一.当viewpager无法抑制满足循环滑动时,以及需要手势动作时,就用到了viewFlipper
1.代码演示
(1)布局
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.example.my_android_gestrue.MainActivity"> <ViewFlipper android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/vf_main_image" ></ViewFlipper> </LinearLayout> (2)activity
package com.example.my_android_gestrue; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.GestureDetector; import android.view.MotionEvent; import android.widget.ImageView; import android.widget.Toast; import android.widget.ViewFlipper; public class MainActivity extends AppCompatActivity { private ViewFlipper vf_main_image; private int iamges []={R.drawable.s1,R.drawable.s2,R.drawable.s3}; private GestureDetector gd; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); vf_main_image = (ViewFlipper) findViewById(R.id.vf_main_image); for (int i = 0; i < iamges.length; i++) { ImageView iv=new ImageView(this); iv.setImageResource(iamges[i]); vf_main_image.addView(iv); } //实例化手势检测器类 //按下,但是还未抬起 //轻按,按一下,立刻抬起 //滚动 //长按 //拖动 gd = new GestureDetector(this, new GestureDetector.OnGestureListener() { @Override public boolean onDown(MotionEvent motionEvent) { Log.i("test","onDown"); return false; } //按下,但是还未抬起 @Override public void onShowPress(MotionEvent motionEvent) { Log.i("test","onShowPress"); } //轻按,按一下,立刻抬起 @Override public boolean onSingleTapUp(MotionEvent motionEvent) { Log.i("test","onSingleTapUp"); return false; } //滚动 @Override public boolean onScroll(MotionEvent motionEvent, MotionEvent motionEvent1, float v, float v1) { Log.i("test","onScroll"); return false; } //长按 @Override public void onLongPress(MotionEvent motionEvent) { Log.i("test","onLongPress"); } //拖动 @Override public boolean onFling(MotionEvent motionEvent, MotionEvent motionEvent1, float v, float v1) { Log.i("test","onFling"); if (motionEvent1.getX()-motionEvent.getX()>200){ Toast.makeText(MainActivity.this, "右滑,下一张", Toast.LENGTH_SHORT).show(); vf_main_image.showPrevious(); //左进右出 vf_main_image.setInAnimation(MainActivity.this,R.anim.left_in); vf_main_image.setOutAnimation(MainActivity.this,R.anim.right_out); } if (motionEvent.getX()-motionEvent1.getX()>200){ Toast.makeText(MainActivity.this, "左滑,下一张", Toast.LENGTH_SHORT).show(); vf_main_image.showPrevious(); //左出右进 vf_main_image.setInAnimation(MainActivity.this,R.anim.right_in); vf_main_image.setOutAnimation(MainActivity.this,R.anim.left_out); } return false; } }); } @Override public boolean onTouchEvent(MotionEvent event) { return gd.onTouchEvent(event); } }
(3)你要设置图片进行怎样的滑动,就新建一个包anim
四个set,xml
A.左滑:
//左出右进 left_out.xml(左出) <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" android:duration="1000" > <translate android:fromXDelta="0" android:toXDelta="-100%p" ></translate> <rotate android:fromDegrees="0" android:toDegrees="-360" android:pivotX="50%" android:pivotY="50%" ></rotate> </set> right_in.xml(右进) <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" android:duration="1000" > <translate android:fromXDelta="100%p" android:toXDelta="0" ></translate> <rotate android:fromDegrees="0" android:toDegrees="-360" android:pivotX="50%" android:pivotY="50%" ></rotate> </set> B.右滑: //左进右出 left_in.xml(左进) <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" android:duration="1000" > <translate android:fromXDelta="-100%p" android:toXDelta="0" ></translate> <rotate android:fromDegrees="0" android:toDegrees="360" android:pivotX="50%" android:pivotY="50%" ></rotate> </set> right_out.xml(右出) <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" android:duration="1000" > <translate android:fromXDelta="0" android:toXDelta="100%p" ></translate> <rotate android:fromDegrees="0" android:toDegrees="360" android:pivotX="50%" android:pivotY="50%" ></rotate> </set> ok,完成了!
