来源: 互联网  发布时间: 2014-02-18

如何去掉Spinner旁边的按钮
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
public class MySpinner extends Activity {    //data that will be used as a spinner options
    private static String data[] = {"one", "two", "three"};    /** Called when the activity is first created. */  
     @Override   
     public void onCreate(Bundle savedInstanceState)
       {       
          super.onCreate(savedInstanceState);
          //main.xml file contains spinner       
          setContentView(R.layout.main);
          Spinner spinner = (Spinner) findViewById(R.id.spinner);     
          //create your own adapter       
          MySpinnerAdapter adapter = new MySpinnerAdapter(this,R.layout.custom_spinner_row,R.id.text, data );
          //set your custom adapter       
           spinner.setAdapter( adapter ); 
        }  
         private class MySpinnerAdapter extends ArrayAdapter
         {     
           public MySpinnerAdapter(Context context, int resource, int textViewResourceId, String[] objects)
             {  super(context, resource, textViewResourceId, objects);    
              }         
          }
 
R.layout.custom_spinner_row是只含有一个linear并包含一个叫text的文本框
如果你想做的更好看些 ，那你还的重写 getView() method

    

    来源: 互联网  发布时间: 2014-02-18

让背景动前景不动 ViewFlipper的用法
其实呢这个实例没有多大用处，代码也简单只是看看当图片作为背景的时候 能不能也动画出来 结果是可以的
ViewFlipper mFlipper = new ViewFlipper(this);      
        ImageView i = new ImageView(this);     
         i.setBackgroundDrawable(getResources().getDrawable(R.drawable.icon));
         i.setImageResource(R.drawable.android_waving);
         ImageView i2 = new ImageView(this);     
         i2.setBackgroundDrawable(getResources().getDrawable(R.drawable.xb));
         i2.setImageResource(R.drawable.android_waving);
         mFlipper.setInAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_in)); 
         mFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_out));     
         mFlipper.addView(i);      
         mFlipper.addView(i2); 
        
         mFlipper.startFlipping();       
         setContentView(mFlipper);
通常我们不需要把要动画的图片作为背景用 i.setBackgroundDrawable而是用i.setImageResource，这个例子只是为了验证一下背景是不是可以动。

    

    来源: 互联网  发布时间: 2014-02-18

手机拍照加入相关信息说明
Button imagecapture = (Button)findViewById(R.id.imagecapture);      
imagecapture.setOnClickListener(new View.OnClickListener() {      
   public void onClick(View view) {               
     String filename = null;               
     ImageCaptureCallback iccb = null;                       
        try {                       
            filename = timeStampFormat.format(new Date());                       
            ContentValues values = new ContentValues();                       
            values.put(Media.TITLE, filename);                       
            values.put(Media.DESCRIPTION, "Image capture by camera");                       
            Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values);                      
             iccb = new ImageCaptureCallback( getContentResolver().openOutputStream(uri));                       
             } catch(Exception ex ){                       
             ex.printStackTrace();                       
             Log.e(getClass().getSimpleName(), ex.getMessage(), ex);                       
             }               
             camera.takePicture(mShutterCallback, mPictureCallbackRaw, iccb);               
             com.froogloid.android.gspot.Park.imageFileName = filename;       
             }   
             });
            
            
             private OutputStream filoutputStream;
             public ImageCaptureCallback(OutputStream filoutputStream) {       
             this.filoutputStream = filoutputStream;
             }
             @Override 
             public void onPictureTaken(byte[] data, Camera camera) {       
                try {                       
                   Log.v(getClass().getSimpleName(), "onPictureTaken=" + data + " length = " + data.length);                   
                     FileOutputStream buf = new FileOutputStream("/sdcard/dcim/Camera/" + CameraActivity.filename + ".jpg");                       
                     buf.write(data);                       
                     buf.flush();                       
                     buf.close();                
                      // filoutputStream.write(data);                       
                      filoutputStream.flush();                       
                      filoutputStream.close();              
                      } catch(Exception ex) {                       
                      ex.printStackTrace();               
                      }               
                }
        }


主要是这几句的使用
ContentValues values = new ContentValues();                       
            values.put(Media.TITLE, filename);                       
            values.put(Media.DESCRIPTION, "Image capture by camera");                       
            Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values);