Color theming – some words
sorsare (Found somewhere in gist) With the new theming in AppCompat, a lot of assets are tinted automatically for you via theme attributes. That has often led me to wonder "where…
Example how to hide and show floating action button while scrolling the list (code not optimized well)
//this example is for recyclerView but it can be used somewhere else recyclerView.setOnScrollListener(new RecyclerView.OnScrollListener() { @Override public void onScrollStateChanged(RecyclerView recyclerView, int newState) { super.onScrollStateChanged(recyclerView, newState); } @Override public void onScrolled(RecyclerView…
ffmpeg – extract frames every second in ~50% quality jpeg
ffmpeg -i VID_20160407_190210.mp4 -vf fps=1 -qscale:v 16 out%d.jpg
Example how to take photo and upload it’s thumbnail to your server using okhttp3 (first I convert it to jpeg)
//part when you click on item and start camera imageView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); Context context = v.getContext(); if (takePictureIntent.resolveActivity(context.getPackageManager()) !=…
Create text for empty listView
RelativeLayout lContainerLayout = new RelativeLayout(this); lContainerLayout.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, RelativeLayout.LayoutParams.FILL_PARENT)); TextView textView = new TextView(this); textView.setText("List is empty!"); RelativeLayout.LayoutParams lButtonParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); lButtonParams.addRule(RelativeLayout.CENTER_IN_PARENT); textView.setLayoutParams(lButtonParams); lContainerLayout.addView(textView); addContentView(lContainerLayout, new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, RelativeLayout.LayoutParams.FILL_PARENT)); listView.setEmptyView(lContainerLayout);
Pretty way for serialization files
Found here: http://stackoverflow.com/a/4118917/619673 Saving (w/o exception handling code): FileOutputStream fos = context.openFileOutput(fileName, Context.MODE_PRIVATE); ObjectOutputStream os = new ObjectOutputStream(fos); os.writeObject(this); os.close(); fos.close(); Loading (w/o exception handling code): FileInputStream fis = context.openFileInput(fileName);…
Simple pulling database sqlite to desktop and preview it
All what we need is to make few steps: Add in our project this line to output in log current path to database Log.d(TAG, "onCreate db: " + context.getDatabasePath("mydatabase.db")); Create…
Where android apps are stored?
Here is a very good answer: Where an app is stored very much depends on several criteria: System apps / pre-installed-bloatware-apps are stored in /system/app with privileged apps in /system/priv-app…
Dos : rename all files to to lowercase in terminal
Interesting solution found on stackoverflow. In terminal, in current folder we write: for /f "Tokens=*" %f in ('dir /l/b/a-d') do (rename "%f" "%f")
Install aspell with specific language (install dictionary) on mac
In short words, two commands: brew remove aspell brew install aspell --with-lang-pl And now, we have dictionary with pl :)