本文實例為大家分享了Android實現計算器界面的具體代碼，供大家參考，具體內容如下

XML文件：

<?xml version='1.0' encoding='utf-8'?><GridLayout xmlns:android='http://schemas.android.com/apk/res/android' android:orientation='vertical' android:layout_width='match_parent' android:layout_height='match_parent' android:rowCount='6' android:columnCount='4' android:id='@+id/root'> <TextView android:layout_width='match_parent' android:layout_height='wrap_content' android:layout_columnSpan='4' android:textSize='50sp' android:layout_marginLeft='2pt' android:layout_marginRight='2pt' android:padding='3pt' android:layout_gravity='right' android:background='#eee' android:textColor='#000' android:text='0' /> <Button android:layout_width='match_parent' android:layout_height='wrap_content' android:layout_columnSpan='4' android:text='清除'/> </GridLayout>

MainActivity:

package learn.li.com.learnthree; import android.os.Handler;import android.os.Message;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.Gravity;import android.widget.Button;import android.widget.GridLayout;import android.widget.TextView; import java.util.Timer;import java.util.TimerTask; public class MainActivity extends AppCompatActivity { GridLayout gridLayout; String[] chars = new String[]{ '7','8','9','÷', '4','5','6','x', '1','2','3','-', '.','0','=','=' }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); gridLayout = (GridLayout)findViewById(R.id.root); for(int i = 0;i < chars.length;i++){ Button bn = new Button(this); bn.setText(chars[i]); bn.setTextSize(40); bn.setPadding(5,35,5,35); GridLayout.Spec rowSpec = GridLayout.spec(i/4 + 2); GridLayout.Spec columnSpec = GridLayout.spec(i%4); GridLayout.LayoutParams params = new GridLayout.LayoutParams(rowSpec,columnSpec); params.setGravity(Gravity.FILL); gridLayout.addView(bn,params); } }}

效果：

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持好吧啦網。