Android_view的触摸反馈

• 触摸控件使其能够有一定变化并且能够相应点击事件.
• 这里简单实现view被触摸,做一个放大缩小的动画.
• 而且用的时候要像直接设置view的onClickListener一样简单.

• 我是在项目中有这样的需求就简单的实现了一下,今天做个记录.

  /**

  • Created by Qin_Li_Yang on 2017/11/14.
  • 创建一个TouchFeedback类
  • 这里使用单利模式,应该是可以的哈哈.
    */

  public class TouchFeedback {
  /**
  * 缩放动画的单方面时长,假如是100,是指放大100,当手指离开缩小又是100.
  */
  private int duration = 100;
  /**
  * 放大或者缩小的值
  */
  private float aFloatBig = 1.2f;

  /**
   * 可以自己设定
   *
   * @param duration
   * @param aFloatBig
   */
  public void setDurationAndFloatBig(int duration, float aFloatBig) {
      this.duration = duration;
      this.aFloatBig = aFloatBig;
  }
  
  /**
   * 私有构造
   */
  private TouchFeedback() {
  }
  
  /**
   * 定义回调的接口
   */
  public interface TouchFeedbackListener {
      void onFeedback(View view);
  }
  
  private static TouchFeedback touchFeedback = null;
  
  public static TouchFeedback getTouchFeedbackInstance() {
      if (touchFeedback == null) {
          synchronized (TouchFeedback.class) {
              if (touchFeedback == null) {
                  touchFeedback = new TouchFeedback();
              }
          }
      }
      return touchFeedback;
  }
  
  /**
   * 触摸的监听
   * @param touchFeedListener
   * @param view
   */
  public void setTouchFeedListener(final TouchFeedback.TouchFeedbackListener touchFeedListener, View view) {
      view.setOnTouchListener(new View.OnTouchListener() {
          @Override
          public boolean onTouch(View v, MotionEvent event) {
              switch (event.getAction()) {
                  case MotionEvent.ACTION_DOWN:
                      scaleBig(v);
                      break;
                  case MotionEvent.ACTION_MOVE:
  
                      break;
  
                  case MotionEvent.ACTION_UP:
                      scaleSmall(v, true, touchFeedListener);
  
                      break;
                  case MotionEvent.ACTION_CANCEL:
                      scaleSmall(v, false, touchFeedListener);
                      break;
              }
              return true;
          }
      });
  }
  
  /**
   * 恢复原形的动画
   * @param v
   * @param b
   * @param touchFeedListener
   */
  private void scaleSmall(final View v, boolean b, final TouchFeedbackListener touchFeedListener) {
      ObjectAnimator objectAnimator2 = ObjectAnimator.ofFloat(v, "ScaleX", aFloatBig, 1f).setDuration(duration);
      ObjectAnimator objectAnimator3 = ObjectAnimator.ofFloat(v, "ScaleY", aFloatBig, 1f).setDuration(duration);
      objectAnimator2.start();
      objectAnimator3.start();
      if (b) {
      /**动画执行的监听**/
          objectAnimator2.addListener(new Animator.AnimatorListener() {
              @Override
              public void onAnimationStart(Animator animation) {
  
              }
  
              /**
               * 动画结束
               * @param animation
               */
              @Override
              public void onAnimationEnd(Animator animation) {
                  touchFeedListener.onFeedback(v);
              }
  
              @Override
              public void onAnimationCancel(Animator animation) {
  
              }
  
              @Override
              public void onAnimationRepeat(Animator animation) {
  
              }
          });
      }
  
  
  }
  
          /**
           * 变大的动画
           * @param v
           */
          private void scaleBig(View v) {
              ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(v, "ScaleX", 1f, aFloatBig).setDuration(duration);
              ObjectAnimator objectAnimator1 = ObjectAnimator.ofFloat(v, "ScaleY", 1f, aFloatBig).setDuration(duration);
              objectAnimator.start();
              objectAnimator1.start();
          }
      }
  

  • 简单使用
    /**

    • 实现刚才写的那个类里面的TouchFeedbackListener接口
      */
      public class MainActivity extends AppCompatActivity implements TouchFeedback.TouchFeedbackListener {

    private Button t1;
    private Button t2;
    private Button t3;
    private Button t4;
    private Button t5;
    private Button t6;

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

    private void initView() {
    t1 = (Button) findViewById(R.id.t1);
    t2 = (Button) findViewById(R.id.t2);
    t3 = (Button) findViewById(R.id.t3);
    t4 = (Button) findViewById(R.id.t4);
    t5 = (Button) findViewById(R.id.t5);
    t6 = (Button) findViewById(R.id.t6);

    TouchFeedback touchFeedbackInstance = TouchFeedback.getTouchFeedbackInstance();
    touchFeedbackInstance.setDurationAndFloatBig(300, 1.5f);
    touchFeedbackInstance.setTouchFeedListener(this, t1);
    touchFeedbackInstance.setTouchFeedListener(this, t2);
    touchFeedbackInstance.setTouchFeedListener(this, t3);
    touchFeedbackInstance.setTouchFeedListener(this, t4);
    touchFeedbackInstance.setTouchFeedListener(this, t5);
    touchFeedbackInstance.setTouchFeedListener(this, t6);
        }
    
        /**
         * 这里像onclick一样
         * @param view
         */
        @Override
        public void onFeedback(View view) {
            switch (view.getId()) {
                case R.id.t1:
                    Toast.makeText(this, "t1", Toast.LENGTH_LONG).show();
                    break;
                case R.id.t2:
                    Toast.makeText(this, "t2", Toast.LENGTH_LONG).show();
                    break;
                case R.id.t3:
                    Toast.makeText(this, "t3", Toast.LENGTH_LONG).show();
                    break;
                case R.id.t4:
                    Toast.makeText(this, "t4", Toast.LENGTH_LONG).show();
                    break;
                case R.id.t5:
                    Toast.makeText(this, "t5", Toast.LENGTH_LONG).show();
                    break;
                case R.id.t6:
                    Toast.makeText(this, "t6", Toast.LENGTH_LONG).show();
                    break;
            }
        }
    }
    

源码