Android沒有得到getApplicationContext服務

Question

當我使用觸摸監聽器。在觸摸監聽器中，我調用了一個方法。方法參數需要活動和查看。當我在服務中使用getApplicationContext()它顯示 Wrong 1st argument type. Found: 'android.content.Context', required: 'android.app.Activity'

我的代碼下面給出

MyService.java

chatHead.setOnTouchListener(new View.OnTouchListener() { 
    private int initialX; 
    private int initialY; 
    private float initialTouchX; 
    private float initialTouchY; 
    @Override 
    public boolean onTouch(View v, MotionEvent event) { 
     switch (event.getAction()) { 
      case MotionEvent.ACTION_DOWN: 
       initialX = params.x; 
       initialY = params.y; 
       initialTouchX = event.getRawX(); 
       initialTouchY = event.getRawY(); 
       startX = event.getX(); 
       startY = event.getY(); 
       return false; 
      case MotionEvent.ACTION_UP: 
       float endX = event.getX(); 
       float endY = event.getY(); 
       if (isAClick(startX, endX, startY, endY)) { 
        Log.d("LockView", "clicked2"); 
        CircularAnim.fullActivity(getApplicationContext(), v) 
          .colorOrImageRes(R.color.color1) 
          .go(new CircularAnim.OnAnimationEndListener() { 
           @Override 
           public void onAnimationEnd() { 
            startActivity(new Intent(getApplicationContext(), BrowserActivity.class)); 
           } 
          }); 
       } 
       return true; 
      case MotionEvent.ACTION_MOVE: 
       params.x = initialX 
         + (int) (event.getRawX() - initialTouchX); 
       params.y = initialY 
         + (int) (event.getRawY() - initialTouchY); 
       windowManager.updateViewLayout(chatHead, params); 
       return false; 
     } 
     return true; 
    } 
}); 
windowManager.addView(chatHead, params); 

private boolean isAClick(float startX, float endX, float startY, float endY) { 
    float differenceX = Math.abs(startX - endX); 
    float differenceY = Math.abs(startY - endY); 
    if (differenceX > CLICK_ACTION_THRESHHOLD/* =5 */ || differenceY > CLICK_ACTION_THRESHHOLD) { 
     return false; 
    } 
    return true; 
} 

CircularAnim.java

public static FullActivityBuilder fullActivity(Activity activity, View triggerView) { 
return new FullActivityBuilder(activity, triggerView); 
} 
public static void init(long perfectMills, long fullActivityPerfectMills, int colorOrImageRes) { 
    sPerfectMills = perfectMills; 
    sFullActivityPerfectMills = fullActivityPerfectMills; 
    sColorOrImageRes = colorOrImageRes; 
} 

的getApplicationContext()越來越在CircularAnim.fullActivity(MainActivity.this, view)但它不是在CircularAnim.fullActivity

如何解決getApplicationContext問題CircularAnim.fullActivity(getApplicationContext(), v)

請幫助我。 CircularAnim

public class CircularAnim { 
public static final long PERFECT_MILLS = 618; 
public static final int MINI_RADIUS = 0; 
private static Long sPerfectMills; 
private static Long sFullActivityPerfectMills; 
private static Integer sColorOrImageRes; 
private static long getPerfectMills() { 
    if (sPerfectMills != null) 
     return sPerfectMills; 
    else 
     return PERFECT_MILLS; 
} 
private static long getFullActivityMills() { 
    if (sFullActivityPerfectMills != null) 
     return sFullActivityPerfectMills; 
    else 
     return PERFECT_MILLS; 
} 
private static int getColorOrImageRes() { 
    if (sColorOrImageRes != null) 
     return sColorOrImageRes; 
    else 
     return android.R.color.white; 
} 
public interface OnAnimationEndListener { 
    void onAnimationEnd(); 
} 
@SuppressLint("NewApi") 
public static class VisibleBuilder { 
    private View mAnimView, mTriggerView; 
    private Float mStartRadius, mEndRadius; 
    private long mDurationMills = getPerfectMills(); 
    private boolean isShow; 
    private OnAnimationEndListener mOnAnimationEndListener; 
    public VisibleBuilder(View animView, boolean isShow) { 
     mAnimView = animView; 
     this.isShow = isShow; 
     if (isShow) { 
      mStartRadius = MINI_RADIUS + 0F; 
     } else { 
      mEndRadius = MINI_RADIUS + 0F; 
     } 
    } 
    public VisibleBuilder triggerView(View triggerView) { 
     mTriggerView = triggerView; 
     return this; 
    } 
    public VisibleBuilder startRadius(float startRadius) { 
     mStartRadius = startRadius; 
     return this; 
    } 
    public VisibleBuilder endRadius(float endRadius) { 
     mEndRadius = endRadius; 
     return this; 
    } 
    public VisibleBuilder duration(long durationMills) { 
     mDurationMills = durationMills; 
     return this; 
    } 
    @Deprecated //You can use method - go(OnAnimationEndListener onAnimationEndListener). 
    public VisibleBuilder onAnimationEndListener(OnAnimationEndListener onAnimationEndListener) { 
     mOnAnimationEndListener = onAnimationEndListener; 
     return this; 
    } 
    public void go() { 
     go(null); 
    } 
    public void go(OnAnimationEndListener onAnimationEndListener) { 
     mOnAnimationEndListener = onAnimationEndListener; 
     if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) { 
      doOnEnd(); 
      return; 
     } 
     int rippleCX, rippleCY, maxRadius; 
     if (mTriggerView != null) { 
      int[] tvLocation = new int[2]; 
      mTriggerView.getLocationInWindow(tvLocation); 
      final int tvCX = tvLocation[0] + mTriggerView.getWidth()/2; 
      final int tvCY = tvLocation[1] + mTriggerView.getHeight()/2; 
      int[] avLocation = new int[2]; 
      mAnimView.getLocationInWindow(avLocation); 
      final int avLX = avLocation[0]; 
      final int avTY = avLocation[1]; 
      int triggerX = Math.max(avLX, tvCX); 
      triggerX = Math.min(triggerX, avLX + mAnimView.getWidth()); 
      int triggerY = Math.max(avTY, tvCY); 
      triggerY = Math.min(triggerY, avTY + mAnimView.getHeight()); 
      int avW = mAnimView.getWidth(); 
      int avH = mAnimView.getHeight(); 
      rippleCX = triggerX - avLX; 
      rippleCY = triggerY - avTY; 
      int maxW = Math.max(rippleCX, avW - rippleCX); 
      int maxH = Math.max(rippleCY, avH - rippleCY); 
      maxRadius = (int) Math.sqrt(maxW * maxW + maxH * maxH) + 1; 
     } else { 
      rippleCX = (mAnimView.getLeft() + mAnimView.getRight())/2; 
      rippleCY = (mAnimView.getTop() + mAnimView.getBottom())/2; 
      int w = mAnimView.getWidth(); 
      int h = mAnimView.getHeight(); 
      maxRadius = (int) Math.sqrt(w * w + h * h) + 1; 
     } 
     if (isShow && mEndRadius == null) 
      mEndRadius = maxRadius + 0F; 
     else if (!isShow && mStartRadius == null) 
      mStartRadius = maxRadius + 0F; 
     try { 
      Animator anim = ViewAnimationUtils.createCircularReveal(
        mAnimView, rippleCX, rippleCY, mStartRadius, mEndRadius); 
      mAnimView.setVisibility(View.VISIBLE); 
      anim.setDuration(mDurationMills); 
      anim.addListener(new AnimatorListenerAdapter() { 
       @Override 
       public void onAnimationEnd(Animator animation) { 
        super.onAnimationEnd(animation); 
        doOnEnd(); 
       } 
      }); 
      anim.start(); 
     } catch (Exception e) { 
      e.printStackTrace(); 
      doOnEnd(); 
     } 
    } 
    private void doOnEnd() { 
     if (isShow) 
      mAnimView.setVisibility(View.VISIBLE); 
     else 
      mAnimView.setVisibility(View.INVISIBLE); 
     if (mOnAnimationEndListener != null) 
      mOnAnimationEndListener.onAnimationEnd(); 
    } 
} 
@SuppressLint("NewApi") 
public static class FullActivityBuilder { 
    private Activity mActivity; 
    private View mTriggerView; 
    private float mStartRadius = MINI_RADIUS; 
    private int mColorOrImageRes = getColorOrImageRes(); 
    private Long mDurationMills; 
    private OnAnimationEndListener mOnAnimationEndListener; 
    private int mEnterAnim = android.R.anim.fade_in, mExitAnim = android.R.anim.fade_out; 
    public FullActivityBuilder(Activity activity, View triggerView) { 
     mActivity = activity; 
     mTriggerView = triggerView; 
    } 
    public FullActivityBuilder startRadius(float startRadius) { 
     mStartRadius = startRadius; 
     return this; 
    } 

    public FullActivityBuilder colorOrImageRes(int colorOrImageRes) { 
     mColorOrImageRes = colorOrImageRes; 
     return this; 
    } 
    public FullActivityBuilder duration(long durationMills) { 
     mDurationMills = durationMills; 
     return this; 
    } 
    public FullActivityBuilder overridePendingTransition(int enterAnim, int exitAnim) { 
     mEnterAnim = enterAnim; 
     mExitAnim = exitAnim; 
     return this; 
    } 
    public void go(OnAnimationEndListener onAnimationEndListener) { 
     mOnAnimationEndListener = onAnimationEndListener; 
     if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) { 
      doOnEnd(); 
      return; 
     } 
     int[] location = new int[2]; 
     mTriggerView.getLocationInWindow(location); 
     final int cx = location[0] + mTriggerView.getWidth()/2; 
     final int cy = location[1] + mTriggerView.getHeight()/2; 
     final ImageView view = new ImageView(mActivity); 
     view.setScaleType(ImageView.ScaleType.CENTER_CROP); 
     view.setImageResource(mColorOrImageRes); 
     final ViewGroup decorView = (ViewGroup) mActivity.getWindow().getDecorView(); 
     int w = decorView.getWidth(); 
     int h = decorView.getHeight(); 
     decorView.addView(view, w, h); 
     int maxW = Math.max(cx, w - cx); 
     int maxH = Math.max(cy, h - cy); 
     final int finalRadius = (int) Math.sqrt(maxW * maxW + maxH * maxH) + 1; 
     try { 
      Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, mStartRadius, finalRadius); 
      int maxRadius = (int) Math.sqrt(w * w + h * h) + 1; 
      if (mDurationMills == null) { 
       double rate = 1d * finalRadius/maxRadius; 
       mDurationMills = (long) (getFullActivityMills() * Math.sqrt(rate)); 
      } 
      final long finalDuration = mDurationMills; 
      anim.setDuration((long) (finalDuration * 0.9)); 
      anim.addListener(new AnimatorListenerAdapter() { 
       @Override 
       public void onAnimationEnd(Animator animation) { 
        super.onAnimationEnd(animation); 
        doOnEnd(); 
        mActivity.overridePendingTransition(mEnterAnim, mExitAnim); 
        mTriggerView.postDelayed(new Runnable() { 
         @Override 
         public void run() { 
          if (mActivity.isFinishing()) return; 
          try { 
           Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, 
             finalRadius, mStartRadius); 
           anim.setDuration(finalDuration); 
           anim.addListener(new AnimatorListenerAdapter() { 
            @Override 
            public void onAnimationEnd(Animator animation) { 
             super.onAnimationEnd(animation); 
             try { 
              decorView.removeView(view); 
             } catch (Exception e) { 
              e.printStackTrace(); 
             } 
            } 
           }); 
           anim.start(); 
          } catch (Exception e) { 
           e.printStackTrace(); 
           try { 
            decorView.removeView(view); 
           } catch (Exception e1) { 
            e1.printStackTrace(); 
           } 
          } 
         } 
        }, 1000); 
       } 
      }); 
      anim.start(); 
     } catch (Exception e) { 
      e.printStackTrace(); 
      doOnEnd(); 
     } 
    } 
    private void doOnEnd() { 
     mOnAnimationEndListener.onAnimationEnd(); 
    } 
} 
public static VisibleBuilder show(View animView) { 
    return new VisibleBuilder(animView, true); 
} 
public static VisibleBuilder hide(View animView) { 
    return new VisibleBuilder(animView, false); 
} 
public static FullActivityBuilder fullActivity(Activity activity, View triggerView) { 
    return new FullActivityBuilder(activity, triggerView); 
} 
public static void init(long perfectMills, long fullActivityPerfectMills, int colorOrImageRes) { 
    sPerfectMills = perfectMills; 
    sFullActivityPerfectMills = fullActivityPerfectMills; 
    sColorOrImageRes = colorOrImageRes; 
} 

} 

Answer 1

getApplicationContext的（）

完整的代碼相關的應用程序，而不是活動的，因此，你應該使用activityname.this或getBaseContext（）和您嘗試使用應用程序上下文執行UI線程操作，活動UI相關的操作應和使用活動上下文，而不是應用程序上下文執行

Answer 2

如果你需要的是從服務訪問活動的情況下，你可以嘗試其他的東西傳遞活動場景在服務的構造。例如：

活動

public class BT_Client extends Activity{ 

    private BtService mBTService; 

    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     ... 

     mBtService = new BtService(this, ...); 
    } 
} 

服務

public class BtService { 

    Context myActivityContext; 

    public BtService(Context context, ...) { 

      myActivityContext = context; 

      ... 
    } 
} 

Answer 3

做這種方式...

1. 公共BaseService類擴展服務{

   public Context mContext; 
   
       @Override 
       public IBinder onBind(Intent intent) { 
        return null; 
       } 
   
       @Override 
       public void onCreate() { 
        super.onCreate(); 
        mContext = getApplicationContext(); 
       } }