안드로이드 - IllegalStateException : InvocationTargetException에 의해 발생 된 활동의 메소드를 실행할 수 없습니다.

Question

Coursera Android 코스를 수강 중이며 시작한 앱을 완성하려고합니다. 나는 설정된 간격으로 애니메이션을 얻으려고 노력하고있다. See here for more details

같은 제목의 게시물을 많이 보았지만 모두 다른 해결책이있는 것으로 보입니다. Eclipse에서 저장하고 컴파일 할 때 오류가 발생하지 않습니다.

여기에 내 로그 캣 결과입니다 :

02-09 22:56:10.811: E/AndroidRuntime(29538): FATAL EXCEPTION: main 
02-09 22:56:10.811: E/AndroidRuntime(29538): Process: stacy.example.assignment3_stacy_v1, PID: 29538 
02-09 22:56:10.811: E/AndroidRuntime(29538): java.lang.IllegalStateException: Could not execute method of the activity 
02-09 22:56:10.811: E/AndroidRuntime(29538): at android.view.View$1.onClick(View.java:3823) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at android.view.View.performClick(View.java:4438) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at android.view.View$PerformClick.run(View.java:18422) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at android.os.Handler.handleCallback(Handler.java:733) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at android.os.Handler.dispatchMessage(Handler.java:95) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at android.os.Looper.loop(Looper.java:136) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at android.app.ActivityThread.main(ActivityThread.java:5017) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at java.lang.reflect.Method.invokeNative(Native Method) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at java.lang.reflect.Method.invoke(Method.java:515) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at dalvik.system.NativeStart.main(Native Method) 
02-09 22:56:10.811: E/AndroidRuntime(29538): Caused by: java.lang.reflect.InvocationTargetException 
02-09 22:56:10.811: E/AndroidRuntime(29538): at java.lang.reflect.Method.invokeNative(Native Method) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at java.lang.reflect.Method.invoke(Method.java:515) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at android.view.View$1.onClick(View.java:3818) 
02-09 22:56:10.811: E/AndroidRuntime(29538): ... 11 more 
02-09 22:56:10.811: E/AndroidRuntime(29538): Caused by: java.lang.NumberFormatException: Invalid int: "" 
02-09 22:56:10.811: E/AndroidRuntime(29538): at java.lang.Integer.invalidInt(Integer.java:137) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at java.lang.Integer.parseInt(Integer.java:358) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at java.lang.Integer.parseInt(Integer.java:331) 
02-09 22:56:10.811: E/AndroidRuntime(29538): at stacy.example.assignment3_stacy_v1.Assignment3MainActivity.startRhythmandAnimation(Assignment3MainActivity.java:41) 
02-09 22:56:10.811: E/AndroidRuntime(29538): ... 14 more 

MainActivity.java

package stacy.example.assignment3_stacy_v1; 

import android.os.Bundle; 
import android.os.Handler; 
import android.app.Activity; 
import android.view.Menu; 
import android.view.View; 
import android.view.animation.Animation; 
import android.view.animation.AnimationUtils; 
import android.widget.EditText; 

public class Assignment3MainActivity extends Activity { 


    private EditText mMileTimeGoal; 
    private Handler mHandler; 
    private View mLeftfoot; 
    private Animation mFootAnim; 
    private long mInterval = 1000; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_assignment3_main); 
     //mMileTimeGoal = findViewById(R.id.miletimegoal); 
     mMileTimeGoal = (EditText) findViewById(R.id.miletimegoal); 
    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.assignment3_main, menu); 
     return true; 
    } 

    public void startRhythmandAnimation (View view) { 

     //String MileTime = mMileTimeGoal.getContext().toString(); 
     String MileTime = mMileTimeGoal.getText().toString(); 
     String[] time_array = MileTime.split(":"); 
     int hours = Integer.parseInt(time_array[0]); 
     int minutes = Integer.parseInt(time_array[1]); 
     int seconds = Integer.parseInt(time_array[2]); 
     int duration = 3600 * hours + 60 * minutes + seconds; 
     int steps_per_second = 3; 

     int running_rate = duration * steps_per_second; 

     /* 
     View rightfoot = findViewById(R.id.rightfoot); 
     View leftfoot = findViewById(R.id.leftfoot); 

     rightfoot.setVisibility(View.VISIBLE); 
     Animation anim = AnimationUtils.makeInChildBottomAnimation(this); 
     rightfoot.startAnimation(anim); 

     leftfoot.setVisibility(View.VISIBLE); 
     leftfoot.startAnimation(anim); 
     */ 

     mHandler = new Handler(); //.os package class when importing 
      mLeftfoot = findViewById(R.id.leftfoot); 
      //mFootAnim = AnimationUtils.loadAnimation(this, R.anim.mleftfoot); 
      mFootAnim = AnimationUtils.loadAnimation(this, R.id.leftfoot); 
      stepRecursive(); 
     } 

     private void stepRecursive() { 
      mHandler.postDelayed(new Runnable() { 
       @Override 
       public void run() { 
        mLeftfoot.startAnimation(mFootAnim); 
        stepRecursive(); 
       } 
      }, mInterval); 
    } 

    public void resetTimetoZeroes() { 
     String MileTime = mMileTimeGoal.getContext().toString(); 
     //Int MileTime = 0; 
    } 

} 

레이아웃 XML

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context=".Assignment3MainActivity" > 

    <ImageView 
     android:id="@+id/leftfoot" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignBottom="@+id/rightfoot" 
     android:layout_toLeftOf="@+id/rightfoot" 
     android:src="@drawable/leftfoot" /> 

    <EditText 
     android:id="@+id/miletimegoal" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentTop="true" 
     android:layout_centerHorizontal="true" 
     android:layout_marginTop="18dp" 
     android:ems="10" 
     android:inputType="time" 
     android:hint="Mile Time Goal?" /> 

    <ImageView 
     android:id="@+id/rightfoot" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentBottom="true" 
     android:layout_alignParentRight="true" 
     android:layout_marginBottom="74dp" 
     android:layout_marginRight="36dp" 
     android:src="@drawable/rightfoot" /> 

    <Button 
     android:id="@+id/startbutton" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_above="@+id/leftfoot" 
     android:layout_alignRight="@+id/leftfoot" 
     android:onClick="startRhythmandAnimation" 
     android:text="@string/start_button" /> 

    <Button 
     android:id="@+id/resetbutton" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignBaseline="@+id/startbutton" 
     android:layout_alignBottom="@+id/startbutton" 
     android:layout_alignLeft="@+id/rightfoot" 
     android:text="@string/reset_button" 
     android:onClick="resetTimetoZeroes" /> 

</RelativeLayout> 

편집 - 여기에 최신 로그 캣 메시지입니다. 시간 계산 코드를 무시하십시오. 애니메이션 작업을 먼저하고 싶습니다!

02-09 23:42:32.291: E/AndroidRuntime(32320): FATAL EXCEPTION: main 
02-09 23:42:32.291: E/AndroidRuntime(32320): Process: stacy.example.assignment3_stacy_v1, PID: 32320 
02-09 23:42:32.291: E/AndroidRuntime(32320): java.lang.IllegalStateException: Could not execute method of the activity 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.view.View$1.onClick(View.java:3823) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.view.View.performClick(View.java:4438) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.view.View$PerformClick.run(View.java:18422) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.os.Handler.handleCallback(Handler.java:733) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.os.Handler.dispatchMessage(Handler.java:95) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.os.Looper.loop(Looper.java:136) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.app.ActivityThread.main(ActivityThread.java:5017) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at java.lang.reflect.Method.invokeNative(Native Method) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at java.lang.reflect.Method.invoke(Method.java:515) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at dalvik.system.NativeStart.main(Native Method) 
02-09 23:42:32.291: E/AndroidRuntime(32320): Caused by: java.lang.reflect.InvocationTargetException 
02-09 23:42:32.291: E/AndroidRuntime(32320): at java.lang.reflect.Method.invokeNative(Native Method) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at java.lang.reflect.Method.invoke(Method.java:515) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.view.View$1.onClick(View.java:3818) 
02-09 23:42:32.291: E/AndroidRuntime(32320): ... 11 more 
02-09 23:42:32.291: E/AndroidRuntime(32320): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f090000 type #0x12 is not valid 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.content.res.Resources.loadXmlResourceParser(Resources.java:2314) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.content.res.Resources.getAnimation(Resources.java:963) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at android.view.animation.AnimationUtils.loadAnimation(AnimationUtils.java:71) 
02-09 23:42:32.291: E/AndroidRuntime(32320): at stacy.example.assignment3_stacy_v1.Assignment3MainActivity.startRhythmandAnimation(Assignment3MainActivity.java:79) 

나는 나의 foot.xml 파일을 게시하는 것을 잊었다!

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android"> 
    <translate android:fromYDelta="0" android:toYDelta="-15" android:duration="400"/> 
    <alpha android:fromAlpha="1.0" android:toAlpha="0" android:duration="400" /> 
</set> 

는 내 자원 예외를 고정 다음

mFootAnim = AnimationUtils.loadAnimation(this, R.anim.foot); 

Answer 1

귀하의 코드는 2 차 오류에 대한 예외를

public void startRhythmandAnimation(View view) { 

    // String MileTime = mMileTimeGoal.getContext().toString(); 
    String MileTime = mMileTimeGoal.getText().toString(); 

    DateFormat formatter = new SimpleDateFormat("HH:mm:ss"); 
    try { 
     Date dt = formatter.parse(MileTime); 
     Calendar cal = Calendar.getInstance(); 
     cal.setTime(dt); 
     int hours = cal.get(Calendar.HOUR); 
     int minutes = cal.get(Calendar.MINUTE); 
     int seconds = cal.get(Calendar.SECOND); 

     int duration = 3600 * hours + 60 * minutes + seconds; 
     int steps_per_second = 3; 

     int running_rate = duration * steps_per_second; 

     mHandler = new Handler(); // .os package class when importing 
     mLeftfoot = findViewById(R.id.leftfoot); 
     // mFootAnim = AnimationUtils.loadAnimation(this, R.anim.mleftfoot); 
     mFootAnim = AnimationUtils.loadAnimation(this, R.id.leftfoot); 
     stepRecursive(); 
    } catch (Exception e) { 
     e.printStackTrace(); 
     Toast.makeText(Assignment3MainActivity.this, 
       "Please Enter Valid Time Stamp", Toast.LENGTH_LONG).show(); 
    } 

} 

Answer 2

당신이 배열에 MileTime, 값 중 하나를 분할 할 때 다음 줄에 의해 판단, 빈 문자열 것 같다 :

Caused by: java.lang.NumberFormatException: Invalid int: "" 

분할을 수행 한 후 로그 문이나 중단 점을 넣고값을 확인하십시오.이

Answer 3

을 방지하기 위해 아래와 같이해야한다 확인하기 위해, 자원 $ NotFoundException : 자원 ID # 0x7f090000 형 # 0x12로는 깨끗한 프로젝트와 있는지 유효하지 않습니다 R.java가 다시 생성되면, 그렇지 않다면, 프로젝트 폴더를보고 모든 파일이 있는지 확인하십시오.