我如何让人们在我的应用中使用他们使用的图片？

我做了一个应用程序，看起来有点像蛇。有一个大的红色块，每次你触摸屏幕某处的大块红色块的白色小块时，会弹出另一个小块。重复约30秒。但现在我想知道如何让人们以自己的头像为例，并将其用作红色块。所以你的脸需要吃白块。我搜索了一下，我看到Smosh Super Head Esploder X具有我想要的相同功能。请帮帮我！我如何让人们在我的应用中使用他们使用的图片？

来源

2014-03-25 user3458695

何Ÿ无论你在这里得到什么答案。请记住，您必须指定权限才能使用相机。 –

利用这一点，它会帮助你从相机拍照，也从画廊..

/*captureImageInitialization Method 
* to select image from gallery or pick through camera 
*/ 
private void captureImageInitialization() { 
    /** 
    * a selector dialog to display two image source options, from camera 
    * ‘Take from camera’ and from existing files ‘Select from gallery’ 
    */ 
    final String[] items = new String[] { "Take from camera","Select from gallery" }; 
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),android.R.layout.select_dialog_item, items); 
    AlertDialog.Builder builder = new AlertDialog.Builder(getBaseContext()); 

    builder.setTitle("Select Image"); 
    builder.setAdapter(adapter, new DialogInterface.OnClickListener() { 
     /* 
     * (non-Javadoc) 
     * @see android.content.DialogInterface.OnClickListener#onClick(android.content.DialogInterface, int) 
     */ 
     public void onClick(DialogInterface dialog, int item) { // pick from 
                   // camera 
       if (item == 0){ 
       /** 
       * To take a photo from camera, pass intent action 
       * ‘MediaStore.ACTION_IMAGE_CAPTURE‘ to open the camera app. 
       */ 
       Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 

       /** 
       * Also specify the Uri to save the image on specified path 
       * and file name. Note that this Uri variable also used by 
       * gallery app to hold the selected image path. 
       */ 
       mImageCaptureUri = Uri.fromFile(new File(Environment 
         .getExternalStorageDirectory(), "tmp_avatar_" 
         + String.valueOf(System.currentTimeMillis()) 
         + ".jpg")); 
       intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, 
         mImageCaptureUri); 
       try { 
        intent.putExtra("return-data", true); 
        startActivityForResult(intent, PICK_FROM_CAMERA); 
        }catch (ActivityNotFoundException e) { 
        e.printStackTrace(); 
        } 
       } else{ 
       // pick from file 
       /** 
       * To select an image from existing files, use 
       * Intent.createChooser to open image chooser. Android will 
       * automatically display a list of supported applications, 
       * such as image gallery or file manager. 
       */ 
       Intent intent = new Intent(); 
       intent.setType("image/*"); 
       intent.setAction(Intent.ACTION_GET_CONTENT); 
       startActivityForResult(Intent.createChooser(intent, 
         "Complete action using"), PICK_FROM_FILE); 
      } 
     } 
    }); 
    dialog = builder.create(); 
} 
/* 
* (non-Javadoc) 
* @see android.app.Fragment#onActivityResult(int, int, android.content.Intent) 
*/ 
@Override 
public void onActivityResult(int requestCode, int resultCode, Intent data) { 
    if (resultCode != Activity.RESULT_OK) 
     return; 
    switch (requestCode) { 

    case PICK_FROM_CAMERA: 
     /** 
     * After taking a picture, do the crop 
     */ 
     doCrop(); 
     break; 
    case PICK_FROM_FILE: 
     /** 
     * After selecting image from files, save the selected path 
     */ 
     mImageCaptureUri = data.getData(); 
     doCrop(); 
     break; 
    case CROP_FROM_CAMERA: 
     Bundle extras = data.getExtras(); 
     /** 
     * After cropping the image, get the bitmap of the cropped image and 
     * display it on imageview. 
     */ 
     if (extras != null) { 
      Bitmap photo = extras.getParcelable("data"); 
      imageofuser.setImageBitmap(photo); 
      } 
     File f = new File(mImageCaptureUri.getPath()); 
     /** 
     * Delete the temporary image 
     */ 
     if (f.exists()) 
      f.delete(); 
      break; 
     } 
} 
/*doCrop() method 
    * this method crop the selected image and set to imageview 
    */ 
    private void doCrop() { 
     final ArrayList<CropOption> cropOptions = new ArrayList<CropOption>(); 
     /** 
     * Open image crop app by starting an intent 
     * ‘com.android.camera.action.CROP‘. 
     */ 
     Intent intent = new Intent("com.android.camera.action.CROP"); 
     intent.setType("image/*"); 

     /** 
     * Check if there is image cropper app installed. 
     */ 
     List<ResolveInfo> list = getBaseContext().getPackageManager().queryIntentActivities(intent, 0); 
     int size = list.size(); 

     /** 
     * If there is no image cropper app, display warning message 
     */ 
     if (size == 0) { 
      Toast.makeText(getBaseContext(), "Can not find image crop app",Toast.LENGTH_SHORT).show(); 
      return; 
     } else { 
     /** 
     * Specify the image path, crop dimension and scale 
     */ 
     intent.setData(mImageCaptureUri); 
     intent.putExtra("outputX", 200); 
     intent.putExtra("outputY", 200); 
     intent.putExtra("aspectX", 1); 
     intent.putExtra("aspectY", 1); 
     intent.putExtra("scale", true); 
     intent.putExtra("return-data", true); 
     /** 
     * There is posibility when more than one image cropper app exist, 
     * so we have to check for it first. If there is only one app, open 
     * then app. 
     */ 
       if (size==1){ 
       Intent i = new Intent(intent); 
       ResolveInfo res = list.get(0); 
       i.setComponent(new ComponentName(res.activityInfo.packageName, 
        res.activityInfo.name)); 
       startActivityForResult(i, CROP_FROM_CAMERA); 
      } else { 
      /** 
      * If there are several app exist, create a custom chooser to 
      * let user selects the app. 
      */ 
      for(ResolveInfo res : list) { 
       final CropOption co = new CropOption(); 
       co.title = getBaseContext().getPackageManager().getApplicationLabel(
         res.activityInfo.applicationInfo); 
       co.icon =getBaseContext().getPackageManager().getApplicationIcon(
         res.activityInfo.applicationInfo); 
       co.appIntent = new Intent(intent); 
       co.appIntent.setComponent(new ComponentName(
           res.activityInfo.packageName, 
           res.activityInfo.name)); 
       cropOptions.add(co); 
      } 
      CropOptionAdapter adapter = new CropOptionAdapter(getBaseContext().getApplicationContext(), cropOptions); 

      AlertDialog.Builder builder = new AlertDialog.Builder(getBaseContext()); 
      builder.setTitle("Choose Crop App"); 
      builder.setAdapter(adapter, 
        new DialogInterface.OnClickListener() { 
         public void onClick(DialogInterface dialog, int item) { 
          startActivityForResult(
            cropOptions.get(item).appIntent, 
            CROP_FROM_CAMERA); 
         } 
        }); 

      builder.setOnCancelListener(new DialogInterface.OnCancelListener() { 
       @Override 
       public void onCancel(DialogInterface dialog) { 

        if (mImageCaptureUri != null) {getBaseContext().getContentResolver().delete(mImageCaptureUri, null, 
           null); 
         mImageCaptureUri = null; 
        } 
       } 
      }); 
      AlertDialog alert = builder.create(); 
      alert.show(); 
     } 
    } 
}

CropOptionAdapter：

public class CropOptionAdapter extends ArrayAdapter<CropOption> { 
    private ArrayList<CropOption> mOptions; 
    private LayoutInflater mInflater; 

    public CropOptionAdapter(Context context, ArrayList<CropOption> options){ 
     super(context, R.layout.crop_selector); 
     mOptions = options; 
     mInflater = LayoutInflater.from(context); 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup group) { 
     if(convertView==null) 
     convertView = mInflater.inflate(R.layout.crop_selector, null); 
     CropOption item = mOptions.get(position); 
     if(item != null){ 
     ((ImageView) convertView.findViewById(R.id.iv_icon)) 
        .setImageDrawable(item.icon); 
     ((TextView) convertView.findViewById(R.id.tv_name)) 
        .setText(item.title); 
     return convertView; 
     } 
     return null; 
     } 
    } 

    class CropOption { 
    public CharSequence title; 
    public Drawable icon; 
    public Intent appIntent; 
}

cropselector.xml：

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:padding="10dp"> 

    <ImageView 
     android:id="@+id/iv_icon" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"/> 

    <TextView 
     android:id="@+id/tv_name" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text=""/> 
</LinearLayout>

而且提供图像作物选项,,

来源

2014-03-25 08:40:43 Akshay

我如何让人们在我的应用中使用他们使用的图片？

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