简单的Android应用程序打开后关闭

时间：2017-06-16 19:04:46

标签： java android crash

我试过搜索，但没有类似于我的结果。 所以我正在做我的第一个应用程序并遇到了这样的问题：应用程序在启动后立即关闭。测试是在6.0安卓版手机上完成的。我想尽快完成这个问题，所以我可以继续学习，所以感谢任何输入。 catlog没有显示任何异常，只有这个：

06-16 22:01:04.156 12236-12236/? I/art: Late-enabling -Xcheck:jni
06-16 22:01:04.633 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_dependencies_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_dependencies_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:04.870 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_0_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_0_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:04.933 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_1_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_1_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.004 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_2_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_2_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.072 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_3_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_3_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.139 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_4_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_4_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.201 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_5_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_5_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.263 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_6_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_6_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.327 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_7_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_7_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.389 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_8_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_8_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.454 12236-12236/com.ktu.sirius.percentcalculator W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg  --debuggable --instruction-set=arm64 --instruction-set-features=smp,a53 --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=generic --instruction-set-features=default --dex-file=/data/app/com.ktu.sirius.percentcalculator-2/split_lib_slice_9_apk.apk --oat-file=/data/dalvik-cache/arm64/data@app@com.ktu.sirius.percentcalculator-2@split_lib_slice_9_apk.apk@classes.dex) because non-0 exit status
06-16 22:01:05.457 12236-12236/com.ktu.sirius.percentcalculator W/System: ClassLoader referenced unknown path: /data/app/com.ktu.sirius.percentcalculator-2/lib/arm64
06-16 22:01:05.491 12236-12236/com.ktu.sirius.percentcalculator I/InstantRun: starting instant run server: is main process
06-16 22:01:06.021 12236-12236/com.ktu.sirius.percentcalculator I/Process: Sending signal. PID: 12236 SIG: 9

所以，这是我唯一的一个类，Calculator.java：

package com.ktu.sirius.percentcalculator;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Calculator extends AppCompatActivity {

Button buttonCalculate = (Button) findViewById(R.id.buttonCalculate);
TextView Answer = (TextView) findViewById(R.id.answerTextView);
EditText Percentage = (EditText) findViewById(R.id.percentEditText);
EditText Number = (EditText) findViewById(R.id.numberEditText);

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

        buttonCalculate.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                if (!isStringEmpty(Percentage.getText().toString()) && !isStringEmpty(Number.getText().toString())) {
                    double answer = Double.parseDouble(Number.getText().toString()) / 100 * Double.parseDouble(Percentage.getText().toString());
                    Answer.setText(String.valueOf(answer));
                }
            }
        });
}

boolean isStringEmpty(String toCheck){
    return toCheck.length() == 0;
}


}

activity_calculator.xml：

<?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"
    tools:context="com.ktu.sirius.percentcalculator.Calculator">

    <EditText
        android:id="@+id/percentEditText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="numberDecimal"
        android:hint="Enter percentage"
        android:textAlignment="center"
        android:paddingTop="40dp"
        android:layout_marginRight="8dp"
        app:layout_constraintRight_toRightOf="parent"
        android:layout_marginLeft="8dp"
        app:layout_constraintLeft_toLeftOf="parent"
        android:layout_marginTop="8dp"
        app:layout_constraintHorizontal_bias="0.503"
        android:layout_marginBottom="8dp"
        app:layout_constraintBottom_toTopOf="@+id/ofTextView"
        app:layout_constraintTop_toBottomOf="@+id/answerTextView"
        app:layout_constraintVertical_bias="1.0" />

    <TextView
        android:id="@+id/percentTextView"
        android:layout_width="18dp"
        android:layout_height="40dp"
        android:text="%"
        android:textSize="30sp"
        app:layout_constraintLeft_toRightOf="@+id/percentEditText"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintTop_toTopOf="@+id/percentEditText"
        android:layout_marginBottom="8dp"
        app:layout_constraintVertical_bias="0.503"
        app:layout_constraintBottom_toTopOf="@+id/ofTextView" />

    <TextView
        android:id="@+id/answerTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="0"
        android:textSize="50sp"
        android:layout_marginRight="8dp"
        app:layout_constraintRight_toRightOf="parent"
        android:layout_marginLeft="8dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="8dp" />

    <TextView
        android:id="@+id/ofTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="of"
        android:textSize="30sp"
        android:layout_marginRight="8dp"
        app:layout_constraintRight_toRightOf="parent"
        android:layout_marginLeft="8dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintBottom_toBottomOf="@+id/buttonCalculate"
        app:layout_constraintHorizontal_bias="0.501"
        android:layout_marginBottom="8dp" />

    <EditText
        android:id="@+id/numberEditText"
        android:hint="Enter number"
        android:textAlignment="center"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="numberDecimal"
        android:layout_marginRight="8dp"
        app:layout_constraintRight_toRightOf="parent"
        android:layout_marginLeft="8dp"
        app:layout_constraintLeft_toLeftOf="parent"
        android:layout_marginTop="8dp"
        app:layout_constraintTop_toBottomOf="@+id/ofTextView" />

    <Button
        android:id="@+id/buttonCalculate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginTop="8dp"
        android:text="Calculate"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/numberEditText" />

</android.support.constraint.ConstraintLayout>

和android_manifest.xml：

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

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.ktu.sirius.percentcalculator">

    <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=".Calculator">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

0 个答案:

没有答案
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