应用程序名称是Eclipse的MainActivity? [英] App Name is Eclipse MainActivity?
问题描述
我已经完成小费计算器应用程序,但是当我运行它的名字是 MainActivity
,我不知道如何去改变它,我试图修改的strings.xml
但是当我运行该应用程序我得到的错误,我不知道还有什么尝试什么我可以这样做,它出现在模拟器上进行更改,有什么建议
在strings.xml中...
名称: title_activity_main
值: MainActivity
也在这里是我的Java code将我必须在这里改变什么?
包tip.calculator;
进口android.os.Bundle;
进口android.app.Activity;
进口android.view.View.OnClickListener;
进口android.widget.EditText;
进口android.widget.TextView;
进口android.view.View;
进口android.widget.Button;
进口java.text.DecimalFormat中;
公共类TipCalculator扩展活动
{
私人的EditText myEditField;
私人的EditText myEditField2;
私人按钮进入;
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_main);
myEditField2 =(EditText上)findViewById(R.id.billText);
myEditField =(EditText上)findViewById(R.id.percentText);
进入=(按钮)findViewById(R.id.button1);
enter.setOnClickListener(新OnClickListener(){
公共无效的onClick(视图v){
的TextView TextView的;
TextView的=(的TextView)findViewById(R.id.textView1);
最后的EditText myEditField =(EditText上)findViewById(R.id.percentText);
最后的EditText myEditField2 =(EditText上)findViewById(R.id.billText);
浮动比例;
浮动percentageInp;
浮动billAmount;
双输出;
字符串输出1;
percentageInp = Float.parseFloat(myEditField.getText()的toString());
billAmount = Float.parseFloat(myEditField2.getText()的toString());
百分比=((浮点)percentageInp / 100);
输出=(双)(billAmount *百分比);
双重结果=输出* 100;
结果= Math.round(结果);
结果=结果/ 100;
输出1 = Double.toString(结果);
textView.setText(第一路);
}
});
}
}
的manifest.xml ...
<舱单的xmlns:机器人=http://schemas.android.com/apk/res/android
包=tip.calculator
安卓版code =1
机器人:VERSIONNAME =1.0>
<用途-SDK
安卓的minSdkVersion =13
机器人:targetSdkVersion =15/>
<应用
机器人:图标=@可绘制/ ic_launcher
机器人:标签=@字符串/ APP_NAME
机器人:主题=@风格/ AppTheme机器人:可调试=真正的>
<活动
机器人:名称=。TipCalculator
机器人:标签=@字符串/ title_activity_main>
<意向滤光器>
<作用机器人:名称=android.intent.action.MAIN/>
<类机器人:名称=android.intent.category.LAUNCHER/>
&所述; /意图滤光器>
< /活性GT;
< /用途>
< /舱单>
这是我的strings.xml
<资源>
<字符串名称=APP_NAME>小费计算器< /串>
<字符串名称=参考hello world>世界,你好<!/串>
<字符串名称=menu_settings>设置< /串>
<字符串名称=title_activity_main> MainActivity< /串>
< /资源>
更改标签
机器人:标签=小费计算器
或者改变你的strings.xml
<字符串名称=APP_NAME>小费计算器< /串>
<字符串名称=参考hello world>世界,你好<!/串>
<字符串名称=menu_settings>设置< /串>
<字符串名称=title_activity_main>小费计算器< /串>
I have finished a tip calculator app, but when I run it the name is MainActivity
, I don't know how to change it, I have tried editing strings.xml
but when I run the app I get errors,I don't know what else to try, any suggestions for what I can do to change it so it appears on the emulator
on strings.xml...
name:title_activity_main
value:MainActivity
also here is my java code will i have to change anything here?
package tip.calculator;
import android.os.Bundle;
import android.app.Activity;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.TextView;
import android.view.View;
import android.widget.Button;
import java.text.DecimalFormat;
public class TipCalculator extends Activity
{
private EditText myEditField;
private EditText myEditField2;
private Button enter;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myEditField2 = (EditText) findViewById(R.id.billText);
myEditField = (EditText) findViewById(R.id.percentText);
enter = (Button)findViewById(R.id.button1);
enter.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
TextView textView;
textView = (TextView) findViewById(R.id.textView1);
final EditText myEditField = (EditText) findViewById(R.id.percentText);
final EditText myEditField2 = (EditText) findViewById(R.id.billText);
float percentage;
float percentageInp;
float billAmount;
double output;
String output1;
percentageInp = Float.parseFloat(myEditField.getText().toString());
billAmount = Float.parseFloat(myEditField2.getText().toString());
percentage = ((float)percentageInp /100);
output = (double)(billAmount * percentage);
double result = output * 100;
result = Math.round(result);
result = result / 100;
output1 = Double.toString(result);
textView.setText(output1);
}
});
}
}
manifest.xml ...
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="tip.calculator"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="13"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" android:debuggable="true">
<activity
android:name=".TipCalculator"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
here is my strings.xml
<resources>
<string name="app_name">Tip Calculator</string>
<string name="hello_world">Hello world!</string>
<string name="menu_settings">Settings</string>
<string name="title_activity_main">MainActivity</string>
</resources>
change the label
android:label="Tip Calculator"
or change your strings.xml
<string name="app_name">Tip Calculator</string>
<string name="hello_world">Hello world!</string>
<string name="menu_settings">Settings</string>
<string name="title_activity_main">Tip Calculator</string>
这篇关于应用程序名称是Eclipse的MainActivity?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!