Android 体重测仪器开发

核心提示：et = (EditText) findViewById(R.id.height);double height=Double.parseDouble(et.getText().toString());/*取得选择的性别*/String sex="";rb1 = (RadioButton) findV

et = (EditText) findViewById(R.id.height);

double height=Double.parseDouble(et.getText().toString());

/*取得选择的性别*/

String sex="";

rb1 = (RadioButton) findViewById(R.id.sex1);

rb2 = (RadioButton) findViewById(R.id.sex2);

if(rb1.isChecked())

{

sex="M";

}

else

{

sex="F";

}

/*new一个Intent对象，并指定class*/

Intent intent = new Intent();

intent.setClass(EX03_11.this,EX03_11_1.class);

/*new一个Bundle对象，并将要传递的数据传入*/

Bundle bundle = new Bundle();

bundle.putDouble("height",height);

bundle.putString("sex",sex);

/*将Bundle对象assign给Intent*/

intent.putExtras(bundle);

/*调用Activity EX03_11_1*/

startActivityForResult(intent,0);

}

});

}

/* 覆盖 onActivityResult()*/

@Override

protected void onActivityResult(int requestCode, int resultCode,

Intent data)

{

switch (resultCode)

{

case RESULT_OK:

/* 取得来自Activity2的数据，并显示于画面上 */

Bundle bunde = data.getExtras();

String sex = bunde.getString("sex");

double height = bunde.getDouble("height");

et.setText(""+height);

if(sex.equals("M"))

{

rb1.setChecked(true);

}

else

{

rb2.setChecked(true);

}

break;

default:

break;

}

}

}

Java代码

package irdc.ex03_11;

/* import相关class */

import java.text.DecimalFormat;

import java.text.NumberFormat;

import android.app.Activity;

import android.content.Intent;