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當我運行應用程序時，第一個活動起作用，但一旦它進入第二個活動，它說尋寶已停止工作，並且logcat或控制檯下沒有任何東西。我很確定這是一個level_1.java的問題，但無法弄清楚什麼。請幫忙謝謝。尋寶已停止工作
主要活動：
package com.example.treasurehunt;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.util.Log;
import android.view.Menu;
import android.view.View;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void Start(View view) {
Log.d("hi", "hello");
Intent intent = new Intent(this, Level_1.class);
startActivity(intent);
finish();
}
}
Mainxml：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="Treasure Hunt" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="82dp"
android:text="Start"
android:onClick="Start" />
</RelativeLayout>
`
level_1java：
package com.example.treasurehunt;
import android.os.Bundle;
import android.app.Activity;
import android.content.SharedPreferences;
import android.util.Log;
import android.view.Menu;
import android.widget.EditText;
import android.widget.TextView;
public class Level_1 extends Activity {
private SharedPreferences settings;
private SharedPreferences.Editor editor;
TextView Clue = (TextView)findViewById(R.id.Clue);
EditText edittext = (EditText)findViewById(R.id.editText);
String hint;
String answer;
@Override
protected void onCreate(Bundle savedInstanceState) {
Log.d("hi","hello");
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_level_1);
int level = settings.getInt("level", 1);
switch (level) {
case 1: level1();
break;
default:
break;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.level_1, menu);
return true;
}
public void level1() {
editor.putInt("level", 1); // only needs to be done for level 1
editor.commit();
Clue.setText("Bartholdi was my creator, I carry fire and knowledge, what am I?");
hint = "July IV MDCCLXXVI";
answer = "statue of liberty";
}
public void answer() {
String useranswer = edittext.toString();
if (useranswer.equalsIgnoreCase(answer)) {// if they get the correct answer
int leveltest = settings.getInt("level", 1);
editor.putInt("level", leveltest+1); //adds one level to the current level
editor.commit();
}
}
public void hint() { //function that displays the hint
}
}
LEVEL_1 XML：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".Level_1" >
<TextView
android:id="@+id/Clue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="116dp"
android:text="Clue" />
<EditText
android:id="@+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/Clue"
android:layout_centerHorizontal="true"
android:layout_marginTop="80dp"
android:ems="10" >
<requestFocus />
</EditText>
<Button
android:id="@+id/Submit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignRight="@+id/editText"
android:layout_marginBottom="50dp"
android:text="Submit"
android:onClick="answer"/>
<Button
android:id="@+id/Hint"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/Submit"
android:layout_alignBottom="@+id/Submit"
android:layout_alignLeft="@+id/editText"
android:text="Hint"
android:onClick="Hint"/>
</RelativeLayout>
清單：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.treasurehunt"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.treasurehunt.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.treasurehunt.Level_1"
android:label="@string/title_activity_level_1" >
</activity>
</application>
</manifest>
你能後的logcat的輸出？ – ashatte
我的日誌貓不顯示任何東西 – koochi10
哦對了，對不起，你確實提到了... – ashatte