CODEWITHSUNDEEP
androidandroid-relativelayout
techieWings
techieWings

Reputation: 2055

Adding child views to Relative Layout

Though I have been through many questions regarding relative layout and adding child view programatically, I am unable to resolve this issue

for (int i=0; i<views; i++) {

    ImageView img = new ImageView(this);
    LayoutParams img_params= new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    img_params.addRule(RelativeLayout.ALIGN_PARENT_LEFT|RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
    relativeLayout.addView(img, img_params);

    TextView textview = new TextView(this);
    LayoutParams text_params= new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    text_params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT|RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
    relativeLayout.addView(textview, text_params);
}

I have added log below:

06-27 11:16:38.849: E/AndroidRuntime(20595): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.

Upvotes: 1

Views: 1394

Answers (2)

Eli Blokh
Eli Blokh

Reputation: 12293

Create new instances of ImageView and TextView inside the loop

for (int i = 0; i < views; i++) {
    LayoutParams img_params= new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    img_params.addRule(RelativeLayout.ALIGN_PARENT_LEFT|RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
    ImageView img = new ImageView(this);
    relativeLayout.addView(img, img_params);

    LayoutParams text_params= new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    text_params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT|RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
    TextView textview = new TextView(this);
    relativeLayout.addView(textview, text_params);
}

Upvotes: 1

Akash
Akash

Reputation: 631

You're adding the same View objects in a loop over and over. The first time the loop runs the two Views are added and they now have a parent. They cant be added again.

You'll need to instantiate new instances of those views in every iteration for this to work.

Upvotes: 1

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