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POAndroid - How to programmatically set button color
 

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  1. POAndroid - How to programmatically set button color
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    <p>I am reading in some data from a REST api and need to generate some buttons based on the information the app receives.</p> <p>Because I need the same buttons in many Activity screens I have extended Button to make a RachelButton and I set it up in the constructor.</p> <pre><code>public RachelButton(Context context, Info info) { super(context); this.info= info; setText(info.getTime()); setTypeface(Typeface.DEFAULT, Typeface.BOLD); int identifier = 0; if(info.isAvailable()){ identifier = getContext().getResources().getIdentifier("drawable/info_button_"+info.getType(), null, getContext().getPackageName()); }else{ identifier = R.drawable.info_button_unavailable; } if(identifier == 0){ Log.e("INFO_BUTTON", "no button for "+info.getType()); } setBackgroundResource(identifier); setTextColor(R.color.info_button_text_color); setOnClickListener(new View.OnClickListener(){ public void onClick(View view) { //do stuff } }); } </code></pre> <p>Then an example of the resource I am using to generate a colored button is this:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;selector xmlns:android="http://schemas.android.com/apk/res/android"&gt; &lt;item android:state_pressed="true" &gt; &lt;shape&gt; &lt;gradient android:startColor="@color/button_pressed" android:endColor="@color/button_pressed" android:angle="270" /&gt; &lt;stroke android:width="3dp" android:color="@color/button_pressed" /&gt; &lt;corners android:radius="3dp" /&gt; &lt;padding android:left="5dp" android:top="5dp" android:right="5dp" android:bottom="5dp" /&gt; &lt;/shape&gt; &lt;/item&gt; &lt;item android:state_focused="true" &gt; &lt;shape&gt; &lt;gradient android:endColor="@color/info_normal" android:startColor="@color/info_normal" android:angle="270" /&gt; &lt;stroke android:width="3dp" android:color="@color/info_normal" /&gt; &lt;corners android:radius="3dp" /&gt; &lt;padding android:left="5dp" android:top="5dp" android:right="5dp" android:bottom="5dp" /&gt; &lt;/shape&gt; &lt;/item&gt; &lt;item&gt; &lt;shape&gt; &lt;gradient android:endColor="@color/info_normal" android:startColor="@color/info_normal" android:angle="270" /&gt; &lt;stroke android:width="3dp" android:color="@color/info_normal" /&gt; &lt;corners android:radius="3dp" /&gt; &lt;padding android:left="5dp" android:top="5dp" android:right="5dp" android:bottom="5dp" /&gt; &lt;/shape&gt; &lt;/item&gt; &lt;/selector&gt; </code></pre> <p>As you can see in the code I am setting the text color and I'm sure that this color exists as a resource (thank you IntelliJ).</p> <p>But setting the text color like this has no effect at all, the text color on the button seems to be a darker shade of the button's background color.</p> <p>If anyone could give me some advice as to what to try next I would be most appreciative.</p>
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    1. COYou should take a look at Android themes and styles. They allow you to apply the same look and feel to one, more or all UI elements of various types.
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      1. USChristopher Orr
    2. COI have just started reading about that.
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