代码不多,就懒得加注释了.原谅我的懒.
缩略图获取那块,没有加用线程.可能会在有些低端机上面或者高清的视频会出现FC的情况.需要的童鞋.自行添加.
附代码:
package com.tan.videoselectthumbnail;import java.lang.ref.WeakReference;import java.util.ArrayList;import java.util.List;import java.util.logging.Logger;import com.tan.videoselectthumbnail.R;import android.app.Activity;import android.content.Context;import android.graphics.Bitmap;import android.media.MediaMetadataRetriever;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.util.DisplayMetrics;import android.util.Log;import android.view.GestureDetector;import android.view.Menu;import android.view.MenuItem;import android.view.MotionEvent;import android.view.View;import android.view.View.OnTouchListener;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.LinearLayout.LayoutParams;import android.widget.RelativeLayout;public class MainActivity extends Activity { private static LinearLayout linearLayout; private static Context context; private RelativeLayout rl_l; private ImageView imageviewPreview,ivw_to2; private GestureDetector mGestureDetector; private RelativeLayout.LayoutParams lp; private List<Bitmap> bitmaps; private int wWidth,iWidth,tWidth; private int arrayWidth[]; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); linearLayout=(LinearLayout) findViewById(R.id.ll); context=this; rl_l=(RelativeLayout) findViewById(R.id.rl_l); imageviewPreview=(ImageView) findViewById(R.id.ivw_to); ivw_to2=(ImageView) findViewById(R.id.ivw_to2); Uri uri=Uri.parse("android.resource://" + getPackageName() + "/" +R.raw.test); bitmaps=new ArrayList<Bitmap>(); getVideoThumbnail(uri); rl_l.setOnTouchListener(new OnTouchListener() { public boolean onTouch(View v, MotionEvent event) { return (mGestureDetector != null)&& mGestureDetector.onTouchEvent(event); } }); lp=(android.widget.RelativeLayout.LayoutParams) imageviewPreview.getLayoutParams(); mGestureDetector = new GestureDetector(this,new CoverGestureListener()); wWidth=getWindowManager().getDefaultDisplay().getWidth(); } public void onWindowFocusChanged(boolean hasFocus) { iWidth=imageviewPreview.getWidth(); iWidth=wWidth-iWidth; tWidth=iWidth/10; arrayWidth=new int[10]; for(int i=0;i<10;i++){ arrayWidth[i]=tWidth+(i*tWidth); } seekTo(0); super.onWindowFocusChanged(hasFocus); } private void seekTo(float paramFloat) { float f = paramFloat - this.imageviewPreview.getWidth() / 2; if(f<0){ f=0; }if(f>iWidth){ f=iWidth; } lp.leftMargin = ((int) f); for(int i=0;i<arrayWidth.length;i++){ if(arrayWidth[i]>=f){ imageviewPreview.setImageBitmap(bitmaps.get(i)); ivw_to2.setImageBitmap(bitmaps.get(i)); break; } } this.imageviewPreview.setLayoutParams(this.lp); } private class CoverGestureListener extends GestureDetector.SimpleOnGestureListener { public boolean onDown(MotionEvent e) { seekTo(e.getX()); return true; } public boolean onScroll(MotionEvent e1, MotionEvent e2,float distanceX, float distanceY) { float f = e2.getX(); seekTo(f); return super.onScroll(e1, e2, distanceX, distanceY); } } public void getVideoThumbnail(Uri uri) { Bitmap bitmap=null; MediaMetadataRetriever retriever = new MediaMetadataRetriever(); try { retriever.setDataSource(context, uri); String time = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION); int seconds=Integer.valueOf(time)/1000; int timeS=Integer.valueOf(time)/10; for(int i=1;i<=10;i++){ bitmap=retriever.getFrameAtTime(i*timeS*1000,MediaMetadataRetriever.OPTION_CLOSEST); bitmaps.add(bitmap); addImgView(bitmap); } } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } finally { try { retriever.release(); } catch (RuntimeException e) { e.printStackTrace(); } } } public void addImgView(Bitmap bitmap){ SquareImageView imageView=new SquareImageView(context); LinearLayout.LayoutParams lp=new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); lp.weight=1; imageView.setLayoutParams(lp); imageView.setImageBitmap(bitmap); linearLayout.addView(imageView); }}因为是demo所以代码写的比较乱,将就着看吧.哈哈.
demo链接:bin目录下有apk 可直接拖到模拟器里面看效果.
链接：http://share.weiyun.com/62b725b7fde04130f671b7023c7e1aed （密码：M13t）