例如,我以编程方式创建4个表格,我希望每个表格高度为屏幕的1/4大小。每个桌子高度是屏幕尺寸的一半。我尝试了不同的方法,但是桌子高度并没有改变。我管理更改tablerow宽度,但高度没有。 这是我的代码:
@SuppressLint("NewApi")
public class GameActivity extends Activity {
private Context context;
public void drawTable(){
int i;
TableLayout table = new TableLayout(context);
table.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.MATCH_PARENT));
//table.setStretchAllColumns(true);
//table.setShrinkAllColumns(true);
//table.setWeightSum(1.0F);
TableRow[] rows = new TableRow[5];
for(i = 0; i < 4; ++i){
rows[i] = new TableRow(context);
rows[i].setBackgroundResource(R.drawable.images214);
rows[i].setWeightSum((float)1.0);
rows[i].setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, 10));
//rows[i].setScaleY(0.25F);
table.addView(rows[i]);
}
LinearLayout l = (LinearLayout) findViewById(R.id.linear);
l.addView(table);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_game);
context = this;
// TableLayout table = new TableLayout(this);
// TableRow row1 = new TableRow(this);
// TableRow row2 = new TableRow(this);
// row1.addView(new EditText(this));
// row2.addView(new Button(this));
// table.addView(row1);
// table.addView(row2);
// //table.setBackground(getResources().getDrawable(R.drawable.ic_launcher));
// table.setBackgroundResource(R.drawable.ic_launcher);
// LinearLayout l = (LinearLayout) findViewById(R.id.linear);
// l.addView(table);
drawTable();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_game, menu);
return true;
}
}
XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scrollbars="none"
android:layout_weight="1">
<LinearLayout
android:id="@+id/linear"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical|horizontal">
</LinearLayout>
</ScrollView>
</RelativeLayout>
答案 0 :(得分:6)
您没有使用正确的LayoutParams
,对于表 TableLayout
,您应该设置LinearLayout.LayoutParams
(当您将表格添加到{{1}时}}}并且对于LinearLayout
,TableRows
应该是LayoutParams
(因为他们是TableLayout.LayoutParams
的孩子)。即使进行了上述更改,事情仍然无效,因为TableLayout
是一个对其子项施加约束的小部件,最值得注意的是,TableLayout
的高度将自动设置为WRAP_CONTENT
。改变这种情况的唯一方法是使用TableRows
,如下所示:
weight
但这不起作用,因为您的TableLayout table = new TableLayout(context);
table.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
table.setWeightSum(1.0f);
TableRow[] rows = new TableRow[4];
for(int i = 0; i < 4; ++i){
rows[i] = new TableRow(context);
rows[i].setBackgroundResource(R.drawable.images214);
rows[i].setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT, 0, 0.25f));
table.addView(rows[i]);
}
LinearLayout l = (LinearLayout) findViewById(R.id.linear);
l.addView(table);
设置为填充父级,父级是TableLayout
,不会对其子级施加维度。我不知道你在那里用ScrollView
做什么(特别是你希望桌子填满整个屏幕),所以我不知道推荐你什么。此外,我不知道你的完整布局,但你的嵌套到很多布局。
答案 1 :(得分:1)
对于每个表行设置高度:
DisplayMetrics metrics = context.getResources().getDisplayMetrics();
int height = metrics.heightPixels / 4; // quarter of screen height
rows[i].setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, height));