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使用和机器人的双开关事件
原标题:Double tap event in android
  • 时间:2012-05-22 09:44:45
  •  标签:
  • android

我要在双击屏幕上烤面包。 我尝试了下面的代码。 但是它没有作用。 没有烤面包在双击上。 这些代码有什么问题吗?

package a.b.c;

import android.app.Activity;
import android.os.Bundle;
import android.view.GestureDetector.OnDoubleTapListener;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.widget.Toast;



public class SampleActivity extends Activity implements OnDoubleTapListener,OnGestureListener
{
        @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    @Override
    public boolean onDoubleTap(MotionEvent e) {
        if(e.getAction()==1)
        {
        Toast.makeText(getBaseContext(), "onDoubleTap", Toast.LENGTH_LONG).show();
        }
        return true;
    }

    @Override
    public boolean onDoubleTapEvent(MotionEvent e) {
        if(e.getAction()==1)
        {
        Toast.makeText(getBaseContext(), "onDoubleTapEvent", Toast.LENGTH_LONG).show();
        }
        return true;
    }

    @Override
    public boolean onSingleTapConfirmed(MotionEvent e) {
        if(e.getAction()==1)
        {
        Toast.makeText(getBaseContext(), "onSingleTapConfirmed", Toast.LENGTH_LONG).show();
        }
        return true;
    }

我还实施了OnGesture听力器方法,但无效。请帮助。

最佳回答

您将双调听器设置在哪里? 尝试将它添加到您的创建中, 看看它是否修正了问题

GestureDetector detector = new GestureDetector(this, this);
问题回答

暂无回答




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