Wie kann man Probleme mit Android-App-Abstürzen beheben?

Question

Mein Projekt auf Android Studio läuft gut auf einigen Handys und Emulatoren, aber stürzt auf vielen Telefonen ab. Ich habe eine Main_Activity und klicke auf Login um zu einer zweiten Aktivität zu gelangen. Ich teile die Java-Dateien und XML-Dateien beider Aktivitäten zusammen mit Android-Manifest.

Main Activity Java-Datei

package club.pithynews.iitbhilai_pithy; 

import android.content.Intent; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 
import android.widget.Toast; 

public class MainActivity extends AppCompatActivity { 

    private EditText username; 
    private EditText password; 
    private Button login_button; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     java.text.DateFormat dateFormat = android.text.format.DateFormat.getDateFormat(getApplicationContext()); 
     super.onCreate(savedInstanceState); 

     setContentView(R.layout.activity_main); 
     LoginButton(); 
    } 

    public void LoginButton() { 
     username = (EditText) findViewById(R.id.editText); 
     password = (EditText) findViewById(R.id.editText2); 
     login_button = (Button) findViewById(R.id.button); 

     login_button.setOnClickListener(
       new View.OnClickListener() { 
        @Override 
        public void onClick(View v) { 
         if ((username.getText().toString().equals("user"))&&(password.getText().toString().equals("pass"))) { 
          Intent intent = new Intent("club.pithynews.iitbhilai_pithy.User"); 
          startActivity(intent); 
         } 
        } 
       } 
     ); 
    } 
} 

Main Activity XML-Datei

<?xml version="1.0" encoding="utf-8"?> 
<android.support.constraint.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:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:background="@drawable/back_login" 
    tools:context="club.pithynews.iitbhilai_pithy.MainActivity"> 



    <EditText 
     android:id="@+id/editText" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 

     android:background="#11000000" 
     android:ems="10" 
     android:hint="@string/user_name" 
     android:textSize="25sp" 
     app:layout_constraintBottom_toBottomOf="parent" 
     app:layout_constraintEnd_toEndOf="parent" 
     app:layout_constraintHorizontal_bias="0.78" 
     app:layout_constraintStart_toStartOf="parent" 
     app:layout_constraintTop_toTopOf="parent" 
     app:layout_constraintVertical_bias="0.53" /> 

    <EditText 
     android:id="@+id/editText2" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 

     android:layout_marginBottom="8dp" 
     android:layout_marginEnd="8dp" 
     android:layout_marginStart="8dp" 
     android:layout_marginTop="8dp" 
     android:background="#11000000" 
     android:ems="10" 
     android:hint="@string/password" 
     android:inputType="textPassword" 
     android:textSize="25sp" 
     app:layout_constraintBottom_toBottomOf="parent" 
     app:layout_constraintEnd_toEndOf="parent" 
     app:layout_constraintHorizontal_bias="0.78" 
     app:layout_constraintStart_toStartOf="parent" 
     app:layout_constraintTop_toTopOf="parent" 
     app:layout_constraintVertical_bias="0.64" /> 

    <ImageView 
     android:id="@+id/imageView2" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginBottom="8dp" 
     android:layout_marginEnd="8dp" 
     android:layout_marginStart="8dp" 

     android:layout_marginTop="8dp" 
     android:adjustViewBounds="true" 
     android:maxHeight="30dp" 
     android:maxWidth="30dp" 
     android:scaleType="fitCenter" 
     app:layout_constraintBottom_toBottomOf="parent" 
     app:layout_constraintEnd_toEndOf="parent" 
     app:layout_constraintHorizontal_bias="0.05" 
     app:layout_constraintStart_toStartOf="parent" 
     app:layout_constraintTop_toTopOf="parent" 
     app:layout_constraintVertical_bias="0.53" 
     app:srcCompat="@drawable/user1" 
     android:contentDescription="@string/todo" /> 


    <ImageView 
     android:id="@+id/imageView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginBottom="8dp" 
     android:layout_marginEnd="8dp" 
     android:layout_marginStart="8dp" 

     android:layout_marginTop="8dp" 
     android:adjustViewBounds="true" 
     android:maxHeight="30dp" 
     android:maxWidth="30dp" 
     android:scaleType="fitCenter" 
     app:layout_constraintBottom_toBottomOf="parent" 
     app:layout_constraintEnd_toEndOf="parent" 
     app:layout_constraintHorizontal_bias="0.06" 
     app:layout_constraintStart_toStartOf="parent" 
     app:layout_constraintTop_toTopOf="parent" 
     app:layout_constraintVertical_bias="0.64" 
     app:srcCompat="@drawable/lock1" 
     android:contentDescription="@string/todo" /> 

    <Button 
     android:id="@+id/button" 
     android:layout_width="200dp" 
     android:layout_height="40dp" 

     android:layout_marginBottom="8dp" 
     android:layout_marginEnd="8dp" 
     android:layout_marginStart="8dp" 

     android:layout_marginTop="8dp" 
     android:background="@drawable/back_login" 
     android:text="@string/login" 
     android:textSize="28sp" 
     app:layout_constraintBottom_toBottomOf="parent" 
     app:layout_constraintEnd_toEndOf="parent" 
     app:layout_constraintStart_toStartOf="parent" 
     app:layout_constraintTop_toTopOf="parent" 
     app:layout_constraintVertical_bias="0.79" /> 

    <ImageView 
     android:id="@+id/imageView3" 
     android:layout_width="233dp" 
     android:layout_height="227dp" 
     android:layout_marginBottom="8dp" 
     android:layout_marginEnd="1dp" 
     android:layout_marginStart="20dp" 


     app:layout_constraintBottom_toBottomOf="parent" 
     app:layout_constraintEnd_toEndOf="parent" 
     app:layout_constraintHorizontal_bias="0.43" 
     app:layout_constraintStart_toStartOf="parent" 
     app:layout_constraintTop_toTopOf="parent" 
     app:layout_constraintVertical_bias="0.057" 
     app:srcCompat="@drawable/logoiit" 
     android:contentDescription="@string/todo" /> 



</android.support.constraint.ConstraintLayout > 

Zweite Aktivität Java-Datei

package club.pithynews.iitbhilai_pithy; 

import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 

public class User extends AppCompatActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_user); 
    } 
} 

Zweite Aktivität XML-Datei

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout 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:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:background="@drawable/white" 
    tools:context="club.pithynews.iitbhilai_pithy.User"> 

    <ImageButton 
     android:id="@+id/imageButton_emergency3" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:adjustViewBounds="true" 
     android:maxWidth="80dp" 
     android:maxHeight="100dp" 
     android:scaleType="fitCenter" 
     android:layout_marginLeft="270dp" 
     android:layout_marginTop="350dp" 
     android:src="@drawable/emergency3" 
     android:background="@null" 
     android:layout_marginStart="270dp" 
     android:contentDescription="@string/todo13" /> 

    <ImageButton 
     android:id="@+id/imageButton_feedback1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:adjustViewBounds="true" 
     android:maxWidth="125dp" 
     android:maxHeight="100dp" 
     android:scaleType="fitCenter" 
     android:layout_marginLeft="265dp" 
     android:layout_marginTop="445dp" 
     android:src="@drawable/feedback1" 
     android:background="@null" 
     android:layout_marginStart="265dp" 
     android:contentDescription="@string/todo12" /> 

    <ImageButton 
     android:id="@+id/imageButton_aboutus1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:adjustViewBounds="true" 
     android:maxWidth="125dp" 
     android:maxHeight="500dp" 
     android:scaleType="fitCenter" 
     android:layout_marginLeft="125dp" 
     android:layout_marginTop="455dp" 
     android:src="@drawable/aboutus1" 
     android:background="@null" 
     android:layout_marginStart="125dp" 
     android:contentDescription="@string/todo11" /> 

    <ImageButton 
     android:id="@+id/imageButton_campusmap1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:adjustViewBounds="true" 
     android:maxWidth="125dp" 
     android:maxHeight="80dp" 
     android:scaleType="fitCenter" 
     android:layout_marginLeft="20dp" 
     android:layout_marginTop="455dp" 
     android:src="@drawable/campusmap1" 
     android:background="@null" 
     android:layout_marginStart="20dp" 
     android:contentDescription="@string/todo10" /> 
    <ImageButton 
     android:id="@+id/imageButton_adminstrators" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:adjustViewBounds="true" 
     android:maxWidth="100dp" 
     android:maxHeight="500dp" 
     android:scaleType="fitCenter" 
     android:layout_marginLeft="140dp" 
     android:layout_marginTop="350dp" 
     android:src="@drawable/adminstrators" 
     android:background="@null" 
     android:layout_marginStart="140dp" 
     android:contentDescription="@string/todo9" /> 

    <ImageButton 
     android:id="@+id/imageButton_fnr" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="25dp" 
     android:layout_marginTop="350dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:contentDescription="@string/fee_and_registration" 
     android:maxHeight="200dp" 
     android:maxWidth="75dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/fnr" 

     android:layout_marginStart="25dp" /> 

    <ImageButton 
     android:id="@+id/imageButton_clubs" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="265dp" 
     android:layout_marginTop="220dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/clubs" 
     android:layout_marginStart="265dp" 
     android:contentDescription="@string/todo8" /> 

    <ImageButton 
     android:id="@+id/imageButton_studdata" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="135dp" 
     android:layout_marginTop="220dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/studdata" 
     android:layout_marginStart="135dp" 
     android:contentDescription="@string/todo7" /> 

    <ImageButton 
     android:id="@+id/imageButton_bus" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="15dp" 
     android:layout_marginTop="220dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/bus" 
     android:layout_marginStart="15dp" 
     android:contentDescription="@string/todo6" /> 

    <ImageButton 
     android:id="@+id/imageButton_mess" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="265dp" 
     android:layout_marginTop="100dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/mess" 
     android:layout_marginStart="265dp" 
     android:contentDescription="@string/todo5" /> 

    <ImageButton 
     android:id="@+id/imageButton_faculty" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="135dp" 
     android:layout_marginTop="100dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/faculty" 
     android:layout_marginStart="135dp" 
     android:contentDescription="@string/todo4" /> 

    <ImageButton 
     android:id="@+id/imageButton_academics" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="15dp" 
     android:layout_marginTop="100dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/academics" 
     android:layout_marginStart="15dp" 
     android:contentDescription="@string/todo3" /> 

    <ImageButton 
     android:id="@+id/imageButton_newsletter" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="265dp" 
     android:layout_marginTop="0dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/news" 
     android:layout_marginStart="265dp" 
     android:contentDescription="@string/todo" /> 

    <ImageButton 
     android:id="@+id/imageButton_events" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="135dp" 
     android:layout_marginTop="10dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/events" 
     android:layout_marginStart="135dp" 
     android:contentDescription="@string/todo1" /> 

    <ImageButton 
     android:id="@+id/imageButton_today" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="15dp" 
     android:layout_marginTop="0dp" 
     android:adjustViewBounds="true" 
     android:background="@null" 
     android:maxHeight="500dp" 
     android:maxWidth="100dp" 
     android:scaleType="fitCenter" 
     android:src="@drawable/today" 
     android:layout_marginStart="15dp" 
     android:contentDescription="@string/todo2" /> 

    <TextView 
     android:id="@+id/textView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignBaseline="@+id/textView2" 
     android:layout_alignBottom="@+id/textView2" 
     android:layout_alignEnd="@+id/imageButton_emergency3" 
     android:layout_alignRight="@+id/imageButton_emergency3" 
     android:text="@string/textview5" 
     android:textColor="@color/colorPrimaryDark" 
     android:visibility="visible" 
     tools:text=" Emergency " /> 

    <TextView 
     android:id="@+id/textView2" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignBaseline="@+id/textView3" 
     android:layout_alignBottom="@+id/textView3" 
     android:layout_alignEnd="@+id/imageButton_adminstrators" 
     android:layout_alignRight="@+id/imageButton_adminstrators" 
     android:text="@string/administrators" 
     android:textColor="@color/colorPrimaryDark" /> 

    <TextView 
     android:id="@+id/textView3" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignLeft="@+id/imageButton_bus" 
     android:layout_alignStart="@+id/imageButton_bus" 
     android:layout_below="@+id/imageButton_fnr" 
     android:text="@string/textview4" 
     android:textColor="@color/colorPrimaryDark" 
     tools:text=" Fees and\n Registration" /> 

    <TextView 
     android:id="@+id/textView4" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignLeft="@+id/textView3" 
     android:layout_alignStart="@+id/textView3" 
     android:layout_below="@+id/imageButton_campusmap1" 
     android:text="@string/textview3" 
     tools:text=" Campus Map" 
     android:textColor="@color/colorPrimaryDark"/> 

    <TextView 
     android:id="@+id/textView5" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignLeft="@+id/imageButton_adminstrators" 
     android:layout_alignStart="@+id/imageButton_adminstrators" 
     android:layout_below="@+id/imageButton_campusmap1" 
     android:text="@string/textview2" 
     tools:text="  About Us" 
     android:textColor="@color/colorPrimaryDark"/> 

    <TextView 
     android:id="@+id/textView6" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignLeft="@+id/imageButton_feedback1" 
     android:layout_alignStart="@+id/imageButton_feedback1" 
     android:layout_alignTop="@+id/textView5" 
     android:text="@string/textview1" 
     tools:text="  Feedback" 
     android:textColor="@color/colorPrimaryDark"/> 
</RelativeLayout> 

Android Manifest-Datei

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="club.pithynews.iitbhilai_pithy"> 

    <application 
     android:allowBackup="true" 
     android:icon="@mipmap/ic_launcher" 
     android:label="@string/app_name" 
     android:roundIcon="@mipmap/ic_launcher_round" 
     android:supportsRtl="true" 
     android:theme="@style/AppTheme"> 
     <activity android:name=".MainActivity"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity android:name=".User"> 
      <intent-filter> 
       <action android:name="club.pithynews.iitbhilai_pithy.User" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
    </application> 

</manifest> 

</resources> 

Debug-Bericht, wenn App abstürzt

W/System: ClassLoader referenced unknown path: /data/app/club.pithynews.iitbhilai_pithy-1/lib/arm 
I/InstantRun: starting instant run server: is main process 
W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable 
D/TextView: setTypeface with style : 0 
D/TextView: setTypeface with style : 0 
W/ResourceType: Failure getting entry for 0x7f06005a (t=5 e=90) (error -75) 
D/AndroidRuntime: Shutting down VM 
E/AndroidRuntime: FATAL EXCEPTION: main 
        Process: club.pithynews.iitbhilai_pithy, PID: 16468 
        java.lang.RuntimeException: Unable to start activity ComponentInfo{club.pithynews.iitbhilai_pithy/club.pithynews.iitbhilai_pithy.MainActivity}: android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class android.support.constraint.ConstraintLayout 
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) 
        Caused by: android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class android.support.constraint.ConstraintLayout 
         at android.view.LayoutInflater.inflate(LayoutInflater.java:551) 
               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)  
        Caused by: android.view.InflateException: Binary XML file line #0: Error inflating class android.support.constraint.ConstraintLayout 
         at android.app.Activity.performCreate(Activity.java:6904)  
         at a 
         at android.app.ActivityThread.main(ActivityThread.java:7331)  
         at java.lang.reflect.Method.invoke(Native Method)  
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)  
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)  
        Caused by: android.content.res.Resources$NotFoundException: Resource "club.pithynews.iitbhilai_pithy:drawable/back_login" (7f06005a) is not a Drawable (color or path): TypedValue{t=0x1/d=0x7f06005a a=-1 r=0x7f06005a} 
         at android.os.Handler.dispatchMessage(Handler.java:102)  
         at android.os.Looper.loop(Looper.java:148)  
         at android.app.ActivityThread.main(ActivityThread.java:7331)  
         at java.lang.reflect.Method.invoke(Native Method)  
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)  
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)  

Answer 1

Fehler selbsterklärend ist. Sie versuchen, ein Bild zu laden, das zu groß ist.

Canvas: trying to draw too large(111300000bytes) bitmap. 

Einer Ihrer ziehbar Quelle, die Sie Ihre ImageButton oder ImageView setzen auf ist zu groß. Sie können:

• Maßstab Bild manuell
• in Code ausführen Skalierung und danach

Answer 2

java.lang.RuntimeException: Canvas: trying to draw too large(111300000bytes) bitmap. 

das Bild eingestellt Wie Sie sehen können, Sie versuchen, ein Bild anzuzeigen, das zu groß ist. Überprüfen Sie die Größe der enthaltenen Bitmap-Ressourcen.

Answer 3

Sie zeigen ein Bild der Größe 111,3 mb an, das zu groß ist, um Sie zu verarbeiten, müssen Sie komprimieren und auf eine kleinere Version vor der Anzeige skalieren. Hier können Sie Ihr Bild skalieren.

Bitmap scaled = Bitmap.createScaledBitmap(originalBitmap, 120, 120, false); 

mehr here und komprimieren

ByteArrayOutputStream out = new ByteArrayOutputStream(); 
scaledBitmap.compress(Bitmap.CompressFormat.JPEG, 85, out); 

mit mehr sehen here