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import android.annotation.SuppressLint;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.widget.Toast;
/**
* CreateTime 2018/1/12 11:35
* Author LiuShiHua
* Description：選擇文件返回
*
* 調(diào)用方式如下
*/
//選擇文件【調(diào)用系統(tǒng)的文件管理】
// Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
// //intent.setType(“image/*”);//選擇圖片
// //intent.setType(“audio/*”); //選擇音頻
// //intent.setType(“video/*”); //選擇視頻 （mp4 3gp 是android支持的視頻格式）
// //intent.setType(“video/*;image/*”);//同時(shí)選擇視頻和圖片
// intent.setType("*/*");//無(wú)類型限制
// intent.addCategory(Intent.CATEGORY_OPENABLE);
// startActivityForResult(intent, REQUEST_CHOOSEFILE);
//@Override
//protected void onActivityResult(int requestCode,int resultCode,Intent data){//選擇文件返回
// super.onActivityResult(requestCode,resultCode,data);
// if(resultCode==RESULT_OK){
// switch(requestCode){
// case REQUEST_CHOOSEFILE:
// Uri uri=data.getData();
// chooseFilePath=FileChooseUtil.getInstance(this).getChooseFileResultPath(uri);
// Log.d(TAG,"選擇文件返回："+chooseFilePath);
// sendFileMessage(chooseFilePath);
// break;
// }
// }
//}
public class FileChooseUtil {
private Context context;
private static FileChooseUtil util = null;
private FileChooseUtil(Context context) {
this.context = context;
}
public static FileChooseUtil getInstance(Context context) {
if (util == null) {
util = new FileChooseUtil(context);
}
return util;
}
/**
* 對(duì)外接口 獲取uri對(duì)應(yīng)的路徑
*
* @param uri
* @return
*/
public String getChooseFileResultPath(Uri uri) {
String chooseFilePath = null;
if ("file".equalsIgnoreCase(uri.getScheme())) {//使用第三方應(yīng)用打開
chooseFilePath = uri.getPath();
Toast.makeText(context, chooseFilePath, Toast.LENGTH_SHORT).show();
return chooseFilePath;
}
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) {//4.4以后
chooseFilePath = getPath(context, uri);
} else {//4.4以下下系統(tǒng)調(diào)用方法
chooseFilePath = getRealPathFromURI(uri);
}
return chooseFilePath;
}
private String getRealPathFromURI(Uri contentUri) {
String res = null;
String[] proj = {MediaStore.Images.Media.DATA};
Cursor cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
if (null != cursor && cursor.moveToFirst()) {
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
res = cursor.getString(column_index);
cursor.close();
}
return res;
}
/**
* 專為Android4.4設(shè)計(jì)的從Uri獲取文件絕對(duì)路徑,，以前的方法已不好使
*/
@SuppressLint("NewApi")
private String getPath(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];
}
}
// 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 getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
uri.getPath();
}
return null;
}
private 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 column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
private 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.
*/
private 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.
*/
private boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
}
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