“我的菜谱“APP--添加菜谱功能的实现

1.这个是AddMenuActivity.java对应的addmenu_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mymenu"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/hua" >

<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#666666"
android:orientation="horizontal" >

<Button
android:id="@+id/sscp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="搜索菜谱" >
</Button>

<Button
android:id="@+id/ckcp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:layout_weight="1"
android:text="查看菜谱" />

<Button
android:id="@+id/tjcp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="添加菜谱" />
</LinearLayout>

<TextView
android:id="@+id/caixi"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/caiming"
android:layout_below="@+id/caiming"
android:layout_marginTop="23dp"
android:text="菜系："
android:textAppearance="?android:attr/textAppearanceLarge" />

<TextView
android:id="@+id/pengrenfangfa"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/caixi"
android:layout_below="@+id/caixi"
android:layout_marginTop="22dp"
android:text="烹饪方法:"
android:textAppearance="?android:attr/textAppearanceLarge" />

<TextView
android:id="@+id/caiming"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/linearLayout1"
android:layout_marginLeft="20dp"
android:layout_marginTop="108dp"
android:text="菜名:"
android:textAppearance="?android:attr/textAppearanceLarge" />

<EditText
android:id="@+id/foodClassification"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/pengrenfangfa"
android:layout_alignLeft="@+id/foodname"
android:ems="10" />

<EditText
android:id="@+id/describe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/pengrenfangfa"
android:layout_alignRight="@+id/add"
android:layout_below="@+id/pengrenfangfa"
android:ems="10"
android:inputType="textMultiLine" >

<requestFocus />
</EditText>

<EditText
android:id="@+id/foodname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/caixi"
android:layout_toRightOf="@+id/caixi"
android:ems="10" />

<Button
android:id="@+id/add"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/foodname"
android:layout_alignRight="@+id/foodname"
android:layout_marginRight="30dp"
android:text="添加" />

</RelativeLayout>2.AddMenuActivity.java
package com.androidhomework.caipu;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class AddMenuActivity extends Activity {

protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.addmenu_activity);<pre name="code" class="java">

<pre name="code" class="java">

//当点击添加键的时候，处理btnsave，给btnsave建立一个监听器，然后进行setOnClickListener中的操作

Button btnsave = (Button)findViewById(R.id.add); // 点击桌面上方的“添加”键btnsave.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubEditText editTName = (EditText) findViewById(R.id.foodname); //当处理的是foodname的时候，处理对象起名叫editTname；foodname是"菜名:"后头的空格EditText
editTClassification = (EditText) findViewById(R.id.foodClassification);//当处理的是fooClassfication的时候，处理对象叫editTClassfication；EditText editTDescribe = (EditText) findViewById(R.id.describe);//当处理的是食物描述的时候，处理对象起名叫editTDescribeString fooname = editTName.getText().toString();
//String类型的foodname，值为editTName刚刚输入的对象。String foodClassification = editTClassification.getText().toString();String describe = editTDescribe.getText().toString();DBFood food = new DBFood(fooname,foodClassification,describe);//新建一个DBFood类型的对象food，将刚刚3个值传进来DBFoodService
db = new DBFoodService(AddMenuActivity.this);//新建一个DBFoodService类型的对象db，将增删改查（DBFoodService中定义）应用到AddMeunActivity.this上db.Add(food); //把上面的添加到数据库里，调用DBFoodService里的add方法。//db调用Add()方法将刚刚的food参数添加到数据库// Intent i = new Intent(AddMenuActivity.this, MainActivity.class);//
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);// startActivity(i);// finish();}});gotoMain();}public void gotoMain(){Button bOk1=(Button)this.findViewById(R.id.sscp);bOk1.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Intent intent=new
Intent(AddMenuActivity.this,SearchActivity.class); //如果点击的是搜索菜谱，则不变。startActivity(intent);finish();}});Button bOk2=(Button)this.findViewById(R.id.ckcp);bOk2.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Log.d("Caipu", "cha
kan cai pu");////////////？？？？这句是干嘛的？Intent intent=new Intent(AddMenuActivity.this,LookupMenuActivity.class); //如果点击的是查看菜谱，跳到查看菜谱startActivity(intent);finish();}});Button bOk3=(Button)this.findViewById(R.id.tjcp);bOk3.setOnClickListener(new OnClickListener()
{@Overridepublic void onClick(View v) {Intent intent=new Intent(AddMenuActivity.this,AddMenuActivity.class); //创建Intent对象startActivity(intent);finish();}});}}

以上就完成了对数据库的添加。