Android GridLayout 表格布局

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GridLayout表格布局以行x列的形式管理UI组件，

XML
android:columnCount="5" //设置列数 
android:rowCount="5"//设置行数
android:layout_columnSpan="4" //横向跨几列
android:layout_rowSpan="4"

代码

mGridLayout.setColumnCount(int);//设置列数 
mGridLayout.setRowCount(int);//设置行数




package shortcut.song.com.myapplication;import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Gravity;
import android.widget.Button;
import android.widget.GridLayout;public class GridLayoutActivity extends AppCompatActivity {GridLayout mGridLayout;String[]  chars = new String[]{"7", "8", "9", "/","4", "5", "6", "*","1", "2", "3", "-",".", "0", "=", "+"
            };@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_grid_layout);mGridLayout = (GridLayout)findViewById(R.id.gridlayout1);for( int i=0; i<chars.length; i++ ){Button btn = new Button(this);btn.setText(chars[i]);btn.setTextSize(40);btn.setMinWidth(30);btn.setPadding(5, 35, 5, 35);//指定该组件所在的行
            GridLayout.Spec rowSpec = GridLayout.spec(i / 4 + 2);//指定该组件所在的列
            GridLayout.Spec columnSpec = GridLayout.spec(i % 4);GridLayout.LayoutParams params = new GridLayout.LayoutParams(rowSpec, columnSpec);params.setGravity(Gravity.FILL);mGridLayout.addView(btn, params);}}
}

<?xml version="1.0" encoding="utf-8"?>
<GridLayout 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"
    android:columnCount="4"
    android:rowCount="6"
    android:id="@+id/gridlayout1"
    ><TextView
        android:id="@+id/val_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_columnSpan="4"
        android:layout_marginLeft="2pt"
        android:layout_marginRight="2pt"
        android:layout_gravity="right"
        android:padding="3pt"
        android:text="0"
        /><Button
        android:id="@+id/clear_btn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_columnSpan="4"
        android:text="Clear"
        />
</GridLayout>