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shipon2004 · 2 months

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PDF Downlod and Ofline view

dependencies {

implementation 'com.github.barteksc:android-pdf-viewer:3.2.0-beta.1' implementation 'com.airbnb.android:lottie:6.3.0' implementation 'com.mindorks.android:prdownloader:0.6.0' } //-------

MainActivity -----------------

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center" android:background="@color/white" android:gravity="center" android:orientation="vertical" tools:context=".MainActivity" >

</LinearLayout>

Main Activity.java class

package com.shipon.pdflodanddownlod;

import androidx.appcompat.app.AlertDialog; import androidx.appcompat.app.AppCompatActivity;

import android.app.ProgressDialog; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.webkit.URLUtil; import android.widget.Button; import android.widget.LinearLayout; import android.widget.Toast;

import com.downloader.Error; import com.downloader.OnCancelListener; import com.downloader.OnDownloadListener; import com.downloader.OnPauseListener; import com.downloader.OnProgressListener; import com.downloader.OnStartOrResumeListener; import com.downloader.PRDownloader; import com.downloader.Progress;

import java.io.File;

public class MainActivity extends AppCompatActivity {

Button button1, button2; int downloadId;

@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); PRDownloader.initialize(getApplicationContext());

button1 = findViewById(R.id.button1); button2 = findViewById(R.id.button2);

button1.setOnClickListener(v -> {

String pdfurl = "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf";

File fil = new File(getCacheDir(), URLUtil.guessFileName(pdfurl, null, null));

if (fil.exists()){

Intent intent = new Intent(MainActivity.this, MainActivity2.class); intent.putExtra("isOnline", false); intent.putExtra("pdfurl", pdfurl); startActivity(intent);

}else { showDialog(pdfurl); }

});

button2.setOnClickListener(v -> {

String pdfurl = "https://www.clickdimensions.com/links/TestPDFfile.pdf"; File fil = new File(getCacheDir(), URLUtil.guessFileName(pdfurl, null, null));

if (fil.exists()){

Intent intent = new Intent(MainActivity.this, MainActivity2.class); intent.putExtra("isOnline", false); intent.putExtra("pdfurl", pdfurl); startActivity(intent);

}else { showDialog(pdfurl); }

});

}//============== onCreate end method ================= public void showDialog(String pdfUrl) {

AlertDialog.Builder alert = new AlertDialog.Builder(MainActivity.this); LayoutInflater inflater = getLayoutInflater();

View myView = inflater.inflate(R.layout.choose_item, null); Button btOnline = myView.findViewById(R.id.btOnline); Button btDownlod = myView.findViewById(R.id.btDownlod); Button btCancel = myView.findViewById(R.id.btCancel); alert.setView(myView);

AlertDialog alertDialog = alert.create();

alertDialog.setCancelable(false);

btOnline.setOnClickListener(v -> {

Intent intent = new Intent(MainActivity.this, MainActivity2.class); intent.putExtra("isOnline", true); intent.putExtra("pdfurl", pdfUrl); startActivity(intent);

alertDialog.dismiss();

});

btDownlod.setOnClickListener(v -> {

downlodPDF(pdfUrl); alertDialog.dismiss(); });

btCancel.setOnClickListener(v -> {

alertDialog.dismiss();

});

alertDialog.show(); }// how Dialog end method -------- private void downlodPDF(String pdfurl) {

ProgressDialog progressDialog=new ProgressDialog(MainActivity.this); progressDialog.setIcon(R.drawable.down_24); progressDialog.setMessage("Downloading PDF File, Please Wait a moment..."); progressDialog.setCancelable(false); progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(getApplicationContext(), "Downlod Start", Toast.LENGTH_SHORT).show(); PRDownloader.cancel(downloadId); progressDialog.dismiss(); } });

progressDialog.show(); downloadId = PRDownloader.download(pdfurl, String.valueOf(getCacheDir()), URLUtil.guessFileName(pdfurl, null, null)) .build() .setOnStartOrResumeListener(new OnStartOrResumeListener() { @Override public void onStartOrResume() {

} }) .setOnPauseListener(new OnPauseListener() { @Override public void onPause() {

} }) .setOnCancelListener(new OnCancelListener() { @Override public void onCancel() {

} }) .setOnProgressListener(new OnProgressListener() { @Override public void onProgress(Progress progress) { int progressPercentage = (int) (progress.currentBytes*100/progress.totalBytes); progressDialog.setMessage("Downlod : "+progressPercentage+" %");

} }) .start(new OnDownloadListener() { @Override public void onDownloadComplete() {

Toast.makeText(getApplicationContext(), "Downlod Completed", Toast.LENGTH_SHORT).show(); Intent intent = new Intent(MainActivity.this, MainActivity2.class); intent.putExtra("isOnline", false); intent.putExtra("pdfurl", pdfurl); startActivity(intent);

progressDialog.dismiss(); }

@Override public void onError(Error error) {

Toast.makeText(getApplicationContext(), "Downlod Failed", Toast.LENGTH_SHORT).show(); progressDialog.dismiss(); } });

}

}//============== public class ==========================

MainActivity 2 xmal class start

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/white" tools:context=".MainActivity2">

<com.airbnb.lottie.LottieAnimationView android:id="@+id/lotti" android:layout_width="match_parent" android:layout_height="wrap_content" android:visibility="invisible" app:lottie_autoPlay="true" app:lottie_loop="true" app:lottie_rawRes="@raw/pdf" />

<com.github.barteksc.pdfviewer.PDFView android:id="@+id/pdfView" android:layout_width="match_parent" android:layout_height="match_parent" android:visibility="invisible" />

</RelativeLayout>

MainActivity2.java class start

package com.shipon.pdflodanddownlod;

import androidx.appcompat.app.AppCompatActivity;

import android.os.AsyncTask; import android.os.Bundle; import android.view.View; import android.webkit.URLUtil; import android.widget.Toast;

import com.airbnb.lottie.LottieAnimationView; import com.github.barteksc.pdfviewer.PDFView; import com.github.barteksc.pdfviewer.util.FitPolicy;

import java.io.BufferedInputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL;

public class MainActivity2 extends AppCompatActivity {

// public static String AssateName=""; LottieAnimationView lotti; PDFView pdfView;

@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2);

pdfView = findViewById(R.id.pdfView); lotti = findViewById(R.id.lotti); lotti.setVisibility(View.VISIBLE);

boolean isOnline = getIntent().getBooleanExtra("isOnline", true); String pdfurl = getIntent().getStringExtra("pdfurl"); if (isOnline == true) { new RetrivePDFfromUrl().execute(pdfurl);

} else {

File fil = new File(getCacheDir(), URLUtil.guessFileName(pdfurl, null, null));

lodPDFOffline(fil);

}

}//============= onCreate ned method =================== private class RetrivePDFfromUrl extends AsyncTask<String, Void, InputStream> { @Override protected InputStream doInBackground(String... strings) {

try { URL url = new URL(strings[0]); HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();

if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) { return new BufferedInputStream(httpURLConnection.getInputStream()); }

} catch (MalformedURLException e) { throw new RuntimeException(e);

} catch (IOException e) { throw new RuntimeException(e); }

return null; }

@Override protected void onPostExecute(InputStream inputStream) { super.onPostExecute(inputStream);

if (inputStream != null) { lodPDFOnline(inputStream);

} else { Toast.makeText(MainActivity2.this, "PDF lod failed", Toast.LENGTH_SHORT).show(); }

} }

private void lodPDFOnline(InputStream inputStream) {

pdfView.fromStream(inputStream) .enableSwipe(true) .swipeHorizontal(true) .enableDoubletap(true) .defaultPage(0) .enableAnnotationRendering(false) .password(null) .scrollHandle(null) .enableAntialiasing(true) .spacing(0) .pageFitPolicy(FitPolicy.WIDTH) .pageSnap(true) // snap pages to screen boundaries .pageFling(true) // make a fling change only a single page like ViewPager .onLoad(nbPages -> { lotti.setVisibility(View.GONE); pdfView.setVisibility(View.VISIBLE);

}) .load();

}

private void lodPDFOffline(File file) {

pdfView.fromFile(file) .enableSwipe(true) .swipeHorizontal(true) .enableDoubletap(true) .defaultPage(0) .enableAnnotationRendering(false) .password(null) .scrollHandle(null) .enableAntialiasing(true) .spacing(0) .pageFitPolicy(FitPolicy.WIDTH) .pageSnap(true) // snap pages to screen boundaries .pageFling(true) // make a fling change only a single page like ViewPager .onLoad(nbPages -> { lotti.setVisibility(View.GONE); pdfView.setVisibility(View.VISIBLE);

}) .load();

}

}//= ==================== public calss end method =======================

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shipon2004 · 2 months

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Java তে setContentView এর উপরে আমার দেওয়া কোড তা লিখে দিন । কোডঃ getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);

#shipon sarker #shipon2004 #across the spiderverse #android #joker out #hazbin hotel #pakistan #sagor #shipon #super mario

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shipon2004 · 3 months

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Tutorial 41 : INNER JOIN in SQL

coding=----

SELECT std.Roll, exam.Reg_number, std.Name,std.Gender,exam.Group_name,exam.GPA

FROM student_details AS std INNER JOIN exam_result AS exam ON std.Roll = exam.Roll;

#shipon sarker #shipon2004 #across the spiderverse #android #hazbin hotel #joker out #pakistan #sagor #shipon #super mario #class 41

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shipon2004 · 3 months

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Tutorial 40 : JOIN Clause in SQL

coding --

SELECT std.Roll, exam.Reg_number,std.Name, std.Gender,exam.Group_name,exam.GPA

FROM student_details AS std ,exam_result AS exam WHERE std.Roll =exam.Roll;

SELECT std.Roll, exam.Reg_number, std.Name,std.Gender,exam.Group_name,exam.GPA

FROM student_details AS std JOIN exam_result AS exam ON std.Roll = exam.Roll;

#class40 #shipon sarker #shipon2004 #across the spiderverse #android #hazbin hotel #joker out #shipon #pakistan #sagor #super mario

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shipon2004 · 3 months

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Tutorial 39 : Joining Tables

SELECT student_details.Roll, Reg_number,Name,Gender,Group_name,GPA FROM student_details,exam_result WHERE student_details.Roll =exam_result.Roll;

out put

#shipon sarker #shipon2004 #across the spiderverse #android #hazbin hotel #joker out #pakistan #sagor #shipon #super mario #class 39

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shipon2004 · 3 months

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Class 32

Coding --------------------

SELECT CONCAT (Name ,' is ', Age , 'year old') FROM student_details;

output ---------------------

coding ---

SELECT CONCAT (Name ,' is ', Age , 'year old')AS student FROM student_details;

output

##new coding

SELECT GREATEST(10,20,502,-5,18);

out put

#new coding

SELECT LEAST(10,-3,5,8);

output

#super mario #joker out #the muppets #android #robot #ios #the princess bride #hazbin hotel #pakistan #across the spiderverse #class 34 #shipon2004 #shipon sarker #sagor #shipon

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shipon2004 · 3 months

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Class 26. LIKE logical operator

Code=

SELECT * FROM student_details WHERE Name LIKE '%S%';

out put-----

new codi

SELECT * FROM student_details WHERE Name LIKE '%A';

out put ---

যদি একটি লাইন গেপ দিয়ে বর্ণ খুজি তাহলে নিচের কোড গুলা কাজে লাগবে

SELECT * FROM student_details WHERE Name LIKE '_u%';

out put

#class 26 #sagor #shipon sarker #shipon2004

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shipon2004 · 3 months

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in , not, in class 25

Bangla Database Tutorial 25 : IN, NOT IN | Logical Operator

test 1 --- coding

SELECT * FROM student_details WHERE City='Sylhet' OR City='Dhaka' OR City='Barishal';

out put

new codine . how to use in

SELECT * FROM student_details WHERE City IN ('sylhet','Dhaka', 'Barisal');

pic

how use php Not in

SELECT * FROM student_details WHERE City NOT IN ('sylhet','Dhaka', 'Barisal');

out put--- pic

#robot #ios #the princess bride #android #the muppets #hazbin hotel #joker out #pakistan #across the spiderverse #super mario #shipon sarker #shipon #ed not ed sheeran #shopping #showbiz #shipon2004

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shipon2004 · 3 months

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SharedPreference to pic save

Button picImage,btnsaveImage; ImageView imageView,saveView; SharedPreferences preferences; SharedPreferences.Editor editor;

///-- oncreate start method ----

btnsaveImage=findViewById(R.id.btnsaveImage); saveView=findViewById(R.id.saveView);

preferences=getSharedPreferences("mypic", Context.MODE_PRIVATE); editor=preferences.edit();

String incodingSaveImage=preferences.getString("image",""); byte[] decodeString =Base64.decode(incodingSaveImage,Base64.DEFAULT); Bitmap decodeBitmap= BitmapFactory.decodeByteArray(decodeString,0,decodeString.length);

if (decodeBitmap!= null){ saveView.setImageBitmap(decodeBitmap); } btnsaveImage.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Bitmap bitmap=((BitmapDrawable) imageView.getDrawable()).getBitmap(); ByteArrayOutputStream outputStream=new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.PNG,100,outputStream); byte[] bytesArray= outputStream.toByteArray(); String incolodedImag= Base64.encodeToString(bytesArray,Base64.DEFAULT); editor.putString("image",incolodedImag); editor.apply(); Toast.makeText(getApplicationContext(),"Image is save",Toast.LENGTH_LONG).show(); } });

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shipon2004 · 3 months

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ShoAllData java .class

public class ShoAllData extends AppCompatActivity {

ListView listView; TextView tvTitle; DataBaseHelper dbhelper;

ArrayList<HashMap<String,String>> arrayList; HashMap<String,String> hashMap;

public static boolean Expence=true;

@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_sho_all_data); listView=findViewById(R.id.listView); tvTitle=findViewById(R.id.tvtitles); dbhelper=new DataBaseHelper(this);

if (Expence==true)tvTitle.setText(" total expense Data"); else tvTitle.setText(" total Income Data");

lodData();

}//----------------------------------- public void lodData(){ Cursor cursor=null;

if (Expence==true){ cursor=dbhelper.getAllExpense(); }else { cursor=dbhelper.getAllIncom(); }

if (cursor!=null && cursor.getCount()>0){

arrayList=new ArrayList<>();

while (cursor.moveToNext()){ int id=cursor.getInt(0); double amount=cursor.getDouble(1); String reason=cursor.getString(2); double time=cursor.getDouble(3); hashMap=new HashMap<>(); hashMap.put("id",""+id); hashMap.put("amount",""+amount); hashMap.put("reason",""+reason); hashMap.put("time",""+time); arrayList.add(hashMap);

} listView.setAdapter(new Myadepter());

}else { tvTitle.append("\n No Data found");

}

public class Myadepter extends BaseAdapter{

@Override public int getCount() { return arrayList.size(); }

@Override public Object getItem(int position) { return null; }

@Override public long getItemId(int position) { return 0; }

@Override public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater inflater=getLayoutInflater(); View myView = inflater.inflate(R.layout.item,parent,false);

TextView tvreason=myView.findViewById(R.id.tvreason); TextView tvExpenses=myView.findViewById(R.id.tvExpenses); TextView delete=myView.findViewById(R.id.delete); ImageView item_image=myView.findViewById(R.id.item_image);

if (Expence==true){ item_image.setImageResource(R.drawable.expense); }else { item_image.setImageResource(R.drawable.income); tvExpenses.setTextColor(Color.parseColor("#009688")); }

hashMap=arrayList.get(position); String id=hashMap.get("id"); String amount=hashMap.get("amount"); String reason=hashMap.get("reason");

tvreason.setText(reason); tvExpenses.setText(amount);

delete.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) {

if (Expence==true){

dbhelper.deleteExpense(id);

}else {

dbhelper.deleteIncome(id); } lodData();

} });

return myView; } }//-----------------------------------

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shipon2004 · 3 months

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DataBaseHelper class . java---------------

public class DataBaseHelper extends SQLiteOpenHelper {

public DataBaseHelper(Context context) { // টেবিল এর নাম digital_moneybag super(context, "digital_moneybag", null, 1); }

@Override public void onCreate(SQLiteDatabase db) { // এখানে দুইটি টিবিল তৈরি করা হইছে । একটি নাম: expense ও আরেক টির নাম income । চারটি কলাম নেয়া হইছে id,amount,reason, time; db.execSQL("Create table expense (id INTEGER primary key autoincrement, amount DOUBLE, reason TEXT,time DOUBLE )"); db.execSQL("Create table income (id INTEGER primary key autoincrement, amount DOUBLE, reason TEXT,time DOUBLE )");

}

@Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // ইরর বা কোনো সমস্যর জন্য এটি ডিলিট করে দেয় db.execSQL("drop table if exists expense"); db.execSQL("drop table if exists income");

}

// ----------------------- --------------------------- public void addExpense(double amount,String reason){

// টেবিল এর মধ্যে ডাটা ইন্সাট করানে হলো SQLiteDatabase db=this.getWritableDatabase();

ContentValues values=new ContentValues(); // ContentValues এটি hasmap এর কাজ করে values.put("amount",amount); values.put("reason", reason); values.put("time",System.currentTimeMillis()); db.insert("expense",null,values);

// db.insert এরে লিষ্ট এর মতো কাজ করে ------------ } //- ----------------------------------------------------------- // ----------------------- --------------------------- public void addIncome(double amount,String reason){

// this.getWritableDatabase(); এটার মানে হলো ডাটাবেজ এর মধ্যে ডাটা ডোকানো / ডাটা লিখা -- SQLiteDatabase db=this.getWritableDatabase(); ContentValues values=new ContentValues(); values.put("amount",amount); values.put("reason", reason); values.put("time",System.currentTimeMillis()); db.insert("income",null,values);

} //- ----------------------------------------------------------- //=================================================================== public double calcularTotalExpense(){

double totalExpense=0;

// this.getReadableDatabase(); এটার মানে হলো ডাটাবেজ এর মধ্যে ডাটা খুজে বাহির করা / পড়া SQLiteDatabase db=this.getReadableDatabase(); Cursor cursor=db.rawQuery("select * from expense",null);

if (cursor!=null && cursor.getCount()>0){ while (cursor.moveToNext()){// while এর মানে হলো যত খন পর্যন্ত কলাম শেষ না হবে ততখন পর্যন্ত কন্ডিশন চালো রাখা double amount=cursor.getDouble(1); totalExpense=totalExpense +amount; }

} return totalExpense;

} // ---------------------------------- //=================================================================== public double calcularTotalIncome(){

double totalIncome=0;

SQLiteDatabase db=this.getReadableDatabase(); Cursor cursor=db.rawQuery("select * from income",null);

if (cursor!=null && cursor.getCount()>0){ while (cursor.moveToNext()){ double amount=cursor.getDouble(1); totalIncome=totalIncome +amount; }

} return totalIncome;

} // ---------------------------------- public Cursor getAllExpense(){

SQLiteDatabase db=this.getReadableDatabase(); Cursor cursor=db.rawQuery("select * from expense",null);

return cursor; }

public Cursor getAllIncom(){ SQLiteDatabase db=this.getReadableDatabase(); Cursor cursor=db.rawQuery("select * from income",null); return cursor; }

public void deleteExpense(String id){

SQLiteDatabase db=this.getReadableDatabase(); db.execSQL("DELETE from expense where id like "+id);// এই লাইনটার মানে হলো ডাটা বেজ থেকে ডাটা ডিলিট করা -- } public void deleteIncome(String id){

SQLiteDatabase db=this.getReadableDatabase(); db.execSQL("DELETE from income where id like "+id);

}

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