我想在android中分享图片。我检查了很多代码，但所有代码都使应用程序停止.logcat错误如下：
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: FATAL EXCEPTION: main
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: java.lang.RuntimeException: Parcel: unable to marshal value ir.whc.news.model.ImageItem@41884b00
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeValue(Parcel.java:1235)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeList(Parcel.java:622)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeValue(Parcel.java:1195)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeMapInternal(Parcel.java:591)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Bundle.writeToParcel(Bundle.java:1619)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeBundle(Parcel.java:605)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.support.v4.app.FragmentState.writeToParcel(Fragment.java:137)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeTypedArray(Parcel.java:1102)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.support.v4.app.FragmentManagerState.writeToParcel(FragmentManager.java:385)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeParcelable(Parcel.java:1254)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeValue(Parcel.java:1173)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeMapInternal(Parcel.java:591)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Bundle.writeToParcel(Bundle.java:1619)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Parcel.writeBundle(Parcel.java:605)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.app.ActivityManagerProxy.activityStopped(ActivityManagerNative.java:2238)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.app.ActivityThread$StopInfo.run(ActivityThread.java:3393)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:615)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:92)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.os.Looper.loop(Looper.java:155)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5520)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:511)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1029)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:796)
05-08 22:17:33.656 25125-25125/ir.whc.news E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
这是我的代码：
package ir.whc.news.activity;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.provider.MediaStore;
import android.support.v4.app.DialogFragment;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AlertDialog;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import ir.whc.news.R;
import ir.whc.news.classes.CapturePhotoUtils;
import ir.whc.news.classes.Utility;
import ir.whc.news.model.ImageItem;
/**
* Created by marzieh on 4/27/2016.
*/
public class SlideshowDialogFragment extends DialogFragment implements View.OnClickListener {
private String TAG = SlideshowDialogFragment.class.getSimpleName();
private ArrayList<ImageItem> images;
private ViewPager viewPager;
private MyViewPagerAdapter myViewPagerAdapter;
private TextView lblCount, lblTitle;
private int selectedPosition = 0;
private int scwidth;
RelativeLayout buttom_toolbar;
ImageView btnsave;
ImageView btnshare;
ImageView imageViewPreview;
ImageItem image;
static SlideshowDialogFragment newInstance() {
SlideshowDialogFragment f = new SlideshowDialogFragment();
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_image_slider, container, false);
viewPager = (ViewPager) v.findViewById(R.id.viewpager);
lblCount = (TextView) v.findViewById(R.id.lbl_count);
lblTitle = (TextView) v.findViewById(R.id.title);
buttom_toolbar = (RelativeLayout) v.findViewById(R.id.bottom_toolbar);
buttom_toolbar.setVisibility(View.INVISIBLE);
btnsave = (ImageView) v.findViewById(R.id.btnsave);
btnshare = (ImageView) v.findViewById(R.id.btnshare);
btnshare.setOnClickListener(this);
btnsave.setOnClickListener(this);
images = (ArrayList<ImageItem>) getArguments().getSerializable("images");
selectedPosition = getArguments().getInt("position");
scwidth = getArguments().getInt("scwidth");
Log.e(TAG, "position: " + selectedPosition);
Log.e(TAG, "images size: " + images.size());
myViewPagerAdapter = new MyViewPagerAdapter();
viewPager.setAdapter(myViewPagerAdapter);
viewPager.addOnPageChangeListener(viewPagerPageChangeListener);
setCurrentItem(selectedPosition);
return v;
}
private void setCurrentItem(int position) {
viewPager.setCurrentItem(position, false);
displayMetaInfo(selectedPosition);
}
// page change listener
ViewPager.OnPageChangeListener viewPagerPageChangeListener = new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
displayMetaInfo(position);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
};
private void displayMetaInfo(int position) {
lblCount.setText((position + 1) + " of " + images.size());
ImageItem image = images.get(position);
lblTitle.setText(image.get_description() != "null" ? image.get_description() : "");
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setStyle(DialogFragment.STYLE_NORMAL, android.R.style.Theme_Black_NoTitleBar_Fullscreen);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnsave:
ProgressDialog pdilog=new ProgressDialog(getActivity());
pdilog.setMessage(getString(R.string.loading));
pdilog.show();
savepic();
pdilog.hide();
Toast.makeText(getActivity(), getString(R.string.pictureissaved), Toast.LENGTH_SHORT).show();
break;
case R.id.btnshare:
sharePic();
break;
}
}
private void sharePic()
{
Bitmap bitmap;
OutputStream output;
if (imageViewPreview.getDrawable() instanceof BitmapDrawable) {
bitmap = ((BitmapDrawable) imageViewPreview.getDrawable()).getBitmap();
} else {
Drawable d = imageViewPreview.getDrawable();
bitmap = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
d.draw(canvas);
}
// Find the SD Card path
File filepath = Environment.getExternalStorageDirectory();
// Create a new folder AndroidBegin in SD Card
File dir = new File(filepath.getAbsolutePath() + "/Share Image Tutorial/");
dir.mkdirs();
// Create a name for the saved image
File file = new File(dir, "sample_wallpaper.png");
try {
// Share Intent
Intent share = new Intent(Intent.ACTION_SEND);
// Type of file to share
share.setType("image/jpeg");
output = new FileOutputStream(file);
// Compress into png format image from 0% - 100%
bitmap.compress(Bitmap.CompressFormat.PNG, 100, output);
output.flush();
output.close();
// Locate the image to Share
Uri uri = Uri.fromFile(file);
// Pass the image into an Intnet
share.putExtra(Intent.EXTRA_STREAM, uri);
// Show the social share chooser list
startActivity(Intent.createChooser(share, "Share Image Tutorial"));
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void savepic() {
Bitmap bitmap;
if (imageViewPreview.getDrawable() instanceof BitmapDrawable) {
bitmap = ((BitmapDrawable) imageViewPreview.getDrawable()).getBitmap();
} else {
Drawable d = imageViewPreview.getDrawable();
bitmap = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
d.draw(canvas);
}
CapturePhotoUtils.insertImage(getActivity().getContentResolver(), bitmap, image.get_id() + "", image.get_description());
}
// adapter
public class MyViewPagerAdapter extends PagerAdapter {
private LayoutInflater layoutInflater;
public MyViewPagerAdapter() {
}
@Override
public Object instantiateItem(ViewGroup container, final int position) {
layoutInflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.image_fullscreen_preview, container, false);
imageViewPreview = (ImageView) view.findViewById(R.id.image_preview);
image = images.get(position);
Glide.with(getActivity()).load(image.get_largimage_path() + "/" + scwidth)
.thumbnail(0.5f)
.crossFade()
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imageViewPreview);
container.addView(view);
imageViewPreview.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// buttom_toolbar.setVisibility(buttom_toolbar.getVisibility()==View.VISIBLE?View.INVISIBLE:View.VISIBLE);
if (buttom_toolbar.getVisibility() == View.INVISIBLE) {
buttom_toolbar.setVisibility(View.VISIBLE);
new Handler().postDelayed(new Runnable() {
public void run() {
buttom_toolbar.setVisibility(View.INVISIBLE);
}
}, 3000);
} else {
// buttom_toolbar.setVisibility(View.INVISIBLE);
}
/* AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(getString(R.string.savePicMessage))
.setCancelable(false)
.setPositiveButton(getString(R.string.Ok), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
*//*
Bitmap bitmap;
if (imageViewPreview.getDrawable() instanceof BitmapDrawable) {
bitmap = ((BitmapDrawable) imageViewPreview.getDrawable()).getBitmap();
} else {
Drawable d = imageViewPreview.getDrawable();
bitmap = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
d.draw(canvas);
}
CapturePhotoUtils.insertImage(getActivity().getContentResolver(), bitmap, image.get_id() + "", image.get_description());
*//*
}
})
.setNegativeButton(getString(R.string.Cancle), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();*/
}
});
return view;
}
@Override
public int getCount() {
return images.size();
}
@Override
public boolean isViewFromObject(View view, Object obj) {
return view == ((View) obj);
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
}
}
我的代码出了什么问题？
EDITE：
imageItem类
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
/**
* Created by marzieh on 4/9/2016.
*/
public class ImageItem {
private int _id;
private String _description;
private String _thumb_path;
private String _largimage_path;
public ImageItem()
{
}
public ImageItem(int _id,String _description,String _thumb_path,String _largimage_path)
{
this._id=_id;
this._description=_description;
this._largimage_path=_largimage_path;
this._thumb_path=_thumb_path;
}
public String get_description() {
return _description;
}
public void set_description(String _description) {
this._description = _description;
}
public void set_id(int _id) {
this._id = _id;
}
public int get_id() {
return _id;
}
public String get_largimage_path() {
return _largimage_path;
}
public String get_thumb_path() {
return _thumb_path;
}
public void set_largimage_path(String _largimage_path) {
this._largimage_path = _largimage_path;
}
public void set_thumb_path(String _thumb_path) {
this._thumb_path = _thumb_path;
}
public static ImageItem fromJson(JSONObject jsonObject)
{
ImageItem imageItem=new ImageItem();
try {
imageItem._id=Integer.parseInt(jsonObject.getString("id"));
imageItem._largimage_path=jsonObject.getString("large_img");
imageItem._thumb_path=jsonObject.getString("tb_img");
imageItem._description=jsonObject.getString("description");
} catch (JSONException e) {
e.printStackTrace();
return null;
}
// Return new object
return imageItem;
}
public static ArrayList<ImageItem> fromJson(JSONArray jsonArray) {
JSONObject imageItemJson;
ArrayList<ImageItem> imageItems = new ArrayList<ImageItem>(jsonArray.length());
// Process each result in json array, decode and convert to subdomain object
for (int i=0; i < jsonArray.length(); i++) {
try {
imageItemJson = jsonArray.getJSONObject(i);
} catch (Exception e) {
e.printStackTrace();
continue;
}
ImageItem imageItem = ImageItem.fromJson(imageItemJson);
if (imageItem != null) {
imageItems.add(imageItem);
}
}
return imageItems;
}
}
答案 0 :(得分：1)
我认为问题不在于共享代码。从stacktrace中你可以清楚地看到该框架抱怨ImageItem类对象：
java.lang.RuntimeException: Parcel: unable to marshal value ir.whc.news.model.ImageItem@41884b00.
不知道如何包裹它。显然，您将ImageItem个对象作为参数通过bundle传递给DialogFragment（您的问题缺少此调用代码），并且为了实现这一点，对象必须实现Parcelable接口。您的ImageItem没有必需的代码，因此您需要添加它（有关如何使用该信息或使用哪些工具生成所需代码，请参阅How can I make my custom objects be Parcelable?）。或者，您可以使用像Parceler这样的库来为您执行此操作。
答案 1 :(得分：1)
因为这行
你正在崩溃 images = (ArrayList<ImageItem>) getArguments().getSerializable("images");
实际上你的ImageItem既不是Serializable也不是Parcelable，你试图将它的对象作为参数发送到bundle中。要避免这种情况，请使用Parcelable接口实现ImageItem类。
public class ImageItem implements Parcelable{
public static final Creator<ImageItem> CREATOR = new Creator<ImageItem>() {
public ImageItem createFromParcel(Parcel in) {
return new ImageItem(in);
}
public ImageItem[] newArray(int size) {
return new ImageItem[size];
}
};
public Contact(Parcel parcel) {
_id = parcel.readInt();
_description = parcel.readString();
_thumb_path = parcel.readString();
_largimage_path = parcel.readString();
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel parcel, int flags) {
parcel.writeInt(_id);
parcel.writeString(_description);
parcel.writeString(_thumb_path);
parcel.writeString(_largimage_path);
}
...
...
}
现在发送你的ImageItem对象的arraylist，只需输入
bundle.putParcelableArrayListExtra("images", imageItemList);
要检索此列表，您必须这样做，
images = (ArrayList<ImageItem>) getArguments().getParcelableArrayListExtra("images");
答案 2 :(得分：1)
您需要将您的ImageItem类实现为Serializable。
public class ImageItem implements Serializable{
// Other stuff
}
希望这会对你有所帮助。