android change background image programmatically from string

Question

Possible Duplicate:
Setting Android images from string value

I need to change background image programmatically on Android with source string I have. For example I have an array of strings gotten from XML file "source1", "source2" etc., so how can I set them to background as images? I saw examples like mTextView.setBackgroundResource(R.drawable.myResouce);, but I don't understand how to set mySource from a String. May be it is possible through drawable object?

see http://stackoverflow.com/questions/4313007/setting-android-images-from-string-value — ngesh, Apr 18 '12 at 10:55
Why you make text as a background..? If you need hint then use "android:hint"... — V.J., Apr 18 '12 at 10:57
Which type of strings are you getting from XML file? Can you show some examples? — Krishna Suthar, Apr 18 '12 at 11:04

score 5 · Accepted Answer · edited Jun 20 '20 at 09:12

5

Keep your images name inside drawables same as of in String.xml.

Say for eg: images.png it should be images in String.xml

If you pass this name to getResourceId() it will returns you Drawable with that String Variable.

public static int getResourceId(Context context, String name, String resourceType) {
    return context.getResources().getIdentifier(name, resourceType, context.getPackageName());
}

int iconId = getResourceId(Activity.this, image, "drawable");    

ImageView categoryIcon = (ImageView) v.findViewById(R.id.category_icon);
categoryIcon.setImageResource(iconId);

edited Jun 20 '20 at 09:12

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answered Apr 18 '12 at 11:07

Venky

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What is toResourceString(name) method? – Arthur Kushman Apr 18 '12 at 11:26
Check mu updated answer.No need of that method..Simply pass String name – Venky Apr 18 '12 at 11:29
I've tried this, but it didn`t work for me `View v = new View(this); TextView textView = (TextView) v.findViewById(R.id.provider_logo); int resid = Helpers.getResourceId(PaymentActivity.this, "logo", "drawable"); textView.setBackgroundResource(resid);` – Arthur Kushman Apr 18 '12 at 12:29
You have to set Background for ImageView, why are you setting for TextView? – Venky Apr 18 '12 at 13:16
Yeap, works good without v in v.findViewById - answer accepted =) – Arthur Kushman Apr 18 '12 at 13:17
Could U please explain me how to create an xml with several images? I presume that this file should be saved in drawable folder? I mean what should be the structure of an xml? – Arthur Kushman Apr 19 '12 at 05:51
Come to chat Room http://chat.stackoverflow.com/rooms/5098/android-people – Venky Apr 19 '12 at 05:53

android change background image programmatically from string

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