本文介绍了ViewPager 滑动上一个声音的处理方法,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
在这里我使用 viewpager 来滑动我的图像 &它在每次图像滑动时播放不同的声音.现在它工作正常但是当我向后滑动时声音与图像不匹配...
Here i am using viewpager to swipe my images & it plays different sound on each image swipe. Now Its working fine but when i swipe back the sound does not match the image...
我的代码:-
图像页面适配器
package com.android.learning_numbers;
public class ImagePagerAdapter {
}
主要活动
package com.android.learning_numbers;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
public class Numbers extends Activity {
MediaPlayer mp;
MediaPlayer player;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_numbers);
ViewPager viewPager = (ViewPager)findViewById(R.id.view_pager);
ImagePagerAdapter adapter = new ImagePagerAdapter();
viewPager.setAdapter(adapter);
player = MediaPlayer.create(this, R.raw.jingle);
player.setLooping(true);
player.setVolume(100, 100);
player.start();
}
@Override
protected void onPause() {
super.onPause();
player.pause();
}
@Override
protected void onResume() {
super.onResume();
player.start();
}
private class ImagePagerAdapter extends PagerAdapter {
private int[] mImages = new int[] {R.drawable.no1,R.drawable.no2,R.drawable.no3,R.drawable.no4,R.drawable.no5,R.drawable.no6,R.drawable.no7,R.drawable.no8,R.drawable.no9,R.drawable.no10,R.drawable.bg2,};
private int[] mAudio = new int[]{R.raw.one,R.raw.two,R.raw.three,R.raw.four,R.raw.five,R.raw.six,R.raw.seven,R.raw.eight,R.raw.nine,R.raw.ten,R.raw.one,};
@Override
public int getCount() {
return mImages.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == ((ImageView) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
Context context = Numbers.this;
ImageView imageView = new ImageView(context);
int padding =context.getResources().
getDimensionPixelSize(R.dimen.activity_vertical_margin);
imageView.setPadding(padding, padding, padding, padding);
imageView.setScaleType(ImageView.ScaleType.CENTER);
imageView.setImageResource(mImages[position]);
((ViewPager) container).addView(imageView, 0);
if(position>=1){
mp = MediaPlayer.create(Numbers.this, mAudio[position-1]);
mp.start();
}
return imageView;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((ImageView) object);
}
}
}
推荐答案
我找到了答案.现在这是绝对有效的代码
I found my answer. Now this is the code which definitely work
public class Numbers extends Activity {
MediaPlayer mp;
MediaPlayer BG;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_numbers);
ViewPagerAdapter adapter = new ViewPagerAdapter(this, imageArra);
ViewPager myPager = (ViewPager) findViewById(R.id.myfivepanelpager);
myPager.setOnPageChangeListener(player);
myPager.setAdapter(adapter);
myPager.setCurrentItem(0);
BG = MediaPlayer.create(this, R.raw.jingle);
BG.setLooping(true);
BG.setVolume(100, 100);
BG.start();
mp = MediaPlayer.create(Numbers.this, mAudio[0]);
mp.start();
}
@Override
protected void onPause() {
super.onPause();
BG.pause();
}
@Override
protected void onResume() {
super.onResume();
BG.start();
}
private int[] mAudio = new int[]{R.raw.one,
R.raw.two,
R.raw.three,
R.raw.four,
R.raw.five,
R.raw.six,
R.raw.seven,
R.raw.eight,
R.raw.nine,
R.raw.ten};
private int imageArra[] = {R.drawable.no1,
R.drawable.no2,
R.drawable.no3,
R.drawable.no4,
R.drawable.no5,
R.drawable.no6,
R.drawable.no7,
R.drawable.no8,
R.drawable.no9,
R.drawable.no10};
public OnPageChangeListener player = new OnPageChangeListener()
{
@Override
public void onPageSelected(int arg1)
{
mp = MediaPlayer.create(Numbers.this, mAudio[arg1]);
mp.start();
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2)
{
}
@Override
public void onPageScrollStateChanged(int arg0)
{
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.numbers, menu);
return true;
}
}
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