如何在Android中获得宽度和相对布局的Heigth？ [英] How to get Width and Heigth of Relative layout in android?

问题描述

我的xml文件：

<RelativeLayout
        android:id="@+id/rl_cards_details_card_area"
        android:layout_width="fill_parent"
        android:layout_height="match_parent" >
</RelativeLayout>

Java的code：

java code:

private int w, h;
RelativeLayout rl_cards_details_card_area = (RelativeLayout) findViewById(R.id.rl_cards_details_card_area);
w = rl_cards_details_card_area.getWidth();
h = rl_cards_details_card_area.getHeight();
Log.v("W-H", w+"-"+h);

我想确切的宽度和相对布局的高度即可。我试图超过code，但我得到0-0（宽 - 高），请帮帮我。

I want exact width and height of Relative Layout. i am trying above code but i got 0-0 (width - Height), Please Help me

推荐答案

试试这个

@Override
    public void onWindowFocusChanged(boolean hasFocus) {
        // TODO Auto-generated method stub
        super.onWindowFocusChanged(hasFocus);
        updateSizeInfo();
    }
 private void updateSizeInfo() {
RelativeLayout rl_cards_details_card_area = (RelativeLayout) findViewById(R.id.rl_cards_details_card_area);
w = rl_cards_details_card_area.getWidth();
h = rl_cards_details_card_area.getHeight();
Log.v("W-H", w+"-"+h);
}

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