멀티 활동 응용 프로그램을 만들고 처음 만든 두 가지 활동이 강제 종료없이 제대로 작동했지만, 세 번째 활동을 추가하자마자 디스플레이에 터치를 등록하자마자 , 그 목록 항목을 클릭하면 강제로 닫습니다.다른 활동으로 올바르게 작동 할 의도가 없음
나는 다른 활동들과 똑같은 일을했으나 잘못된 것이 무엇인지 파악하지 못했습니다. 모든 활동 또한 AndroidManifest 파일에 포함되었습니다. 리스트 뷰와
주요 활동
public class MyCustomAdapter extends ArrayAdapter<String> {
public MyCustomAdapter(Context context, int textViewResourceId, String[] objects) {
super(context, textViewResourceId, objects);
// TODO Auto-generated constructor stub
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
//return super.getView(position, convertView, parent);
LayoutInflater inflater = getLayoutInflater();
View row = inflater.inflate(R.layout.row, parent, false);
TextView label = (TextView)row.findViewById(R.id.tool);
label.setText(Tool[position]);
ImageView icon = (ImageView)row.findViewById(R.id.icon);
if (Tool[position]=="Random # Generator") {
icon.setImageResource(R.drawable.generator);
}
else if (Tool[position]=="Converter"){
icon.setImageResource(R.drawable.converter);
}
else if (Tool[position]=="Ruler"){
icon.setImageResource(R.drawable.ruler);
}
else if (Tool[position]=="Stopwatch"){
icon.setImageResource(R.drawable.stopwatch);
}
else if (Tool[position]=="Countdown"){
icon.setImageResource(R.drawable.countdown);
}
else if (Tool[position]=="Multitouch"){
icon.setImageResource(R.drawable.touch);
}
return row;
}
}
String[] Tool = {"Stopwatch", "Countdown", "Multitouch", "Ruler", "Converter", "Random # Generator"};
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
/*setListAdapter(new ArrayAdapter<String>(this, R.layout.row, R.id.weekofday, DayOfWeek));*/
setListAdapter(new MyCustomAdapter(this, R.layout.row, Tool));
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
// super.onListItemClick(l, v, position, id);
switch(position) {
case 0:
Intent stopwatch = new Intent(UsefulToolsActivity.this, Stopwatch.class);
startActivity(stopwatch);
return;
case 1:
Intent countdown = new Intent(UsefulToolsActivity.this, CountdownActivity.class);
startActivity(countdown);
return;
case 2:
Intent multitouch = new Intent(UsefulToolsActivity.this, Multitouch.class);
startActivity(multitouch);
return;
default:
}
}
forceclose 일으키는 활동 로그 캣에서
public class Multitouch extends View {
private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
final int MAX_NUMBER_OF_POINT = 10;
float[] x = new float[MAX_NUMBER_OF_POINT];
float[] y = new float[MAX_NUMBER_OF_POINT];
boolean[] touching = new boolean[MAX_NUMBER_OF_POINT];
public Multitouch(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
public Multitouch(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public Multitouch(Context context) {
super(context);
init();
}
void init() {
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(1);
paint.setColor(Color.BLUE);
}
@Override
protected void onDraw(Canvas canvas) {
for(int i = 0; i < MAX_NUMBER_OF_POINT; i++) {
if(touching[i]){
canvas.drawCircle(x[i], y[i], 50f, paint);
}
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO Auto-generated method stub
setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec),
MeasureSpec.getSize(heightMeasureSpec));
}
@Override
public boolean onTouchEvent(MotionEvent event) {
int action = (event.getAction() & MotionEvent.ACTION_MASK);
int pointCount = event.getPointerCount();
for (int i = 0; i < pointCount; i++) {
int id = event.getPointerId(i);
//Ignore pointer higher than our max.
if(id < MAX_NUMBER_OF_POINT) {
x[id] = (int)event.getX(i);
y[id] = (int)event.getY(i);
if((action == MotionEvent.ACTION_DOWN)
||(action == MotionEvent.ACTION_POINTER_DOWN)
||(action == MotionEvent.ACTION_MOVE)) {
touching[id] = true;
}
else {
touching[id] = false;
}
}
}
invalidate();
return true;
}
정보 :
01-02 16 : 08 : 05.292를 : W/dalvikvm (20683) : threadid = 1 : catch되지 않은 예외 (그룹 = 0x40a321f8)로 종료하는 스레드 01-02 16 : 08 : 05.302 : E/Androi dRuntime (20683) : 치명적인 예외 : 08 : 01-02 16 주 05.302 : E/AndroidRuntime (20683) : java.lang.RuntimeException가 : 활동 ComponentInfo {com.reddicliffe.usefultools/com.reddicliffe.usefultools를 인스턴스화 할 수 없습니다. 멀티 터치} : java.lang.InstantiationException : 클래스 com.reddicliffe.usefultools.Multitouch를 인스턴스화 할 수 없습니다. 빈 생성자 없음 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : android.app.ActivityThread.performLaunchActivity (ActivityThread.java:1880) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683)) android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:1981)에서 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) android.app.ActivityThread.access $ 600 (ActivityThread.java:123 AT) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : android.app.ActivityThread $ H.handleMessage (ActivityThread.java:1147) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : android.os.Handler.dispatchMessage (Handler.java:99)에서 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) android.os.Looper.loop (Looper.java:137)에서 01 -02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : android.app.ActivityThread.main (ActivityThread) 된 .java : 4424) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : 08 : 05.302 : java.lang.reflect.Method.invokeNative (기본 방법) 01-02 16시 E/AndroidRuntime (20683) : java.lang.reflect.Method.invoke (Method.java:511) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : com.android.internal.os.ZygoteInit $ MethodAndArgsCaller. 실행 (ZygoteInit.java:784) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : com.android.internal.os.ZygoteInit.main (ZygoteInit.java:551) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : dalvik.system.NativeStart.main (기본 메소드) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : 원인 : java.lang.InstantiationException : can class com.reddicliffe.usefultools.Multitouch 클래스를 인스턴스화하지 않습니다. 빈 생성자 없습니다 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : java.lang.Class.newInstanceImpl (기본 방법)에서 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) :에서 java.lang.Class.newInstance (Class.java:1319) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : android.app.Instrumentation.newActivity (Instrumentation.java:1023)에서 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : android.app.ActivityThread.performLaunchActivity (ActivityThread.java:1871) 01-02 16 : 08 : 05.302 : E/AndroidRuntime (20683) : ...
더 (11)는 한마디로 멀티 터치 코드
public class Multitouch extends Activity {
public class MultitouchView extends View {
private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
전화? 너무 확실하지 않다 –
글쎄, 나는 힘줄을 멈추게했지만 터치 코드는 작동하지 않는 것 같다. 나는 내가 지금까지 가지고있는 것을 포스트에 추가 할 것이다. –