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我刚刚在android开发中有新意。实际上，我是在今天下午早些时候开始的。我遵循此链接中的说明。最简单的HELLO WORLD不能在仿真器上工作
https://developer.android.com/training/basics/firstapp/creating-project.html
我只是将其重命名为hello2。
除了当我试图在AVD中运行它时，一切似乎都很完美。我的logcat不断弹出一些错误。仿真器显示“不幸的是，hello2已停止。”
有人可以帮我吗？
这是我的java文件
package com.example.hello2;
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);
}
}
这是我的清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.hello2"
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>
，这是我的logcat：
07-20 13:22:25.760: W/dalvikvm(960): threadid=1: thread exiting with uncaught exception (group=0xb3af1d70)
07-20 13:22:25.780: E/AndroidRuntime(960): FATAL EXCEPTION: main
07-20 13:22:25.780: E/AndroidRuntime(960): Process: com.example.hello2, PID: 960
07-20 13:22:25.780: E/AndroidRuntime(960): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.hello2/com.example.hello2.MainActivity}: android.util.AndroidRuntimeException: You cannot combine swipe dismissal and the action bar.
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2197)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2258)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.ActivityThread.access$800(ActivityThread.java:138)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1209)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.os.Handler.dispatchMessage(Handler.java:102)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.os.Looper.loop(Looper.java:136)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.ActivityThread.main(ActivityThread.java:5026)
07-20 13:22:25.780: E/AndroidRuntime(960): at java.lang.reflect.Method.invokeNative(Native Method)
07-20 13:22:25.780: E/AndroidRuntime(960): at java.lang.reflect.Method.invoke(Method.java:515)
07-20 13:22:25.780: E/AndroidRuntime(960): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
07-20 13:22:25.780: E/AndroidRuntime(960): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
07-20 13:22:25.780: E/AndroidRuntime(960): at dalvik.system.NativeStart.main(Native Method)
07-20 13:22:25.780: E/AndroidRuntime(960): Caused by: android.util.AndroidRuntimeException: You cannot combine swipe dismissal and the action bar.
07-20 13:22:25.780: E/AndroidRuntime(960): at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:275)
07-20 13:22:25.780: E/AndroidRuntime(960): at com.android.internal.policy.impl.PhoneWindow.generateLayout(PhoneWindow.java:2872)
07-20 13:22:25.780: E/AndroidRuntime(960): at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:3129)
07-20 13:22:25.780: E/AndroidRuntime(960): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:303)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.Activity.setContentView(Activity.java:1930)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.support.v7.app.ActionBarActivity.superSetContentView(ActionBarActivity.java:217)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.support.v7.app.ActionBarActivityDelegateICS.setContentView(ActionBarActivityDelegateICS.java:110)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:77)
07-20 13:22:25.780: E/AndroidRuntime(960): at com.example.hello2.MainActivity.onCreate(MainActivity.java:13)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.Activity.performCreate(Activity.java:5242)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
07-20 13:22:25.780: E/AndroidRuntime(960): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2161)
07-20 13:22:25.780: E/AndroidRuntime(960): ... 11 more
我希望有人能帮助我..
PS：s对于英语不好的人来说。
你读过日志吗？ – PeeHaa
尝试从清单中移除targetsdkVersion。 – Simon
http://stackoverflow.com/a/24501639/115145 – CommonsWare