How to Debug android App over WIFI(without Root) in android studio Adb

1.you need to connect your device to your computer via USB cable .Make sure Debugging is working .you can check if it shows up when running    adb devices.

C:\Users\Developer\AppData\Local\Android\Sdk\platform-tools>adb devices
        List of devices attached
        S980601711B01366        device

2.Run adb tcpip 5555

C:\Users\Developer\AppData\Local\Android\Sdk\platform-tools>adb tcpip 5555  

      restarting in TCP mode port: 5555

2.Disconnect your device(remove the usb )

4.Go to the settings ->About phone ->status view the IP address of your phone .

5.Run adb connect <IP address of uour device here>:5555

C:\Users\Developer\AppData\Local\Android\Sdk\platform-tools>adb connect 192.168.1.100:5555   
     connected to 192.168.1.100:5555

6.If you run adb devices again ,you should see your device.
C:\Users\Developer\AppData\Local\Android\Sdk\platform-tools>adb devices
        List of devices attached
        192.168.1.100:5555       device


Now you can execute adb command or use IDE for android .

Fix MTP driver Installation on Windows 10

Fix MTP driver Installation on Windows 10

C:\Windows\INF\wpmdmtp.inf

wpmdmtp.inf is a file related to MTP and installing it manually can possibly 

resolve your issues is a file related to MTP and installing it manually can 

possibly resolve your issues

Right-click on the wpmdmtp.inf file and select Install
now the problem solved.

How to get string if length is more than 50 after 50 it split into another string ?

String st = "A string is a data type used in programming,

 such as an integer and floating point unit,

but is used to represent text rather than numbers";
if (st.length() > 50) {
    int comma = st.indexOf(',', 50);
    if (comma >= 0) {

        //Bit before comma        String partOne = st.substring(0, comma);

        //Bit after comma        String partTwo = st.substring(comma);
        Log.e("string partOne", partOne);
        Log.e("string partTwo", partTwo);
    }
}

Parses a specific value from string against a specific key for xml format data l̥

 Parses a specific value from string against a specific key for xml format data l̥

private String getValueFromString(String key, String input) {
    if (!AppUtility.isNullOrEmpty(input)) {
        try {
            String match = key.toLowerCase() + "=\"";
            String[] dataArray1 = input.split(match);
            String[] dataArray2;
            if (dataArray1 != null && (dataArray1.length > 0)) {
                int size = dataArray1.length;
                if (size > 1) {
                    dataArray2 = dataArray1[1].split("\"");
                    return dataArray2[0].trim();
                } else {
                    match = key.toUpperCase() + "=\"";
                    dataArray1 = input.split(match);
                    if (dataArray1 != null && (dataArray1.length > 0)) {
                        size = dataArray1.length;
                        if (size > 1) {
                            dataArray2 = dataArray1[1].split("\"");
                            return dataArray2[0].trim();
                        }
                    }
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return " ";/*empty string*/
}

Add quotation at the start and end of each line of string word in Notepad++ and make array in java

1.Find (in regular expression mode):
        (.+)

        Replace with:
        "\1"
        This adds the quotes:
        "amit"        "programming "        "code "        "tech"        

 2.Find (in extended mode):
        \r\n

   Replace with (with a space after the comma, not shown):
        ,

  This converts the lines into a comma-separated list:
        "amit", "programming", "code", "tech"

Number format in indian style RS in java android

import java.text.Format;
import java.text.NumberFormat;
import java.util.Locale;

Code:-

Format format = NumberFormat.getCurrencyInstance(new Locale("en", "in"));
     

Log.e("valueindianstyle",format.format("10000000"));

OUTPUT: Rs 1,00,00,000

move a file into another directory location in android with java programmatically

/*move a file into another directory location in android with programmatically*/

   private void moveFile(File file, File dir, File deteleold) throws IOException {

    File newFile = new File(dir, file.getName());
    FileChannel outputChannel = null;
    FileChannel inputChannel = null;
    try {
        outputChannel = new FileOutputStream(newFile).getChannel();
        inputChannel = new FileInputStream(file).getChannel();
        inputChannel.transferTo(0, inputChannel.size(), outputChannel);
        inputChannel.close();
        file.delete();/*remove the file */
    } finally {
        if (inputChannel != null) inputChannel.close();
        if (outputChannel != null) outputChannel.close();
    }

}

Get RecyclerViewAdapter onclick position in main activity

You can achieve this by creating an interface inside 

your adapter for an itemclicklistener and then you can

 set onItemClickListener from your MainActivity.

Somewhere inside your RecyclerViewAdapter you would

 need the following:



private onRecyclerViewItemClickListener mItemClickListener;


public void setOnItemClickListener(onRecyclerViewItemClickListener mItemClickListener) {

    this.mItemClickListener = mItemClickListener;
}


public interface onRecyclerViewItemClickListener {

    void onItemClickListener(View view, int position);
}


Then inside your ViewHolder (which I've added as an inner class inside my adapter),

 you would apply the listener to the components you'd like the user to click, like so:

 class RecyclerViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

    public ImageView imageview;

    RecyclerViewHolder(View view) {

        super(view);

        this.imageview = (ImageView) view

                .findViewById(R.id.image);

        imageview.setOnClickListener(this);
    }


    @Override

    public void onClick(View v) {

        if (mItemClickListener != null) {

            mItemClickListener.onItemClickListener(v, getAdapterPosition());
        }
    }
}

This example shows an onClickListener being applied to the image inside a ViewHolder.
To implement this code, you would setOnItemClickListener to your adapter 

inside MainActivity as shown above.


 recyclerView.setAdapter(adapter);// set adapter on recyclerview

            adapter.notifyDataSetChanged();// Notify the adapter

            adapter.setOnItemClickListener(new RecyclerViewAdapter.onRecyclerViewItemClickListener() {

    @Override

    public void onItemClickListener(View view, int position) {

        Switch (view.getId()) {

            case R.id.letter:
                //logic here
                break;

            case R.id.firstname:

                //logic here
                break;
        ....            

        }
    }
});

How to use fragment method in Main Activity class

Create interface

public interface ListenFromActivity {    void doSomethingInFragment();}

In Activity class keep refrence of ListenFromActivity interface

public ListenFromActivity activityListener;   

Make public method to set listener

public void setActivityListener(ListenFromActivity activityListener) {        this.activityListener = activityListener;    }

Add some trigger point in activity class, here I have used user interaction

   @Override    public void onUserInteraction() {        super.onUserInteraction();

        if (null != activityListener) {            activityListener.doSomethingInFragment();        }    }

Now in Fragment class

make your fragment implement interface class

public class SomeFragment extends Fragment implements ListenFromActivity

Android studio will prompt you to implement method of interface in fragment

void doSomethingInFragment(){//Add your code here }

Final part part listener instance to activity like this in fragment onCreate method

((ListnerActivity) getActivity()).setActivityListener(SomeFragment.this);

DONE!!. now you can call fragment method from activity.