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我是Android开发人员(3天前开始),并且在声明View的布局时遇到问题。我已到处检查如何以编程方式设置TextView的页边距,到目前为止,它们都无法工作。当我应用布局时,TextView总是消失。为TextView设置边距使其消失
这里是我的代码:
TableLayout tView = (TableLayout)findViewById(R.id.AllDocumentsTable);
TableRow trView = buildRow();
TextView tViewProjTitle = buildCell();
tViewProjTitle.setText(doc.project);
TextView tViewDocTitle = buildCell();
tViewDocTitle.setText(doc.document);
trView.addView(tViewProjTitle);
trView.addView(tViewDocTitle);
try {
tView.addView(trView, i);
}
catch (Exception e) {
Log.e("adding tablerow", e.getMessage());
}
buildRow()..
private TableRow buildRow(){
TableRow retRow = new TableRow(this);
retRow.setBackgroundColor(Color.WHITE);
TableLayout.LayoutParams rowLayout = new TableLayout.LayoutParams(TableLayout.LayoutParams.WRAP_CONTENT,
TableLayout.LayoutParams.WRAP_CONTENT);
rowLayout.setMargins(2, 2, 2, 2);
retRow.setLayoutParams(rowLayout);
return retRow;
}
buildCell()..
private TextView buildCell(){
TextView retTView = new TextView(this);
retTView.setBackgroundColor(Color.WHITE);
retTView.setGravity(0);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
params.setMargins(2, 2, 2, 2);
retTView.setLayoutParams(params);
return retTView;
}
我的动态的布局。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff">
<HorizontalScrollView android:id="@+id/horizontalScrollView1" android:layout_width="wrap_content" android:layout_height="wrap_content">
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff">
<TableLayout android:layout_height="wrap_content"
android:id="@+id/AllDocumentsTable"
android:layout_width="match_parent"
android:background="#ffffff">
<TableRow android:layout_margin="2dp"
android:background="#000000">
<TextView android:text="Test Text1." android:layout_margin="2dp" android:background="#ffffff"></TextView>
<TextView android:text="Test Text2" android:layout_margin="2dp" android:background="#ffffff"></TextView>
</TableRow>
</TableLayout>
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
帮助!!! :)
啊哈,我的错误是,我要*后已经设置TextView的布局*,我加入的TableRow到TableLayout。在此之后,你的回答,现在它完美地工作!谢谢! –