工具类

之前用

AsyncTask

现在改用rxJava

public class SaveImageUtils {

public static void imageSave(final ImageView imageView, final int id) {

Observable

.create(new Observable.OnSubscribe() {

@Override

public void call(Subscriber super ImageView> sub) {

sub.onNext(imageView);

}

}

).subscribeOn(Schedulers.io())

.observeOn(AndroidSchedulers.mainThread())

.subscribe(new MySubscriber() {

@Override

public void onNext(ImageView imageView) {

File imageFile = new File(ActivityUtils.ImagePath(), id + ".jpg");

FileOutputStream outStream = null;

try {

outStream = new FileOutputStream(imageFile);

Bitmap image = imageView.getDrawingCache();

image.compress(Bitmap.CompressFormat.JPEG, 100, outStream);

outStream.flush();

outStream.close();

Toast.makeText(UIUtils.getContext(), UIUtils.getString(R.string.save_picture_success), Toast.LENGTH_LONG).show();

} catch (IOException e) {

e.printStackTrace();

onError(e);

}

}

@Override

public void onError(Throwable e) {

Toast.makeText(UIUtils.getContext(), UIUtils.getString(R.string.save_picture_failed), Toast.LENGTH_LONG).show();

}

});

}

}

MySubscriber

public class MySubscriber extends Subscriber {

@Override

public void onStart() {

super.onStart();

}

@Override

public void onCompleted() {

}

@Override

public void onError(Throwable e) {

}

@Override

public void onNext(T t) {

}

}

//不建议使用了

package com.app.mly.utils;

import android.app.Activity;

import android.graphics.Bitmap;

import android.os.AsyncTask;

import android.os.Environment;

import android.widget.ImageView;

import android.widget.Toast;

import com.fengche.android.mly.R;

import java.io.File;

import java.io.FileOutputStream;

/**

* Created by y on 2016/1/14.

*/

public class SaveImageUtils extends AsyncTask {

Activity mActivity;

ImageView mImageView;

public SaveImageUtils(Activity activity, ImageView imageView) {

this.mImageView = imageView;

this.mActivity = activity;

}

@Override

protected String doInBackground(Bitmap... params) {

String result = mActivity.getResources().getString(R.string.save_picture_failed);

try {

String sdcard = Environment.getExternalStorageDirectory().toString();

File file = new File(sdcard + "/123");

if (!file.exists()) {

file.mkdirs();

}

File imageFile = new File(file.getAbsolutePath(), "命名" + ".jpg");

FileOutputStream outStream = null;

outStream = new FileOutputStream(imageFile);

Bitmap image = params[0];

image.compress(Bitmap.CompressFormat.JPEG, 100, outStream);

outStream.flush();

outStream.close();

result = mActivity.getResources().getString(R.string.save_picture_success, file.getAbsolutePath());

} catch (Exception e) {

e.printStackTrace();

}

return result;

}

@Override

protected void onPostExecute(String result) {

Toast.makeText(mActivity, result, Toast.LENGTH_SHORT).show();

mImageView.setDrawingCacheEnabled(false);

}

}

stirng文件下需要的几个toast

保存图片

保存失败

图片成功保存至%s目录

代码中引用

mScanCode.setOnLongClickListener(new View.OnLongClickListener() {

@Override

public boolean onLongClick(View v) {

AlertDialog.Builder builder = new AlertDialog.Builder(ShareActivity.this);

builder.setItems(new String[]{getResources().getString(R.string.save_picture)}, new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

mScanCode.setDrawingCacheEnabled(true);

Bitmap imageBitmap = mScanCode.getDrawingCache();

if (imageBitmap != null) {

new SaveImageUtils(ShareActivity.this, mScanCode).execute(imageBitmap);

}

}

});

builder.show();

return true;

}

});

总结

以上所述是小编给大家介绍的Android长按imageview把图片保存到本地的实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！