1)Floating ButtoActivity.java
package com.example.admin.snackbar; import android.os.Bundle; import android.support.design.widget.TextInputLayout; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.text.Editable; import android.text.TextUtils; import android.text.TextWatcher; import android.view.View; import android.view.WindowManager; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; /** * Created by ADMIN on 29/03/2016. */public class FloatingLabelActivity extends AppCompatActivity{ private Toolbar toolbar; private EditText inputName, inputEmail, inputPassword; private TextInputLayout inputLayoutName, inputLayoutEmail, inputLayoutPassword; private Button btnSignUp; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.floating_label_activity); toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); inputLayoutName = (TextInputLayout) findViewById(R.id.input_layout_name); inputLayoutEmail = (TextInputLayout) findViewById(R.id.input_layout_email); inputLayoutPassword = (TextInputLayout) findViewById(R.id.input_layout_password); inputName = (EditText) findViewById(R.id.input_name); inputEmail = (EditText) findViewById(R.id.input_email); inputPassword = (EditText) findViewById(R.id.input_password); btnSignUp = (Button) findViewById(R.id.btn_signup); inputName.addTextChangedListener(new MyTextWatcher(inputName)); inputEmail.addTextChangedListener(new MyTextWatcher(inputEmail)); inputPassword.addTextChangedListener(new MyTextWatcher(inputPassword)); btnSignUp.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { submitForm(); } }); } /** * Validating form */ private void submitForm() { if (!validateName()) { return; } if (!validateEmail()) { return; } if (!validatePassword()) { return; } Toast.makeText(getApplicationContext(), "Thank You!", Toast.LENGTH_SHORT).show(); } private boolean validateName() { if (inputName.getText().toString().trim().isEmpty()) { inputLayoutName.setError(getString(R.string.err_msg_name)); requestFocus(inputName); return false; } else { inputLayoutName.setErrorEnabled(false); } return true; } private boolean validateEmail() { String email = inputEmail.getText().toString().trim(); if (email.isEmpty() || !isValidEmail(email)) { inputLayoutEmail.setError(getString(R.string.err_msg_email)); requestFocus(inputEmail); return false; } else { inputLayoutEmail.setErrorEnabled(false); } return true; } private boolean validatePassword() { if (inputPassword.getText().toString().trim().isEmpty()) { inputLayoutPassword.setError(getString(R.string.err_msg_password)); requestFocus(inputPassword); return false; } else { inputLayoutPassword.setErrorEnabled(false); } return true; } private static boolean isValidEmail(String email) { return !TextUtils.isEmpty(email) && android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches(); } private void requestFocus(View view) { if (view.requestFocus()) { getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE); } } private class MyTextWatcher implements TextWatcher { private View view; private MyTextWatcher(View view) { this.view = view; } public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) { } public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) { } public void afterTextChanged(Editable editable) { switch (view.getId()) { case R.id.input_name: validateName(); break; case R.id.input_email: validateEmail(); break; case R.id.input_password: validatePassword(); break; } } } }
2)floating_lable.xml
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.design.widget.AppBarLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="?attr/colorPrimary" app:layout_scrollFlags="scroll|enterAlways" app:popupTheme="@style/ThemeOverlay.AppCompat.Light"> </android.support.v7.widget.Toolbar> </android.support.design.widget.AppBarLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="match_parent" android:layout_marginTop="?attr/actionBarSize" android:orientation="vertical" android:paddingLeft="20dp" android:paddingRight="20dp" android:paddingTop="60dp"> <android.support.design.widget.TextInputLayout android:id="@+id/input_layout_name" android:layout_width="match_parent" android:layout_height="wrap_content"> <EditText android:id="@+id/input_name" android:layout_width="match_parent" android:layout_height="wrap_content" android:singleLine="true" android:hint="@string/hint_name" /> </android.support.design.widget.TextInputLayout> <android.support.design.widget.TextInputLayout android:id="@+id/input_layout_email" android:layout_width="match_parent" android:layout_height="wrap_content"> <EditText android:id="@+id/input_email" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="textEmailAddress" android:hint="@string/hint_email" /> </android.support.design.widget.TextInputLayout> <android.support.design.widget.TextInputLayout android:id="@+id/input_layout_password" android:layout_width="match_parent" android:layout_height="wrap_content"> <EditText android:id="@+id/input_password" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="textPassword" android:hint="@string/hint_password" /> </android.support.design.widget.TextInputLayout> <Button android:id="@+id/btn_signup" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/btn_sign_up" android:background="@color/colorPrimary" android:layout_marginTop="40dp" android:textColor="@android:color/white"/> </LinearLayout> </android.support.design.widget.CoordinatorLayout>
3)style.xml
<resources> <!-- Base application theme. --><style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> <!-- Customize your theme here. --></style> <style name="MyMaterialTheme" parent="MyMaterialTheme.Base"> </style> <style name="MyMaterialTheme.Base" parent="Theme.AppCompat.Light.NoActionBar"> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <item name="colorAccent">@color/colorAccent</item> </style> </resources>4)manifest.xml<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.admin.snackbar" > <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@style/MyMaterialTheme" > <activity android:name=".MainActivity" android:label="@string/app_name" > </activity> <activity android:name=".FloatingLabelActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
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