你好，我创建了我的第一个“Hello World”应用程序，并按照 developer.android 上发布的说明进行操作。但是当我连接启用调试功能的 Sony Xperia S 并运行我的应用程序时，我在 logcat 中看到错误信息，说“E/(4446): Can't open file for reading”。我正在使用 Eclipse 的 ADT 插件。
package com.example.myfirstapp;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MyMainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_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.activity_my_main, menu);
return true;
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myfirstapp"
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.myfirstapp.MyMainActivity"
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>
<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"
tools:context=".MyMainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world" />
</RelativeLayout>
请问是什么原因引起的“无法打开文件”错误呢？感谢您的支持，以下是完整的logcat堆栈信息。
04-08 12:20:07.350: D/TextLayoutCache(4446): Using debug level: 0 - Debug Enabled: 0
04-08 12:20:07.420: D/libEGL(4446): loaded /system/lib/egl/libGLES_android.so
04-08 12:20:07.420: D/libEGL(4446): loaded /system/lib/egl/libEGL_adreno200.so
04-08 12:20:07.430: D/libEGL(4446): loaded /system/lib/egl/libGLESv1_CM_adreno200.so
04-08 12:20:07.440: D/libEGL(4446): loaded /system/lib/egl/libGLESv2_adreno200.so
04-08 12:20:07.460: I/Adreno200-EGLSUB(4446): <ConfigWindowMatch:2078>: Format RGBA_8888.
04-08 12:20:07.470: D/memalloc(4446): /dev/pmem: Mapped buffer base:0x5c63d000 size:3768320 offset:0 fd:64
04-08 12:20:07.480: E/(4446): Can't open file for reading
04-08 12:20:07.480: E/(4446): Can't open file for reading
04-08 12:20:07.480: D/OpenGLRenderer(4446): Enabling debug mode 0
04-08 12:20:07.550: D/memalloc(4446): /dev/pmem: Mapped buffer base:0x5ce2c000 size:33538048 offset:29769728 fd:67
04-08 12:20:33.110: D/OpenGLRenderer(4446): Flushing caches (mode 0)
04-08 12:20:33.130: D/memalloc(4446): /dev/pmem: Unmapping buffer base:0x5c63d000 size:3768320 offset:0
04-08 12:20:33.130: D/memalloc(4446): /dev/pmem: Unmapping buffer base:0x5ce2c000 size:33538048 offset:29769728
04-08 12:20:33.140: D/OpenGLRenderer(4446): Flushing caches (mode 1)