Android 检测viewpager中的触摸/点击事件
我对android开发还很陌生,目前我正在使用一个viewpager,试图了解如何处理触摸/点击事件。我整个上午都在寻找答案,但似乎找不到任何对我有帮助的东西 基本上,我有一个带有5个片段的viewpager,它们都使用相同的布局。我想做的就是能够检测到在静止视图上何时有点击/触摸(我不希望在拖动视图时发生任何检测) 据我所知,ViewPager默认拦截所有触摸事件似乎存在问题。我相信这可以通过以下方式解决:Android 检测viewpager中的触摸/点击事件,android,android-viewpager,Android,Android Viewpager,我对android开发还很陌生,目前我正在使用一个viewpager,试图了解如何处理触摸/点击事件。我整个上午都在寻找答案,但似乎找不到任何对我有帮助的东西 基本上,我有一个带有5个片段的viewpager,它们都使用相同的布局。我想做的就是能够检测到在静止视图上何时有点击/触摸(我不希望在拖动视图时发生任何检测) 据我所知,ViewPager默认拦截所有触摸事件似乎存在问题。我相信这可以通过以下方式解决: myPager.requestDisallowInterceptTouchEvent(
myPager.requestDisallowInterceptTouchEvent(true);
起初,我涉猎了OnTouchListener,并试图记录onTouch方法是否曾被命中——似乎没有。我也看到了GestureDetector类作为这个问题的解决方案被大量抛出,但坦率地说,我感到不知所措,我不确定我应该在这里使用哪些类/接口
我只想在使用ViewPager时选择简单的触摸/点击事件
目前,我正在使用android开发者网站上的动画教程代码的修改版本。这是我的MainActivity.java文件中的内容:
package com.example.pbinteractive;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
public class MainActivity extends FragmentActivity {
/**
* The number of pages (wizard steps) to show in this demo.
*/
private static final int NUM_PAGES = 5;
/**
* The pager widget, which handles animation and allows swiping horizontally to access previous
* and next wizard steps.
*/
private ViewPager mPager;
/**
* The pager adapter, which provides the pages to the view pager widget.
*/
private PagerAdapter mPagerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Instantiate a ViewPager and a PagerAdapter.
mPager = (ViewPager) findViewById(R.id.pager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
}
/**
* A simple pager adapter that represents 5 {@link ScreenSlidePageFragment} objects, in
* sequence.
*/
private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
public ScreenSlidePagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
return MyPageFragment.create(position);
}
@Override
public int getCount() {
return NUM_PAGES;
}
}
}
package com.example.pbinteractive;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
public class MyPageFragment extends Fragment implements OnTouchListener {
/**
* The argument key for the page number this fragment represents.
*/
public static final String ARG_PAGE = "page";
/**
* The fragment's page number, which is set to the argument value for {@link #ARG_PAGE}.
*/
private int mPageNumber;
/**
* Factory method for this fragment class. Constructs a new fragment for the given page number.
*/
public static MyPageFragment create(int pageNumber) {
MyPageFragment fragment = new MyPageFragment();
Bundle args = new Bundle();
args.putInt(ARG_PAGE, pageNumber);
fragment.setArguments(args);
return fragment;
}
public MyPageFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPageNumber = getArguments().getInt(ARG_PAGE);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout containing a title and body text.
ViewGroup rootView = (ViewGroup) inflater
.inflate(R.layout.fragment_slide, container, false);
// Set the title view to show the page number.
//((TextView) rootView.findViewById(android.R.id.text1)).setText(
// getString(R.string.title_template_step, mPageNumber + 1));
return rootView;
}
/**
* Returns the page number represented by this fragment object.
*/
public int getPageNumber() {
return mPageNumber;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
return false;
}
}
这就是我的MyPageFragment.java文件中的内容:
package com.example.pbinteractive;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
public class MainActivity extends FragmentActivity {
/**
* The number of pages (wizard steps) to show in this demo.
*/
private static final int NUM_PAGES = 5;
/**
* The pager widget, which handles animation and allows swiping horizontally to access previous
* and next wizard steps.
*/
private ViewPager mPager;
/**
* The pager adapter, which provides the pages to the view pager widget.
*/
private PagerAdapter mPagerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Instantiate a ViewPager and a PagerAdapter.
mPager = (ViewPager) findViewById(R.id.pager);
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
}
/**
* A simple pager adapter that represents 5 {@link ScreenSlidePageFragment} objects, in
* sequence.
*/
private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
public ScreenSlidePagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
return MyPageFragment.create(position);
}
@Override
public int getCount() {
return NUM_PAGES;
}
}
}
package com.example.pbinteractive;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
public class MyPageFragment extends Fragment implements OnTouchListener {
/**
* The argument key for the page number this fragment represents.
*/
public static final String ARG_PAGE = "page";
/**
* The fragment's page number, which is set to the argument value for {@link #ARG_PAGE}.
*/
private int mPageNumber;
/**
* Factory method for this fragment class. Constructs a new fragment for the given page number.
*/
public static MyPageFragment create(int pageNumber) {
MyPageFragment fragment = new MyPageFragment();
Bundle args = new Bundle();
args.putInt(ARG_PAGE, pageNumber);
fragment.setArguments(args);
return fragment;
}
public MyPageFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPageNumber = getArguments().getInt(ARG_PAGE);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout containing a title and body text.
ViewGroup rootView = (ViewGroup) inflater
.inflate(R.layout.fragment_slide, container, false);
// Set the title view to show the page number.
//((TextView) rootView.findViewById(android.R.id.text1)).setText(
// getString(R.string.title_template_step, mPageNumber + 1));
return rootView;
}
/**
* Returns the page number represented by this fragment object.
*/
public int getPageNumber() {
return mPageNumber;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
return false;
}
}
仅供参考,我已经检查了这两种资源,因为它们经常被认为是我所面临问题的最佳解决方案(根据我所能收集到的):
但是我没有从他们那里得到多少帮助。就像我说的,我对安卓系统还很陌生,所以我真的很想熟悉它的基本知识
谢谢
编辑:为了澄清,我想在每个片段中选择触摸事件,因为一旦我越过这个障碍,我希望一些片段可以让触摸事件工作,而其他片段只显示无响应的内容。你想只触摸viewpager吗?还是里面的碎片?谢谢你!它现在正在拾取触摸事件,但它也在拾取滑动事件。是否可以在浏览视图时忽略触摸,但在视图静止时检测到触摸?处理MotionEvent代码if(event==MotionEvent.ACTION\u DOWN)//处理,if(event==MotionEvent.MOVE)//skipaha,我明白了。非常感谢!如何区分向右滑动与向左滑动的不同动作,以及当x坐标从此点开始增加时,向右滑动,否则向左滑动。还有一些方法可以确定左右移动
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout containing a title and body text.
ViewGroup rootView = (ViewGroup) inflater
.inflate(R.layout.fragment_slide, container, false);
LinearLayout layout = (LinearLayout)rootView.findViewById(R.id.layout)// get your root layout
layout.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
Log.v(null, "TOUCH EVENT"); // handle your fragment number here
return false;
}
});
return rootView;
}