我在不同的android版本中上传图片时遇到问题。我需要为php服务器发送图像，所以我正在使用网络服务。我用Froyo e Jelly Beans的版本进行了测试，它们可以工作，但KitKat不能工作。我在阅读有关MediaStore的文章时，我看到了不同的方式，但不管是对还是错。
我调试了项目，然后发现，在KitKat中，路径为NULL，Logcat在KitKat中告诉我“ Java Null Pointer”。我该如何做一个适用于所有版本的应用程序。
UploadImage.java
package br.gov.rj.barraemexposicao; import android.app.ProgressDialog; import android.content.ActivityNotFoundException; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.provider.MediaStore; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import java.io.DataOutputStream; import java.io.File; import java.io.FileInputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; public class EnviaFoto extends ActionBarActivity { final int PICK_FILE_RESULT_CODE = 1; final int CAMERA_IMAGE =2; TextView messageText; Button uploadButton; Button btnTiraFoto; Button selectImage; ImageView imgFoto; int serverResponseCode = 0; ProgressDialog dialog = null; String upLoadServerUri = "http://www.kweekdesign.com.br/test/recebe/UploadToServer.php"; String filePath = ""; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_envia_foto); selectImage = (Button) findViewById(R.id.selectImage); imgFoto = (ImageView) findViewById(R.id.imgFoto); messageText = (TextView)findViewById(R.id.messageText); uploadButton = (Button)findViewById(R.id.uploadButton); btnTiraFoto = (Button) findViewById(R.id.btnTiraFoto); upLoadServerUri = "http://www.kweekdesign.com.br/test/recebe/UploadToServer.php"; addListeners(); } public String uriToPath(Uri uri) { String[] projection = { MediaStore.Images.Media.DATA }; Cursor cursor = managedQuery(uri, projection, null, null, null); int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); } @Override protected void onActivityResult (int requestCode, int resultCode, Intent data){ if (data != null && (requestCode == PICK_FILE_RESULT_CODE || requestCode == CAMERA_IMAGE)){ filePath = uriToPath(data.getData()); imgFoto.setImageURI(data.getData()); uploadButton.setVisibility(1); } } public int uploadFile(String sourceFileUri) { String fileName = sourceFileUri; HttpURLConnection conn = null; DataOutputStream dos = null; String lineEnd = "\r\n"; String twoHyphens = "--"; String boundary = "*****"; int bytesRead, bytesAvailable, bufferSize; byte[] buffer; int maxBufferSize = 1 * 1024 * 1024; File sourceFile = new File(sourceFileUri); if (!sourceFile.isFile()) { dialog.dismiss(); Log.e("uploadFile", "Source File not exist :" + filePath); runOnUiThread(new Runnable() { public void run() { messageText.setText("Source File not exist :"+filePath); } }); return 0; } else { try { // open a URL connection to the Servlet FileInputStream fileInputStream = new FileInputStream(sourceFile); URL url = new URL(upLoadServerUri); // Open a HTTP connection to the URL conn = (HttpURLConnection) url.openConnection(); conn.setDoInput(true); // Allow Inputs conn.setDoOutput(true); // Allow Outputs conn.setUseCaches(false); // Don't use a Cached Copy conn.setRequestMethod("POST"); conn.setRequestProperty("Connection", "Keep-Alive"); conn.setRequestProperty("ENCTYPE", "multipart/form-data"); conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary); conn.setRequestProperty("uploaded_file", fileName); dos = new DataOutputStream(conn.getOutputStream()); dos.writeBytes(twoHyphens + boundary + lineEnd); dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\"" + fileName + "\"" + lineEnd); dos.writeBytes(lineEnd); // create a buffer of maximum size bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); buffer = new byte[bufferSize]; // read file and write it into form... bytesRead = fileInputStream.read(buffer, 0, bufferSize); while (bytesRead > 0) { dos.write(buffer, 0, bufferSize); bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); bytesRead = fileInputStream.read(buffer, 0, bufferSize); } // send multipart form data necesssary after file data... dos.writeBytes(lineEnd); dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); // Responses from the server (code and message) serverResponseCode = conn.getResponseCode(); String serverResponseMessage = conn.getResponseMessage(); Log.i("uploadFile", "HTTP Response is : " + serverResponseMessage + ": " + serverResponseCode); if(serverResponseCode == 200){ runOnUiThread(new Runnable() { public void run() { String msg = "Envio feito com sucesso!"; messageText.setText(msg); Toast.makeText(EnviaFoto.this, "File Upload Complete.", Toast.LENGTH_SHORT).show(); } }); } //close the streams // fileInputStream.close(); dos.flush(); dos.close(); } catch (MalformedURLException ex) { dialog.dismiss(); ex.printStackTrace(); runOnUiThread(new Runnable() { public void run() { messageText.setText("MalformedURLException Exception : check script url."); Toast.makeText(EnviaFoto.this, "MalformedURLException", Toast.LENGTH_SHORT).show(); } }); Log.e("Upload file to server", "error: " + ex.getMessage(), ex); } catch (Exception e) { dialog.dismiss(); e.printStackTrace(); runOnUiThread(new Runnable() { public void run() { messageText.setText("Got Exception : see logcat "); Toast.makeText(EnviaFoto.this, "Got Exception : see logcat ", Toast.LENGTH_SHORT).show(); } }); Log.e("Upload file to server Exception", "Exception : " + e.getMessage(), e); } dialog.dismiss(); return serverResponseCode; } // End else block } private void addListeners(){ selectImage.setOnClickListener(new View.OnClickListener(){ public void onClick(View view){ Intent intent = new Intent(Intent.ACTION_GET_CONTENT); Intent chooser = Intent.createChooser(intent,"Escolha a foto"); intent.setType("image/*"); try { startActivityForResult(chooser, PICK_FILE_RESULT_CODE ); }catch (ActivityNotFoundException e){ Log.e("tag", e.getMessage()); } } }); uploadButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dialog = ProgressDialog.show(EnviaFoto.this, "", "Enviando foto...", true); new Thread(new Runnable() { public String uriToPath(Uri uri) { String[] projection = { MediaStore.Images.Media.DATA }; Cursor cursor = managedQuery(uri, projection, null, null, null); int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); } protected void onActivityResult (int requestCode, int resultCode, Intent data){ if (data != null && requestCode == PICK_FILE_RESULT_CODE){ filePath = uriToPath(data.getData()); imgFoto.setImageURI(data.getData()); uploadButton.setVisibility(1); } } public void run() { runOnUiThread(new Runnable() { public void run() { messageText.setText("Enviando foto..."); } }); uploadFile(filePath); } }).start(); } }); btnTiraFoto.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { startActivityForResult(new Intent(MediaStore.ACTION_IMAGE_CAPTURE), CAMERA_IMAGE); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.envia_foto, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } }
表现
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="br.gov.rj.barraemexposicao" > <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="19" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="br.gov.rj.barraemexposicao.EnviaFoto" android:label="@string/app_name" android:screenOrientation="portrait" > <intent-filter> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="br.gov.rj.barraemexposicao.Enquete" android:label="@string/title_activity_enquete" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
LogCat
07-04 08:46:54.084 13565-13565/br.gov.rj.barraemexposicao I/Adreno-EGL﹕ <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018_msm8226_LNX.LA.3.5.1_RB1__release_AU () OpenGL ES Shader Compiler Version: E031.24.00.08 Build Date: 03/07/14 Fri Local Branch: Remote Branch: quic/LNX.LA.3.5.1_RB1.1 Local Patches: NONE Reconstruct Branch: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018 + f2fd134 + NOTHING 07-04 08:46:54.157 13565-13565/br.gov.rj.barraemexposicao D/OpenGLRenderer﹕ Enabling debug mode 0 07-04 08:47:03.105 13565-13565/br.gov.rj.barraemexposicao D/AndroidRuntime﹕ Shutting down VM 07-04 08:47:03.121 13565-13565/br.gov.rj.barraemexposicao E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: br.gov.rj.barraemexposicao, PID: 13565 java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=2, result=-1, data=Intent { act=inline-data (has extras) }} to activity {br.gov.rj.barraemexposicao/br.gov.rj.barraemexposicao.EnviaFoto}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.net.Uri.getScheme()' on a null object reference at android.app.ActivityThread.deliverResults(ActivityThread.java:3432) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3475) at android.app.ActivityThread.access$1300(ActivityThread.java:139) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1258) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5086) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.net.Uri.getScheme()' on a null object reference at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1420) at android.content.ContentResolver.query(ContentResolver.java:445) at android.content.ContentResolver.query(ContentResolver.java:404) at br.gov.rj.barraemexposicao.EnviaFoto.uriToPath(EnviaFoto.java:80) at br.gov.rj.barraemexposicao.EnviaFoto.onActivityResult(EnviaFoto.java:97) at android.app.Activity.dispatchActivityResult(Activity.java:5446) at android.app.ActivityThread.deliverResults(ActivityThread.java:3428) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3475) at android.app.ActivityThread.access$1300(ActivityThread.java:139) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1258) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5086) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 07-04 08:47:05.066 13565-13565/br.gov.rj.barraemexposicao I/Process﹕ Sending signal. PID: 13565 SIG: 9 07-04 08:51:33.298 15518-15518/br.gov.rj.barraemexposicao I/Adreno-EGL﹕ <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018_msm8226_LNX.LA.3.5.1_RB1__release_AU () OpenGL ES Shader Compiler Version: E031.24.00.08 Build Date: 03/07/14 Fri Local Branch: Remote Branch: quic/LNX.LA.3.5.1_RB1.1 Local Patches: NONE Reconstruct Branch: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018 + f2fd134 + NOTHING 07-04 08:51:33.393 15518-15518/br.gov.rj.barraemexposicao D/OpenGLRenderer﹕ Enabling debug mode 0 07-04 08:52:08.015 15518-15530/br.gov.rj.barraemexposicao W/CursorWrapperInner﹕ Cursor finalized without prior close() 07-04 08:52:10.068 15518-16522/br.gov.rj.barraemexposicao E/AndroidRuntime﹕ FATAL EXCEPTION: Thread-34287 Process: br.gov.rj.barraemexposicao, PID: 15518 java.lang.NullPointerException: Attempt to invoke virtual method 'char[] java.lang.String.toCharArray()' on a null object reference at java.io.File.fixSlashes(File.java:185) at java.io.File.<init>(File.java:134) at br.gov.rj.barraemexposicao.EnviaFoto.uploadFile(EnviaFoto.java:102) at br.gov.rj.barraemexposicao.EnviaFoto$6$1.run(EnviaFoto.java:277) at java.lang.Thread.run(Thread.java:811) 07-04 08:52:10.815 15518-15518/br.gov.rj.barraemexposicao E/WindowManager﹕ android.view.WindowLeaked: Activity br.gov.rj.barraemexposicao.EnviaFoto has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{65280820 V.E..... R......D 0,0-684,192} that was originally added here at android.view.ViewRootImpl.<init>(ViewRootImpl.java:359) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:248) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) at android.app.Dialog.show(Dialog.java:286) at android.app.ProgressDialog.show(ProgressDialog.java:116) at android.app.ProgressDialog.show(ProgressDialog.java:99) at br.gov.rj.barraemexposicao.EnviaFoto$6.onClick(EnviaFoto.java:250) at android.view.View.performClick(View.java:4456) at android.view.View$PerformClick.run(View.java:18465) at android.os.Handler.handleCallback(Handler.java:733) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5086) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 07-04 09:03:23.546 18083-18083/br.gov.rj.barraemexposicao I/Adreno-EGL﹕ <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018_msm8226_LNX.LA.3.5.1_RB1__release_AU () OpenGL ES Shader Compiler Version: E031.24.00.08 Build Date: 03/07/14 Fri Local Branch: Remote Branch: quic/LNX.LA.3.5.1_RB1.1 Local Patches: NONE Reconstruct Branch: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018 + f2fd134 + NOTHING 07-04 09:03:23.614 18083-18083/br.gov.rj.barraemexposicao D/OpenGLRenderer﹕ Enabling debug mode 0 07-04 09:04:14.226 18083-18096/br.gov.rj.barraemexposicao W/CursorWrapperInner﹕ Cursor finalized without prior close() 07-04 09:04:14.428 18083-18083/br.gov.rj.barraemexposicao I/Adreno-EGL﹕ <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018_msm8226_LNX.LA.3.5.1_RB1__release_AU () OpenGL ES Shader Compiler Version: E031.24.00.08 Build Date: 03/07/14 Fri Local Branch: Remote Branch: quic/LNX.LA.3.5.1_RB1.1 Local Patches: NONE Reconstruct Branch: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018 + f2fd134 + NOTHING 07-04 09:04:17.318 18083-19131/br.gov.rj.barraemexposicao E/AndroidRuntime﹕ FATAL EXCEPTION: Thread-34498 Process: br.gov.rj.barraemexposicao, PID: 18083 java.lang.NullPointerException: Attempt to invoke virtual method 'char[] java.lang.String.toCharArray()' on a null object reference at java.io.File.fixSlashes(File.java:185) at java.io.File.<init>(File.java:134) at br.gov.rj.barraemexposicao.EnviaFoto.uploadFile(EnviaFoto.java:100) at br.gov.rj.barraemexposicao.EnviaFoto$6$1.run(EnviaFoto.java:275) at java.lang.Thread.run(Thread.java:811) 07-04 09:04:18.179 18083-18083/br.gov.rj.barraemexposicao E/WindowManager﹕ android.view.WindowLeaked: Activity br.gov.rj.barraemexposicao.EnviaFoto has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{65280100 V.E..... R......D 0,0-684,192} that was originally added here at android.view.ViewRootImpl.<init>(ViewRootImpl.java:359) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:248) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) at android.app.Dialog.show(Dialog.java:286) at android.app.ProgressDialog.show(ProgressDialog.java:116) at android.app.ProgressDialog.show(ProgressDialog.java:99) at br.gov.rj.barraemexposicao.EnviaFoto$6.onClick(EnviaFoto.java:248) at android.view.View.performClick(View.java:4456) at android.view.View$PerformClick.run(View.java:18465) at android.os.Handler.handleCallback(Handler.java:733) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5086) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
实例对话框后更新
07-04 09:54:17.341 26763-26763/br.gov.rj.barraemexposicao D/AndroidRuntime﹕ Shutting down VM 07-04 09:54:17.364 26763-26763/br.gov.rj.barraemexposicao E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: br.gov.rj.barraemexposicao, PID: 26763 java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{br.gov.rj.barraemexposicao/br.gov.rj.barraemexposicao.EnviaFoto}: java.lang.InstantiationException: br.gov.rj.barraemexposicao.EnviaFoto at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2124) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2257) at android.app.ActivityThread.access$800(ActivityThread.java:139) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5086) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) Caused by: java.lang.InstantiationException: br.gov.rj.barraemexposicao.EnviaFoto at java.lang.Class.newInstance(Class.java:1561) at android.app.Instrumentation.newActivity(Instrumentation.java:1084) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2115) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2257) at android.app.ActivityThread.access$800(ActivityThread.java:139) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5086) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
好，关于这个例外
java.lang.NullPointerException: Attempt to invoke virtual method 'char[] java.lang.String.toCharArray()' on a null object reference
使用“ 照片” 应用程序时可能会遇到此异常，但在“ 图库” 应用程序中却很少见。这可能很重要，因为在Android最新版本5.0 Lollipop中 ，他们删除了 Gallery 应用程序，而现在仅具有 Photos 应用程序（不同的供应商可能有自己的其他内置照片应用程序，当然用户也可以使用任何外部应用程序）
因此，您将获得`filePath = null’。现在的问题是 为什么它为空？ 。
因此，可能有两个原因。
第一种是您的uriToPath(Uri uri)方法无法正常工作，第二种是您Uri从中获取的data.getData()方法不正确。
uriToPath(Uri uri)
Uri
data.getData()
您的uriToPath(Uri uri)方法似乎是正确的，所以问题出在您的中Uri。您可能已经注意到，如果从获取的图像 库 的应用程序，还有机会少，你得到null的filePath，但如果你正在使用 照片 应用程序中的机会增加。
null
filePath
发生这种情况是因为您的“ 照片” 应用显示的照片可能不在您的本地设备上，而这些照片实际上在Google服务器上。因此，当您Uri通过选择照片进行询问时，它会提供链接到该服务器的 Uri 。
Uri可能是这样 content://com.google.android.apps.photos.content/0/https%3A%2F%2Flh3.googleusercontent.com%2FL-3Jm0TaSqnuKkitli5mK0-d
content://com.google.android.apps.photos.content/0/https%3A%2F%2Flh3.googleusercontent.com%2FL-3Jm0TaSqnuKkitli5mK0-d
而不是您的本地设备。本地设备Uri将像这样
content://media/external/images/media/49518
由于这种差异，您uriToPath(Uri uri)将返回null。
因此，请检查第Uri一个并相应地从本地设备或服务器获取图像。
您可以使用DocumentsProvider API，因此不必担心本地和服务器的文件。
private Bitmap getBitmapFromUri(Uri uri) throws IOException { ParcelFileDescriptor parcelFileDescriptor = getContentResolver().openFileDescriptor(uri, "r"); FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor(); Bitmap image = BitmapFactory.decodeFileDescriptor(fileDescriptor); parcelFileDescriptor.close(); return image; }
但是，如果您在“ 照片” 应用程序中有一些本地照片，则选择这些 照片 后，您将获得本地 Uri ，它将为您提供正确的文件路径。
您还可以在“ 照片” 应用本身中下载照片（位于Google服务器上），以后再使用。
