Question

当软键盘消失/出现时，我希望我的布局重量发生变化。

喜欢

案例：disapper - ＆gt;布局的重量= 6

案例：apper - ＆gt;布局的重量= 10

所以我添加onlayoutChangeListener，但它的工作原理很奇怪。

if if（bottom

以及if（bottom＆gt; oldBottom）也是这样的。

总之，onLayoutChangeListener反向工作。

relativelayout_wrap_content.addOnLayoutChangeListener(
            new OnLayoutChangeListener() {

                @Override
                public void onLayoutChange(View v, int left, int top, int right,
                        int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) 
                {
                    // TODO Auto-generated method stub
                    if(bottom<oldBottom && (bottom!=oldBottom) )
                    {
                        Toast.makeText(MainActivity.mainactivity_context, "bottom<oldBottom\n"+"bottom:"+bottom+"\noldBottom:"+oldBottom, Toast.LENGTH_LONG).show();

                        relativelayout_wrap_content.setLayoutParams(
                                new LinearLayout.LayoutParams(
                                        LinearLayout.LayoutParams.MATCH_PARENT,0,6.0f));



                    }
                    else if(bottom>oldBottom && (bottom!=oldBottom)  && isSoftKeyboardShown)
                    {
                        Toast.makeText(MainActivity.mainactivity_context, "bottom>oldBottom\n"+"bottom:"+bottom+"\noldBottom:"+oldBottom, Toast.LENGTH_LONG).show();

                        relativelayout_wrap_content.setLayoutParams(
                                new LinearLayout.LayoutParams(
                                        LinearLayout.LayoutParams.MATCH_PARENT,0,10.0f));
                    }
                }
            });



edittext_free_reple.setOnFocusChangeListener(
            new OnFocusChangeListener()
            {

                @Override
                public void onFocusChange(View v, boolean hasFocus) 
                {
                    // TODO Auto-generated method stub
                    if(hasFocus)
                    {
                        isSoftKeyboardShown = true;
                        relativelayout_wrap_content.setLayoutParams(
                                new LinearLayout.LayoutParams(
                                        LinearLayout.LayoutParams.MATCH_PARENT,0,10.0f));
                    }


                }
            });

Answer 1

屏幕左上角是（0,0）。因此，如果显示softKeyBoard，则底部必须小于oldBottom。那是（底部

 if(bottom<oldBottom && (bottom!=oldBottom) )
{
//when the keyboard shown
}
else if(bottom>oldbottom)
{
//when the keyboard hidden
}

为什么会这样？ onLayoutChangeListener反向运行

1 个答案: