我試圖以編程方式在tablerow中設置textview和複選框的權重。經過一番研究後,我發現LayoutParams的第三個參數被用來做這件事。但是,它似乎並沒有工作。有人可以看看這段代碼,看看有什麼問題嗎?謝謝。 (使用LinearLayout建議編輯)設置顯示元素的重量
public LayerSelectorView(Context context) super(context); this.context = context; float density = context.getResources()。getDisplayMetrics()。density;
linearLayout = new LinearLayout(context);
linearLayout.setOrientation(LinearLayout.VERTICAL);
final LinearLayout.LayoutParams mainParams = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
linearLayout.setLayoutParams(mainParams);
titleText = new TextView(context);
titleText.setTextAppearance(context, android.R.style.TextAppearance_Large);
titleText.setText("Select Layers");
titleText.setTextColor(Color.WHITE);
titleText.setId(id);
final LinearLayout.LayoutParams titleParams = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
titleParams.setMargins(20, 20, 0, 0);
titleText.setLayoutParams(titleParams);
linearLayout.addView(titleText);
}
public void updateView()
{
overlays = ((MapActivity)context).getMapView().getOverlays();
loadLayers();
this.addView(linearLayout);
linearLayout.setBackgroundColor(0x88000000);
linearLayout.invalidate();
this.invalidate();
}
public void loadLayers()
{
TableLayout table = new TableLayout(context);
final LinearLayout.LayoutParams tableParams = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
table.setLayoutParams(tableParams);
int i = id+1;
for(final MapOverlay mo: overlays)
{
TableRow tblRow = new TableRow(context);
TextView layer = new TextView(context);
TableRow.LayoutParams trParams = new TableRow.LayoutParams(0, LayoutParams.FILL_PARENT, 1f);
layer.setTextAppearance(context, android.R.style.TextAppearance_Large);
layer.setText(mo.getName());
layer.setTextColor(Color.WHITE);
layer.setId(i);
i++;
layer.setLayoutParams(trParams);
final CheckBox chk = new CheckBox(context);
TableRow.LayoutParams trParams1 = new TableRow.LayoutParams(0, LayoutParams.FILL_PARENT, .2f);
chk.setLayoutParams(trParams1);
chk.setFocusable(false);
chk.setClickable(false);
chk.setChecked(true);
tblRow.addView(layer);
tblRow.addView(chk);
table.addView(tblRow);
tblRow.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
if(mo.isVisible())
{
mo.setVisible(false);
chk.setChecked(false);
}
else
{
mo.setVisible(true);
chk.setChecked(true);
}
}
});
}
linearLayout.addView(table);
}
使用LinearLayout而不是RelativeLayout –