[index].addView(b[i]); tL.addView(tr[index]); }else{ tr[index].addView(b[i]); } } } </code></pre> <p><br/></p> <pre><code>&lt;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=".MainActivity" &gt; &lt;TableLayout android:id="@+id/table" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginLeft="59dp" android:layout_marginTop="44dp" &gt; &lt;/TableLayout&gt; &lt;/RelativeLayout&gt; </code></pre>
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    1. COwow !! wtf?? -1 on this question. no one can provide full example yet. the person -1 must solve this question. or he/she may be a fool, doing -1.
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