小编Kar*_*vam的帖子

我目前正在开展一个项目,我必须使用纯粹的原生ndk.当我尝试从Irrlicht引擎源运行helloworld示例时,它工作正常.然后我尝试在我的项目中使用它,遵循该示例的相同格式.但我得到了:

03-14 01:40:05.308: E/AndroidRuntime(799): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.irrlicht.example1/android.app.POMActivity}: java.lang.ClassNotFoundException: Didn't find class "android.app.POMActivity" on path: DexPathList[[zip file "/data/app/com.irrlicht.example1-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.irrlicht.example1-2, /system/lib]]

在运行我的项目时.

这是我的main.cpp文件:

#include <android/log.h>
#include <jni.h>
#include <android_native_app_glue.h>
#include "android_tools.h"
#ifdef _IRR_ANDROID_PLATFORM_
void android_main(android_app* app)
{
__android_log_print(4 , "pom" , "nothing");
}

#万一

在Android.mk中:

LOCAL_PATH := $(call my-dir)/..
IRRLICHT_PROJECT_PATH := $(LOCAL_PATH)
include $(CLEAR_VARS)
LOCAL_MODULE := Irrlicht
LOCAL_SRC_FILES := /home/karthik/Android/Essentials/ogl-es/lib/Android/libIrrlicht.a
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := HelloWorldMobile1
LOCAL_CFLAGS := -D_IRR_ANDROID_PLATFORM_ -pipe -fno-exceptions -fno-rtti -fstrict-aliasing
LOCAL_C_INCLUDES := -I ../../include -I /home/karthik/Android/Essentials/ogl-es/include …

我在我的项目(Native Activity)中使用纯粹的本机NDK.当我在Android.mk文件中添加带有.so的Prebuilt静态库时,它工作正常.但是当我尝试链接Prebuilt共享库时,它显示以下异常:

03-27 16:42:09.982: E/AndroidRuntime(1275): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.irrlicht.example/android.app.NativeActivity}: java.lang.IllegalArgumentException: Unable to load native library: /data/app-lib/com.irrlicht.example-1/libHelloWorldMobile.so

这是我的Android.mk文件:

....

include $(CLEAR_VARS)
LOCAL_C_INCLUDES := /Users/karthi/Android/openal-soft-master/jni/OpenAL/include
LOCAL_MODULE := openal
LOCAL_SRC_FILES := /Users/karthi/Android/openal-soft-master/libs/armeabi/libopenal.so
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)

LOCAL_MODULE := HelloWorldMobile

LOCAL_CFLAGS := -D_IRR_ANDROID_PLATFORM_ -pipe -fno-exceptions -fno-rtti -fstrict-aliasing

LOCAL_C_INCLUDES := -I ../../include -I /Users/karthi/Android/openal-soft-master/jni/OpenAL/include

LOCAL_SRC_FILES := main.cpp android_tools.cpp game.cpp

LOCAL_LDLIBS := -lEGL -llog -lGLESv1_CM -lGLESv2 -lz -landroid

LOCAL_SHARED_LIBRARIES := openal

include $(BUILD_SHARED_LIBRARY)

在我的AndroidManifest.xml中:

<activity android:name="android.app.NativeActivity"
        android:label="HelloWorldMobile"
        android:launchMode="singleTask"
        android:configChanges="orientation|keyboardHidden"
        android:screenOrientation="landscape"
        android:clearTaskOnLaunch="true">
        <meta-data android:name="android.app.lib_name" android:value="HelloWorldMobile" …

我正在做一个类似于视频专辑的项目。我UICollectionView用来显示这些视频的拇指图像。最糟糕的是我不应该使用故事板或 xib 文件。我试图以编程方式做到这一点。我目前正在处理此代码：

- (void)viewDidLoad
{
    i = 0;

    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    [layout setItemSize:CGSizeMake(self.view.frame.size.width/2.5,self.view.frame.size.width/2.5)];

    collectionView = [[UICollectionView alloc] initWithFrame:self.view.frame collectionViewLayout:layout];
    [collectionView setDataSource:self];
    [collectionView setDelegate:self];
    collectionView.backgroundColor = [UIColor whiteColor];
    [collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"MyCell"];

    [self.view addSubview:collectionView];

    [super viewDidLoad];
}

我已经给了 1 以返回numberOfSectionsInCollectionView和[myArray count]返回numberOfItemsInSection.

-(UICollectionViewCell *) collectionView:(UICollectionView *)cV cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
   UICollectionViewCell *cell = [cV dequeueReusableCellWithReuseIdentifier:@"MyCell" forIndexPath:indexPath];
    cell.backgroundColor = [UIColor blackColor];

    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(cell.frame.origin.x , cell.frame.origin.y, cell.frame.size.width, (cell.frame.size.height - …

我正在开发一个项目，在该项目中我必须访问 SQLite3 数据库中的数据并在键入时向用户显示建议。我已经用 AutoCompleteTextView 尝试过这个，但它不起作用。我正在处理此代码：

ArrayList<String> sugestion = new ArrayList<String>();


public ViewGroup onCreateView (LayoutInflater inflater , ViewGroup container , Bundle savedInstanceState )
{
myAutoComplete = (AutoCompleteTextView) group.findViewById(R.id.searchit);

searchDB = new searchAdapter(getActivity());

searchDB.getWritableDatabase();

myAutoComplete.addTextChangedListener(new TextWatcher(){
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            suggestion = searchDB.getSuggestion(s.toString());

            Collections.sort(suggestion);

            String[] item = new String[suggestion.size()];

            item = suggestion.toArray(item);

            for(String word : item)
                System.out.println(word);

        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count,
                int after) {                

        }

        @Override
        public void …