VideoView手势（刷卡功能）的Android [英] VideoView with Gesture(Swipe function) in android
本文介绍了VideoView手势（刷卡功能）的Android的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想结合默认的 VideoView 和的姿态监听器
我要实现同样的VideoView如果用户刷卡左，那么歌曲向后播放或向右滑动则乐曲的播放着。
打开默认的媒体通过以下code球员：
意向意图=新的意图（android.intent.action.MUSIC_PLAYER）;
startActivity（意向）;
再如何添加手势听者??
解决方案我明白了如何结合VideoView和GestureListener
：
布局文件的 activity_main.xml
＆LT; LinearLayout中的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：layout_width =FILL_PARENT
机器人：layout_height =FILL_PARENT
机器人：方向=垂直＆GT;
＆LT; VideoView
机器人：ID =@ + ID / videoView
机器人：layout_width =match_parent
机器人：layout_height =match_parent/＆GT;
＆LT; / LinearLayout中＆GT;
MainActivity.java 文件：
公共类MainActivity扩展活动实现SimpleGestureListener {
VideoView videoView;
MainActivity活动;
的MediaController的MediaController;
AudioManager audioManager;
GestureDetection检测器;
INT currentPosition;
INT currentVolume;
@覆盖
保护无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_main）;
audioManager =（AudioManager）getSystemService（AUDIO_SERVICE）;
videoView =（VideoView）findViewById（R.id.videoView）;
探测器=新GestureDetection（这一点，这一点）;
意向意图=新的意图（Intent.ACTION_GET_CONTENT，
android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI）;
intent.setType（音频/ *）;
startActivityForResult（意向，1）;
}
@覆盖
公共布尔dispatchTouchEvent（MotionEvent我）{
//调用SimpleGestureFilter类的onTouchEvent
this.detector.onTouchEvent（箱）;
返回super.dispatchTouchEvent（箱）;
}
@覆盖
保护无效onActivityResult（INT申请code，INT结果code，意图数据）{
// TODO自动生成方法存根
super.onActivityResult（要求code，因此code，数据）;
字符串文件路径= NULL;
如果（要求code == 1）{
开关（结果code）{
案例RESULT_OK：
乌里selectedAudio = data.getData（）;
的String [] filePathColumn = {MediaStore.Audio.Media.DATA};
光标光标= getContentResolver（）查询（selectedAudio，
filePathColumn，NULL，NULL，NULL）;
cursor.moveToFirst（）;
INT参数：columnIndex = cursor.getColumnIndex（filePathColumn [0]）;
文件路径= cursor.getString（参数：columnIndex）;
cursor.close（）;
打破;
默认：
完（）;
}
如果（文件路径！= NULL）{
的MediaController =新的MediaController（本）;
mediaController.setAnchorView（videoView）;
开放的我们的uri = Uri.parse（文件路径）;
videoView.setMediaController（的MediaController）;
videoView.setVideoURI（URI）;
videoView.requestFocus（）;
videoView.start（）;
} 其他
完（）;
}
}
@覆盖
公共无效onSwipe（INT方向）{
// TODO自动生成方法存根
字符串str =;
开关（方向）{
案例GestureDetection.SWIPE_LEFT：
currentPosition = videoView.getCurrentPosition（）;
currentPosition = videoView.getCurrentPosition（） - 10000;
videoView.seekTo（currentPosition）;
海峡=刷卡左;
打破;
案例GestureDetection.SWIPE_RIGHT：
currentPosition = videoView.getCurrentPosition（）;
currentPosition = videoView.getCurrentPosition（）+ 10000;
videoView.seekTo（currentPosition）;
海峡=向右滑动;
打破;
案例GestureDetection.SWIPE_DOWN：
currentVolume = audioManager
.getStreamVolume（AudioManager.STREAM_MUSIC）;
audioManager.setStreamVolume（AudioManager.STREAM_MUSIC，
currentVolume - 1，0）;
海峡=向下滑动
打破;
案例GestureDetection.SWIPE_UP：
currentVolume = audioManager
.getStreamVolume（AudioManager.STREAM_MUSIC）;
audioManager.setStreamVolume（AudioManager.STREAM_MUSIC，
currentVolume + 1，0）;
海峡=向上滑动;
打破;
}
Toast.makeText（这一点，STR，Toast.LENGTH_SHORT）.show（）;
}
}
GestureDetection.java 类：
公共类GestureDetection扩展SimpleOnGestureListener {
公共最后静态INT SWIPE_UP = 1;
公共最后静态INT SWIPE_DOWN = 2;
公共最后静态INT SWIPE_LEFT = 3;
公共最后静态INT SWIPE_RIGHT = 4;
公共最后静态INT MODE_SOLID = 1;
公共最后静态INT MODE_DYNAMIC = 2;
私人最终静态INT ACTION_FAKE = -13; //只是一个不可能的数字
私人诠释swipe_Min_Distance = 50;
私人诠释swipe_Max_Distance = 350;
私人诠释swipe_Min_Velocity = 100;
私人诠释模式= MODE_DYNAMIC;
私人布尔运行=真;
私人布尔tapIndicator = FALSE;
私人活动范围内;
私人GestureDetector检测器;
私人SimpleGestureListener监听;
公共GestureDetection（活动方面，SimpleGestureListener SGL）{
this.context =背景;
this.detector =新GestureDetector（背景下，这一点）;
this.listener = SGL;
}
公共无效的onTouchEvent（MotionEvent事件）{
如果（！this.running）
返回;
布尔结果= this.detector.onTouchEvent（事件）;
如果（this.mode == MODE_SOLID）
event.setAction（MotionEvent.ACTION_CANCEL）;
否则，如果（this.mode == MODE_DYNAMIC）{
如果（event.getAction（）== ACTION_FAKE）
event.setAction（MotionEvent.ACTION_UP）;
否则，如果（结果）
event.setAction（MotionEvent.ACTION_CANCEL）;
否则，如果（this.tapIndicator）{
event.setAction（MotionEvent.ACTION_DOWN）;
this.tapIndicator = FALSE;
}
}
//其他人只是什么也不做，它是透明的
}
@覆盖
公共布尔onFling（MotionEvent E1，E2 MotionEvent，浮velocityX，
浮动velocityY）{
最终浮动xDistance = Math.abs（e1.getX（） - e2.getX（））;
最终浮动yDistance = Math.abs（e1.getY（） - e2.getY（））;
如果（xDistance＆GT; this.swipe_Max_Distance
|| yDistance＆GT; this.swipe_Max_Distance）
返回false;
velocityX = Math.abs（velocityX）;
velocityY = Math.abs（velocityY）;
布尔结果= FALSE;
如果（velocityX＆GT; this.swipe_Min_Velocity
＆功放;＆安培; xDistance＆GT; this.swipe_Min_Distance）{
如果（e1.getX（）＆GT; e2.getX（））//从右到左
this.listener.onSwipe（SWIPE_RIGHT）;
其他
this.listener.onSwipe（SWIPE_LEFT）;
结果=真;
}否则如果（velocityY＆GT; this.swipe_Min_Velocity
＆功放;＆安培; yDistance＆GT; this.swipe_Min_Distance）{
如果（e1.getY（）＆GT; e2.getY（））//自下而上
this.listener.onSwipe（SWIPE_UP）;
其他
this.listener.onSwipe（SWIPE_DOWN）;
结果=真;
}
返回结果;
}
@覆盖
公共布尔onSingleTapConfirmed（MotionEvent ARG）{
如果（this.mode == MODE_DYNAMIC）{
arg.setAction（ACTION_FAKE）;
this.context.dispatchTouchEvent（ARG）;
}
返回false;
}
静态接口SimpleGestureListener {
无效onSwipe（INT方向）;
}
}
I want to combine default VideoView and gesture listener,
I want to implement likewise on VideoView if user swipe left then song plays backward or swipe right then song plays forward.
open default media player via following code :
Intent intent = new Intent("android.intent.action.MUSIC_PLAYER");
startActivity(intent);
then how to add gesture listener ..??
解决方案
i got that how to combine VideoView and GestureListener :
layout file activity_main.xml :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<VideoView
android:id="@+id/videoView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
MainActivity.java file :
public class MainActivity extends Activity implements SimpleGestureListener {
VideoView videoView;
MainActivity activity;
MediaController mediaController;
AudioManager audioManager;
GestureDetection detector;
int currentPosition;
int currentVolume;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
videoView = (VideoView) findViewById(R.id.videoView);
detector = new GestureDetection(this, this);
Intent intent = new Intent(Intent.ACTION_GET_CONTENT,
android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI);
intent.setType("audio/*");
startActivityForResult(intent, 1);
}
@Override
public boolean dispatchTouchEvent(MotionEvent me) {
// Call onTouchEvent of SimpleGestureFilter class
this.detector.onTouchEvent(me);
return super.dispatchTouchEvent(me);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
String filePath = null;
if (requestCode == 1) {
switch (resultCode) {
case RESULT_OK:
Uri selectedAudio = data.getData();
String[] filePathColumn = { MediaStore.Audio.Media.DATA };
Cursor cursor = getContentResolver().query(selectedAudio,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
filePath = cursor.getString(columnIndex);
cursor.close();
break;
default:
finish();
}
if (filePath != null) {
mediaController = new MediaController(this);
mediaController.setAnchorView(videoView);
Uri uri = Uri.parse(filePath);
videoView.setMediaController(mediaController);
videoView.setVideoURI(uri);
videoView.requestFocus();
videoView.start();
} else
finish();
}
}
@Override
public void onSwipe(int direction) {
// TODO Auto-generated method stub
String str = "";
switch (direction) {
case GestureDetection.SWIPE_LEFT:
currentPosition = videoView.getCurrentPosition();
currentPosition = videoView.getCurrentPosition() - 10000;
videoView.seekTo(currentPosition);
str = "Swipe Left";
break;
case GestureDetection.SWIPE_RIGHT:
currentPosition = videoView.getCurrentPosition();
currentPosition = videoView.getCurrentPosition() + 10000;
videoView.seekTo(currentPosition);
str = "Swipe Right";
break;
case GestureDetection.SWIPE_DOWN:
currentVolume = audioManager
.getStreamVolume(AudioManager.STREAM_MUSIC);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
currentVolume - 1, 0);
str = "Swipe Down";
break;
case GestureDetection.SWIPE_UP:
currentVolume = audioManager
.getStreamVolume(AudioManager.STREAM_MUSIC);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
currentVolume + 1, 0);
str = "Swipe Up";
break;
}
Toast.makeText(this, str, Toast.LENGTH_SHORT).show();
}
}
GestureDetection.java class :
public class GestureDetection extends SimpleOnGestureListener {
public final static int SWIPE_UP = 1;
public final static int SWIPE_DOWN = 2;
public final static int SWIPE_LEFT = 3;
public final static int SWIPE_RIGHT = 4;
public final static int MODE_SOLID = 1;
public final static int MODE_DYNAMIC = 2;
private final static int ACTION_FAKE = -13; // just an unlikely number
private int swipe_Min_Distance = 50;
private int swipe_Max_Distance = 350;
private int swipe_Min_Velocity = 100;
private int mode = MODE_DYNAMIC;
private boolean running = true;
private boolean tapIndicator = false;
private Activity context;
private GestureDetector detector;
private SimpleGestureListener listener;
public GestureDetection(Activity context, SimpleGestureListener sgl) {
this.context = context;
this.detector = new GestureDetector(context, this);
this.listener = sgl;
}
public void onTouchEvent(MotionEvent event) {
if (!this.running)
return;
boolean result = this.detector.onTouchEvent(event);
if (this.mode == MODE_SOLID)
event.setAction(MotionEvent.ACTION_CANCEL);
else if (this.mode == MODE_DYNAMIC) {
if (event.getAction() == ACTION_FAKE)
event.setAction(MotionEvent.ACTION_UP);
else if (result)
event.setAction(MotionEvent.ACTION_CANCEL);
else if (this.tapIndicator) {
event.setAction(MotionEvent.ACTION_DOWN);
this.tapIndicator = false;
}
}
// else just do nothing, it's Transparent
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
final float xDistance = Math.abs(e1.getX() - e2.getX());
final float yDistance = Math.abs(e1.getY() - e2.getY());
if (xDistance > this.swipe_Max_Distance
|| yDistance > this.swipe_Max_Distance)
return false;
velocityX = Math.abs(velocityX);
velocityY = Math.abs(velocityY);
boolean result = false;
if (velocityX > this.swipe_Min_Velocity
&& xDistance > this.swipe_Min_Distance) {
if (e1.getX() > e2.getX()) // right to left
this.listener.onSwipe(SWIPE_RIGHT);
else
this.listener.onSwipe(SWIPE_LEFT);
result = true;
} else if (velocityY > this.swipe_Min_Velocity
&& yDistance > this.swipe_Min_Distance) {
if (e1.getY() > e2.getY()) // bottom to up
this.listener.onSwipe(SWIPE_UP);
else
this.listener.onSwipe(SWIPE_DOWN);
result = true;
}
return result;
}
@Override
public boolean onSingleTapConfirmed(MotionEvent arg) {
if (this.mode == MODE_DYNAMIC) {
arg.setAction(ACTION_FAKE);
this.context.dispatchTouchEvent(arg);
}
return false;
}
static interface SimpleGestureListener {
void onSwipe(int direction);
}
}
这篇关于VideoView手势（刷卡功能）的Android的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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