Created
August 16, 2018 07:42
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My first Android app after following the udacity course "One Million Arab Coders". the app calcutes the BMI after giving height and weight
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<?xml version="1.0" encoding="utf-8"?> | |
<LinearLayout 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:orientation="vertical" | |
android:layout_margin="10dp" | |
tools:context=".MainActivity"> | |
<TextView | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:text="Calculate you MBI" | |
android:textSize="20sp" | |
android:padding="5dp" | |
android:background="#336699" | |
android:textColor="@android:color/white" /> | |
<TextView | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:textSize="14sp" | |
android:padding="2dp" | |
android:text="@string/BMIinfo"/> | |
<LinearLayout | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:orientation="horizontal"> | |
<TextView | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="WEIGHT:"/> | |
<EditText | |
android:id="@+id/weight_edit_text" | |
android:layout_width="0dp" | |
android:layout_height="wrap_content" | |
android:layout_weight="1"/> | |
<TextView | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="KG"/> | |
</LinearLayout> | |
<LinearLayout | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:padding="5dp" | |
android:orientation="horizontal"> | |
<TextView | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="HEIGHT:"/> | |
<EditText | |
android:id="@+id/height_edit_text" | |
android:layout_width="0dp" | |
android:layout_height="wrap_content" | |
android:layout_weight="1"/> | |
<TextView | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="CM"/> | |
</LinearLayout> | |
<Button | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:padding="5dp" | |
android:text="Check BMI" | |
android:onClick="checkBMI"/> | |
<TextView | |
android:id="@+id/BMI_text_view" | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:padding="10dp" | |
android:textSize="25sp" | |
android:text="your BMI is: "/> | |
<TextView | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:textSize="20sp" | |
android:padding="5dp" | |
android:background="#336699" | |
android:textColor="@android:color/white" | |
android:text="BMI Categories"/> | |
<TextView | |
android:id="@+id/underweight_text_view" | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:textSize="14sp" | |
android:padding="2dp" | |
android:text="@string/underweight"/> | |
<TextView | |
android:id="@+id/normalweight_text_view" | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:textSize="14sp" | |
android:padding="2dp" | |
android:text="@string/normalweight"/> | |
<TextView | |
android:id="@+id/overweight_text_view" | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:textSize="14sp" | |
android:padding="2dp" | |
android:text="@string/overweight"/> | |
<TextView | |
android:id="@+id/obesity_text_view" | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:textSize="14sp" | |
android:padding="2dp" | |
android:text="@string/obesity"/> | |
</LinearLayout> |
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package com.example.myfirstapp; | |
import android.support.v7.app.AppCompatActivity; | |
import android.os.Bundle; | |
import android.view.View; | |
import android.widget.EditText; | |
import android.widget.TextView; | |
import java.text.NumberFormat; | |
import static android.graphics.Color.parseColor; | |
public class MainActivity extends AppCompatActivity { | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_main); | |
} | |
public void checkBMI(View view){ | |
EditText weight = findViewById(R.id.weight_edit_text); | |
EditText height = findViewById(R.id.height_edit_text); | |
double w = Double.valueOf(weight.getText().toString()); | |
double h = Double.valueOf(height.getText().toString()); | |
double BMI = w/(Math.pow(h/100,2)); | |
display(BMI); | |
if(BMI < 18.5) { | |
findViewById(R.id.underweight_text_view).setBackgroundColor(parseColor("#AAAAAA")); | |
}else { | |
findViewById(R.id.underweight_text_view).setBackgroundColor(parseColor("#FFFFFF")); | |
} | |
if(BMI >= 18.5 && BMI < 25){ | |
findViewById(R.id.normalweight_text_view).setBackgroundColor(parseColor("#AAAAAA")); | |
} else { | |
findViewById(R.id.normalweight_text_view).setBackgroundColor(parseColor("#FFFFFF")); | |
} | |
if(BMI >= 25 && BMI < 30){ | |
findViewById(R.id.overweight_text_view).setBackgroundColor(parseColor("#AAAAAA")); | |
}else{ | |
findViewById(R.id.overweight_text_view).setBackgroundColor(parseColor("#FFFFFF")); | |
} | |
if(BMI >= 30){ | |
findViewById(R.id.obesity_text_view).setBackgroundColor(parseColor("#AAAAAA")); | |
}else{ | |
findViewById(R.id.obesity_text_view).setBackgroundColor(parseColor("#FFFFFF")); | |
} | |
} | |
private void display(double number){ | |
TextView BMITextView = findViewById(R.id.BMI_text_view); | |
BMITextView.setText("your BMI is: "+ String.format("%.1f",number)); | |
} | |
} |
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<resources> | |
<string name="app_name">BMI Calculator</string> | |
<string name="underweight"><![CDATA[Underweight = <18.5]]></string> | |
<string name="normalweight">Normal weight = 18.5–24.9</string> | |
<string name="overweight">Overweight = 25–29.9</string> | |
<string name="obesity">Obesity = BMI of 30 or greater</string> | |
<string name="BMIinfo">BMI stands for Body Mass Index,do you have the perfect body?</string> | |
</resources> |
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