gridlaylout简单布局idlayout;
import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.widget.Button;
import android.widget.GridLayout;
public class MainGrid extends Activity {
GridLayout grd;
String[] chas=new String[]
{
"7","8","9","*"
,
"4","5","6","/"
,"1","2","3","+"
,"0",".","=","-"
};
@Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.activity_main_grid);
grd=(GridLayout)findViewById();
for(int i=0;i<chas.length;i++)
{
Button bt=new Button(this);
bt.setText(chas[i]);
bt.setTextSize(40);
bt.setHeight(200);
GridLayout.Spec rowSpec = GridLayout.spec(i / 4 + 2);
// 指定该组件所在列
GridLayout.Spec columnSpec = GridLayout.spec(i % 4);
GridLayout.LayoutParams params = new GridLayout.LayoutParams(
rowSpec , columnSpec);
// 指定该组件占满⽗容器
params.setGravity(Gravity.FILL);
grd.addView(bt , params);
}
}
}
<?xml version="1.0" encoding="utf-8" ?>
<GridLayout xmlns:android="schemas.android/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:rowCount="6"
android:columnCount="4"
android:id="@+id/root"
>
<!-- 定义⼀个横跨4列的⽂本框，
并设置该⽂本框的前景⾊、背景⾊等属性  -->
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_columnSpan="4"
android:textSize="50sp"
android:layout_marginLeft="4px"
android:layout_marginRight="4px"
android:padding="5px"
android:layout_gravity="right"
android:background="#eee"
android:textColor="#000"
android:text="0"/>
<!-- 定义⼀个横跨4列的按钮 -->
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_columnSpan="4"
android:text="清除"/>
</GridLayout>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="schemas.android/apk/res/android"
package="idlayout"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="17"
android:targetSdkVersion="21"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name=".MainGrid"
android layout布局android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>

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