Java 手机屏幕上的双击手势
我想知道我们是否可以在android中识别屏幕上的双击动作 我找到了很多与双击手势相关的代码,但没有找到用于屏幕的代码。请让我知道它是否存在于API中 这就像我们点击手机屏幕,它会像在windows phone中一样启动操作。当我们双击手机屏幕时,它会从稳定模式进入on模式 我用这个代码做双击手势Java 手机屏幕上的双击手势,java,android,gesture-recognition,Java,Android,Gesture Recognition,我想知道我们是否可以在android中识别屏幕上的双击动作 我找到了很多与双击手势相关的代码,但没有找到用于屏幕的代码。请让我知道它是否存在于API中 这就像我们点击手机屏幕,它会像在windows phone中一样启动操作。当我们双击手机屏幕时,它会从稳定模式进入on模式 我用这个代码做双击手势 package a.b.c; import android.app.Activity; import android.os.Bundle; import android.view.GestureDe
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;
}
将以下代码添加到您的活动中
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.GestureDetector.OnDoubleTapListener;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.widget.LinearLayout;
import android.widget.TextView;
public class Main extends Activity implements OnGestureListener, OnDoubleTapListener
{
private LinearLayout main;
private TextView viewA;
private GestureDetector gestureScanner;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
gestureScanner = new GestureDetector(this);
main = new LinearLayout(this);
main.setBackgroundColor(Color.GRAY);
main.setLayoutParams(new LinearLayout.LayoutParams(320,480));
viewA = new TextView(this);
viewA.setBackgroundColor(Color.YELLOW);
viewA.setTextColor(Color.BLACK);
viewA.setTextSize(16);
viewA.setLayoutParams(new LinearLayout.LayoutParams(320,80));
main.addView(viewA);
setContentView(main);
}
@Override
public boolean onTouchEvent(MotionEvent me)
{
return gestureScanner.onTouchEvent(me);
}
@Override
public boolean onDown(MotionEvent e)
{
viewA.setText("-" + "DOWN" + "-");
return true;
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)
{
viewA.setText("-" + "FLING" + "-");
return true;
}
@Override
public void onLongPress(MotionEvent e)
{
viewA.setText("-" + "LONG PRESS" + "-");
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY)
{
viewA.setText("-" + "SCROLL" + "-");
return true;
}
@Override
public void onShowPress(MotionEvent e)
{
viewA.setText("-" + "SHOW PRESS" + "-");
}
@Override
public boolean onSingleTapUp(MotionEvent e)
{
viewA.setText("-" + "SINGLE TAP UP" + "-");
return true;
}
@Override
public boolean onDoubleTap(MotionEvent e) {
viewA.setText("-" + "DOUBLE TAP" + "-");
return true;
}
@Override
public boolean onDoubleTapEvent(MotionEvent e) {
viewA.setText("-" + "DOUBLE TAP EVENT" + "-");
return true;
}
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
viewA.setText("-" + "SINGLE TAP CONFORMED" + "-");
return true;
}
}
我希望它能帮助您:)老板,它不工作,我想要的是用户双击屏幕,然后我会在屏幕上执行此操作。!!!:)如果我只想要双击的东西而不担心其他的呢?嗨,你解决了这个问题吗?如果是,请您帮助我,我的要求是相同的。是的,您可以使用第三方应用程序/启动器进行相同的操作。!!谢谢