不幸的是，AndroidFirst已经停止

Question

我是刚刚开始构建第一个“HelloWorld”应用的Android应用&的初学者。我遵循官方教程和设计模拟器。但是当我运行它时，模拟器说“不幸的是，AndroidFirst已经停止”。我环顾四周，但不同的解决方案没有帮助。我是Android的初学者，因此找不到错误或错误/错误。

以下是logcat的：

08-29 05:16:58.629: W/dalvikvm(1934): VFY: unable to resolve static field 1864 (ActionBarWindow) in Landroid/support/v7/appcompat/R$styleable; 
08-29 05:16:58.629: D/dalvikvm(1934): VFY: replacing opcode 0x62 at 0x0004 
08-29 05:16:58.649: D/AndroidRuntime(1934): Shutting down VM 
08-29 05:16:58.649: W/dalvikvm(1934): threadid=1: thread exiting with uncaught exception (group=0xb1daece8) 
08-29 05:16:58.669: E/AndroidRuntime(1934): FATAL EXCEPTION: main 
08-29 05:16:58.669: E/AndroidRuntime(1934): Process: com.example.androidfirst, PID: 1934 
08-29 05:16:58.669: E/AndroidRuntime(1934): java.lang.NoClassDefFoundError: android.support.v7.appcompat.R$styleable 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:106) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.support.v7.app.ActionBarActivityDelegateICS.onCreate(ActionBarActivityDelegateICS.java:57) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:99) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at com.example.androidfirst.MainActivity.onCreate(MainActivity.java:13) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.app.Activity.performCreate(Activity.java:5242) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2161) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2258) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.app.ActivityThread.access$800(ActivityThread.java:138) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1209) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.os.Handler.dispatchMessage(Handler.java:102) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.os.Looper.loop(Looper.java:136) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at android.app.ActivityThread.main(ActivityThread.java:5026) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at java.lang.reflect.Method.invokeNative(Native Method) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at java.lang.reflect.Method.invoke(Method.java:515) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602) 
08-29 05:16:58.669: E/AndroidRuntime(1934):  at dalvik.system.NativeStart.main(Native Method) 
08-29 05:21:58.843: I/Process(1934): Sending signal. PID: 1934 SIG: 9 

MainActivity.java代码：

package com.example.androidfirst; 

import android.support.v7.app.ActionBarActivity; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 


public class MainActivity extends ActionBarActivity { 

    @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; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 
} 

AndroidManifest.xml中

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.androidfirst" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk 
     android:minSdkVersion="8" 
     android:targetSdkVersion="21" /> 

    <application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <activity 
      android:name=".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> 
    </application> 

</manifest> 

我会很感激你的人！

Answer 1

问题解决了我下载API-19 &时重新创建了AVD。在第一次尝试时，AVD在模拟器上显示“Hello World”默认文本。

Answer 2

对于Android的支持库需要

看到这个图片：

然后，只需导入V7紧凑库项目到您的工作空间，将其作为库添加到您的项目

您可以在sdk\extras\android\support\v7\appcompat中找到它，其中您的SDK存在于目录中。

导入后，选择项目右键 - >属性 - >Android的 - >添加 - >选择应用紧凑

点击确定。