用户输入 i. 检测常用手势(一)
2016-01-22 10:58
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参考:
http://blog.csdn.net/qq418716640/article/details/8508973 http://www.cnblogs.com/mengdd/p/3335508.html效果:一个手指实现(所有手势事件)和(部分事件的);A. 所有手势activity_main.xml
B. 部分手势如果你仅仅只想处理几种手势,你可以选择继承GestureDetector.SimpleOnGestureListener类,而不是实现
GestureDetector.OnGestureListener接口MainActivity.java
http://blog.csdn.net/qq418716640/article/details/8508973 http://www.cnblogs.com/mengdd/p/3335508.html效果:一个手指实现(所有手势事件)和(部分事件的);A. 所有手势activity_main.xml
<TextView android:id="@+id/gesture" android:layout_width="match_parent" android:layout_height="150dp" android:gravity="center" android:text="单击手势变化" /> <TextView android:id="@+id/doubleTap" android:layout_width="match_parent" android:layout_height="150dp" android:gravity="center" android:text="双击手势变化" />MainActivity.java
public class MainActivity extends Activity { private static final String LOG_TAG = "HelloGesture"; private GestureDetector mGestureDetector = null; private TextView mGestureTextView = null; private TextView mDoubleTapTextView = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mGestureTextView = (TextView) findViewById(R.id.gesture); mDoubleTapTextView = (TextView) findViewById(R.id.doubleTap); // 构造GestureDetector对象,传入监听器对象 mGestureDetector = new GestureDetector(this, mOnGestureListener); // 传入双击监听器对象 mGestureDetector.setOnDoubleTapListener(mDoubleTapListener); } @Override public boolean onTouchEvent(MotionEvent event) { // 在onTouchEvent方法中将事件传递给手势检测对象,否则手势监听对象中的回调函数是不会被调用的 mGestureDetector.onTouchEvent(event); return super.onTouchEvent(event); } private OnGestureListener mOnGestureListener = new OnGestureListener() { @Override public boolean onSingleTapUp(MotionEvent e) { Log.i(LOG_TAG, "onSingleTapUp: " + e.toString()); mGestureTextView.setText("onSingleTapUp: "); return false; } @Override public void onShowPress(MotionEvent e) { Log.i(LOG_TAG, "onShowPress: " + e.toString()); mGestureTextView.setText("onShowPress: "); } @Override public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { Log.i(LOG_TAG, "onScroll: " + e1.toString() + ", " + e2.toString()); mGestureTextView.setText("onScroll "); return false; } @Override public void onLongPress(MotionEvent e) { Log.i(LOG_TAG, "onLongPress: " + e.toString()); mGestureTextView.setText("onLongPress: "); } @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { Log.i(LOG_TAG, "onFling: " + e1.toString() + ", " + e2.toString()); mGestureTextView.setText("onFling "); return false; } @Override public boolean onDown(MotionEvent e) { Log.i(LOG_TAG, "onDown: " + e.toString()); mGestureTextView.setText("onDown: "); return false; } };
private OnDoubleTapListener mDoubleTapListener = new OnDoubleTapListener() { @Override public boolean onSingleTapConfirmed(MotionEvent e) { Log.i("LOG_TAG", "onSingleTapConfirmed: " + e.toString()); mDoubleTapTextView.setText("onSingleTapConfirmed: "); return false; } @Override public boolean onDoubleTapEvent(MotionEvent e) { Log.i("LOG_TAG", "onDoubleTapEvent: " + e.toString()); mDoubleTapTextView.setText("onDoubleTapEvent: "); return false; } @Override public boolean onDoubleTap(MotionEvent e) { Log.i("LOG_TAG", "onDoubleTap: " + e.toString()); mDoubleTapTextView.setText("onDoubleTap: "); return false; } }; }
B. 部分手势如果你仅仅只想处理几种手势,你可以选择继承GestureDetector.SimpleOnGestureListener类,而不是实现
GestureDetector.OnGestureListener接口MainActivity.java
public class MainActivity extends Activity {private GestureDetector mGestureDetector = null;
private TextView mGestureTextView = null;
private TextView mDoubleTapTextView = null;@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mGestureTextView = (TextView) findViewById(R.id.gesture);
mDoubleTapTextView = (TextView) findViewById(R.id.doubleTap);
// 构造GestureDetector对象,传入监听器对象
mGestureDetector = new GestureDetector(this, new MyGestureListener());
// 传入双击监听器对象}@Override
public boolean onTouchEvent(MotionEvent event) {
// 在onTouchEvent方法中将事件传递给手势检测对象,否则手势监听对象中的回调函数是不会被调用的
this.mGestureDetector.onTouchEvent(event);
return super.onTouchEvent(event);
}
class MyGestureListener extends GestureDetector.SimpleOnGestureListener {
private static final String DEBUG_TAG = "Gestures";@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
Log.d(DEBUG_TAG, "onFling: " + e1.toString() + ", " + e2.toString());
mGestureTextView.setText("onFling ");
return false;
}@Override
public boolean onDown(MotionEvent e) {
Log.d(DEBUG_TAG, "onDown: " + e.toString());
mGestureTextView.setText("onDown: ");
return false;}
}}
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