为什么当我从图库中选择图像时使用我的设备获取错误但是如果不使用模拟器？ 注意*模拟器使用api 17，我的设备使用api 19
在我收到错误后，我尝试从WC_Activity.java中删除此部分代码并且它正常工作
我怎么能解决这个问题？
if (Build.VERSION.SDK_INT < 11)
realPath = RealPathUtil.getRealPathFromURI_BelowAPI11(this, data.getData());
// SDK >= 11 && SDK < 19
else if (Build.VERSION.SDK_INT < 19)
realPath = RealPathUtil.getRealPathFromURI_API11to18(this, data.getData());
// SDK > 19 (Android 4.4)
else
realPath = RealPathUtil.getRealPathFromURI_API19(this, data.getData());
完整代码
WC_Activity.java
package com.emergency.e_place;
import android.app.ProgressDialog;
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.Bundle;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
/**
* Created by Eggy on 5/3/2016.
*/
public class WC_Activity extends AppCompatActivity {
final String TAG = "DEBUG";
private ImageSwitcher imageview;
private int PICK_IMAGE_REQUEST = 1;
private int ACTION_IMAGE_CAPTURE=1;
Button b;
Button Camera;
int serverResponseCode = 0;
ProgressDialog dialog = null;
String realPath;
String Latitude;
String Longitude;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_wc);
b = (Button) findViewById(R.id.btnSimpanWC);
Camera = (Button) findViewById(R.id.Camera);
Toolbar toolbar=(Toolbar)findViewById(R.id.toolbarWC);
setSupportActionBar(toolbar);
//ambil lokasi dari MainActivity
Intent myIntent = getIntent(); // gets the previously created intent
Latitude = myIntent.getStringExtra("Latitude"); // will return "FirstKeyValue"
Longitude= myIntent.getStringExtra("Longitude"); // will return "SecondKeyValue"
Log.d(TAG, "onLocationChanged: " + Longitude);
//ambil lokasi dari MainActivity
Button ChooseFile = (Button) findViewById(R.id.ChooseFile);
ChooseFile.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
// Show only images, no videos or anything else
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
// Always show the chooser (if there are multiple options available)
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);
}
});
Button Camera = (Button) findViewById(R.id.Camera);
Camera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent,ACTION_IMAGE_CAPTURE);
}
});
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog = ProgressDialog.show(WC_Activity.this, "", "Uploading file...", true);
new Thread(new Runnable() {
public void run() {
runOnUiThread(new Runnable() {
public void run() {
}
});
int response= uploadFile(realPath);
System.out.println("RES : " + response);
}
}).start();
}
});
}
public int uploadFile(String sourceFileUri) {
String upLoadServerUri = "http://192.168.1.101/e_place/android/upload_image_wc.php";
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()) {
Log.e("uploadFile", "Source File Does not exist");
return 0;
}
try { // open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
conn = (HttpURLConnection) url.openConnection(); // Open a HTTP connection to the URL
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);
//ubah nama gambar menjadi data dari latitude_longitude
String namafoto = "/"+Latitude+"_"+Longitude+".";
String namafile = fileName.substring(0,fileName.lastIndexOf("/")) +namafoto+(fileName.substring(fileName.lastIndexOf(".")+1));
conn.setRequestProperty("uploaded_file", namafile);
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""+ namafile + "\"" + lineEnd);
dos.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available(); // create a buffer of maximum size
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() {
Toast.makeText(WC_Activity.this, "File Upload Complete.", Toast.LENGTH_SHORT).show();
}
});
}
//close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
Toast.makeText(WC_Activity.this, "MalformedURLException", Toast.LENGTH_SHORT).show();
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
} catch (Exception e) {
dialog.dismiss();
e.printStackTrace();
Toast.makeText(WC_Activity.this, "Exception : " + e.getMessage(), Toast.LENGTH_SHORT).show();
Log.e("Upload file to server Exception", "Exception : " + e.getMessage(), e);
}
dialog.dismiss();
return serverResponseCode;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
ImageView imageView = (ImageView) findViewById(R.id.imageView);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
Uri uri = data.getData();
if (Build.VERSION.SDK_INT < 11)
realPath = RealPathUtil.getRealPathFromURI_BelowAPI11(this, data.getData());
// SDK >= 11 && SDK < 19
else if (Build.VERSION.SDK_INT < 19)
realPath = RealPathUtil.getRealPathFromURI_API11to18(this, data.getData());
// SDK > 19 (Android 4.4)
else
realPath = RealPathUtil.getRealPathFromURI_API19(this, data.getData());
try {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
Log.d(TAG, "niiih : " + realPath);
imageView.setImageBitmap(bitmap);
imageView.getLayoutParams().height = 300;
imageView.getLayoutParams().width = 300;
} catch (IOException e) {
e.printStackTrace();
}
}
}
public Uri getImageUri(Context inContext, Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
}
public String getRealPathFromURI(Uri uri) {
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
return cursor.getString(idx);
}
}
RealPathUtil.java
package com.emergency.e_place;
/**
* Created by Eggy on 6/6/2016.
*/
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.CursorLoader;
import android.database.Cursor;
import android.net.Uri;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
public class RealPathUtil {
@SuppressLint("NewApi")
public static String getRealPathFromURI_API19(Context context, Uri uri){
String filePath = "";
String wholeID = DocumentsContract.getDocumentId(uri);
// Split at colon, use second item in the array
String id = wholeID.split(":")[1];
String[] column = { MediaStore.Images.Media.DATA };
// where id is equal to
String sel = MediaStore.Images.Media._ID + "=?";
Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
column, sel, new String[]{ id }, null);
int columnIndex = cursor.getColumnIndex(column[0]);
if (cursor.moveToFirst()) {
filePath = cursor.getString(columnIndex);
}
cursor.close();
return filePath;
}
@SuppressLint("NewApi")
public static String getRealPathFromURI_API11to18(Context context, Uri contentUri) {
String[] proj = { MediaStore.Images.Media.DATA };
String result = null;
CursorLoader cursorLoader = new CursorLoader(
context,
contentUri, proj, null, null, null);
Cursor cursor = cursorLoader.loadInBackground();
if(cursor != null){
int column_index =
cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
result = cursor.getString(column_index);
}
return result;
}
public static String getRealPathFromURI_BelowAPI11(Context context, Uri contentUri){
String[] proj = { MediaStore.Images.Media.DATA };
Cursor cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
int column_index
= cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
}
logcat的
06-07 18:37:54.324 5168-5168/com.emergency.e_place E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.emergency.e_place, PID: 5168
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { dat=content://media/external/images/media/12513 (has extras) }} to activity {com.emergency.e_place/com.emergency.e_place.WC_Activity}: java.lang.NullPointerException
at android.app.ActivityThread.deliverResults(ActivityThread.java:3601)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3644)
at android.app.ActivityThread.access$1400(ActivityThread.java:166)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1329)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5511)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.emergency.e_place.WC_Activity.getImageUri(WC_Activity.java:244)
at com.emergency.e_place.WC_Activity.onActivityResult(WC_Activity.java:209)
at android.app.Activity.dispatchActivityResult(Activity.java:5514)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3597)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3644)
at android.app.ActivityThread.access$1400(ActivityThread.java:166)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1329)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5511)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
[ 06-07 18:37:54.334 212: 362 D/ ]
RIL_onMultiClientUnsolicitedResponse:
[ 06-07 18:37:54.334 212: 362 E/ ]
unsupported multiclient unsolicited response code 1009
答案 0 :(得分：1)
尝试使用Intent.ACTION_PICK而不是Intent.ACTION_GET_CONTENT从图库中选择一张照片。