我读过这篇文章:
Setting width of Child View using Percentage
到目前为止,如果我们在XML中设置权重和宽度但是我想以编程方式执行它,那么它的效果很好。我的布局(XML)中有一个表,我以编程方式向其添加行。在每一行中,我添加了2个文本视图。我试过这样做:
TableLayout tl = (TableLayout)findViewById(R.id.myTable);
for(int i = 0; i < nl.getLength(); i++){
NamedNodeMap np = nl.item(i).getAttributes();
TableRow trDetails = new TableRow(this);
trDetails.setBackgroundColor(Color.BLACK);
TextView tvInfo = new TextView(this);
tvInfo.setTextColor(Color.WHITE);
tvInfo.setGravity(Gravity.LEFT);
tvInfo.setPadding(3, 3, 3, 3);
tvInfo.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 10);
tvInfo.setText("info");
TextView tvDetails = new TextView(this);
tvDetails.setTextColor(Color.WHITE);
tvDetails.setGravity(Gravity.LEFT);
tvDetails.setPadding(3, 3, 3, 3);
tvDetails.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 10);
tvDetails.setText(np.getNamedItem("d").getNodeValue());
trDetails.addView(tvInfo, new LinearLayout.LayoutParams(0, LayoutParams.WRAP_CONTENT, 0.50f));
trDetails.addView(tvDetails, new LinearLayout.LayoutParams(0, LayoutParams.WRAP_CONTENT, 0.50f));
tl.addView(trDetails,new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
但没有运气,它显示空白屏幕,但如果我用XML做,那么它显示完美。请帮助我解决我在做错的问题?
由于
答案 0 :(得分:7)
您应该使用TableRow.LayoutParams
而不是Linearlayout.LayoutParams
trDetails.addView(tvInfo, new TableRow.LayoutParams(0, LayoutParams.WRAP_CONTENT, 0.50));
trDetails.addView(tvDetails, new TableRow.LayoutParams(0, LayoutParams.WRAP_CONTENT, 0.50));