我试图让用户填写我EditText
的价格......即"20.00"
并从该编辑文本中获取值作为字符串。然后将该字符串用作要作为值上传到"Price"
键下的“我的服务器”又名 parse.com 的数据。每当我运行我的模拟器,填写"20.00"
编辑文本并检查我的服务器时,一个新条目永远不会弹出。我的 logcat 返回:
03-23 21:14:20.607: V/EditText(1697): 20.00
如果我在上面创建另一个字符串并简单地给它一个值。然后把它放在"Price"
钥匙下面而不是myString
运行模拟器,我的服务器会收到这个,一切都会锻炼。
由于在键下设置的值"Price"
是一个字符串,并且我的 logcatEditText
在我使用时返回 an myString
,这让我相信我使用的是 anEditText
而不是 aString
即使我已经查找了多个教程/答案,所有这些都是为了从您必须使用的编辑文本中获取字符串:
price = (EditText) findViewById(R.id.editText1);
String newString = price.getText().toString();
我在我的代码中有。
另外,我上面有两个SearchView
s 和两个ListView
s 具有搜索功能,所以我的代码有点长。我的代码根本没有出错,除了这个小问题之外它工作得很好。
TapDeal.java
- 问题类:
package com.alpha.dealtap;
import java.util.ArrayList;
import java.util.HashMap;
import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import com.parse.Parse;
import com.parse.ParseObject;
public class TapDeal extends Activity {
Button b1;
String newString;
// List view
private ListView lv;
private ListView lv2;
// Listview Adapter
ArrayAdapter<String> adapter;
ArrayAdapter<String> adapter2;
// Search EditText
EditText inputSearch;
EditText inputSearch2;
EditText price;
// ArrayList for Listview
ArrayList<HashMap<String, String>> productList;
ArrayList<HashMap<String, String>> productList2;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.tapdeal);
// Listview Data
String products[] = { "Dubra", "Keystone Light", "Keystone",
"Smirnoff", "Jack Daniels", "Captain Morgan", "Grey Goose",
"Burnetts", "Kettle One", "Corona", "Franzia", "Budweiser" };
String size[] = { "6 Pack", "12 Pack", "30 Pack", "750ml", "Handle",
"1 liter", "3 Liter Box", "Half Pint", "1 Pint" };
lv = (ListView) findViewById(R.id.list_view);
lv2 = (ListView) findViewById(R.id.list_view2);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch2 = (EditText) findViewById(R.id.inputSearch2);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.listitem,
R.id.product_name, products);
adapter2 = new ArrayAdapter<String>(this, R.layout.size, R.id.size,
size);
lv.setAdapter(adapter);
lv2.setAdapter(adapter2);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2,
int arg3) {
// When user changed the Text
TapDeal.this.adapter.getFilter().filter(cs);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
inputSearch2.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
// TODO Auto-generated method stub
TapDeal.this.adapter2.getFilter().filter(s);
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
b1 = (Button) findViewById(R.id.button1);
price = (EditText) findViewById(R.id.editText1);
String newString = price.getText().toString();
Parse.initialize(this, "xxxx", "yyyy");
ParseObject dealinfo = new ParseObject("Deals");
dealinfo.put("Brand", "Budweiser");
dealinfo.put("Size", "6");
dealinfo.put("Price", newString);
dealinfo.saveInBackground();
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Log.v("EditText", price.getText().toString());
}
});
}
}
("xxxx"
并且"yyyy"
是我的私钥)。
tapdeal.xml
:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<!-- Editext for Search -->
<EditText
android:id="@+id/inputSearch"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Brand of Alcohol"
android:inputType="textVisiblePassword" />
<!-- List View -->
<ListView
android:id="@+id/list_view"
android:layout_width="fill_parent"
android:layout_height="52dp" />
<EditText
android:id="@+id/inputSearch2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:hint="Enter the Size"
android:inputType="textVisiblePassword" />
<ListView
android:id="@+id/list_view2"
android:layout_width="fill_parent"
android:layout_height="54dp"
android:layout_weight="0.16" />
<EditText
android:id="@+id/editText1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:ems="10"
android:hint="Enter the Price"
android:inputType="numberDecimal" />
<Button
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="90dp"
android:text="Tap it"
android:textSize="23dp" />
</LinearLayout>
显现:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.alpha.dealtap"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".Main"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.alpha.dealtap.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Search_Page"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.alpha.dealtap.SEARCH_PAGE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".DealPage"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.alpha.dealtap.DEALPAGE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".StorePage"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.alpha.dealtap.STOREPAGE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Map"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.alpha.dealtap.MAP" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".TapDeal"
android:label="TapDeal"
android:windowSoftInputMode="stateHidden" >
<intent-filter>
<action android:name="com.alpha.dealtap.TAPDEAL" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
感谢您的帮助!