Java 拍摄相机图像并添加到android中的滑块

我是android新手，我正在尝试添加从相机拍摄的图像，并将它们添加到

查看页面中。它应该看起来像一个图像旋转木马。这是我到目前为止尝试过的，但问题是相同的图像被添加了5次。
我想知道我可以在我的
CustomAdapter
的
getCount（）
方法中更改什么，以便将不同的图像发送到转盘

我的主要活动

public class MainActivity extends AppCompatActivity {

public final static int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 1034;
public String photoFileName = "photo.jpg";
public final String APP_TAG = "MyCustomApp";
ViewPager viewPager;
CustomSwipeAdapter adapter;

ImageView iv; 

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

  Button btn = (Button) findViewById(R.id.button1);
  viewPager = (ViewPager) findViewById(R.id.view_pager); 

  btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, getPhotoFileUri(photoFileName));

            if (intent.resolveActivity(getPackageManager()) != null) {
                startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
            }

        }
    });

}

 //ON ACTIVITY RESULT..

 protected void onActivityResult(int requestCode, int resultCode, Intent data) {if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
        if (resultCode == RESULT_OK) {


            Uri takenPhotoUri = getPhotoFileUri(photoFileName);
            Bitmap takenImage = BitmapFactory.decodeFile(takenPhotoUri.getPath());


            adapter = new CustomSwipeAdapter(this, iv, takenImage);
            viewPager.setAdapter(adapter);

        } else {
            Toast.makeText(this, "Picture Wasn't taken!", Toast.LENGTH_SHORT).show();
        }
    }
}


public Uri getPhotoFileUri(String fileName) {
    if (isExternalStorageAvailable()) {
        File mediaStoreDir = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), APP_TAG);

        if (!mediaStoreDir.exists() && !mediaStoreDir.mkdirs()) {
            Log.d(APP_TAG, "Failed to create Directory");
        }
        return Uri.fromFile(new File(mediaStoreDir.getPath() + File.separator + fileName));

    }
    return null;
}

private boolean isExternalStorageAvailable() {
    String state = Environment.getExternalStorageState();
    return state.equals(Environment.MEDIA_MOUNTED);
}

自定义适配器

public class CustomSwipeAdapter extends PagerAdapter {
private Context ctx;
private LayoutInflater layoutInflater;
ImageView iv;
Bitmap imageTaken;


public CustomSwipeAdapter(Context ctx, ImageView iv, Bitmap imageTaken) {
    this.ctx = ctx;
    this.iv = iv;
    this.imageTaken = imageTaken;
}

@Override
public int getCount() {
    return 5;  //Need to get Image Count here...
}

@Override
public boolean isViewFromObject(View view, Object object) {

    return (view == (LinearLayout) object);
}

@Override
public Object instantiateItem(ViewGroup container, int position) {
    layoutInflater = (LayoutInflater)      ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View item_view = layoutInflater.inflate(R.layout.swipe_layout, container, false);
    TextView tv = (TextView) item_view.findViewById(R.id.image_count);
    iv = (ImageView) item_view.findViewById(R.id.imageView1);
    iv.setImageBitmap(imageTaken);
    tv.setText("Image" + position);
    container.addView(item_view);
    return item_view;
}

@Override
public void destroyItem(ViewGroup container, int position, Object object) {

    container.removeView((LinearLayout) object);
  }
}

活动\u main.xml

    <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=".MainActivity">

    <android.support.v4.view.ViewPager
        android:id ="@+id/view_pager"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:text="Take a Photo"></Button>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/image_count"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="25dp"
        android:gravity="center"
        android:text="Hello World"
        android:textSize="25dp"
        android:textStyle="bold" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/button1"
        android:layout_alignParentTop="true"
        android:layout_marginTop="25dp" />
</LinearLayout>



滑动布局.xml

    <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=".MainActivity">

    <android.support.v4.view.ViewPager
        android:id ="@+id/view_pager"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:text="Take a Photo"></Button>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/image_count"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="25dp"
        android:gravity="center"
        android:text="Hello World"
        android:textSize="25dp"
        android:textStyle="bold" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/button1"
        android:layout_alignParentTop="true"
        android:layout_marginTop="25dp" />
</LinearLayout>

您看到一个图像5次，因为您只向适配器构造函数提供一个位图并显示该图像。
请将从相机拍摄的新图像添加到
ArrayList位图列表
，并将该位图传递给适配器

在getView方法中，从arralist中获取位图并显示在旋转木马中

希望这对您有所帮助。
谢谢！这很有效！从未想过将图像添加到ArrayList。但我现在已经修好了。：）谢谢你接受这个答案，我不知道谁对你的问题投了赞成票。