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  • How to create Registration form in android ?

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    Here I have created a registration form in android. In my registration form i have used validation function to check inputs like email ,name,age etc. And I have also used check box , radio button and spinner function. Therefor below example will clearly described you to make Registration form.
    Step(1)- create main.xml layout file. For (Inputs data)

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"
        android:background="#9afff2">
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/NameLayout">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:text="Name"
                android:id="@+id/textView"
                android:layout_alignParentTop="true"
                android:layout_alignParentStart="true"/>
            <EditText
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:inputType="textPersonName"
                android:layout_toRightOf="@+id/textView"
                android:id="@+id/name"
                android:layout_alignTop="@+id/textView"
                android:layout_centerHorizontal="true"
                android:hint="Enter your name.." />
        </RelativeLayout>
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/Email"
            android:layout_below="@+id/NameLayout">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:text="Email"
                android:id="@+id/textView2"
                android:layout_alignParentStart="true" />
            <EditText
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:inputType="textEmailAddress"
                android:id="@+id/email"
                android:layout_toRightOf="@+id/textView2"
                android:layout_toEndOf="@+id/textView2"
                android:hint="enter your email address" />
        </RelativeLayout>
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/AgeLayout"
            android:layout_below="@+id/Email">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:text="Age"
                android:id="@+id/textView3"
                android:layout_alignParentStart="true" />
            <EditText
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:inputType="number"
                android:ems="10"
                android:id="@+id/age"
                android:layout_toRightOf="@+id/textView3"
                android:hint="Enter your age.." />
        </RelativeLayout>
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/GenderLayout"
            android:layout_below="@+id/AgeLayout">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:text="Gender"
                android:id="@+id/textView4"
                android:layout_alignParentStart="true" />
            <RadioGroup
                android:id="@+id/radioSex"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_toRightOf="@+id/textView4">
                <RadioButton
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Male"
                    android:checked="true"
                    android:id="@+id/male" />
                <RadioButton
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Female"
                    android:id="@+id/female"/>
            </RadioGroup>
        </RelativeLayout>
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/BranchLayout"
            android:layout_below="@+id/GenderLayout">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:text="Branch"
                android:id="@+id/textView5"
                android:layout_alignParentStart="true" />
            <Spinner
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:id="@+id/branch"
                android:layout_toRightOf="@+id/textView5"
                android:layout_marginStart="56dp" />
        </RelativeLayout>
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/SubmitLayout"
            android:layout_below="@+id/BranchLayout">
            <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:text="Submit"
                android:id="@+id/send"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="54dp" />
            <CheckBox
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Hindi"
                android:id="@+id/hindi"
                android:checked="false"
                android:layout_alignParentTop="true"
                android:layout_alignStart="@+id/send" />
            <CheckBox
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="English"
                android:id="@+id/english"
                android:layout_alignBottom="@+id/hindi"
                android:layout_toEndOf="@+id/hindi"
                android:checked="false" />
        </RelativeLayout>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Language"
            android:id="@+id/textView7"
            android:layout_below="@+id/BranchLayout" />
    </RelativeLayout>
    

    Step(2)- create main2.xml layout file. For(Displaying result)

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
        android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"
        android:background="#3e82ff">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Name"
            android:id="@+id/textView6"
            android:layout_alignParentTop="true"
            android:layout_alignParentStart="true" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="New Text"
            android:id="@+id/name"
            android:layout_alignBottom="@+id/textView6"
            android:layout_centerHorizontal="true" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:id="@+id/textView8"
            android:layout_marginTop="50dp"
            android:layout_below="@+id/textView6"
            android:layout_alignParentStart="true" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Email"
            android:id="@+id/textView9"
            android:layout_alignTop="@+id/textView8"
            android:layout_alignParentStart="true" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="New Text"
            android:id="@+id/email"
            android:layout_alignBottom="@+id/textView9"
            android:layout_alignStart="@+id/name" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Age"
            android:id="@+id/textView11"
            android:layout_marginTop="47dp"
            android:layout_below="@+id/textView8"
            android:layout_alignParentStart="true" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="New Text"
            android:id="@+id/age"
            android:layout_alignBottom="@+id/textView11"
            android:layout_centerHorizontal="true" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Gender"
            android:id="@+id/textView13"
            android:layout_centerVertical="true"
            android:layout_alignParentStart="true" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Branch"
            android:id="@+id/textView15"
            android:layout_marginTop="61dp"
            android:layout_below="@+id/textView13"
            android:layout_alignEnd="@+id/textView13" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="New Text"
            android:id="@+id/gender"
            android:layout_alignTop="@+id/textView13"
            android:layout_alignStart="@+id/age" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="New Text"
            android:id="@+id/branch"
            android:layout_alignBottom="@+id/textView15"
            android:layout_centerHorizontal="true" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Language"
            android:id="@+id/textView10"
            android:layout_below="@+id/branch"
            android:layout_alignParentStart="true"
            android:layout_marginTop="39dp" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="New Text"
            android:id="@+id/language"
            android:layout_alignBottom="@+id/textView10"
            android:layout_alignStart="@+id/branch" />
    </RelativeLayout>
    

    Step(3)-MainActivity code.

    package com.tiwari.rajshekhar.sampleretry;
    import android.app.Activity;
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.view.View;
    import android.widget.AdapterView;
    import android.widget.ArrayAdapter;
    import android.widget.Button;
    import android.widget.CheckBox;
    import android.widget.EditText;
    import android.widget.RadioButton;
    import android.widget.RadioGroup;
    import android.widget.Spinner;
    import java.util.IllegalFormatCodePointException;
    import java.util.regex.Matcher;
    import java.util.regex.Pattern;
    public class MainActivity extends Activity {
            EditText Name;
        EditText Email;
        EditText Age;
        RadioGroup radioSex;
        Spinner branch;
        ArrayAdapter<CharSequence>adapter;
        CheckBox hindi,english;
        Button Submit;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            //View form Button
            Button button =(Button)findViewById(R.id.send);
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (Name.getText().toString().trim().isEmpty()){
                        Name.setError("Please enter your name");
                        Name.requestFocus();
                    }
                 else if (!isValideEmail(Email.getText().toString()))
                    {
                        Email.setError("Please enter your Email");
                        Email.requestFocus();
                    }
                  else if (Age.getText().toString().trim().isEmpty()){
                        Age.setError("Please enter your");
                        Age.requestFocus();
                    }
                    else {
                        sendMessage();
                    }
                }
            });
            Name=(EditText)findViewById(R.id.name);
            Email=(EditText)findViewById(R.id.email);
            Age=(EditText)findViewById(R.id.age);
            radioSex=(RadioGroup)findViewById(R.id.radioSex);
            branch=(Spinner)findViewById(R.id.branch);
            adapter =ArrayAdapter.createFromResource(this,R.array.branch,android.R.layout.simple_spinner_item);
            adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
            hindi=(CheckBox)findViewById(R.id.hindi);
            english=(CheckBox)findViewById(R.id.english);
            branch.setAdapter(adapter);
            branch.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
                @Override
                public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                }
                @Override
                public void onNothingSelected(AdapterView<?> parent) {
                }
            });
        }
        private boolean isValideEmail(String Email){
            String Email_PATTERN = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
                    + "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
            Pattern pattern = Pattern.compile(Email_PATTERN);
            Matcher matcher = pattern.matcher(Email);
            return matcher.matches();
        }
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.menu_main, menu);
            return true;
        }
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            // Handle action bar item clicks here. The action bar will
            // automatically handle clicks on the Home/Up button, so long
            // as you specify a parent activity in AndroidManifest.xml.
            int id = item.getItemId();
            //noinspection SimplifiableIfStatement
            if (id == R.id.action_settings) {
                return true;
            }
            return super.onOptionsItemSelected(item);
        }
        public void sendMessage(){
            Intent intent =new Intent(MainActivity.this,MainActivity.class);
            intent.putExtra("name",Name.getText().toString());
            intent.putExtra("email",Email.getText().toString());
            intent.putExtra("age",Age.getText().toString());
            //get selected radio button from radioGroup
            int selectedId =radioSex.getCheckedRadioButtonId();
              //find the radiobutton by retunend id
            RadioButton radioSexButton = (RadioButton)findViewById(selectedId);
            intent.putExtra("radioSex", radioSexButton.getText());
            intent.putExtra("branch",branch.getSelectedItem().toString());
            if(hindi.isChecked()&&english.isChecked())
            {
                intent.putExtra("language","Hindi,English");
            }
           else if(hindi.isChecked())
            {
                intent.putExtra("language","Hindi");
            }
           else if(english.isChecked())
            {
                intent.putExtra("language","English");
            }
            else
            {
                intent.putExtra("language","None");
            }
            startActivity(intent);
        }
    }
    

    Step(4)-Main2Activity code.(Second activity)

    package com.tiwari.rajshekhar.sampleretry;
    import android.app.Activity;
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.widget.TextView;
    import org.w3c.dom.Text;
    public class Main2Activity extends Activity {
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main2);
            Intent intent=getIntent();
            TextView name =(TextView)findViewById(R.id.name);
             name.setText(intent.getStringExtra("name"));
            TextView email =(TextView)findViewById(R.id.email);
             email.setText(intent.getStringExtra("email"));
            TextView age =(TextView)findViewById(R.id.age);
             age.setText(intent.getStringExtra("age"));
            TextView gender=(TextView)findViewById(R.id.gender);
            gender.setText(intent.getStringExtra("radioSex"));
            TextView branch=(TextView)findViewById(R.id.branch);
            branch.setText(intent.getStringExtra("branch"));
            TextView language=(TextView)findViewById(R.id.language);
            language.setText(intent.getStringExtra("language"));
        }
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.menu_main2, menu);
            return true;
        }
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            // Handle action bar item clicks here. The action bar will
            // automatically handle clicks on the Home/Up button, so long
            // as you specify a parent activity in AndroidManifest.xml.
            int id = item.getItemId();
            //noinspection SimplifiableIfStatement
            if (id == R.id.action_settings) {
                return true;
            }
            return super.onOptionsItemSelected(item);
        }
    }/ Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.menu_main2, menu);
            return true;
        }
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            // Handle action bar item clicks here. The action bar will
            // automatically handle clicks on the Home/Up button, so long
            // as you specify a parent activity in AndroidManifest.xml.
            int id = item.getItemId();
            //noinspection SimplifiableIfStatement
            if (id == R.id.action_settings) {
                return true;
            }
            return super.onOptionsItemSelected(item);
        }
    }
    

    Step(5)Add item in string.xml(resoureces).For adding radio button and spinner.

    <resources>
        <string name="app_name">sampleRetry</string>
        <string name="hello_world">Hello world!</string>
        <string name="action_settings">Settings</string>
        <string name="Male">male</string>
        <string name="Female">female</string>
        <string name="title_activity_main2">Main2Activity</string>
        <string name="select_branch">Select Trade</string>
        <string-array name="branch">
            <item>CS</item>
            <item>EC</item>
            <item>IT</item>
            <item>EE</item>
        </string-array>
    </resources>
    

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