package com.luckymonkey.util;
import java.util.ArrayList;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.provider.MediaStore.MediaColumns;
import android.text.TextUtils;
import android.util.DisplayMetrics;
import android.view.WindowManager;
import android.widget.Toast;
import com.luckymonkey.R;
import com.luckymonkey.ui.image.BrowseImageActivity;
public class UiHelper {
public static final int REQUEST_PICK = 9162;
public static final int REQUEST_TAKE = 9163;
public static final int REQUEST_CROP = 9164;
public static DisplayMetrics getDisplayMetrics(Context context) {
DisplayMetrics dm = new DisplayMetrics();
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
wm.getDefaultDisplay().getMetrics(dm);
return dm;
}
/**
* Utility method that starts an image picker since that often precedes a
* crop
*
* @param activity
* Activity that will receive result
*/
public static void pickImage(Activity activity) {
Intent intent = new Intent(Intent.ACTION_PICK).setType("image/*");
intent.setData(android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
try {
activity.startActivityForResult(intent, REQUEST_PICK);
} catch (ActivityNotFoundException e) {
Toast.makeText(activity, R.string.picture_pick_error, Toast.LENGTH_SHORT).show();
}
}
public static void takeImage(Activity activity, Uri photoUri) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
try {
activity.startActivityForResult(intent, REQUEST_TAKE);
} catch (ActivityNotFoundException e) {
Toast.makeText(activity, R.string.picture_pick_error, Toast.LENGTH_SHORT).show();
}
}
public static void cropPickImage(Activity activity, Uri imageUri) {
Intent intent = new Intent();
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
} else {
intent.setAction(Intent.ACTION_GET_CONTENT);
}
intent.setType("image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 256);
intent.putExtra("outputY", 256);
intent.putExtra("scale", true);
intent.putExtra("return-data", false);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true); // no face detection
try {
activity.startActivityForResult(intent, REQUEST_PICK);
} catch (ActivityNotFoundException e) {
Toast.makeText(activity, R.string.picture_pick_error, Toast.LENGTH_SHORT).show();
}
}
public static void cropTakeImage(Activity activity, Uri dataUri, Uri outputUri) {
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(dataUri, "image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 256);
intent.putExtra("outputY", 256);
intent.putExtra("scale", true);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputUri);
intent.putExtra("return-data", false);
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true); // no face detection
try {
activity.startActivityForResult(intent, REQUEST_CROP);
} catch (ActivityNotFoundException e) {
Toast.makeText(activity, R.string.picture_pick_error, Toast.LENGTH_SHORT).show();
}
}
/**
* 根据uri获取图片的真实路�?
*
* @param activity
* 活动对象
* @param uri
* uri
* @return 图片的真实路�? */
public static String getPath(Context context, Uri source, Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
String brand = Build.BRAND;
if (!isKitKat || (!TextUtils.isEmpty(brand) && (brand.equalsIgnoreCase("meizu") || brand.equalsIgnoreCase("xiaomi")))) {
return getOldPath(context, source);
} else {
return getNewPath(context, uri);
}
}
/**
* 根据uri获取图片的真实路�?
*
* @param activity
* 活动对象
* @param uri
* uri
* @return 图片的真实路�? */
public static String getOldPath(Context context, Uri uri) {
String path=uri.getPath();
try{
String[] proj = { MediaColumns.DATA };
// 好像是android多媒体数据库的封装接口，具体的看Android文档
Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null);
// 按我个人理解 这个是获得用户�?择的图片的索引�?
int columnIndex = cursor.getColumnIndexOrThrow(MediaColumns.DATA);
// 将光标移至开�?，这个很重要，不小心很容易引起越�? cursor.moveToFirst();
// �?��根据索引值获取图片路�? path = cursor.getString(columnIndex);
}catch(Exception e){
//Uri是一个文件类型�?不是�?��多媒体类型，也就是说已file结尾而不是content结尾
}
return path;
}
@TargetApi(Build.VERSION_CODES.KITKAT)
public static String getNewPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
// TODO handle non-primary volumes
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[] {
split[1]
};
return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
public static String getDataColumn(Context context, Uri uri, String selection,
String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
public static void toBrowseImage(Context context, String imageUrl) {
if (!TextUtils.isEmpty(imageUrl)) {
ArrayList<String> images = new ArrayList<String>();
images.add(imageUrl);
toBrowseImage(context, images, 0);
}
}
public static void toBrowseImage(Context context, ArrayList<String> images, int position) {
toBrowseImage(context, images, position, null);
}
public static void toBrowseImage(Context context, ArrayList<String> images, int position, String desc) {
Intent intent = new Intent();
intent.setClass(context, BrowseImageActivity.class);
intent.putStringArrayListExtra(BrowseImageActivity.EXTRA_IMAGW_ARRAY, images);
intent.putExtra(BrowseImageActivity.EXTRA_IMAGW_INDEX, position);
intent.putExtra(BrowseImageActivity.EXTRA_IMAGW_DESC, desc);
context.startActivity(intent);
}
}