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2つのレイアウト1）イメージ用と2）ドキュメント用 MainActivityでオプションメニューでデバイスストレージからimageまたはpdfを選択し、pojoクラスを使用してアダプタクラスにデータを送信します。リサイクラビューに2つの異なるレイアウトを動的に追加します
私の問題は、私がリサイクラビューで適切にバインドすることができないことです。リサイクラビューで表示される画像よりもイメージを選択したい場合、同じリストでも同様にpdfファイルビューで表示されます。
public class HirenModifided extends AppCompatActivity {
private Dialog dialog;
private RecyclerView recyclerView;
SetterGetter setGet;
public static final int RESULT_LOAD_FILE = 0;
public static final int RESULT_LOAD_IMAGE = 1;
public static final int RESULT_OK = -1;
public static final int REQUEST_IMAGE_CAPTURE = 2;
private ImageAdapter objAdapter;
public static ArrayList<SetterGetter> pdfPaths = new ArrayList<>();
public static ArrayList<SetterGetter> imagePaths = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView = (RecyclerView) findViewById(R.id.recycler);
setGet = new SetterGetter();
recyclerView.setHasFixedSize(true);
LinearLayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
recyclerView.setLayoutManager(mLayoutManager);
objAdapter = new ImageAdapter(getApplicationContext());
recyclerView.setAdapter(objAdapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.image:
itemAddClick();
return true;
case R.id.file:
FilePicker();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
public void FilePicker() {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
startActivityForResult(intent, RESULT_LOAD_FILE);
}
public void itemAddClick() {
dialog = new Dialog(HirenModifided.this);
dialog.setContentView(R.layout.custom_dialog_box);
dialog.setTitle("Select Photo");
Button btnExit = (Button) dialog.findViewById(R.id.btnExit);
btnExit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog.dismiss();
}
});
dialog.findViewById(R.id.btnChoosePath).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
activeGallery();
}
});
dialog.findViewById(R.id.btnTakePhoto).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
activeTakePhoto();
}
});
// show dialog on screen
dialog.show();
}
private void activeGallery() {
Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, RESULT_LOAD_IMAGE);
dialog.dismiss();
}
private void activeTakePhoto() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
dialog.dismiss();
}
//this method is for resize image
public Bitmap getResizedBitmap(Bitmap image, int maxSize) {
int width = image.getWidth();
int height = image.getHeight();
float bitmapRatio = (float) width/(float) height;
if (bitmapRatio > 1) {
width = maxSize;
height = (int) (width/bitmapRatio);
} else {
height = maxSize;
width = (int) (height * bitmapRatio);
}
return Bitmap.createScaledBitmap(image, width, height, true);
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RESULT_LOAD_IMAGE:
if (requestCode == RESULT_LOAD_IMAGE &&
resultCode == RESULT_OK && null != data) {
Uri filePath = data.getData();
Log.e("IMAGE", filePath + "");
try {
InputStream imageStream = this.getContentResolver().openInputStream(filePath);
Bitmap selectedImage = BitmapFactory.decodeStream(imageStream);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
selectedImage = getResizedBitmap(selectedImage, 400);
selectedImage.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
/* setGet.path(Base64.encodeToString(byteArray, Base64.DEFAULT));
imagePaths.add(setGet);
//FilePaths.clear();
FilePaths.addAll(imagePaths);
objAdapter.notifyDataSetChanged();*/
setGet.path(Base64.encodeToString(byteArray, Base64.DEFAULT));
imagePaths.add(setGet);
objAdapter.insert(imagePaths);
} catch (IOException e) {
e.printStackTrace();
}
}
case RESULT_LOAD_FILE:
if (requestCode == RESULT_LOAD_FILE &&
resultCode == RESULT_OK && null != data) {
String FilePath = data.getData().getPath();
Log.e("FILEPATH", FilePath);
String filename = FilePath.substring(FilePath.lastIndexOf("/") + 1);
Log.e("onActivityResult: ", filename);
/* setGet.path(filename);
pdfPaths.add(setGet);
//FilePaths.clear();
FilePaths.addAll(pdfPaths);
objAdapter.notifyDataSetChanged();*/
setGet.path(filename);
pdfPaths.add(setGet);
objAdapter.insert(pdfPaths);
}
}
}
}
POJO
public class SetterGetter {
public static String path;
public void path(String s) {
path = s;
}
public String getPath() {
return path;
}
}
アダプタ
public class ImageAdapter extends RecyclerView.Adapter<ImageAdapter.ViewHolder> {
private LayoutInflater inflater = null;
public static ArrayList<SetterGetter> file_paths = new ArrayList<>();
public static final int RESULT_LOAD_FILE = 0;
public static final int RESULT_LOAD_IMAGE = 1;
int get_list_position;
Context context;
public ImageAdapter(Context mcontext) {
this.context = mcontext;
inflater = LayoutInflater.from(context);
}
public class ViewHolder extends RecyclerView.ViewHolder {
public ViewHolder(View itemView) {
super(itemView);
}
}
public class FilePick extends ViewHolder {
TextView temp;
public FilePick(View v) {
super(v);
this.temp = (TextView) v.findViewById(R.id.file_name);
}
}
public class ImagePick extends ViewHolder {
ImageView score;
public ImagePick(View v) {
super(v);
this.score = (ImageView) v.findViewById(R.id.image_list);
}
}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
// Insert a new item to the RecyclerView on a predefined position
public void insert(ArrayList<SetterGetter> data) {
file_paths.add(data.get(get_list_position));
notifyItemInserted(get_list_position);
}
/* // Remove a RecyclerView item containing a specified Data object
public void remove(SetterGetter data) {
int position = file_paths.indexOf(data);
file_paths.remove(position);
Toast.makeText(context, "Deleted : " + position, Toast.LENGTH_SHORT).show();
notifyItemRemoved(position);
}*/
@Override
public int getItemViewType(int position) {
// Log.e("getItemViewType:pos ", String.valueOf(position));
Log.e("IS this PDF ?", String.valueOf(file_paths.get(position).getPath().endsWith(".pdf")));
if (file_paths.get(position).getPath().endsWith("pdf")) {
return RESULT_LOAD_FILE;
} else {
return RESULT_LOAD_IMAGE;
}
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v;
Log.e("layout code: ", viewType + "");
if (viewType == RESULT_LOAD_FILE) {
v = inflater
.inflate(R.layout.file_raw, parent, false);
return new FilePick(v);
} else {
v = inflater
.inflate(R.layout.raw, parent, false);
return new ImagePick(v);
}
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
Log.e("onBindViewHolder:pos ", String.valueOf(position));
get_list_position = position;
if (holder instanceof FilePick) {
FilePick file = (FilePick) holder;
file.temp.setText(file_paths.get(position).getPath());
} else if (holder instanceof ImagePick) {
ImagePick image = (ImagePick) holder;
byte[] decodeValue = new byte[0];
try {
decodeValue = Base64.decode(file_paths.get(position).getPath().getBytes("UTF-8"), Base64.DEFAULT);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Bitmap bitmap = BitmapFactory.decodeByteArray(decodeValue, 0, decodeValue.length);
image.score.setImageBitmap(bitmap);
}
}
@Override
public int getItemCount() {
return file_paths.size();
}
}
あなたのコードは正しいようですが、あなたが直面しているエラー/問題は何ですか？ iは画像最初に選択した場合 – Pr38y
その番組likeE/AndroidRuntime：致命的な例外：メイン プロセス：com.example.guest999.demo_jordar、PID：10873 java.lang.IndexOutOfBoundsException：無効なインデックス1は、サイズがログを何1 – Hiren
あります。 e（ "onBindViewHolder：pos"、String.valueOf（position））;印刷しますか？ – Pr38y