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Question

so this app is for me to track my bicycle rides. It is my first project using fragments. I want to see on fragment “gesamt” all bikerides i did over the year (kilometer and altitude).
So i created two progressbars (the max of the progressbars are the data from last year), and a surface to add racing bicycle and a surface to add mountainbike rides.
Once you enter your kilometer and altitude for, let´s say racing bicycle 500/5000 and press the add button
a TextView under the progressbar should display 500 / max and 5000 / max.

Code:

package com.example.fahrradapp;

import android.annotation.SuppressLint;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;


public class Gesamt extends Fragment {

    ProgressBar progressBarkm, progressBarhm;
    Button btnrradd, btnmtbadd, btnsave;
    EditText kmrr, hmrr, kmmtb, hmmtb;
    TextView percentkm, percenthm;


//This app is to track the kilometer and altitude difference i made over the year.

    @SuppressLint("SetTextI18n")
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

        View v = inflater.inflate(R.layout.gesamt, container, false);

        progressBarkm = v.findViewById(R.id.progressbarkm);
        progressBarhm = v.findViewById(R.id.progressbarhm);
        btnrradd = v.findViewById(R.id.btnrradd);
        btnmtbadd = v.findViewById(R.id.btnmtbadd);
        btnsave = v.findViewById(R.id.btnsave);
        kmrr = v.findViewById(R.id.kmrr);
        hmrr = v.findViewById(R.id.hmrr);
        kmmtb = v.findViewById(R.id.kmmtb);
        hmmtb = v.findViewById(R.id.hmmtb);
        percentkm = v.findViewById(R.id.percentkm);
        percenthm = v.findViewById(R.id.percenthm);



        //Shows the progress of both progressbars (for kilometer and altitude)
        //At the start of the app it should display 0 /2492 and 0 / 37557
          int progressgesamtkm = progressBarkm.getProgress();
          percentkm.setText(progressgesamtkm + " / " + progressBarkm.getMax());
          int progressgesamthm = progressBarhm.getProgress();
          percenthm.setText(progressgesamthm + " / " + progressBarhm.getMax());



        //Button for the bike type racing bicycle
        btnrradd.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            int rrkmz1 = Integer.parseInt(kmrr.getText().toString()); //get the entered KM to string
            int rrkmz2 = progressBarkm.getProgress();  //get the progress of KM bar
            int rrkmz3 = rrkmz1 + rrkmz2; //add both

            try {
                percentkm.setText(rrkmz3 + " / " + progressBarkm.getMax()); //change the TextView under progressbar from 0 /2492 to the new value

            } catch (NumberFormatException e){
                Toast.makeText(getActivity(), "Fail", Toast.LENGTH_SHORT).show();
                }

            int rrhmz1 = Integer.parseInt(hmrr.getText().toString()); //same code like above but for altitude
            int rrhmz2 = progressBarhm.getProgress();
            int rrhmz3 = rrhmz1 + rrhmz2;

            try {
                percenthm.setText(rrhmz3 + " / " + progressBarhm.getMax());
            } catch (NumberFormatException e){
                Toast.makeText(getActivity(), "Fail", Toast.LENGTH_SHORT).show();
            }

            progressBarkm.setProgress(rrkmz3);
            progressBarhm.setProgress(rrhmz3);

                kmrr.setText(null);
                hmrr.setText(null);
            }
        });

        //this is exactly the same button like "btnrradd" but for mountainbikes
        //also, this button crashes the app
        btnmtbadd.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            int mtbkmz1 = Integer.parseInt(kmmtb.getText().toString());
            int mtbkmz2 = progressBarkm.getProgress();
            int mtbkmz3 = mtbkmz1 + mtbkmz2;

            try {
                percentkm.setText(mtbkmz3 + " / " + progressBarkm.getMax());

            } catch (NumberFormatException e){
                Toast.makeText(getActivity(), "Fail", Toast.LENGTH_SHORT).show();
            }

            int mtbhmz1 = Integer.parseInt(hmrr.getText().toString());
            int mtbhmz2 = progressBarhm.getProgress();
            int mtbhmz3 = mtbhmz1 + mtbhmz2;

            try {
                percenthm.setText(mtbhmz3 + " / " + progressBarhm.getMax());
            } catch (NumberFormatException e){
                Toast.makeText(getActivity(), "Fail", Toast.LENGTH_SHORT).show();
            }

            progressBarkm.setProgress(mtbkmz3);
            progressBarhm.setProgress(mtbhmz3);

                kmmtb.setText(null);
                hmmtb.setText(null);
            }
        });

        //not implemented yet, i want to safe the values of both TextViews under the progressbars.
        btnsave.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        });

        return v;

    }
}

XML code:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="20dp"
    android:background="#EEf5DB"
    >

    <TextView
        android:id="@+id/kmgesamt"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="10dp"
        android:background="#FE5F55"
        android:gravity="center"
        android:text=" Kilometer gesamt "
        android:textColor="@color/black"
        android:textSize="25sp"
        android:textStyle="italic"></TextView>

    <ProgressBar
        android:id="@+id/progressbarkm"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scaleY="1.5"
        android:progress="0"
        android:max="2492"
        android:layout_marginTop="10dp"
        android:progressTint="#4F6367"
        android:background="#B8D8D8"
        android:progressDrawable="@drawable/progressbarkm"
        />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="22sp"
        android:textStyle="italic"
        android:layout_gravity="center"
        android:textColor="@color/black"
        android:id="@+id/percentkm"
        android:layout_marginTop="5dp"/>

    <TextView
        android:id="@+id/hmgesamt"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=" Höhenmeter gesamt "
        android:textSize="25sp"
        android:textColor="@color/black"
        android:layout_gravity="center"
        android:gravity="center"
        android:background="#FE5F55"
        android:textStyle="italic"
        android:layout_marginTop="20dp">
    </TextView>

    <ProgressBar
        android:id="@+id/progressbarhm"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scaleY="1.5"
        android:progress="0"
        android:max="37557"
        android:layout_marginTop="10dp"
        android:progressTint="#4F6367"
        android:background="#B8D8D8"
        android:progressDrawable="@drawable/progressbarkm"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="22sp"
        android:textStyle="italic"
        android:layout_gravity="center"
        android:textColor="@color/black"
        android:id="@+id/percenthm"
        android:layout_marginTop="5dp"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="4dp"
        android:background="#7A9E9F"
        android:layout_marginTop="20dp"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="20dp">


        <EditText
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="KM Rennrad"
            android:layout_marginLeft="20dp"
            android:textColor="@color/black"
            android:id="@+id/kmrr"
            android:inputType="number">

        </EditText>





    </LinearLayout>


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="10dp">


        <EditText
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="HM Rennrad"
            android:layout_marginLeft="20dp"
            android:textColor="@color/black"
            android:id="@+id/hmrr"
            android:inputType="number">

        </EditText>

        <Button
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:text="Add"
            android:textColor="@color/black"
            android:layout_marginLeft="40dp"
            android:layout_marginRight="50dp"
            android:backgroundTint="#7A9E9F"
            android:textSize="18sp"
            android:id="@+id/btnrradd"
            >
        </Button>


    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="4dp"
        android:background="#7A9E9F"
        android:layout_marginTop="20dp"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="20dp">


        <EditText
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="KM MTB"
            android:layout_marginLeft="20dp"
            android:textColor="@color/black"
            android:id="@+id/kmmtb"
            android:inputType="number">

        </EditText>





    </LinearLayout>


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="10dp">


        <EditText
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="HM MTB"
            android:layout_marginLeft="20dp"
            android:textColor="@color/black"
            android:id="@+id/hmmtb"
            android:inputType="number">

        </EditText>

        <Button
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:text="Add"
            android:textColor="@color/black"
            android:layout_marginLeft="40dp"
            android:layout_marginRight="50dp"
            android:backgroundTint="#7A9E9F"
            android:textSize="18sp"
            android:id="@+id/btnmtbadd"
            >
        </Button>


    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="4dp"
        android:background="#7A9E9F"
        android:layout_marginTop="20dp"/>

    <Button
        android:layout_width="110dp"
        android:layout_height="wrap_content"
        android:text="Save"
        android:textColor="@color/black"
        android:backgroundTint="#7A9E9F"
        android:textSize="20sp"
        android:id="@+id/btnsave"
        android:layout_gravity="center"
        android:layout_marginTop="20dp">

    </Button>


</LinearLayout>

In my mind the btnmtbadd should work perfectly fine since the btnrradd has basically the same code and works.
But if i enter values for KM and HM for my mountainbike and press the add button the app crashes.
If i do the same for racing bicycle it shows exactly what it should show.

Thiết kế website giá rẻ

Danh mục

I have two buttons with the exact same code, one works the other crashes the app, why?