Tablerow高度没变?

时间:2012-11-18 21:17:19

标签: android android-4.0-ice-cream-sandwich tablerow android-tablelayout layoutparams

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>

2 个答案:

答案 0 :(得分:6)

您没有使用正确的LayoutParams,对于 TableLayout,您应该设置LinearLayout.LayoutParams(当您将表格添加到{{1}时}}}并且对于LinearLayoutTableRows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));