Android长按imageview把图片保存到本地的实例代码

2023-09-19 08:15:05 120

工具类

之前用

AsyncTask

现在改用rxJava

publicclassSaveImageUtils{
publicstaticvoidimageSave(finalImageViewimageView,finalintid){
Observable
.create(newObservable.OnSubscribe(){
@Override
publicvoidcall(Subscribersub){
sub.onNext(imageView);
}
}
).subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(newMySubscriber(){
@Override
publicvoidonNext(ImageViewimageView){
FileimageFile=newFile(ActivityUtils.ImagePath(),id+".jpg");
FileOutputStreamoutStream=null;
try{
outStream=newFileOutputStream(imageFile);
Bitmapimage=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(IOExceptione){
e.printStackTrace();
onError(e);
}
}
@Override
publicvoidonError(Throwablee){
Toast.makeText(UIUtils.getContext(),UIUtils.getString(R.string.save_picture_failed),Toast.LENGTH_LONG).show();
}
});
}
}

MySubscriber

publicclassMySubscriberextendsSubscriber{
@Override
publicvoidonStart(){
super.onStart();
}
@Override
publicvoidonCompleted(){
}
@Override
publicvoidonError(Throwablee){
}
@Override
publicvoidonNext(Tt){
}
}

//不建议使用了
packagecom.app.mly.utils;
importandroid.app.Activity;
importandroid.graphics.Bitmap;
importandroid.os.AsyncTask;
importandroid.os.Environment;
importandroid.widget.ImageView;
importandroid.widget.Toast;
importcom.fengche.android.mly.R;
importjava.io.File;
importjava.io.FileOutputStream;
/**
*Createdbyyon2016/1/14.
*/
publicclassSaveImageUtilsextendsAsyncTask{
ActivitymActivity;
ImageViewmImageView;
publicSaveImageUtils(Activityactivity,ImageViewimageView){
this.mImageView=imageView;
this.mActivity=activity;
}
@Override
protectedStringdoInBackground(Bitmap...params){
Stringresult=mActivity.getResources().getString(R.string.save_picture_failed);
try{
Stringsdcard=Environment.getExternalStorageDirectory().toString();
Filefile=newFile(sdcard+"/123");
if(!file.exists()){
file.mkdirs();
}
FileimageFile=newFile(file.getAbsolutePath(),"命名"+".jpg");
FileOutputStreamoutStream=null;
outStream=newFileOutputStream(imageFile);
Bitmapimage=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(Exceptione){
e.printStackTrace();
}
returnresult;
}
@Override
protectedvoidonPostExecute(Stringresult){
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(newView.OnLongClickListener(){
@Override
publicbooleanonLongClick(Viewv){
AlertDialog.Builderbuilder=newAlertDialog.Builder(ShareActivity.this);
builder.setItems(newString[]{getResources().getString(R.string.save_picture)},newDialogInterface.OnClickListener(){
@Override
publicvoidonClick(DialogInterfacedialog,intwhich){
mScanCode.setDrawingCacheEnabled(true);
BitmapimageBitmap=mScanCode.getDrawingCache();
if(imageBitmap!=null){
newSaveImageUtils(ShareActivity.this,mScanCode).execute(imageBitmap);
}
}
});
builder.show();
returntrue;
}
});

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毛票票网站的支持！

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Android长按imageview把图片保存到本地的实例代码

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