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我也有微信朋友圈了Android实现

时间：2021-07-01 10:21:17 帮助过：53人阅读

本文实例分享了一个简单的朋友圈程序，包含了朋友圈的列表实现，视频的录制、预览与上传，图片可选择拍照，供大家参考，具体内容如下

FriendsListActivity  代码如下

  1. public class FriendsListActivity extends BaseActivity implements OnRefreshListener<ListView>, PostListener { 
  2.   private InteractionAdapter mAdapter; 
  3.   private PullToRefreshListView mRefreshListView; 
  4.   private View mFooter; 
  5.   private Context mContext; 
  6.   private Button btnToPost; 
  7.   protected int mPage = 0; 
  8.   private boolean isRefreshing = false; 
  9.   @Override 
  10.   protected void onCreate(Bundle savedInstanceState) { 
  11.     // TODO Auto-generated method stub 
  12.     super.onCreate(savedInstanceState); 
  13.     setContentView(R.layout.friends_list); 
  14.     mContext=getApplicationContext(); 
  15.     mAdapter = new InteractionAdapter(mContext); 
  16.     mAdapter.setListener(this); 
  17.     btnToPost=(Button) findViewById(R.id.btn_topost); 
  18.     mRefreshListView = (PullToRefreshListView) findViewById(R.id.friends_list); 
  19.     FriendsApi.getFriendsList(mContext, mCallBack); 
  20.     mRefreshListView.setOnRefreshListener(this); 
  21.     mFooter = LayoutInflater.from(mContext).inflate(R.layout.loading_footer, null); 
  22. //   mRefreshListView.getRefreshableView().addFooterView(mFooter); 
  23.     mRefreshListView.setAdapter(mAdapter); 
  24. //   mRefreshListView.setOnLastItemVisibleListener(mLastListener); 
  25. //   mRefreshListView.getRefreshableView().setDividerHeight(40); 
  26.     btnToPost.setOnClickListener(new OnClickListener() { 
  27.        
  28.       @Override 
  29.       public void onClick(View v) { 
  30.         myPosts(); 
  31.       } 
  32.     }); 
  33.   } 
  34.    
  35.   protected void myPosts() { 
  36.     new AlertDialog.Builder(this).setItems(new String[]{"图片","视频","文字"}, new DialogInterface.OnClickListener() { 
  37.        
  38.       @Override 
  39.       public void onClick(DialogInterface dialog, int which) { 
  40.         Intent intent=new Intent(); 
  41.         switch (which) { 
  42.         case 0: 
  43.           intent.setClass(FriendsListActivity.this, CreatePostActivity.class); 
  44.           break; 
  45.         case 1: 
  46.           intent.setClass(FriendsListActivity.this, RecorderActivity.class); 
  47.           break; 
  48.         case 2: 
  49.           intent.setClass(FriendsListActivity.this, RecorderActivity.class); 
  50.           break; 
  51.         default: 
  52.           break; 
  53.         } 
  54.         startActivity(intent); 
  55.       } 
  56.     }).show(); 
  57.      
  58.   } 
  59.   /** 
  60.    * 查看更多操作 
  61.    */ 
  62.   @Override 
  63.   public void show(Interaction interaction) { 
  64.      
  65.   } 
  66.    
  67.   @Override 
  68.   public void delete(Interaction interaction) { 
  69.     // TODO Auto-generated method stub 
  70.      
  71.   } 
  72.  
  73.   @Override 
  74.   public void onRefresh(PullToRefreshBase<ListView> refreshView) { 
  75.     if (!isRefreshing) {  
  76.       isRefreshing = true;  
  77.       mPage = 0; 
  78.       FriendsApi.getFriendsList(mContext, mCallBack); 
  79.     }  
  80.   } 
  81.  
  82.   protected NetCallBack mCallBack = new NetCallBack() { 
  83.      
  84.     public void friendslist(ArrayList<Interaction> friends) { 
  85.       Log.i("friends size>>>>",friends.size()+"-------------"); 
  86.       mAdapter.setInteractions(friends); 
  87. //     mRefreshListView.getLoadingLayoutProxy().setLastUpdatedLabel(null); 
  88.       mRefreshListView.onRefreshComplete(); 
  89.       isRefreshing = false; 
  90.       dismissLoading(); 
  91.     }; 
  92.      
  93.     public void start() { 
  94.       showLoading(); 
  95.     }; 
  96.      
  97.     public void failed(String message) { 
  98.       loadFailed(); 
  99.     }; 
  100.   }; 
  101.   @Override 
  102.   public void play(Interaction interaction) { 
  103.     Intent mIntent=new Intent(); 
  104.     mIntent.setClass(FriendsListActivity.this, RecorderPlayActivity.class); 
  105.     Bundle data = new Bundle(); 
  106.     data.putString("path", interaction.videoPath); 
  107.     mIntent.putExtras(data); 
  108.     startActivity(mIntent); 
  109.   } 
  110. }

布局文件 friends_list.xml

  1. <?xml version="1.0" encoding="utf-8"?> 
  2. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
  3.   android:layout_width="match_parent" 
  4.   android:layout_height="match_parent" 
  5.   android:background="@color/backgroud_color" > 
  6.   <include 
  7.     android:id="@+id/list_title" 
  8.     android:layout_alignParentTop="true" 
  9.     layout="@layout/list_title"/> 
  10.    
  11.   <com.yzl.xyb.friends.refresh.view.PullToRefreshListView 
  12.     xmlns:app="http://schemas.android.com/apk/res-auto" 
  13.     android:id="@+id/friends_list" 
  14.     android:layout_width="match_parent" 
  15.     android:layout_height="match_parent"  
  16.     android:layout_margin="@dimen/padding_left" 
  17.     android:divider="@android:color/transparent" 
  18.     android:layout_below="@+id/list_title" 
  19.     app:ptrOverScroll="false" 
  20.     app:ptrHeaderTextColor="#ff666666" 
  21.     app:ptrHeaderTextAppearance="@android:style/TextAppearance.Small" 
  22.     app:ptrShowIndicator="false"/> 
  23.    <include layout="@layout/loading"/> 
  24. </RelativeLayout>

适配器 InteractionAdapter 对朋友圈列表进行数据填充

  1. public class InteractionAdapter extends BaseAdapter implements OnClickListener { 
  2.   private ArrayList<Interaction> interactions; 
  3.   private Context mContext; 
  4.   private FinalBitmap mFinal; 
  5.   private BitmapDisplayConfig config; 
  6.   private BitmapDisplayConfig imageConfig; 
  7.   private PostListener listener; 
  8.   public InteractionAdapter(Context context) { 
  9.     mContext = context; 
  10.     mFinal = FinalBitmap.create(mContext); 
  11.     Bitmap bitmap = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.user_avatar); 
  12.     config = new BitmapDisplayConfig(); 
  13.     config.setAnimationType(BitmapDisplayConfig.AnimationType.fadeIn); 
  14.     config.setLoadfailBitmap(bitmap); 
  15.     config.setLoadfailBitmap(bitmap); 
  16.      
  17.     bitmap = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.image_failed); 
  18.     imageConfig = new BitmapDisplayConfig(); 
  19.     imageConfig.setAnimationType(BitmapDisplayConfig.AnimationType.fadeIn); 
  20.     imageConfig.setLoadfailBitmap(bitmap); 
  21.     imageConfig.setLoadfailBitmap(bitmap); 
  22.   } 
  23.    
  24.   public void setListener(PostListener listener) { 
  25.     this.listener = listener; 
  26.   } 
  27.  
  28.   public void setInteractions(ArrayList<Interaction> interactions) { 
  29.     this.interactions = interactions; 
  30.     notifyDataSetChanged(); 
  31.   } 
  32.  
  33.  
  34.   @Override 
  35.   public int getCount() { 
  36.     // TODO Auto-generated method stub 
  37.     return interactions == null ? 0 : interactions.size(); 
  38.   } 
  39.  
  40.   @Override 
  41.   public Object getItem(int position) { 
  42.     // TODO Auto-generated method stub 
  43.     return interactions.get(position); 
  44.   } 
  45.  
  46.   @Override 
  47.   public long getItemId(int position) { 
  48.     // TODO Auto-generated method stub 
  49.     return position; 
  50.   } 
  51.  
  52.   @Override 
  53.   public View getView(int position, View convertView, ViewGroup parent) { 
  54.     // TODO Auto-generated method stub 
  55.     ViewHolder holder = null; 
  56.     if (convertView == null) { 
  57.       convertView = LayoutInflater.from(mContext).inflate(R.layout.friend_list_item, null); 
  58.       holder = new ViewHolder(); 
  59.       holder.avatar = (CircleImageView) convertView.findViewById(R.id.avatar); 
  60.       holder.content = (TextView) convertView.findViewById(R.id.content); 
  61.       holder.title = (TextView) convertView.findViewById(R.id.title); 
  62.       holder.subtitle = (TextView) convertView.findViewById(R.id.subtitle); 
  63.       holder.image = convertView.findViewById(R.id.image_layout); 
  64.       holder.image0 = (ImageView) convertView.findViewById(R.id.image0); 
  65.       holder.image1 = (ImageView) convertView.findViewById(R.id.image1); 
  66.       holder.image2 = (ImageView) convertView.findViewById(R.id.image2); 
  67.       holder.conments = (TextView) convertView.findViewById(R.id.conment_count); 
  68.       holder.praises = (TextView) convertView.findViewById(R.id.parise_count); 
  69.       holder.praised = (ImageView) convertView.findViewById(R.id.praise_icon); 
  70.       holder.more = (TextView) convertView.findViewById(R.id.more); 
  71.       holder.viewLayout=(LinearLayout) convertView.findViewById(R.id.view_layout); 
  72.       holder.surfaceView=(SurfaceView) convertView.findViewById(R.id.surface_view_result); 
  73.       holder.playButton=(ImageButton) convertView.findViewById(R.id.btn_play_result); 
  74.       holder.audioLayout=(FrameLayout) convertView.findViewById(R.id.audio_layout); 
  75.       convertView.setTag(holder); 
  76.     } else { 
  77.       holder = (ViewHolder) convertView.getTag(); 
  78.     } 
  79.      
  80.     Interaction interaction = interactions.get(position); 
  81.     if (TextUtils.isEmpty(interaction.avatar)) { 
  82.       holder.avatar.setImageBitmap(config.getLoadfailBitmap()); 
  83.     } else { 
  84.       mFinal.display(holder.avatar, interaction.avatar, config); 
  85.     } 
  86.     holder.title.setText(interaction.name); 
  87.     holder.subtitle.setText(interaction.subtitle); 
  88.     holder.content.setText(interaction.content); 
  89.      
  90.     holder.conments.setText(String.valueOf(interaction.commentCount)); 
  91.     holder.praises.setText(String.valueOf(interaction.praiseCount)); 
  92.      
  93.     int images = interaction.images == null ? 0 : interaction.images.size(); 
  94.      
  95.     if (images > 0) { 
  96.       holder.image.setVisibility(View.VISIBLE); 
  97.       holder.audioLayout.setVisibility(View.GONE); 
  98.       holder.image.setOnClickListener(this); 
  99.       holder.image.setTag(interaction); 
  100.       if (images <= 1) { 
  101.         mFinal.display(holder.image0, interaction.images.get(0), imageConfig); 
  102.         holder.image1.setImageBitmap(null); 
  103.         holder.image2.setImageBitmap(null); 
  104.       } else if (images <= 2) { 
  105.         mFinal.display(holder.image0, interaction.images.get(0), imageConfig); 
  106.         mFinal.display(holder.image1, interaction.images.get(1), imageConfig); 
  107.         holder.image2.setImageBitmap(null); 
  108.       } else { 
  109.         mFinal.display(holder.image0, interaction.images.get(0), imageConfig); 
  110.         mFinal.display(holder.image1, interaction.images.get(1), imageConfig); 
  111.         mFinal.display(holder.image2, interaction.images.get(2), imageConfig); 
  112.          
  113.       } 
  114.     } else if(interaction.videoPath!=null) 
  115.     { 
  116.         holder.image.setVisibility(View.GONE); 
  117.         holder.playButton.setBackgroundResource(R.drawable.play1pressed); 
  118.         holder.audioLayout.setVisibility(View.VISIBLE); 
  119.         holder.playButton.setTag(interaction); 
  120.         holder.playButton.setOnClickListener(this); 
  121.         holder.surfaceView.setTag(interaction); 
  122.         holder.surfaceView.setOnClickListener(this); 
  123.     }else{ 
  124.       holder.viewLayout.setVisibility(View.GONE); 
  125.     } 
  126.        
  127.     holder.more.setTag(interaction); 
  128.     holder.more.setOnClickListener(this); 
  129.      
  130.     return convertView; 
  131.   } 
  132.    
  133.   private class ViewHolder { 
  134.     CircleImageView avatar; 
  135.     TextView title; 
  136.     TextView subtitle; 
  137.     TextView content; 
  138.     View image; 
  139.     ImageView image0; 
  140.     ImageView image1; 
  141.     ImageView image2; 
  142.     TextView conments; 
  143.     TextView praises; 
  144.     ImageView praised; 
  145.     View delete; 
  146.     TextView more; 
  147.     SurfaceView surfaceView; 
  148.     ImageButton playButton; 
  149.     FrameLayout audioLayout; 
  150.     LinearLayout viewLayout; 
  151.   } 
  152.  
  153.   @Override 
  154.   public void onClick(View v) { 
  155.     int id = v.getId(); 
  156.     if (id == R.id.btn_play_result) { 
  157.       Interaction interaction = (Interaction) v.getTag(); 
  158.     }else if (id == R.id.surface_view_result) { 
  159.       if (this.listener != null) { 
  160.         this.listener.play((Interaction) v.getTag()); 
  161.       } 
  162.     }else if (id == R.id.more) { 
  163.       if (this.listener != null) { 
  164.         this.listener.show((Interaction) v.getTag()); 
  165.       } 
  166.     } else if (id == R.id.image_layout) { 
  167.       Intent intent = new Intent(mContext, MainActivity.class); 
  168.       Bundle data = new Bundle(); 
  169.       Interaction interaction = (Interaction) v.getTag(); 
  170.       data.putStringArrayList("images", interaction.images); 
  171.       intent.putExtras(data); 
  172.       mContext.startActivity(intent); 
  173.     } 
  174.   } 
  175.    
  176.   public interface PostListener { 
  177.     void show(Interaction interaction); 
  178.     void delete(Interaction interaction); 
  179.     void play(Interaction interaction); 
  180.   }

          

多图片选择实现代码

MultipleActivity

  1. package com.yzl.xyb.friends; 
  2.  
  3. import java.io.File; 
  4. import java.io.FilenameFilter; 
  5. import java.util.ArrayList; 
  6. import java.util.Arrays; 
  7. import java.util.HashSet; 
  8. import java.util.List; 
  9.  
  10. import android.app.Activity; 
  11. import android.app.ProgressDialog; 
  12. import android.content.ContentResolver; 
  13. import android.content.Intent; 
  14. import android.database.Cursor; 
  15. import android.net.Uri; 
  16. import android.os.Bundle; 
  17. import android.os.Environment; 
  18. import android.os.Handler; 
  19. import android.provider.MediaStore; 
  20. import android.util.DisplayMetrics; 
  21. import android.util.Log; 
  22. import android.view.LayoutInflater; 
  23. import android.view.View; 
  24. import android.view.View.OnClickListener; 
  25. import android.view.ViewGroup.LayoutParams; 
  26. import android.view.WindowManager; 
  27. import android.widget.GridView; 
  28. import android.widget.PopupWindow.OnDismissListener; 
  29. import android.widget.RelativeLayout; 
  30. import android.widget.TextView; 
  31. import android.widget.Toast; 
  32.  
  33. import com.yzl.xyb.friends.adapter.MyAdapter; 
  34. import com.yzl.xyb.friends.adapter.MyAdapter.SetCountListener; 
  35. import com.yzl.xyb.friends.picture.ListImageDirPopupWindow; 
  36. import com.yzl.xyb.friends.picture.ListImageDirPopupWindow.OnImageDirSelected; 
  37. import com.yzl.xyb.friends.util.ImageFloder; 
  38. /** 
  39.  * 从相册选取图片 
  40.  * 可以选择多张，最多可选9张 
  41.  * 获取所有相册 
  42.  * 确定：返回已选图片的路径 
  43.  * @author hou 
  44.  * 
  45.  */ 
  46. public class MultipleActivity extends Activity implements OnImageDirSelected, SetCountListener{ 
  47.   private TextView selectCount; 
  48.   private TextView selectPicture; 
  49.   private TextView mChooseDir; 
  50.   private ProgressDialog mProgressDialog; 
  51.   public static final int KITKAT_LESS = 2; 
  52.   /** 
  53.    * 存储文件夹中的图片数量 
  54.    */ 
  55.   private int mPicsSize; 
  56.   /** 
  57.    * 图片数量最多的文件夹 
  58.    */ 
  59.   private File mImgDir; 
  60.   /** 
  61.    * 所有的图片 
  62.    */ 
  63.   private List<String> mImgs; 
  64.   private ArrayList<String> pictures; 
  65.  
  66.   private GridView mGirdView; 
  67.   private MyAdapter mAdapter; 
  68.   /** 
  69.    * 临时的辅助类，用于防止同一个文件夹的多次扫描 
  70.    */ 
  71.   private HashSet<String> mDirPaths = new HashSet<String>(); 
  72.  
  73.   /** 
  74.    * 扫描拿到所有的图片文件夹 
  75.    */ 
  76.   private List<ImageFloder> mImageFloders = new ArrayList<ImageFloder>(); 
  77.  
  78.   private RelativeLayout mBottomLy; 
  79.  
  80.   int totalCount = 0; 
  81.  
  82.   private int mScreenHeight; 
  83.  
  84.   private ListImageDirPopupWindow mListImageDirPopupWindow; 
  85.  
  86.   private Handler mHandler = new Handler() 
  87.   { 
  88.     public void handleMessage(android.os.Message msg) 
  89.     { 
  90.       mProgressDialog.dismiss(); 
  91.       // 为View绑定数据 
  92.       data2View(); 
  93.       // 初始化展示文件夹的popupWindw 
  94.       initListDirPopupWindw(); 
  95.     } 
  96.   }; 
  97.    
  98.  
  99.   @Override 
  100.   protected void onCreate(Bundle savedInstanceState) 
  101.   { 
  102.     super.onCreate(savedInstanceState); 
  103.     setContentView(R.layout.picture_selector); 
  104.     getIntent().getExtras(); 
  105.     DisplayMetrics outMetrics = new DisplayMetrics(); 
  106.     getWindowManager().getDefaultDisplay().getMetrics(outMetrics); 
  107.     mScreenHeight = outMetrics.heightPixels; 
  108.  
  109.     initView(); 
  110.     getImages(); 
  111.     initEvent(); 
  112.  
  113.   } 
  114.  
  115.   /** 
  116.    * 初始化View 
  117.    */ 
  118.   private void initView() 
  119.   { 
  120.     mGirdView = (GridView) findViewById(R.id.id_gridView); 
  121.     mChooseDir = (TextView) findViewById(R.id.id_choose_dir); 
  122.     selectCount = (TextView) findViewById(R.id.tv_select_count); 
  123. //   allPhotoAlum = (TextView) findViewById(R.id.tv_photoAlum); 
  124.     selectPicture= (TextView) findViewById(R.id.tv_sure); 
  125.     mBottomLy = (RelativeLayout) findViewById(R.id.id_bottom_ly); 
  126.   } 
  127.  
  128.   private void initEvent() 
  129.   { 
  130.     /** 
  131.      * 为底部的布局设置点击事件，弹出popupWindow 
  132.      */ 
  133.     mBottomLy.setOnClickListener(new OnClickListener() 
  134.     { 
  135.       @Override 
  136.       public void onClick(View v) 
  137.       { 
  138.         mListImageDirPopupWindow 
  139.             .setAnimationStyle(R.style.anim_popup_dir); 
  140.         mListImageDirPopupWindow.showAsDropDown(mBottomLy, 0, 0); 
  141.  
  142.         // 设置背景颜色变暗 
  143.         WindowManager.LayoutParams lp = getWindow().getAttributes(); 
  144.         lp.alpha = .3f; 
  145.         getWindow().setAttributes(lp); 
  146.       } 
  147.     }); 
  148.      
  149.     selectPicture.setOnClickListener(new OnClickListener() { 
  150.        
  151.       @Override 
  152.       public void onClick(View v) { 
  153.         pictures=mAdapter.getSelectPath(); 
  154.         Log.i("选中的图片1>>>>>>",pictures.size()+"----------"); 
  155.         Intent intent=new Intent(); 
  156. //       intent.setClass(MultipleActivity.this, CreatePostActivity.class); 
  157.         Bundle bundle=new Bundle(); 
  158.         bundle.putStringArrayList("PICTURES", pictures); 
  159.         intent.putExtras(bundle); 
  160. //       startActivityForResult(intent, KITKAT_LESS); 
  161.         setResult(KITKAT_LESS, intent);  
  162.         finish(); 
  163.       } 
  164.     }); 
  165.   } 
  166.  
  167.   /** 
  168.    * 为View绑定数据 
  169.    */ 
  170.   private void data2View() 
  171.   { 
  172.     if (mImgDir == null) 
  173.     { 
  174.       Toast.makeText(getApplicationContext(), "擦，一张图片没扫描到", 
  175.           Toast.LENGTH_SHORT).show(); 
  176.       return; 
  177.     } 
  178.  
  179.     mImgs = Arrays.asList(mImgDir.list()); 
  180.     /** 
  181.      * 可以看到文件夹的路径和图片的路径分开保存，极大的减少了内存的消耗； 
  182.      */ 
  183.     mAdapter = new MyAdapter(getApplicationContext(), mImgs, 
  184.         R.layout.grid_item, mImgDir.getAbsolutePath()); 
  185.     mAdapter.setCountListener(this); 
  186.     mGirdView.setAdapter(mAdapter); 
  187. //   allPictureCount.setText("共"+totalCount + "张"); 
  188.   }; 
  189.  
  190.   /** 
  191.    * 初始化展示文件夹的popupWindw 
  192.    */ 
  193.   private void initListDirPopupWindw() 
  194.   { 
  195.     mListImageDirPopupWindow = new ListImageDirPopupWindow( 
  196.         LayoutParams.MATCH_PARENT, (int) (mScreenHeight * 1), 
  197.         mImageFloders, LayoutInflater.from(getApplicationContext()) 
  198.             .inflate(R.layout.list_dir, null)); 
  199.  
  200.     mListImageDirPopupWindow.setOnDismissListener(new OnDismissListener() 
  201.     { 
  202.  
  203.       @Override 
  204.       public void onDismiss() 
  205.       { 
  206.         // 设置背景颜色变暗 
  207.         WindowManager.LayoutParams lp = getWindow().getAttributes(); 
  208.         lp.alpha = 1.0f; 
  209.         getWindow().setAttributes(lp); 
  210.       } 
  211.     }); 
  212.     // 设置选择文件夹的回调 
  213.     mListImageDirPopupWindow.setOnImageDirSelected(this); 
  214.   } 
  215.  
  216.   /** 
  217.    * 利用ContentProvider扫描手机中的图片，此方法在运行在子线程中 完成图片的扫描，最终获得jpg最多的那个文件夹 
  218.    */ 
  219.   private void getImages() 
  220.   { 
  221.     if (!Environment.getExternalStorageState().equals( 
  222.         Environment.MEDIA_MOUNTED)) 
  223.     { 
  224.       Toast.makeText(this, "暂无外部存储", Toast.LENGTH_SHORT).show(); 
  225.       return; 
  226.     } 
  227.     // 显示进度条 
  228.     mProgressDialog = ProgressDialog.show(this, null, "正在加载..."); 
  229.  
  230.     new Thread(new Runnable() 
  231.     { 
  232.       @Override 
  233.       public void run() 
  234.       { 
  235.  
  236.         String firstImage = null; 
  237.  
  238.         Uri mImageUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; 
  239.         ContentResolver mContentResolver = MultipleActivity.this 
  240.             .getContentResolver(); 
  241.  
  242.         // 只查询jpeg和png的图片 
  243.         Cursor mCursor = mContentResolver.query(mImageUri, null, 
  244.             MediaStore.Images.Media.MIME_TYPE + "=? or " 
  245.                 + MediaStore.Images.Media.MIME_TYPE + "=?", 
  246.             new String[] { "image/jpeg", "image/png" }, 
  247.             MediaStore.Images.Media.DATE_MODIFIED); 
  248.  
  249.         Log.e("TAG", mCursor.getCount() + ""); 
  250.         while (mCursor.moveToNext()) 
  251.         { 
  252.           // 获取图片的路径 
  253.           String path = mCursor.getString(mCursor 
  254.               .getColumnIndex(MediaStore.Images.Media.DATA)); 
  255.  
  256.           Log.e("TAG", path); 
  257.           // 拿到第一张图片的路径 
  258.           if (firstImage == null) 
  259.             firstImage = path; 
  260.           // 获取该图片的父路径名 
  261.           File parentFile = new File(path).getParentFile(); 
  262.           if (parentFile == null) 
  263.             continue; 
  264.           String dirPath = parentFile.getAbsolutePath(); 
  265.           ImageFloder imageFloder = null; 
  266.           // 利用一个HashSet防止多次扫描同一个文件夹（不加这个判断，图片多起来还是相当恐怖的~~） 
  267.           if (mDirPaths.contains(dirPath)) 
  268.           { 
  269.             continue; 
  270.           } else 
  271.           { 
  272.             mDirPaths.add(dirPath); 
  273.             // 初始化imageFloder 
  274.             imageFloder = new ImageFloder(); 
  275.             imageFloder.setDir(dirPath); 
  276.             imageFloder.setFirstImagePath(path); 
  277.           } 
  278.  
  279.           int picSize = parentFile.list(new FilenameFilter() 
  280.           { 
  281.             @Override 
  282.             public boolean accept(File dir, String filename) 
  283.             { 
  284.               if (filename.endsWith(".jpg") 
  285.                   || filename.endsWith(".png") 
  286.                   || filename.endsWith(".jpeg")) 
  287.                 return true; 
  288.               return false; 
  289.             } 
  290.           }).length; 
  291.           totalCount += picSize; 
  292.  
  293.           imageFloder.setCount(picSize); 
  294.           mImageFloders.add(imageFloder); 
  295.  
  296.           if (picSize > mPicsSize) 
  297.           { 
  298.             mPicsSize = picSize; 
  299.             mImgDir = parentFile; 
  300.           } 
  301.         } 
  302.         mCursor.close(); 
  303.  
  304.         // 扫描完成，辅助的HashSet也就可以释放内存了 
  305.         mDirPaths = null; 
  306.  
  307.         // 通知Handler扫描图片完成 
  308.         mHandler.sendEmptyMessage(0x110); 
  309.  
  310.       } 
  311.     }).start(); 
  312.  
  313.   } 
  314.  
  315.    
  316.  
  317.   @Override 
  318.   public void selected(ImageFloder floder) 
  319.   { 
  320.  
  321.     mImgDir = new File(floder.getDir()); 
  322.     mImgs = Arrays.asList(mImgDir.list(new FilenameFilter() 
  323.     { 
  324.       @Override 
  325.       public boolean accept(File dir, String filename) 
  326.       { 
  327.         if (filename.endsWith(".jpg") || filename.endsWith(".png") 
  328.             || filename.endsWith(".jpeg")) 
  329.           return true; 
  330.         return false; 
  331.       } 
  332.     })); 
  333.     /** 
  334.      * 可以看到文件夹的路径和图片的路径分开保存，极大的减少了内存的消耗； 
  335.      */ 
  336.     mAdapter = new MyAdapter(getApplicationContext(), mImgs, 
  337.         R.layout.grid_item, mImgDir.getAbsolutePath()); 
  338.     mAdapter.setCountListener(this); 
  339.     mGirdView.setAdapter(mAdapter); 
  340. //    mAdapter.notifyDataSetChanged(); 
  341. //   mImageCount.setText(floder.getCount() + "张"); 
  342.     mChooseDir.setText(floder.getName()); 
  343.     selectCount.setText("/9"); 
  344.     mListImageDirPopupWindow.dismiss(); 
  345.  
  346.   } 
  347.  
  348.   @Override 
  349.   public void doCount(int a) { 
  350.     selectCount.setText(a+"/9"); 
  351.   } 
  352.    
  353.  
  354. }

                  

视频的录制与预览

  1. package com.yzl.xyb.friends; 
  2.  
  3.  
  4. import android.annotation.SuppressLint; 
  5. import android.app.Activity; 
  6. import android.content.Intent; 
  7. import android.os.Bundle; 
  8. import android.os.Handler; 
  9. import android.os.Message; 
  10. import android.util.Log; 
  11. import android.view.MotionEvent; 
  12. import android.view.View; 
  13. import android.view.View.OnTouchListener; 
  14. import android.widget.Button; 
  15. import android.widget.Toast; 
  16.  
  17. import com.yzl.xyb.friends.view.MovieRecorderView; 
  18. import com.yzl.xyb.friends.view.MovieRecorderView.OnRecordFinishListener; 
  19. /** 
  20.  * 录制视频 
  21.  * @author hou 
  22.  * 
  23.  */ 
  24. public class RecorderActivity extends Activity { 
  25.  
  26.   private MovieRecorderView mRecorderView; 
  27.   private Button mShootBtn; 
  28.   private boolean isFinish = true; 
  29.   private String userId = ""; 
  30.   @Override 
  31.   protected void onCreate(Bundle savedInstanceState) { 
  32.     // TODO Auto-generated method stub 
  33.     super.onCreate(savedInstanceState); 
  34.     setContentView(R.layout.record_activity); 
  35. //   userId=getIntent().getParcelableExtra("userId"); 
  36.     mRecorderView = (MovieRecorderView) findViewById(R.id.movieRecorderView); 
  37.     mShootBtn = (Button) findViewById(R.id.shoot_button); 
  38.  
  39.     mShootBtn.setOnTouchListener(new OnTouchListener() { 
  40.  
  41.       @Override  
  42.       public boolean onTouch(View v, MotionEvent event) { 
  43.         if (event.getAction() == MotionEvent.ACTION_DOWN) { 
  44.           mRecorderView.record(new OnRecordFinishListener() { 
  45.  
  46.             @Override 
  47.             public void onRecordFinish() { 
  48.               Log.i("MotionEvent>>>","ACTION_DOWN"); 
  49.               handler.sendEmptyMessage(1); 
  50.             } 
  51.           }); 
  52.         } else if (event.getAction() == MotionEvent.ACTION_UP) { 
  53.           Log.i("MotionEvent>>>","ACTION_UP"); 
  54.           if (mRecorderView.getTimeCount() > 1) 
  55.             handler.sendEmptyMessage(1); 
  56.           else { 
  57.             if (mRecorderView.getmVecordFile() != null) 
  58.               mRecorderView.getmVecordFile().delete(); 
  59.             mRecorderView.stop(); 
  60.             Toast.makeText(RecorderActivity.this, "时间太短，录制失败", Toast.LENGTH_SHORT).show(); 
  61.           } 
  62.         } 
  63.         return true;  
  64.       } 
  65.     }); 
  66.   } 
  67.  
  68.  
  69.   @Override 
  70.   public void onResume() { 
  71.     super.onResume(); 
  72.     isFinish = true; 
  73.   } 
  74.  
  75.   @Override 
  76.   public void onSaveInstanceState(Bundle outState) { 
  77.     super.onSaveInstanceState(outState); 
  78.     isFinish = false; 
  79.     mRecorderView.stop(); 
  80.   } 
  81.  
  82.   @Override 
  83.   public void onPause() { 
  84.     super.onPause(); 
  85.   } 
  86.  
  87.   @Override 
  88.   public void onDestroy() { 
  89.     super.onDestroy(); 
  90.   } 
  91.  
  92.   @SuppressLint("HandlerLeak") 
  93.   private Handler handler = new Handler() { 
  94.     @Override 
  95.     public void handleMessage(Message msg) { 
  96.       finishActivity(); 
  97.       Log.i("isFinish>>>",isFinish+""); 
  98.     } 
  99.   }; 
  100.  
  101.   private void finishActivity() { 
  102.     if (isFinish) { 
  103.       mRecorderView.stop(); 
  104.        
  105.       Intent intent = new Intent(RecorderActivity.this, TopicActivity.class); 
  106.       Bundle mBundle = new Bundle();   
  107.       mBundle.putString("path", mRecorderView.getmVecordFile().toString());   
  108.       mBundle.putString("userId", userId); 
  109.       intent.putExtras(mBundle);   
  110.       startActivity(intent);  
  111.     }  
  112.   }  
  113.  
  114.   public interface OnShootCompletionListener { 
  115.     public void OnShootSuccess(String path, int second); 
  116.     public void OnShootFailure(); 
  117.   } 
  118. }

视频的预览

  1. package com.yzl.xyb.friends; 
  2.  
  3. import android.app.Activity; 
  4. import android.media.AudioManager; 
  5. import android.media.MediaPlayer; 
  6. import android.os.Bundle; 
  7. import android.view.SurfaceHolder; 
  8. import android.view.SurfaceView; 
  9. import android.view.View; 
  10. import android.view.View.OnClickListener; 
  11. import android.widget.ImageButton; 
  12. import android.widget.ImageView; 
  13.  
  14. public class RecorderPlayActivity extends Activity implements SurfaceHolder.Callback, OnClickListener { 
  15.  
  16.   private ImageView ivBack; 
  17.   private ImageButton btnPlay; 
  18.   private SurfaceView surfaceView; 
  19.   private SurfaceHolder surfaceHolder; 
  20.   private String path=null; 
  21.   private MediaPlayer player; 
  22.   private boolean play=false; 
  23.    
  24.   @SuppressWarnings("deprecation") 
  25.   @Override 
  26.   protected void onCreate(Bundle savedInstanceState) { 
  27.     // TODO Auto-generated method stub 
  28.     super.onCreate(savedInstanceState); 
  29.     setContentView(R.layout.recorder_play); 
  30.     ivBack=(ImageView) findViewById(R.id.iv_back); 
  31.     btnPlay=(ImageButton) findViewById(R.id.ib_play); 
  32.     surfaceView=(SurfaceView) findViewById(R.id.play_view); 
  33.     btnPlay.setBackground(getResources().getDrawable(R.drawable.play1pressed)); 
  34.     path=this.getIntent().getStringExtra("path"); 
  35.     System.out.println("surface created>>>> path= "+path); 
  36.     surfaceHolder=surfaceView.getHolder(); 
  37.     surfaceHolder.addCallback(this); 
  38.     surfaceHolder.setFixedSize(320, 220); 
  39.     surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 
  40.     System.out.println("oncreate--------------"); 
  41.     ivBack.setOnClickListener(this); 
  42.     btnPlay.setOnClickListener(this); 
  43.     surfaceView.setOnClickListener(this); 
  44.   } 
  45.  
  46.    
  47.   @Override 
  48.   public void surfaceCreated(SurfaceHolder holder) { 
  49.     player=new MediaPlayer(); 
  50.     player.setAudioStreamType(AudioManager.STREAM_MUSIC); 
  51.     player.setDisplay(surfaceHolder); 
  52.     try { 
  53.       System.out.println("surface created>>>> path= "+path); 
  54.       player.setDataSource(path); 
  55.       player.prepare(); 
  56.     } catch (Exception e) { 
  57.       e.printStackTrace(); 
  58.     } 
  59.   } 
  60.  
  61.  
  62.   @Override 
  63.   public void surfaceChanged(SurfaceHolder holder, int format, int width, 
  64.       int height) { 
  65.     // TODO Auto-generated method stub 
  66.      
  67.   } 
  68.  
  69.  
  70.   @Override 
  71.   public void surfaceDestroyed(SurfaceHolder holder) { 
  72.     // TODO Auto-generated method stub 
  73.      
  74.   } 
  75.  
  76.  
  77.   @Override 
  78.   public void onClick(View v) { 
  79.     switch (v.getId()) { 
  80.     case R.id.iv_back: 
  81.       this.finish(); 
  82.       break; 
  83.     case R.id.ib_play: 
  84.       player.start(); 
  85.       btnPlay.setVisibility(View.GONE); 
  86.       break; 
  87.     case R.id.play_view: 
  88.       player.pause(); 
  89.       /*if(play){ 
  90.         player.start(); 
  91.       }else { 
  92.         player.pause(); 
  93.       }*/ 
  94.       btnPlay.setVisibility(View.VISIBLE); 
  95.       break; 
  96.  
  97.     default: 
  98.       break; 
  99.     } 
  100.   } 
  101.    
  102.   @Override 
  103.   protected void onDestroy() { 
  104.     // TODO Auto-generated method stub 
  105.     super.onDestroy(); 
  106.     if(player.isPlaying()) 
  107.     { 
  108.       player.stop(); 
  109.     } 
  110.     player.release(); 
  111.   } 
  112. }

拥有一个属于自己的朋友圈是不是很开新，可以和好朋友随时随地分享，是不是很开心！

以上就是本文的全部内容，希望对大家学习Android软件编程有所帮助。

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