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хорошее утро сэр, Я использовал навигационный ящик и фрагмент. Я использую ActionBarActivity и в котором я назвал этот фрагмент. В моем фрагменте я снимаю изображение с камеры, поэтому в методе getActivityResult() не дайте мне значения Intent.параметр getActivityResult() указывает значение null
package com.ssoft.admin.imageprocessingwithnavigation;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
public class CameraDemo extends Fragment implements View.OnClickListener {
ImageButton mImgBtnActivityBack,mImgBtnActivityWrong,mImgBtnActivityRight ,mImgBtnActivityEdit ,mImgBtnActivitySearch ,mImgBtnActivityAdd ,mImgBtnActivityNext,mImgBtnActivitySetting;
LinearLayout mLinearLayout1,mLinearLayout2;
Button mFragSignatureClear,mBtnBlack,mBtnRed,mSIBtnSubmit,mSIBtnCamera,mSIBtnAdd ;
PaintView mPaintView;
int currrID = 0;
android.support.v4.app.Fragment fragment;
public int st = 3;
int sizex, sizeh;
Paint paint = new Paint() ;
Uri imageUri=null ;
final int CAMERA_DATA = 1888, INTENT_DATA = 1 ;
Bitmap mbkground ;
public CameraDemo() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
mbkground = null ;
mLinearLayout2=(LinearLayout) rootView.findViewById(R.id.draw);
mPaintView = new PaintView(getActivity().getApplicationContext());
mLinearLayout2.addView(mPaintView);
mFragSignatureClear=(Button) rootView.findViewById(R.id.fragSignatureClear);
mFragSignatureClear.setOnClickListener(this);
mBtnBlack=(Button)rootView.findViewById(R.id.black);
mBtnBlack.setOnClickListener(this);
mBtnRed=(Button)rootView.findViewById(R.id.red);
mBtnRed.setOnClickListener(this);
mSIBtnSubmit=(Button) rootView.findViewById(R.id.fragSIBtnSubmit);
mSIBtnSubmit.setOnClickListener(this);
mSIBtnCamera=(Button) rootView.findViewById(R.id.camera) ;
mSIBtnCamera.setOnClickListener(this) ;
mSIBtnAdd = (Button) rootView.findViewById(R.id.add) ;
mSIBtnAdd . setOnClickListener(this);
DisplayMetrics m = this.getResources().getDisplayMetrics();
float density = getResources().getDisplayMetrics().density;
int w = m.widthPixels;
int h = m.heightPixels;
sizex = w;
sizeh = h;
Log.i("hi", "" + sizex);
Log.i("hi", "" + sizeh);
Log.i("hi", "" + density);
float fsize = sizex/density;
return rootView;
}
@Override
public void onClick(View v) {
if(v.getId()==R.id.black){
currrID=v.getId();
}else if(v.getId()==R.id.black){
currrID=v.getId();
}else if(v.getId()==R.id.fragSIBtnSubmit){
mPaintView.toJPEGFile();
mPaintView.SaveFile();
}else if(v.getId()==R.id.camera){
captureImage();
}else if(v.getId()==R.id.add){
mPaintView.loadFromFile();
}
else {
Toast.makeText(getActivity().getApplicationContext(), "FragSIPhotos Add Button OnClick", Toast.LENGTH_SHORT).show();
}
}
class Point {
float x, y;
public String toString() {
return x + "," + y;
}
}
public class LineData {
List<Point> points = new ArrayList<Point>();
LineData(List<Point> p) {
points.addAll(p);
}
public void Draw(Canvas mCanvas, Paint paint) {
float fData[] = new float[points.size() * 4];
int Index = 0;
for (Point point : points) {
if (Index > 0) {
fData[Index++] = point.x;
fData[Index++] = point.y;
}
fData[Index++] = point.x;
fData[Index++] = point.y;
// canvas.drawCircle(point.x, point.y, 5, paint);
}
if (Index > 2)
mCanvas.drawLines(fData, 0, Index - 2, paint);
}
}
public class PaintView extends View implements View.OnTouchListener {
private static final String TAG = "PaintView" ;
Paint paint = new Paint() ;
int t = 0 ;
List<Point> points = new ArrayList<Point>() ;
List<LineData> pointsred = new ArrayList<LineData>() ;
List<LineData> pointsblack = new ArrayList<LineData>() ;
public PaintView(Context context) {
super(context) ;
setFocusable(true) ;
setFocusableInTouchMode(true) ;
List<Point> points = new ArrayList<Point>() ;
setDrawingCacheEnabled(true) ;
this.setOnTouchListener(this) ;
mbkground = BitmapFactory.decodeResource(getResources(),
R.drawable.plain) ;
paint.setAntiAlias(true) ;
paint.setStrokeMiter(10.0f) ;
paint.setStrokeWidth(st) ;
currrID = R.id.red ;
}
@Override
public void onDraw(Canvas mCanvas) {
mCanvas.drawBitmap(mbkground, 0, 0, null);
// canvas.drawColor(Color.WHITE) ;
this.setBackgroundColor(Color.BLACK);
// To Do Paint for text
//this code for my image app
//yesss very good
/* Paint mText= new Paint(Color.RED);
mText.setTextSize(25);
mCanvas.drawText("Hiren",100,100,mText);
*/ if (currrID == R.id.red)
paint.setColor(Color.RED) ;
else if (currrID == R.id.black)
paint.setColor(Color.BLACK) ;
else
paint.setColor(Color.BLACK) ;
float fdata[] = new float[points.size() * 4] ;
int Index = 0 ;
for (Point point : points) {
if (Index > 0) {
fdata[Index++] = point.x ;
fdata[Index++] = point.y ;
}
fdata[Index++] = point.x ;
fdata[Index++] = point.y ;
// canvas.drawCircle(point.x, point.y, 5, paint);
}
if (Index > 2)
mCanvas.drawLines(fdata, 0, Index - 2, paint);
paint.setColor(Color.RED) ;
for (LineData lines : pointsred)
lines.Draw(mCanvas, paint) ;
paint.setColor(Color.BLACK) ;
for (LineData lines : pointsblack)
lines.Draw(mCanvas, paint) ;
paint.setColor(Color.WHITE) ;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
points.clear() ;
} else if (event.getAction() == android.view.MotionEvent.ACTION_UP) {
{
LineData data = new LineData(points) ;
if (currrID == R.id.red)
pointsred.add(data) ;
else if (currrID == R.id.black)
pointsblack.add(data) ;
points.clear() ;
}
} else {
Point point = new Point() ;
point.x = event.getX() ;
point.y = event.getY() ;
points.add(point) ;
}
invalidate() ;
return true;
}
public void toJPEGFile() {
File folder = new File(Environment.getExternalStorageDirectory()
+ "/Mateco/") ;
if (!folder.exists())
folder.mkdirs() ;
try {
this.setDrawingCacheEnabled(true) ;
File f = new File(Environment.getExternalStorageDirectory()
+ "/Mateco/" + "Mateco" + ".png") ;
// file mFile = new File(Environment.g)
FileOutputStream fos = new FileOutputStream(f) ;
Bitmap bitmap = this.getDrawingCache() ;
bitmap.compress(Bitmap.CompressFormat.PNG, 80, fos) ;
// 80 quality bet 0-100 define
fos.flush() ;
fos.close() ;
this.setDrawingCacheEnabled(false) ;
} catch (FileNotFoundException e) {
e.printStackTrace() ;
} catch (IOException e) {
e.printStackTrace() ;
}
}
public void loadFromFile() {
FileInputStream in;
BufferedInputStream buf;
try {
in = new FileInputStream(
Environment.getExternalStorageDirectory() + "/Mateco/"
+ "mateco" + ".jpg");
buf = new BufferedInputStream(in);
mbkground = BitmapFactory.decodeStream(buf);
if (in != null) {
in.close();
}
if (buf != null) {
buf.close();
}
} catch (Exception e) {
Log.e("Error reading file", e.toString());
}
}
public void setBitMap(){
/* mbkground = BitmapFactory.decodeResource(getResources(),
R.drawable.background) ;
*/
}
public void setBitMap(Bitmap photo){
mbkground = photo;
}
public void SaveFile() {
Toast.makeText(getActivity().getApplicationContext(),"Save 1",Toast.LENGTH_SHORT).show();
File folder = new File(Environment.getExternalStorageDirectory()
+ "/Mateco/");
if (!folder.exists())
folder.mkdirs();
try {
this.setDrawingCacheEnabled(true);
t++;
File f = new File(Environment.getExternalStorageDirectory()
+ "/Mateco/" + System.currentTimeMillis() + ".jpg");
FileOutputStream fos = new FileOutputStream(f);
Bitmap bitmap = this.getDrawingCache();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
// 80 quality bet 0-100 define
fos.flush();
fos.close();
File temp = new File(Environment.getExternalStorageDirectory()
+ "/Mateco/" + "Mateco" + ".png");
temp.delete();
this.setDrawingCacheEnabled(false);
} catch (FileNotFoundException e) {
Toast.makeText(getActivity().getApplicationContext(),"FILE_NOT_FOUND_EXCEPTION "+e.getMessage(),Toast.LENGTH_SHORT).show();
e.printStackTrace();
} catch (IOException e) {
Toast.makeText(getActivity().getApplicationContext(),"IO_EXCEPTION "+e.getMessage(),Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
Intent mediaScanIntent = new Intent(
Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File f = new File(
"file://"
+ Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES));
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
getActivity().getApplicationContext().sendBroadcast(mediaScanIntent);
Toast.makeText(getActivity().getApplicationContext(),"Save 9",Toast.LENGTH_SHORT).show();
} else {
getActivity().getApplicationContext().sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
Uri.parse("file://"
+ Environment.getExternalStorageDirectory())));
Toast.makeText(getActivity().getApplicationContext(),"Save 11",Toast.LENGTH_SHORT).show();
}
}
}
public void captureImage(){
// Define the file-name to save photo taken by Camera activity
String fileName = "Mateco.jpg";
// Create parameters for Intent with filename
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, fileName);
// Log.e("Intrenal Storage "+MediaStore.Images.Media.INTERNAL_CONTENT_URI.toString(),"");
values.put(MediaStore.Images.Media.DESCRIPTION,"Image capture by camera");
// imageUri is the current activity attribute, define and save it for later usage
Uri imageUri = getActivity().getApplicationContext().getContentResolver().insert(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
/* Uri imageUri=getActivity().getApplicationContext().getContentResolver().insert(MediaStore. Images. Media. INTERNAL_CONTENT_URI,values) ;
*/
/**** EXTERNAL_CONTENT_URI : style URI for the "primary" external storage volume. ****/
// Standard Intent action that can be sent to have the camera
// application capture an image and return it.
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, INTENT_DATA);
Log.e("captureImage()", "state -1");
getActivity().startActivityForResult(intent, CAMERA_DATA);
Log.e("captureIma ge()", "end");
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.e("OnActivityResult()", "1");
try {
if (requestCode == CAMERA_DATA && resultCode == getActivity().RESULT_OK) {
// Image captured and saved to fileUri specified in the Intent
Log.e("OnActivityResult()", "2");
InputStream stream =getActivity().getApplicationContext(). getContentResolver().openInputStream(
data.getData());
mbkground = BitmapFactory.decodeStream(stream);
Log.e("OnActivityResult()", "2.1");
Bitmap photo = (Bitmap) data.getExtras().get("data");
Log.e("OnActivityResult()", "2.2");
mPaintView.setBitMap(photo);
Log.e("OnActivityResult()", "3");
} else {
// Image capture failed, advise user
Log.e("OnActivityResult()", "5");
}
}catch (Exception objException){
Log.e("onActivityResult();",""+objException.getMessage());
}
}
}
Поскольку вы вызываете 'getActivity(). StartActivityForResult (намерение, CAMERA_DATA)', хостинг-активность получит результат. Вы пробовали называть его без 'getActivty()'? Таким образом, ваш фрагмент должен получить результат. –
Mr.MH Я попробую вас предложить, но он не сработал, он также дает значения null в Intent –
@HirenVaghela: где вы используете 'getActivityResult()' ?? –