这里我在一个linearlayout中以另外一个linearlayout编程方式添加了一个textview。但是,即使我设置了它,也无法对我的线性布局应用边距。
LinearLayout LL = new LinearLayout(TimeTableAdvanced.this);
LL.setBackgroundColor(getResources().getColor(R.color.menublue));
LL.setOrientation(LinearLayout.VERTICAL);
LL.setGravity(Gravity.TOP);
LayoutParams LLParams = new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);
int marginPixel = 3;
float density = TimeTableAdvanced.this.getResources().getDisplayMetrics().density;
int marginDp = (int)(marginPixel * density);
int marginTopPixel = 3;
int marginTopDp = (int)(marginTopPixel * density);
LLParams.setMargins(marginDp, marginTopDp, marginDp, marginDp);
LL.setLayoutParams(LLParams);
int paddingPixel = 3;
int paddingDp = (int)(paddingPixel * density);
LL.setPadding(paddingDp,paddingDp,paddingDp,paddingDp);
TextView infoheader = new TextView(TimeTableAdvanced.this);
infoheader.setText(getResources().getString(R.string.departuretimesfromfirstbusstop));
infoheader.setTextColor(getResources().getColor(R.color.white));
infoheader.setTextSize(14.0f);
LLParams = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
marginPixel = 5;
marginDp = (int)(marginPixel * density);
LLParams.setMargins(marginDp, 0, 0, 0);
infoheader.setLayoutParams(LLParams);
LL.addView(infoheader);
timetablelayout.addView(LL);
答案 0 :(得分:1)
试试这个,希望它能奏效。
LinearLayout.LayoutParams LLParams = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
LLParams.setMargins(marginDp, marginTopDp, marginDp, marginDp);
<强> P.S 强> 只是建议将dp转换为像素的方法,请尝试:)
private int dpToPx(int dp){
float density = getResources().getDisplayMetrics().density;
return Math.round((float) dp * density);
}