Question

我让我的Android应用程序通过录制一个简单的视频并让它能够播放它只是崩溃而我的日志猫现在给了我很多错误而且我不知道为什么

这是我的logcat

12-04 23:13:38.487: D/skia(25641): --- SkImageDecoder::Factory returned null
12-04 23:13:38.487: W/PackageManager(25641): Failure retrieving icon 0x7f020000 in package com.example.vmbapp2
12-04 23:13:38.487: W/PackageManager(25641): java.lang.NullPointerException
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.ApplicationPackageManager.putCachedIcon(ApplicationPackageManager.java:757)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.ApplicationPackageManager.getDrawable(ApplicationPackageManager.java:593)
12-04 23:13:38.487: W/PackageManager(25641):    at android.content.pm.PackageItemInfo.loadIcon(PackageItemInfo.java:140)
12-04 23:13:38.487: W/PackageManager(25641):    at android.content.pm.ComponentInfo.loadDefaultIcon(ComponentInfo.java:161)
12-04 23:13:38.487: W/PackageManager(25641):    at android.content.pm.PackageItemInfo.loadIcon(PackageItemInfo.java:145)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.ApplicationPackageManager.getActivityIcon(ApplicationPackageManager.java:613)
12-04 23:13:38.487: W/PackageManager(25641):    at com.android.internal.widget.ActionBarView.<init>(ActionBarView.java:206)
12-04 23:13:38.487: W/PackageManager(25641):    at java.lang.reflect.Constructor.constructNative(Native Method)
12-04 23:13:38.487: W/PackageManager(25641):    at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
12-04 23:13:38.487: W/PackageManager(25641):    at android.view.LayoutInflater.createView(LayoutInflater.java:586)
12-04 23:13:38.487: W/PackageManager(25641):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
12-04 23:13:38.487: W/PackageManager(25641):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
12-04 23:13:38.487: W/PackageManager(25641):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:742)
12-04 23:13:38.487: W/PackageManager(25641):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
12-04 23:13:38.487: W/PackageManager(25641):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
12-04 23:13:38.487: W/PackageManager(25641):    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
12-04 23:13:38.487: W/PackageManager(25641):    at com.android.internal.policy.impl.PhoneWindow.generateLayout(PhoneWindow.java:2785)
12-04 23:13:38.487: W/PackageManager(25641):    at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:2845)
12-04 23:13:38.487: W/PackageManager(25641):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:258)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.Activity.setContentView(Activity.java:2096)
12-04 23:13:38.487: W/PackageManager(25641):    at com.example.vmbapp2.MainActivity.onCreate(MainActivity.java:17)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.Activity.performCreate(Activity.java:4728)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1051)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1924)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1985)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.ActivityThread.access$600(ActivityThread.java:127)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1151)
12-04 23:13:38.487: W/PackageManager(25641):    at android.os.Handler.dispatchMessage(Handler.java:99)
12-04 23:13:38.487: W/PackageManager(25641):    at android.os.Looper.loop(Looper.java:137)
12-04 23:13:38.487: W/PackageManager(25641):    at android.app.ActivityThread.main(ActivityThread.java:4482)
12-04 23:13:38.487: W/PackageManager(25641):    at java.lang.reflect.Method.invokeNative(Native Method)
12-04 23:13:38.487: W/PackageManager(25641):    at java.lang.reflect.Method.invoke(Method.java:511)
12-04 23:13:38.487: W/PackageManager(25641):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
12-04 23:13:38.487: W/PackageManager(25641):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:561)
12-04 23:13:38.487: W/PackageManager(25641):    at dalvik.system.NativeStart.main(Native Method)
12-04 23:13:38.657: I/Adreno200-EGLSUB(25641): <ConfigWindowMatch:2078>: Format RGBA_8888.
12-04 23:13:38.677: E/(25641): Can't open file for reading
12-04 23:13:38.677: E/(25641): Can't open file for reading
12-04 23:13:52.460: D/skia(25721): --- SkImageDecoder::Factory returned null
12-04 23:13:52.470: W/PackageManager(25721): Failure retrieving icon 0x7f020000 in package com.example.vmbapp2
12-04 23:13:52.470: W/PackageManager(25721): java.lang.NullPointerException
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.ApplicationPackageManager.putCachedIcon(ApplicationPackageManager.java:757)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.ApplicationPackageManager.getDrawable(ApplicationPackageManager.java:593)
12-04 23:13:52.470: W/PackageManager(25721):    at android.content.pm.PackageItemInfo.loadIcon(PackageItemInfo.java:140)
12-04 23:13:52.470: W/PackageManager(25721):    at android.content.pm.ComponentInfo.loadDefaultIcon(ComponentInfo.java:161)
12-04 23:13:52.470: W/PackageManager(25721):    at android.content.pm.PackageItemInfo.loadIcon(PackageItemInfo.java:145)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.ApplicationPackageManager.getActivityIcon(ApplicationPackageManager.java:613)
12-04 23:13:52.470: W/PackageManager(25721):    at com.android.internal.widget.ActionBarView.<init>(ActionBarView.java:206)
12-04 23:13:52.470: W/PackageManager(25721):    at java.lang.reflect.Constructor.constructNative(Native Method)
12-04 23:13:52.470: W/PackageManager(25721):    at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
12-04 23:13:52.470: W/PackageManager(25721):    at android.view.LayoutInflater.createView(LayoutInflater.java:586)
12-04 23:13:52.470: W/PackageManager(25721):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
12-04 23:13:52.470: W/PackageManager(25721):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
12-04 23:13:52.470: W/PackageManager(25721):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:742)
12-04 23:13:52.470: W/PackageManager(25721):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
12-04 23:13:52.470: W/PackageManager(25721):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
12-04 23:13:52.470: W/PackageManager(25721):    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
12-04 23:13:52.470: W/PackageManager(25721):    at com.android.internal.policy.impl.PhoneWindow.generateLayout(PhoneWindow.java:2785)
12-04 23:13:52.470: W/PackageManager(25721):    at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:2845)
12-04 23:13:52.470: W/PackageManager(25721):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:258)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.Activity.setContentView(Activity.java:2096)
12-04 23:13:52.470: W/PackageManager(25721):    at com.example.vmbapp2.MainActivity.onCreate(MainActivity.java:17)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.Activity.performCreate(Activity.java:4728)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1051)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1924)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1985)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.ActivityThread.access$600(ActivityThread.java:127)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1151)
12-04 23:13:52.470: W/PackageManager(25721):    at android.os.Handler.dispatchMessage(Handler.java:99)
12-04 23:13:52.470: W/PackageManager(25721):    at android.os.Looper.loop(Looper.java:137)
12-04 23:13:52.470: W/PackageManager(25721):    at android.app.ActivityThread.main(ActivityThread.java:4482)
12-04 23:13:52.470: W/PackageManager(25721):    at java.lang.reflect.Method.invokeNative(Native Method)
12-04 23:13:52.470: W/PackageManager(25721):    at java.lang.reflect.Method.invoke(Method.java:511)
12-04 23:13:52.470: W/PackageManager(25721):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
12-04 23:13:52.470: W/PackageManager(25721):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:561)
12-04 23:13:52.470: W/PackageManager(25721):    at dalvik.system.NativeStart.main(Native Method)
12-04 23:13:52.591: I/Adreno200-EGLSUB(25721): <ConfigWindowMatch:2078>: Format RGBA_8888.
12-04 23:13:52.601: E/(25721): Can't open file for reading
12-04 23:13:52.601: E/(25721): Can't open file for reading
12-04 23:13:55.884: W/dalvikvm(25721): threadid=1: thread exiting with uncaught exception (group=0x40db81f8)
12-04 23:13:55.894: E/AndroidRuntime(25721): FATAL EXCEPTION: main
12-04 23:13:55.894: E/AndroidRuntime(25721): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.vmbapp2/com.example.vmbapp2.ActivityPlay}; have you declared this activity in your AndroidManifest.xml?
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1536)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1390)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.app.Activity.startActivityForResult(Activity.java:3453)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at com.example.vmbapp2.MainActivity.onClick(MainActivity.java:35)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.view.View.performClick(View.java:3528)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.view.View$PerformClick.run(View.java:14217)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.os.Handler.handleCallback(Handler.java:605)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.os.Handler.dispatchMessage(Handler.java:92)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.os.Looper.loop(Looper.java:137)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at android.app.ActivityThread.main(ActivityThread.java:4482)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at java.lang.reflect.Method.invokeNative(Native Method)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at java.lang.reflect.Method.invoke(Method.java:511)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:561)
12-04 23:13:55.894: E/AndroidRuntime(25721):    at dalvik.system.NativeStart.main(Native Method)

Answer 1

加载图片时出错。

它可能在您的布局文件中。请注意，当您致电

时，错误就会开始

setContentView( )

at

com.example.vmbapp2.MainActivity.onCreate(MainActivity.java:17)

或者它可能在清单资源中。

缺少的资源是图标0x7f020000，如您在

中看到的那样

Failure retrieving icon 0x7f020000 in package com.example.vmbapp2

如果您转到 gen / com.example.vmbapp2 / R.java 并查找0x7f020000，您将获得有关导致错误的图像名称的信息。

Answer 2

这就是我的清单看起来像

 <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.vmbapp3"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />

    <application
        android:allowBackup="true"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.vmbapp3.MainActivity"
            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>

这是我的R.java

public final class R {
    public static final class attr {
    }
    public static final class dimen {
        /**  Default screen margins, per the Android Design guidelines. 

         Customize dimensions originally defined in res/values/dimens.xml (such as
         screen margins) for sw720dp devices (e.g. 10" tablets) in landscape here.

         */
        public static final int activity_horizontal_margin=0x7f040000;
        public static final int activity_vertical_margin=0x7f040001;
    }
    public static final class drawable {
        public static final int ic_launcher=0x7f020000;
    }
    public static final class id {
        public static final int action_settings=0x7f080004;
        public static final int choose=0x7f080002;
        public static final int play=0x7f080001;
        public static final int record=0x7f080003;
        public static final int textView1=0x7f080000;
    }
    public static final class layout {
        public static final int activity_main=0x7f030000;
    }
    public static final class menu {
        public static final int main=0x7f070000;
    }
    public static final class string {
        public static final int Choose=0x7f050003;
        public static final int Play=0x7f050002;
        public static final int Record=0x7f050004;
        public static final int action_settings=0x7f050001;
        public static final int app_name=0x7f050000;
        public static final int record=0x7f050006;
        public static final int welcome_to_vmb=0x7f050005;
    }
    public static final class style {
        /** 
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.


            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.


        Base application theme for API 11+. This theme completely replaces
        AppBaseTheme from res/values/styles.xml on API 11+ devices.

 API 11 theme customizations can go here. 

        Base application theme for API 14+. This theme completely replaces
        AppBaseTheme from BOTH res/values/styles.xml and
        res/values-v11/styles.xml on API 14+ devices.

 API 14 theme customizations can go here. 
         */
        public static final int AppBaseTheme=0x7f060000;
        /**  Application theme. 
 All customizations that are NOT specific to a particular API-level can go here. 
         */
        public static final int AppTheme=0x7f060001;
    }
}

录制视频工作然后logcat吓坏了

2 个答案: