模拟器停止工作

时间:2014-05-07 07:01:49

标签: android eclipse android-layout

我是android编程的新手

我正在尝试执行我从here撰写的应用,

但我无法运行该应用。当我尝试运行应用程序时,模拟器会显示

  

Abc(app name)突然停止工作

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="horizontal">
<EditText android:id="@+id/edit_message"
    android:layout_weight="1"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:hint="@string/edit_message" />
<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/button_send"
    android:onClick="sendMessage"
    />
</LinearLayout>

MainActivity.java

package com.xyz.abc;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;

public class MainActivity extends ActionBarActivity {

private static final String EXTRA_MESSAGE = "com.xyz.Abc.MESSAGE";


/** Called when the user clicks the Send button */
public void sendMessage(View view) {
    // Do something in response to button

    Intent intent = new Intent(this, DisplayMessageActivity.class);
    EditText editText = (EditText) findViewById(R.id.edit_message);
    String message = editText.getText().toString();
    intent.putExtra(EXTRA_MESSAGE, message);
    startActivity(intent);
}

@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;
}

}

DisplayMessageActivity.java

 package com.xyz.abc;

 import android.support.v7.app.ActionBarActivity;
 import android.support.v7.app.ActionBar;
 import android.support.v4.app.Fragment;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.os.Build;

 public class DisplayMessageActivity extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_display_message);

    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction()
            .add(R.id.container, new PlaceholderFragment()).commit();
    }
}

@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);
}

/**
 * A placeholder fragment containing a simple view.
 */
public static class PlaceholderFragment extends Fragment {

    public PlaceholderFragment() { }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
              Bundle savedInstanceState) {
          View rootView = inflater.inflate(R.layout.fragment_display_message,
                  container, false);
          return rootView;
    }
}
}

fragment_display_message.xml

<LinearLayout 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="com.xyz.abc.DisplayMessageActivity$PlaceholderFragment" >

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/edit_message" />

</LinearLayout>
下面的

是错误的logcat输出。

  

05-07 06:11:21.004:D / AndroidRuntime(1143):关闭虚拟机       05-07 06:11:21:2004:W / dalvikvm(1143):threadid = 1:线程退出未捕获异常(group = 0xb2aabba8)       05-07 06:11:21.134:E / AndroidRuntime(1143):致命异常:主要       05-07 06:11:21.134:E / AndroidRuntime(1143):进程:com.xyz.abc,PID:1143       05-07 06:11:21.134:E / AndroidRuntime(1143):java.lang.RuntimeException:无法启动活动   ComponentInfo {} com.xyz.abc/com.xyz.abc.MainActivity:   java.lang.IllegalStateException:您需要使用Theme.AppCompat   主题(或后代)与此活动。       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.app.ActivityThread.access $ 800(ActivityThread.java:135)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1196)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.os.Handler.dispatchMessage(Handler.java:102)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.os.Looper.loop(Looper.java:136)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.app.ActivityThread.main(ActivityThread.java:5017)       05-07 06:11:21.134:E / AndroidRuntime(1143):at java.lang.reflect.Method.invokeNative(Native Method)       05-07 06:11:21.134:E / AndroidRuntime(1143):at java.lang.reflect.Method.invoke(Method.java:515)       05-07 06:11:21.134:E / AndroidRuntime(1143):at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:779)       05-07 06:11:21.134:E / AndroidRuntime(1143):at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)       05-07 06:11:21.134:E / AndroidRuntime(1143):at dalvik.system.NativeStart.main(Native Method)       05-07 06:11:21.134:E / AndroidRuntime(1143):引起:java.lang.IllegalStateException:你需要使用Theme.AppCompat   主题(或后代)与此活动。       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:108)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.support.v7.app.ActionBarActivityDelegateICS.onCreate(ActionBarActivityDelegateICS.java:57)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:98)       05-07 06:11:21.134:E / AndroidRuntime(1143):at com.xyz.abc.MainActivity.onCreate(MainActivity.java:29)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.app.Activity.performCreate(Activity.java:5231)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)       05-07 06:11:21.134:E / AndroidRuntime(1143):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)       05-07 06:11:21.134:E / AndroidRuntime(1143):......还有11个       05-07 06:11:29.494:I / Process(1143):发送信号。 PID:1143 SIG:9

1 个答案:

答案 0 :(得分:0)

You need to use a Theme.AppCompat theme (or descendant) with this activity.

这就是您的应用崩溃的原因。查看您的清单,找到您的活动或应用程序的主题,并确保它扩展了一些AppCompat主题,例如。最新Android Studio中的自动生成项目如下:
的AndroidManifest.xml

<application
       ...
 android:theme="@style/AppTheme">

<强> styles.xml

 <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
       ...
 </style>