android 动态设置View的高度和宽度移动开发

LinearLayout.LayoutParams linearParams =(LinearLayout.LayoutParams) TextView.getLayoutParams(); //取控件textView当前的布局参数linearParams.width = 40; // 控件的宽强制设成30 linearParams.height =40; // 控件的高强制设成20TextView.setLayoutParams(linearParams);

/** * 重设 view 的宽高 */ public static void setViewLayoutParams(View view, int nWidth, int nHeight) { ViewGroup.LayoutParams lp = view.getLayoutParams(); if (lp.height != nHeight || lp.width != nWidth) { lp.width = nWidth; lp.height = nHeight; view.setLayoutParams(lp); } }

自动属性长度

ViewGroup.LayoutParams.WRAP_CONTENT

ViewGroup.LayoutParams.MATCH_PARENT

控件的边距

RelativeLayout.LayoutParams linearParams2 =(RelativeLayout.LayoutParams) top2.getLayoutParams(); //取控件textView当前的布局参数 linearParams2.topMargin =450; // 控件的边距 top2.setLayoutParams(linearParams2);

动态设置列表高度

LinearLayout.LayoutParams linearParams =(LinearLayout.LayoutParams) activityOneRecyclerView.getLayoutParams(); //取控件textView当前的布局参数 linearParams.height = UIUtils.dip2px(98)*6; //98是item高度。6是item数量

【android 动态设置View的高度和宽度】工具方法：

/** * 将dip或dp值转换为px值，保证尺寸大小不变 */ public static int dip2px(Context context, float dipValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dipValue * scale + 0.5f); }