我是Android开发的新手，我希望你的帮助，在我开发我的应用程序和测试后，我可以启动它并在我的物理Note 2或任何4.1 Android版本上运行它，但不是在模拟器上即使是相同的版本。
请参阅我的日志cat错误日志。
11-10 09:19:18.565: E/AndroidRuntime(1273): FATAL EXCEPTION: main
11-10 09:19:18.565: E/AndroidRuntime(1273): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.Frdaoud.moka/com.Frdaoud.moka.SplashActivity}: java.lang.NullPointerException
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.os.Handler.dispatchMessage(Handler.java:99)
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.os.Looper.loop(Looper.java:130)
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.app.ActivityThread.main(ActivityThread.java:3683)
11-10 09:19:18.565: E/AndroidRuntime(1273): at java.lang.reflect.Method.invokeNative(Native Method)
11-10 09:19:18.565: E/AndroidRuntime(1273): at java.lang.reflect.Method.invoke(Method.java:507)
11-10 09:19:18.565: E/AndroidRuntime(1273): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
11-10 09:19:18.565: E/AndroidRuntime(1273): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11-10 09:19:18.565: E/AndroidRuntime(1273): at dalvik.system.NativeStart.main(Native Method)
11-10 09:19:18.565: E/AndroidRuntime(1273): Caused by: java.lang.NullPointerException
11-10 09:19:18.565: E/AndroidRuntime(1273): at com.Frdaoud.moka.SplashActivity.StartAnimations(SplashActivity.java:57)
11-10 09:19:18.565: E/AndroidRuntime(1273): at com.Frdaoud.moka.SplashActivity.onCreate(SplashActivity.java:40)
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-10 09:19:18.565: E/AndroidRuntime(1273): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
11-10 09:19:18.565: E/AndroidRuntime(1273): ... 11 more
package com.Frdaoud.moka;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.Window;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.widget.LinearLayout;
public class SplashActivity extends Activity {
MediaPlayer OurSong;
private long splashDelay = 3700; //3.7 seconds
public void onAttachedToWindow() {
super.onAttachedToWindow();
Window window = getWindow();
window.setFormat(PixelFormat.RGBA_8888);
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_splash);
StartAnimations();
}
private void StartAnimations() {
Animation anim = AnimationUtils.loadAnimation(this, R.anim.alpha);
anim.reset();
LinearLayout l=(LinearLayout) findViewById(R.id.logo1);
l.clearAnimation();
l.startAnimation(anim);
anim = AnimationUtils.loadAnimation(this, R.anim.translate);
anim.reset();
ImageView iv = (ImageView) findViewById(R.id.logo);
iv.clearAnimation();
iv.startAnimation(anim);
OurSong = MediaPlayer.create(SplashActivity.this, R.raw.test1);
OurSong.start();
TimerTask task = new TimerTask()
{
@Override
public void run() {
finish();
Intent mainIntent = new Intent().setClass(SplashActivity.this, MainActivity.class);
startActivity(mainIntent);
}
};
Timer timer = new Timer();
timer.schedule(task, splashDelay);
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.Frdaoud.moka"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="16" />
<supports-screens android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" android:anyDensity="true"></supports-screens>
<supports-screens android:anyDensity="true" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.Frdaoud.moka.SplashActivity"
android:label="@string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.Frdaoud.moka.MainActivity"
android:label="@string/app_name" >
</activity>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<activity
android:name="com.Frdaoud.moka.Sermonsv"
android:label="@string/title_activity_sermons" >
</activity>
<activity
android:name="com.Frdaoud.moka.Service"
android:label="@string/title_activity_service" >
</activity>
<activity
android:name="com.Frdaoud.moka.LiveStreaming"
android:label="@string/title_activity_live_streaming" >
</activity>
<activity
android:name="com.Frdaoud.moka.Services"
android:label="@string/title_activity_services" >
</activity>
<activity
android:name="com.Frdaoud.moka.Atakal"
android:label="@string/title_activity_atakal" >
</activity>
<activity
android:name="com.Frdaoud.moka.Sad"
android:label="@string/title_activity_sad" >
</activity>
<activity
android:name="com.Frdaoud.moka.Heart"
android:label="@string/title_activity_heart" >
</activity>
<activity
android:name="com.Frdaoud.moka.Pray"
android:label="@string/title_activity_pray" >
</activity>
<activity
android:name="com.Frdaoud.moka.Voicevideo"
android:label="@string/title_activity_voicevideo" >
</activity>
<activity
android:name="com.Frdaoud.moka.Sermons2"
android:label="@string/title_activity_sermons2" >
</activity>
<activity
android:name="com.Frdaoud.moka.Email"
android:label="@string/title_activity_email" >
</activity>
<activity
android:name="com.Frdaoud.moka.Bible"
android:label="@string/title_activity_bible" >
</activity>
<activity
android:name="com.Frdaoud.moka.HttpExample"
android:label="@string/title_activity_http_example" >
</activity>
<activity
android:name="com.Frdaoud.moka.Side_navigation"
android:label="@string/title_activity_side_navigation" >
</activity>
<activity
android:name="com.Frdaoud.moka.Moka"
android:label="@string/title_activity_moka" >
</activity>
<activity
android:name="com.Frdaoud.moka.Slider"
android:label="@string/title_activity_slider" >
</activity>
<activity
android:name="com.Frdaoud.moka.Sermons3"
android:label="@string/title_activity_sermons3" >
</activity>
<activity
android:name="com.Frdaoud.moka.Evan"
android:label="@string/title_activity_evan" >
</activity>
<activity
android:name="com.Frdaoud.moka.Timing"
android:label="@string/title_activity_timing" >
</activity>
<activity
android:name="com.Frdaoud.moka.Fragment_1"
android:label="@string/title_activity_fragment_1" >
</activity>
<activity
android:name="com.Frdaoud.moka.Fragment_2"
android:label="@string/title_activity_fragment_2" >
</activity>
<activity
android:name="com.Frdaoud.moka.Sermonsa"
android:label="@string/title_activity_sermonsa" >
</activity>
<activity
android:name="com.Frdaoud.moka.Prayers"
android:label="@string/title_activity_prayers" >
</activity>
<activity
android:name="com.Frdaoud.moka.ActionDrawerBasic"
android:label="@string/title_activity_action_drawer_basic" >
</activity>
<activity
android:name="com.Frdaoud.moka.Apologetics"
android:label="@string/title_activity_apologetics" >
</activity>
<activity
android:name="com.Frdaoud.moka.Health"
android:label="@string/title_activity_health" >
</activity>
<activity
android:name="com.Frdaoud.moka.Sexual"
android:label="@string/title_activity_sexual" >
</activity>
<activity
android:name="com.Frdaoud.moka.Quotes"
android:label="@string/title_activity_quotes" >
</activity>
<activity
android:name="com.Frdaoud.moka.Quotesm"
android:label="@string/title_activity_quotesm" >
</activity>
</application>
</manifest>
答案 0 :(得分：0)
你正在获得空指针异常，这就是你的应用程序崩溃的原因。仔细查看logcat输出
Caused by: java.lang.NullPointerException
11-10 09:19:18.565: E/AndroidRuntime(1273): at com.Frdaoud.moka.SplashActivity.StartAnimations(SplashActivity.java:57)
11-10 09:19:18.565: E/AndroidRuntime(1273): at com.Frdaoud.moka.SplashActivity.onCreate(SplashActivity.java:40)
检查第57行。应用断点并检查它是否获得任何值或是否为空。使用调试工具。也可以发布您的代码并提及代码中的第57行