diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..63cb77a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+*.iml
+.gradle
+/local.properties
+.idea
+.DS_Store
+/build
+/captures
+.externalNativeBuild
diff --git a/app/.gitignore b/app/.gitignore
new file mode 100644
index 0000000..63cb77a
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1,8 @@
+*.iml
+.gradle
+/local.properties
+.idea
+.DS_Store
+/build
+/captures
+.externalNativeBuild
diff --git a/app/build.gradle b/app/build.gradle
new file mode 100644
index 0000000..ef909fe
--- /dev/null
+++ b/app/build.gradle
@@ -0,0 +1,35 @@
+apply plugin: 'com.android.application'
+
+android {
+ compileSdkVersion 27
+ defaultConfig {
+ applicationId "ru.nikijava.exercise1"
+ minSdkVersion 19
+ targetSdkVersion 27
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+ buildToolsVersion '27.0.3'
+ compileOptions {
+ sourceCompatibility JavaVersion.VERSION_1_8
+ targetCompatibility JavaVersion.VERSION_1_8
+ }
+}
+
+dependencies {
+ implementation fileTree(include: ['*.jar'], dir: 'libs')
+ implementation 'com.android.support:appcompat-v7:27.1.1'
+ implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.2'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+ implementation 'com.android.support:recyclerview-v7:27.1.1'
+ implementation 'com.android.support:design:27.1.1'
+}
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/app/src/androidTest/java/ru/nikijava/exercise1/ExampleInstrumentedTest.java b/app/src/androidTest/java/ru/nikijava/exercise1/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..b110918
--- /dev/null
+++ b/app/src/androidTest/java/ru/nikijava/exercise1/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package ru.nikijava.exercise1;
+
+import static org.junit.Assert.assertEquals;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see Testing documentation
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+ @Test
+ public void useAppContext() {
+ // Context of the app under test.
+ Context appContext = InstrumentationRegistry.getTargetContext();
+
+ assertEquals("ru.nikijava.exercise1", appContext.getPackageName());
+ }
+}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..41e3f99
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,27 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/java/ru/nikijava/exercise1/MainActivity.java b/app/src/main/java/ru/nikijava/exercise1/MainActivity.java
new file mode 100644
index 0000000..af11360
--- /dev/null
+++ b/app/src/main/java/ru/nikijava/exercise1/MainActivity.java
@@ -0,0 +1,57 @@
+package ru.nikijava.exercise1;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+public class MainActivity extends AppCompatActivity {
+
+ private EditText etMessage;
+ private Button btnPreview;
+ private Button btnClear;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+ initView();
+ btnPreview.setOnClickListener(this::showPreview);
+ btnClear.setOnClickListener(v -> etMessage.setText(""));
+ }
+
+ private void initView() {
+ etMessage = findViewById(R.id.etMessage);
+ btnPreview = findViewById(R.id.btnPreview);
+ btnClear = findViewById(R.id.btnClear);
+ }
+
+ private String getMessage() {
+ return etMessage.getText().toString();
+ }
+
+ private void showKeyboard() {
+ etMessage.requestFocus();
+ InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+ if (imm != null) imm.showSoftInput(etMessage, InputMethodManager.SHOW_IMPLICIT);
+ }
+
+
+ @Override
+ protected void onResume() {
+ super.onResume();
+ etMessage.postDelayed(this::showKeyboard, 300);
+ }
+
+ private void showPreview(View v) {
+ if (!etMessage.getText().toString().trim().equals("")) {
+ SendEmailActivity.start(getMessage(), this);
+ } else {
+ Toast.makeText(this, R.string.message_empty_enter, Toast.LENGTH_LONG).show();
+ }
+ }
+}
diff --git a/app/src/main/java/ru/nikijava/exercise1/SendEmailActivity.java b/app/src/main/java/ru/nikijava/exercise1/SendEmailActivity.java
new file mode 100644
index 0000000..f5ae18b
--- /dev/null
+++ b/app/src/main/java/ru/nikijava/exercise1/SendEmailActivity.java
@@ -0,0 +1,57 @@
+package ru.nikijava.exercise1;
+
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+public class SendEmailActivity extends AppCompatActivity {
+
+ private static final String KEY_MESSAGE = "key_message";
+ private static final String emailTo = "nikrestinpiece@gmail.com";
+
+ private Button btnEmail;
+ private TextView tvMessage;
+
+ private String message;
+
+ public static void start(String message, Context context) {
+ Intent intent = new Intent(context, SendEmailActivity.class);
+ intent.putExtra(KEY_MESSAGE, message);
+ context.startActivity(intent);
+ }
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_send_email);
+ initView();
+
+ message = getIntent().getStringExtra(KEY_MESSAGE);
+ tvMessage.setText(message);
+
+ btnEmail.setOnClickListener(v -> startEmailClient());
+ }
+
+ private void initView() {
+ btnEmail = findViewById(R.id.btnEmail);
+ tvMessage = findViewById(R.id.tvMessage);
+ }
+
+ private void startEmailClient() {
+ Intent intent = new Intent(Intent.ACTION_SENDTO);
+ intent.setData(Uri.parse("mailto:" + emailTo));
+ intent.putExtra(Intent.EXTRA_TEXT, message);
+ intent.putExtra(Intent.EXTRA_SUBJECT, "Hello, guys!");
+ if (intent.resolveActivity(getPackageManager()) != null) {
+ startActivity(intent);
+ } else {
+ Toast.makeText(this, R.string.message_no_email_client, Toast.LENGTH_LONG).show();
+ }
+ }
+
+}
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..07f9e85
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+
+
+
+
+