0

I am trying to learn the android development by my self as I was trying to make a simple text changing app using a button and a text view but while running it on my own mobile using USB it started showing, unfortunately, the app has stopped. if you don't mind in helping me to understand y this error is coming and how to resolve it.

MainActivity.java

 package com.nanb.wishes;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity  {
TextView txt1, txt2;
Button btn;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final TextView txt1 = (TextView) findViewById(R.id.txt1);
    final TextView txt2 = (TextView) findViewById(R.id.txt2);
    Button btn = (Button) findViewById(R.id.btn);

    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            txt1.setText("Happy birthday to a special person who is bringing so much joy with her smile. I am thankful for every moment we spend together, and I wish your happiness never ends.");
            txt2.setText("");
        }
    });

    btn.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View view) {
            txt1.setText(" May this day be as sunny as your smile, and as beautiful as you are. You shine every day, but on this day you will shine the brightest. Happy Birthday");
            txt2.setText("");
            return true;
        }
    });
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 
 xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/birthday"
tools:context=".MainActivity">

<TextView
    android:id="@+id/txt1"
    android:layout_width="328dp"
    android:layout_height="113dp"
    android:layout_marginStart="38dp"
    android:layout_marginTop="203dp"
    android:layout_marginEnd="61dp"
    android:layout_marginBottom="464dp"
    android:fontFamily="@font/aclonica"
    android:text="@string/welcome"
    android:textSize="20dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<TextView
    android:id="@+id/txt2"
    android:layout_width="325dp"
    android:layout_height="107dp"
    android:layout_marginStart="38dp"
    android:layout_marginEnd="61dp"
    android:layout_marginBottom="332dp"
    android:fontFamily="@font/aclonica"
    android:text="@string/step"
    android:textSize="20dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/txt1" />

<Button
    android:id="@+id/btn"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="142dp"
    android:layout_marginTop="83dp"
    android:layout_marginEnd="168dp"
    android:layout_marginBottom="201dp"
    android:background="@drawable/button"
    android:padding="10dp"
    android:text="Click Here"
    android:textSize="16dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/txt2" />

logcat

 08-02 15:34:04.717 31123-31123/com.nanb.wishes E/AndroidRuntime: FATAL 
EXCEPTION: main
Process: com.nanb.wishes, PID: 31123
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nanb.wishes/com.nanb.wishes.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class androidx.constraintlayout.widget.ConstraintLayout
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2335)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2397)
    at android.app.ActivityThread.access$800(ActivityThread.java:151)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1310)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5268)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697)
 Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class androidx.constraintlayout.widget.ConstraintLayout
    at android.view.LayoutInflater.createView(LayoutInflater.java:633)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:482)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
    at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
    at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
    at com.nanb.wishes.MainActivity.onCreate(MainActivity.java:20)
    at android.app.Activity.performCreate(Activity.java:6033)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2288)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2397) 
    at android.app.ActivityThread.access$800(ActivityThread.java:151) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1310) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:135) 
    at android.app.ActivityThread.main(ActivityThread.java:5268) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:372) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697) 
 Caused by: java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Constructor.newInstance(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
    at android.view.LayoutInflater.createView(LayoutInflater.java:607)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:482) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:365) 
    at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469) 
    at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
    at com.nanb.wishes.MainActivity.onCreate(MainActivity.java:20) 
    at android.app.Activity.performCreate(Activity.java:6033) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2288) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2397) 
    at android.app.ActivityThread.access$800(ActivityThread.java:151) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1310) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:135) 
    at android.app.ActivityThread.main(ActivityThread.java:5268) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:372) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697) 
 Caused by: android.content.res.Resources$NotFoundException: Resource "com.nanb.wishes:drawable/birthday" (7f070055)  is not a Drawable (color or path): TypedValue{t=0x1/d=0x7f070055 a=-1 r=0x7f070055}
    at android.content.res.Resources.loadDrawableForCookie(Resources.java:2456)
    at android.content.res.Resources.loadDrawable(Resources.java:2396)
    at android.content.res.TypedArray.getDrawable(TypedArray.java:749)
    at android.view.View.<init>(View.java:3748)
    at android.view.ViewGroup.<init>(ViewGroup.java:498)
    at android.view.ViewGroup.<init>(ViewGroup.java:494)
    at android.view.ViewGroup.<init>(ViewGroup.java:490)
    at androidx.constraintlayout.widget.ConstraintLayout.<init>(ConstraintLayout.java:575)
    at java.lang.reflect.Constructor.newInstance(Native Method) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:288) 
    at android.view.LayoutInflater.createView(LayoutInflater.java:607) 
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:482) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:365) 
    at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469) 
    at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
    at com.nanb.wishes.MainActivity.onCreate(MainActivity.java:20) 
    at android.app.Activity.performCreate(Activity.java:6033) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2288) 
    at `enter code here`android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2397) 
    at android.app.ActivityThread.access$800(ActivityThread.java:151) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1310) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:135) 
    at android.app.ActivityThread.main(ActivityThread.java:5268) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:372) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697) 
 08-02 15:39:05.031 31123-31123/? I/Process: Sending signal. PID: 31123 SIG: 9
Jaymin
  • 2,879
  • 3
  • 19
  • 35
Academy for Brilliance
  • 27
  • 1
  • 8
  • Make sure you have added `dependencies` of `implementation 'androidx.constraintlayout:constraintlayout:1.1.3'` – AskNilesh Aug 02 '19 at 10:20
  • Error occurring in `ConstraintLayout`, so check this link it may helps you https://stackoverflow.com/questions/52882606/error-inflating-class-androidx-constraintlayout-constraintlayout-after-migration/52882787 – Android Aug 02 '19 at 10:22
  • What type of file is the `birthday` drawable, and exactly which folder(s) is it in? – Mike M. Aug 02 '19 at 23:14

1 Answers1

2

This is some errors which will come after the migration android project to androidX project.

Here is some step to check or solve those errors

Step 1 :- Make Sure about your implementation in gradle file.

Step 2 :- Android studio automatically change all libraries implementation and it's uses according to android X. if somehow not done then change in .xml file

Example :- 

     androidx.constraintlayout.ConstraintLayout (wrong).

change to

     androidx.constraintlayout.widget.ConstraintLayout (right).

Note:- You have to add 

     android.enableJetifier=true
     android.useAndroidX=true

this two-line in gradle.properties file. If the file doesn't exist then create it. While you are migrating your Project.

Now, This is almost Done

If after that also Error comes then please build > Rebuild. or You can choose Invalidate caches / Restart from file menu.

I think it will work and helpfull to all who are migrating their project.

Bhaven Shah
  • 692
  • 1
  • 5
  • 18