java - 起動するとすぐにAndroidアプリがクラッシュする

Question

これがばかげた質問であるなら、私は謝罪します：

これはAndroidアプリを作成する最初の試みであり、何らかの理由でこれが開始されません。クリックするとすぐに閉じます何がうまくいかないのか考えてみませんか？道に迷いました。

package weight.Lifting.stuff;
import android.app.Activity;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
import android.view.View;
public class MainActivity extends Activity 
{   
TextView weight100, weight95, weight90, weight85, weight80, weight75, weight70, weight65, weight60;
    EditText enterWeight, enterReps;

    double Weight=1,Reps=1,a=1,b=1,c=1,d=1,e=1,f=1,g=1,h=1,i=1,A=.95,B=.90,C=.85,D=.80,E=.75,F=.70,G=.65,H=.60,I=.333;

    @Override
    public void onCreate(Bundle savedInstanceState){ 

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_activity__lifting);

        weight100 = (TextView) findViewById (R.id.textView3);
        weight95 = (TextView) findViewById (R.id.textView8);
        weight90 = (TextView) findViewById (R.id.textView9);
        weight85 = (TextView) findViewById (R.id.textView10);
        weight80 = (TextView) findViewById (R.id.textView11);
        weight75 = (TextView) findViewById (R.id.textView12);
        weight70 = (TextView) findViewById (R.id.textView15);
        weight65 = (TextView) findViewById (R.id.textView16);
        weight60 = (TextView) findViewById (R.id.textView17);

        enterWeight = (EditText) findViewById (R.id.editText1);
        enterReps = (EditText) findViewById (R.id.editText2);
    }



            public void onButton1Click (View v)
            {

                Weight = Double.parseDouble(enterWeight.getText().toString());
                Reps = Double.parseDouble(enterReps.getText().toString());

                a = ((Weight*I*Reps)+Weight);
                b = ((Weight*I*Reps)+Weight)*A;
                c = ((Weight*I*Reps)+Weight)*B;
                d = ((Weight*I*Reps)+Weight)*C;
                e = ((Weight*I*Reps)+Weight)*D;
                f = ((Weight*I*Reps)+Weight)*E;
                g = ((Weight*I*Reps)+Weight)*F;
                h = ((Weight*I*Reps)+Weight)*G;
                i = ((Weight*I*Reps)+Weight)*H;

                weight100.setText(Double.toString(a));
                weight95.setText(Double.toString(b));
                weight90.setText(Double.toString(c));
                weight85.setText(Double.toString(d));
                weight80.setText(Double.toString(e));
                weight75.setText(Double.toString(f));
                weight70.setText(Double.toString(g));
                weight65.setText(Double.toString(h));
                weight60.setText(Double.toString(i));
            }
    }

これが私のxmlです

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    tools:context=".MainActivity_Lifting" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Enter Weight:" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignRight="@+id/textView2"
        android:layout_below="@+id/textView1"
        android:ems="10" >

        <requestFocus />
    </EditText>

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/editText1"
        android:text="Enter Reps:" />

    <EditText
        android:id="@+id/editText2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignRight="@+id/textView2"
        android:layout_below="@+id/textView2"
        android:ems="10" />

    <Button
        android:id="@+id/button1"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/editText2"
        android:focusableInTouchMode="true"
        android:gravity="center_vertical|center_horizontal|left"
        android:onClick="onButton1Click"
        android:text="Calculate"
        android:textSize="10sp" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/editText1"
        android:layout_marginLeft="58dp"
        android:layout_toRightOf="@+id/editText1"
        android:text="95% (3 reps)" />

    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/editText2"
        android:layout_alignLeft="@+id/textView4"
        android:text="90% (5 reps)" />

    <TextView
        android:id="@+id/textView6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView5"
        android:layout_alignTop="@+id/editText2"
        android:text="85% (6 reps)" />

    <TextView
        android:id="@+id/textView100"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textView4"
        android:layout_alignRight="@+id/textView4"
        android:text="100% (1 rep)" />

    <TextView
        android:id="@+id/textView14"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView13"
        android:layout_below="@+id/textView13"
        android:text="70% (12 reps)" />

    <TextView
        android:id="@+id/textView18"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView14"
        android:layout_below="@+id/textView14"
        android:text="65% (15 reps)" />

    <TextView
        android:id="@+id/textView19"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView100"
        android:layout_below="@+id/textView18"
        android:text="60% (20 reps)" />

    <TextView
        android:id="@+id/textView13"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView7"
        android:layout_below="@+id/editText2"
        android:text="75% (10 reps)" />

    <TextView
        android:id="@+id/textView7"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView100"
        android:layout_below="@+id/textView6"
        android:text="80% (8 reps)" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView100"
        android:layout_alignBottom="@+id/textView100"
        android:layout_toRightOf="@+id/textView7"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView8"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView3"
        android:layout_toRightOf="@+id/textView4"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView9"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/textView3"
        android:layout_below="@+id/textView4"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView10"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView6"
        android:layout_alignBottom="@+id/textView6"
        android:layout_alignLeft="@+id/textView8"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView11"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView6"
        android:layout_toRightOf="@+id/textView7"
        android:clickable="true"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView12"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView11"
        android:layout_toRightOf="@+id/textView13"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView15"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView12"
        android:layout_below="@+id/textView13"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView16"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView18"
        android:layout_alignBottom="@+id/textView18"
        android:layout_alignLeft="@+id/textView15"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView17"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView19"
        android:layout_alignBottom="@+id/textView19"
        android:layout_alignLeft="@+id/textView16"
        android:text="TextView" />

</RelativeLayout>

追加されたマニフェストxmlとログcatを編集します

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="weight.Lifting.stuff"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" android:debuggable="true">
        <activity
            android:name="weight.Lifting.stuff.MainActivity_Lifting"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

LogCat出力：

02-01 01:49:15.962: W/Trace(785): Unexpected value from nativeGetEnabledTags: 0
02-01 01:49:15.962: W/Trace(785): Unexpected value from nativeGetEnabledTags: 0
02-01 01:49:15.983: W/dalvikvm(785): threadid=1: thread exiting with uncaught exception (group=0x40a70930)
02-01 01:49:16.003: E/AndroidRuntime(785): FATAL EXCEPTION: main
02-01 01:49:16.003: E/AndroidRuntime(785): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{weight.Lifting.stuff/weight.Lifting.stuff.MainActivity_Lifting}: java.lang.ClassNotFoundException: Didn't find class "weight.Lifting.stuff.MainActivity_Lifting" on path: /data/app/weight.Lifting.stuff-1.apk
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.app.ActivityThread.access$600(ActivityThread.java:141)
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.os.Handler.dispatchMessage(Handler.java:99)
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.os.Looper.loop(Looper.java:137)
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.app.ActivityThread.main(ActivityThread.java:5039)
02-01 01:49:16.003: E/AndroidRuntime(785):  at java.lang.reflect.Method.invokeNative(Native Method)
02-01 01:49:16.003: E/AndroidRuntime(785):  at java.lang.reflect.Method.invoke(Method.java:511)
02-01 01:49:16.003: E/AndroidRuntime(785):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
02-01 01:49:16.003: E/AndroidRuntime(785):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
02-01 01:49:16.003: E/AndroidRuntime(785):  at dalvik.system.NativeStart.main(Native Method)
02-01 01:49:16.003: E/AndroidRuntime(785): Caused by: java.lang.ClassNotFoundException: Didn't find class "weight.Lifting.stuff.MainActivity_Lifting" on path: /data/app/weight.Lifting.stuff-1.apk
02-01 01:49:16.003: E/AndroidRuntime(785):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
02-01 01:49:16.003: E/AndroidRuntime(785):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
02-01 01:49:16.003: E/AndroidRuntime(785):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
02-01 01:49:16.003: E/AndroidRuntime(785):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)

Answer 1

プロジェクトを再作成しました。コンパイルして問題なく実行されます。AndroidManifest.xmlで問題を確認してください。LogCat出力と一緒に投稿することを検討してください。

Answer 2

EditTextparseDoubleフィールドが空/文字列で満たされているため、メソッドを使用しようとすると、おそらく例外がスローされます。しかし、次回はlogcatを見せてください:D