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 TextView upload_pic = (TextView) findViewById(R.id.upload_pic);
    
    upload_pic.setOnClickListener(upload_pic_click);
 

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private TextView.OnClickListener upload_pic_click  = new TextView.OnClickListener()
  {
        @Override
        public void onClick(View v)
        {
          // TODO Auto-generated method stub
           
          showDialog(UPLOAD_PIC_DIA);
        }
      };

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 protected Dialog onCreateDialog(int id) {
     switch (id) {
     case UPLOAD_PIC_DIA:
       LI = LayoutInflater.from(app_photo_detail.this);
          v = LI.inflate(R.layout.upload_pic, null);
          Button btn = (Button)v.findViewById(R.id.buttonObj);
          btn.setOnClickListener( UC);
      
      return new AlertDialog.Builder(app_photo_detail.this)
        .setView(v)
        .setPositiveButton(R.string.submit,
        new DialogInterface.OnClickListener() {
          
          @Override
          public void onClick(DialogInterface dialog, int which) {
            // TODO Auto-generated method stub
            
            
          }
        }
        ).create();
      
     }
     return null;
   
   }

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 @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        
        // TODO Auto-generated method stub
        super.onActivityResult(requestCode, resultCode, data);
        
        // 有選擇檔案
        if ( resultCode == RESULT_OK )
        {
          
            // 取得檔案的 Uri
            Uri uri = data.getData();
         
            if( uri != null )
            {
                // 利用 Uri 顯示 ImageView 圖片
              //String path = uri.toString();
               // ImageView iv = (ImageView)this.findViewById(R.id.imageViewObj);
               // iv.setImageURI( uri );
               // path = (new File(URI.create(path))).getAbsolutePath();
              setTitle(uri.toString());  //除錯用的
               
            }
            else
            {
              
                setTitle("無效的檔案路徑 !!");
            }
        }
        else
        {
            setTitle("取消選擇檔案 !!");
        }
    }
 
private OnClickListener UC  = new OnClickListener()
      {
        @Override
          public void onClick(View v)
          {
          // TODO Auto-generated method stub
              
              // 建立 "選擇檔案 Action" 的 Intent
              Intent intent = new Intent( Intent.ACTION_PICK );
              
              // 過濾檔案格式
              intent.setType( "image/*" );
              
              // 建立 "檔案選擇器" 的 Intent  (第二個參數: 選擇器的標題)
              Intent destIntent = Intent.createChooser( intent, "選擇檔案" );
              
              // 切換到檔案選擇器 (它的處理結果, 會觸發 onActivityResult 事件)
              startActivityForResult( destIntent, 0 );
         
          }
          
      };

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content://media/external/1