Евг*_*нов 4 android android-actionbar android-support-library android-actionbar-compat
**我建议使用ActionBar Activity**这是以前的代码
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
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我写了新的申请并遵循了建议.
import android.os.Bundle;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
public class MainActivity extends ActionBarActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ActionBar actionBar =getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
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如果我使用ACtionBarActivity而不是Activity
我在手机上捕获错误消息,当我尝试运行它时.
请告诉我我做错了什么
来自Logcat的信息
07-27 15:14:19.942: I/Process(21715): Sending signal. PID: 21715 SIG: 9
07-27 15:34:38.521: W/dalvikvm(23579): Unable to resolve superclass of Lcom/example/project/MainActivity; (532)
07-27 15:34:38.521: W/dalvikvm(23579): Link of class 'Lcom/example/project/MainActivity;' failed
07-27 15:34:38.521: D/AndroidRuntime(23579): Shutting down VM
07-27 15:34:38.521: W/dalvikvm(23579): threadid=1: thread exiting with uncaught exception (group=0x40ae5210)
07-27 15:34:38.521: E/AndroidRuntime(23579): FATAL EXCEPTION: main
07-27 15:34:38.521: E/AndroidRuntime(23579): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.project/com.example.project.MainActivity}: java.lang.ClassNotFoundException: com.example.project.MainActivity
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1891)
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.access$600(ActivityThread.java:127)
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.os.Handler.dispatchMessage(Handler.java:99)
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.os.Looper.loop(Looper.java:137)
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.main(ActivityThread.java:4441)
07-27 15:34:38.521: E/AndroidRuntime(23579): at java.lang.reflect.Method.invokeNative(Native Method)
07-27 15:34:38.521: E/AndroidRuntime(23579): at java.lang.reflect.Method.invoke(Method.java:511)
07-27 15:34:38.521: E/AndroidRuntime(23579): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
07-27 15:34:38.521: E/AndroidRuntime(23579): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
07-27 15:34:38.521: E/AndroidRuntime(23579): at dalvik.system.NativeStart.main(Native Method)
07-27 15:34:38.521: E/AndroidRuntime(23579): Caused by: java.lang.ClassNotFoundException: com.example.project.MainActivity
07-27 15:34:38.521: E/AndroidRuntime(23579): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
07-27 15:34:38.521: E/AndroidRuntime(23579): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
07-27 15:34:38.521: E/AndroidRuntime(23579): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1882)
07-27 15:34:38.521: E/AndroidRuntime(23579): ... 11 more
07-27 15:34:38.531: I/Process(23579): Sending signal. PID: 23579 SIG: 9
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编辑和导出截图 http://i.stack.imgur.com/MNfc1.jpg
1-7的截图
在我的应用程序项目中将"Android私有库"和"Android依赖项"移动到Order and Export列表的顶部之后,我已经完成了它.此外,我在这个列表中没有android-support-v7-appcompat.在android-support-v7-appcompat项目中,我在订单和导出列表中没有支持jar,但是检查了"Android Private Libraries".请检查以下链接:
使用Android中的ActionBarCompat支持库实现Action Bar
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