我正在开发一个我已经在 Android 版本 4.2.2 和 4.3 上成功测试过的 Android 应用程序，但由于该应用程序还需要广泛的兼容性，我还尝试使用 Gingerbread 2.3.6 对其进行测试，但它崩溃了。使用的库是 android-support-v4 和 v7 应用程序 tomcat 以及 google-play-services。
这是显示的 logcat 日志：
11-04 10:20:54.736: W/dalvikvm(17136): Link of class 'Ldk/thesweetapps/vejviseraktivgravid/MainActivity;' failed
11-04 10:20:54.736: E/dalvikvm(17136): Could not find class 'dk.thesweetapps.vejviseraktivgravid.MainActivity', referenced from method dk.thesweetapps.vejviseraktivgravid.SplashScreen$1.run
11-04 10:20:54.736: W/dalvikvm(17136): VFY: unable to resolve const-class 1319 (Ldk/thesweetapps/vejviseraktivgravid/MainActivity;) in Ldk/thesweetapps/vejviseraktivgravid/SplashScreen$1;
11-04 10:20:54.736: D/dalvikvm(17136): VFY: replacing opcode 0x1c at 0x0004
11-04 10:20:54.736: D/dalvikvm(17136): VFY: dead code 0x0006-0013 in Ldk/thesweetapps/vejviseraktivgravid/SplashScreen$1;.run ()V
11-04 10:20:56.740: W/dalvikvm(17136): threadid=1: thread exiting with uncaught exception (group=0x40015578)
11-04 10:20:56.748: E/AndroidRuntime(17136): FATAL EXCEPTION: main
11-04 10:20:56.748: E/AndroidRuntime(17136): java.lang.NoClassDefFoundError: dk.thesweetapps.vejviseraktivgravid.MainActivity
11-04 10:20:56.748: E/AndroidRuntime(17136): at dk.thesweetapps.vejviseraktivgravid.SplashScreen$1.run(SplashScreen.java:26)
11-04 10:20:56.748: E/AndroidRuntime(17136): at android.os.Handler.handleCallback(Handler.java:587)
11-04 10:20:56.748: E/AndroidRuntime(17136): at android.os.Handler.dispatchMessage(Handler.java:92)
11-04 10:20:56.748: E/AndroidRuntime(17136): at android.os.Looper.loop(Looper.java:130)
11-04 10:20:56.748: E/AndroidRuntime(17136): at android.app.ActivityThread.main(ActivityThread.java:3687)
11-04 10:20:56.748: E/AndroidRuntime(17136): at java.lang.reflect.Method.invokeNative(Native Method)
11-04 10:20:56.748: E/AndroidRuntime(17136): at java.lang.reflect.Method.invoke(Method.java:507)
11-04 10:20:56.748: E/AndroidRuntime(17136): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
11-04 10:20:56.748: E/AndroidRuntime(17136): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
11-04 10:20:56.748: E/AndroidRuntime(17136): at dalvik.system.NativeStart.main(Native Method)
11-04 10:26:01.459: I/Process(17136): Sending signal. PID: 17136 SIG: 9
11-04 10:27:39.236: W/dalvikvm(17338): threadid=1: thread exiting with uncaught exception (group=0x40015578)
11-04 10:27:39.248: E/AndroidRuntime(17338): FATAL EXCEPTION: main
11-04 10:27:39.248: E/AndroidRuntime(17338): java.lang.NoClassDefFoundError: dk.thesweetapps.vejviseraktivgravid.MainActivity
11-04 10:27:39.248: E/AndroidRuntime(17338): at dk.thesweetapps.vejviseraktivgravid.SplashScreen$1.run(SplashScreen.java:26)
11-04 10:27:39.248: E/AndroidRuntime(17338): at android.os.Handler.handleCallback(Handler.java:587)
11-04 10:27:39.248: E/AndroidRuntime(17338): at android.os.Handler.dispatchMessage(Handler.java:92)
11-04 10:27:39.248: E/AndroidRuntime(17338): at android.os.Looper.loop(Looper.java:130)
11-04 10:27:39.248: E/AndroidRuntime(17338): at android.app.ActivityThread.main(ActivityThread.java:3687)
11-04 10:27:39.248: E/AndroidRuntime(17338): at java.lang.reflect.Method.invokeNative(Native Method)
11-04 10:27:39.248: E/AndroidRuntime(17338): at java.lang.reflect.Method.invoke(Method.java:507)
11-04 10:27:39.248: E/AndroidRuntime(17338): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
11-04 10:27:39.248: E/AndroidRuntime(17338): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
11-04 10:27:39.248: E/AndroidRuntime(17338): at dalvik.system.NativeStart.main(Native Method)
11-04 10:32:42.724: I/Process(17338): Sending signal. PID: 17338 SIG: 9
11-04 10:36:34.705: D/dalvikvm(17486): GC_EXTERNAL_ALLOC freed 56K, 48% free 2838K/5379K, external 1596K/2108K, paused 22ms
11-04 10:36:34.771: I/dalvikvm(17486): Failed resolving Ldk/thesweetapps/vejviseraktivgravid/MainActivity; interface 12 'Landroid/app/ActionBar$TabListener;'
11-04 10:36:34.771: W/dalvikvm(17486): Link of class 'Ldk/thesweetapps/vejviseraktivgravid/MainActivity;' failed
11-04 10:36:34.771: E/dalvikvm(17486): Could not find class 'dk.thesweetapps.vejviseraktivgravid.MainActivity', referenced from method dk.thesweetapps.vejviseraktivgravid.SplashScreen$1.run
11-04 10:36:34.771: W/dalvikvm(17486): VFY: unable to resolve const-class 1319 (Ldk/thesweetapps/vejviseraktivgravid/MainActivity;) in Ldk/thesweetapps/vejviseraktivgravid/SplashScreen$1;
11-04 10:36:34.771: D/dalvikvm(17486): VFY: replacing opcode 0x1c at 0x0004
11-04 10:36:34.771: D/dalvikvm(17486): VFY: dead code 0x0006-0013 in Ldk/thesweetapps/vejviseraktivgravid/SplashScreen$1;.run ()V
11-04 10:36:36.775: W/dalvikvm(17486): threadid=1: thread exiting with uncaught exception (group=0x40015578)
11-04 10:36:36.783: E/AndroidRuntime(17486): FATAL EXCEPTION: main
11-04 10:36:36.783: E/AndroidRuntime(17486): java.lang.NoClassDefFoundError: dk.thesweetapps.vejviseraktivgravid.MainActivity
11-04 10:36:36.783: E/AndroidRuntime(17486): at dk.thesweetapps.vejviseraktivgravid.SplashScreen$1.run(SplashScreen.java:26)
11-04 10:36:36.783: E/AndroidRuntime(17486): at android.os.Handler.handleCallback(Handler.java:587)
11-04 10:36:36.783: E/AndroidRuntime(17486): at android.os.Handler.dispatchMessage(Handler.java:92)
11-04 10:36:36.783: E/AndroidRuntime(17486): at android.os.Looper.loop(Looper.java:130)
11-04 10:36:36.783: E/AndroidRuntime(17486): at android.app.ActivityThread.main(ActivityThread.java:3687)
11-04 10:36:36.783: E/AndroidRuntime(17486): at java.lang.reflect.Method.invokeNative(Native Method)
11-04 10:36:36.783: E/AndroidRuntime(17486): at java.lang.reflect.Method.invoke(Method.java:507)
11-04 10:36:36.783: E/AndroidRuntime(17486): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
11-04 10:36:36.783: E/AndroidRuntime(17486): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
11-04 10:36:36.783: E/AndroidRuntime(17486): at dalvik.system.NativeStart.main(Native Method)
MainActivity.java：
import java.util.Calendar;
import android.app.ActionBar;
import android.app.AlarmManager;
import android.app.AlertDialog;
import android.app.FragmentTransaction;
import android.app.PendingIntent;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.location.LocationManager;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import dk.thesweetapps.vejviseraktivgravid.Preferences.SettingsActivity;
public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
AppSectionsPagerAdapter pagerAdapter;
public static final String tag = "thesweetapps";
ViewPager viewPager;
String timeForReminderPreference;
SharedPreferences sharedPreferences;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
timeForReminderPreference = sharedPreferences.getString("time_for_reminder", "15:00");
//It returns the pages/tabs
SetTabBar();
SetNotifications();
}
private void SetNotifications() {
Log.e(tag, "inside setNotification");
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
Intent myIntent = new Intent(this , Notification.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, myIntent, PendingIntent.FLAG_CANCEL_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, getHour(timeForReminderPreference));
calendar.set(Calendar.MINUTE, getMinute(timeForReminderPreference));
calendar.set(Calendar.SECOND, 00);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
alarmManager.cancel(pendingIntent);
}
@Override
protected void onResume() {
super.onResume();
String changedForReminderPreference = sharedPreferences
.getString("time_for_reminder", "15:00");
if(timeForReminderPreference != changedForReminderPreference ){
timeForReminderPreference = changedForReminderPreference;
SetNotifications();
}
}
private void SetTabBar() {
pagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());
//setting the actionbar
final ActionBar actionBar = getActionBar();
Log.d(tag, "setting actionbar");
//actionBar.setSelectedNavigationItem(1);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
//setting the viewPager
viewPager = (ViewPager) findViewById(R.id.pager);
viewPager.setAdapter(pagerAdapter);
viewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener(){
@Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
Log.d(tag, "setting viewPager");
//adding pages to actionbar
for(int i = 0; i<pagerAdapter.getCount(); i++){
actionBar.addTab(actionBar.newTab()
.setText(pagerAdapter.getPageTitle(i))
.setTabListener(this).setIcon(pagerAdapter.getIcon(i)));
}
Log.d(tag, "added tabs");
viewPager.setCurrentItem(1);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.e(tag, "inside opOptionsItemSelected: "+item.getItemId());
switch (item.getItemId()) {
case R.id.action_settings:
open();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void open() {
Log.e(tag, "inside open settings");
//getFragmentManager().beginTransaction().replace(android.R.id.content, new SettingsFragment()).commit();
Intent intent = new Intent(this, SettingsActivity.class);
startActivity(intent);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_activity_actions, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction arg1) {
}
@Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction arg1) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction arg1) {
}
public static int getHour(String time) {
String[] pieces = time.split(":");
return (Integer.parseInt(pieces[0]));
}
public static int getMinute(String time) {
String[] pieces = time.split(":");
return (Integer.parseInt(pieces[1]));
}
}
闪屏.java
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
public class SplashScreen extends Activity {
// Splash screen timer
private static int SPLASH_TIME_OUT = 2000;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splash_screen);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent i = new Intent(SplashScreen.this, MainActivity.class);
startActivity(i);
finish();
}
}, SPLASH_TIME_OUT);
}
}
AndroidManifext.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="dk.thesweetapps.vejviseraktivgravid"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="18" />
<!--map xml starts here-->
<permission
android:name="dk.thesweetapps.vejviseraktivgravid.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<!-- Android API uses OpenGL ES version 2 to render the map.
If OpenGL ES version 2 is not installed, your map will not appear -->
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="dk.thesweetapps.vejviseraktivgravid.permission.MAPS_RECEIVE" />
<!-- Used by the API to download map tiles from Google Maps servers. -->
<uses-permission android:name="android.permission.INTERNET" />
<!-- External storage for caching. -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<!-- Allows the API to access Google web-based services. -->
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<!-- Allows the API to use WiFi or mobile cell data (or both) to determine the device's location. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<!-- Allows the API to use the Global Positioning System (GPS) to determine the device's location to within a very small area. -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<!-- map xml ends here -->
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppBaseTheme" >
<!-- Specific key for every android app you need to get from
https://code.google.com/apis/console left at the API acess bar-->
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyDrqs5I0mXD7lx_excAQJQT-a7DNbhAu0Q" />
<activity
android:name="dk.thesweetapps.vejviseraktivgravid.SplashScreen"
android:label="@string/app_name">
android:theme="@android:style/Theme.Holo.Light.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="dk.thesweetapps.vejviseraktivgravid.MainActivity"
android:label="@string/app_name"></activity>
<activity android:label="Personlig indstilling"
android:name="dk.thesweetapps.vejviseraktivgravid.Preferences.SettingsActivity"></activity>
<receiver android:name="dk.thesweetapps.vejviseraktivgravid.Notification"></receiver>
</application>
</manifest>
任何帮助都感激不尽。:)