Image Download using asynchronous task

hi guys image download using asynchronous very easy. The below coding very useful to all

AsyncTaskRunnerObject runner = new AsyncTaskRunnerObject(this);
runner.execute(Partnerdownloadurl,userid);//update

Partnerdownloadurl = Download url (passing parameter )
userid = userid is the login member id



class AsyncTaskRunnerObject extends AsyncTask<String,String,String> {
    private String resp,Memberid,AsyType,OBJID;
    private Context myCtx;
    public AsyncTaskRunnerObject(Context ctx){
        this.myCtx = ctx;
    }
    @Override    protected void onPreExecute() {
        Log.e("Pre Execute","Pre Execute");
    }
    @Override    protected void onPostExecute(String s) {
        Log.e("Post Execute",""+s);
        StorePreference.SinglewritePreference(myCtx, "LOCAL_FEMALE_PROFILE_IMAGE", s);
    }
    @Override    protected String doInBackground(String... params) {
        HttpURLConnection urlConnection = null;
        try {
            URL uri = new URL(params[0]);
            Memberid = params[1];
            urlConnection = (HttpURLConnection) uri.openConnection();
            urlConnection.setRequestMethod("GET");
            int statusCode = urlConnection.getResponseCode();
            if (statusCode != HttpStatus.SC_OK) {
                return null;
            }
            InputStream inputStream = urlConnection.getInputStream();
            if (inputStream != null) {
                File storageDir;
                String mediatype = null;
                String audiofmt = null;
                mediatype = "Profile";
                audiofmt = ".jpg";
                if (Environment.getExternalStorageState() == null || Environment.getExternalStorageState().equals(Environment.MEDIA_REMOVED)) {
                    storageDir = new File(Environment.getDataDirectory(), mediatype);
                } else {
                    storageDir = new File(Environment.getExternalStorageDirectory() + Common.STORAGE_PATH, mediatype);
                }
                if (!storageDir.exists() && !storageDir.mkdirs()) {
                    // For HTC Device                    storageDir = new File(Common.STORAGE_PATH, mediatype);
                    if (!storageDir.exists() && !storageDir.mkdirs()) {
                    }
                }
                File image = File.createTempFile(
                        Memberid,  /* prefix */                        audiofmt,         /* suffix */                        storageDir      /* directory */                );
                FileOutputStream f = new FileOutputStream(image);
                byte[] buffer = new byte[1024];
                int len1 = 0;
                while ((len1 = inputStream.read(buffer)) > 0) {
                    f.write(buffer, 0, len1);
                }
                f.close();
                resp=image.getAbsolutePath();                
               
                return resp;
            }
        } catch (Exception e) {
            Log.d("URLCONNECTIONERROR", e.toString());
            if (urlConnection != null) {
                urlConnection.disconnect();
            }
        } finally {
            if (urlConnection != null) {
                urlConnection.disconnect();
            }
        }
        return resp;
    }
}






 

Deleting files from a folder - android

Very simple delete the file from folder for particular format

File dir = new File(Environment.getExternalStorageDirectory() + "/Pictures/.Twogether/Videos");
        if (dir.isDirectory()) {
            String[] children = dir.list();
            for (int i = 0; i < children.length; i++) {
                if (new File(dir, children[i]).getAbsolutePath().endsWith("3gp2")) {
                    new File(dir, children[i]).delete();
                }
            }
        }

How to create custom font for Text View

Hi guys i am going to explain custom font for TextView

First We have create assets directory inside the main directory and then create fonts directory inside the assets main->assets->font->  then put the font file inside the font directory

Then create the below file inside any one package. The below file created in com.crm.common package

package com.crm.Common;

import android.content.Context;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.widget.TextView;

/** * Created by Ashok on 11/19/2015. */public class CustomReqularTextView extends TextView {
    public static Typeface FONT_NAME;


    public CustomReqularTextView(Context context) {
        super(context);
        if(FONT_NAME == null) FONT_NAME = Typeface.createFromAsset(context.getAssets(), "fonts/OpenSans-Regular_0.ttf");
        this.setTypeface(FONT_NAME);
    }
    public CustomReqularTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        if(FONT_NAME == null) FONT_NAME = Typeface.createFromAsset(context.getAssets(), "fonts/OpenSans-Regular_0.ttf");
        this.setTypeface(FONT_NAME);
    }
    public CustomReqularTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        if(FONT_NAME == null) FONT_NAME = Typeface.createFromAsset(context.getAssets(), "fonts/OpenSans-Regular_0.ttf");
        this.setTypeface(FONT_NAME);
    }
}

Then We have to use like

<com.crm.Common.CustomBoldTextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:id="@+id/compid"    android:text="@string/compname"    android:layout_gravity="center_horizontal"/>

Download file fast and then store SDCARD

Hi guys i am going to explain download file from server and then store in sdcard. it's very simple refer the below code.

package com.readcontact;

import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;


public class Downloadimage extends ActionBarActivity {

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

        new Thread(new Runnable() {
            @Override            public void run() {
                downloadFile("http://www.tivix.com/uploads/blog_pics/Android-logo.png", new File(Environment.getExternalStorageDirectory() + File.separator                        + "test.png"));
            }
        }).start();
    }

    private static void downloadFile(String url, File outputFile) {
        Log.i("ACT", "Path : " + outputFile.getAbsolutePath());
        Log.w("ASHOK MSG","Path : " + outputFile.getAbsolutePath());
        try {
            URL u = new URL(url);
            URLConnection conn = u.openConnection();
            int contentLength = conn.getContentLength();

            DataInputStream stream = new DataInputStream(u.openStream());

            byte[] buffer = new byte[contentLength];
            stream.readFully(buffer);
            stream.close();

            DataOutputStream fos = new DataOutputStream(new FileOutputStream(outputFile));
            fos.write(buffer);
            fos.flush();
            fos.close();
        } catch (FileNotFoundException e) {
            return; // swallow a 404        } catch (IOException e) {
            return; // swallow a 404        }
    }

    @Override    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_downloadimage, 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();

        //noinspection SimplifiableIfStatement        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

Get all phone contacts using android

hi guys i going to explain get mobile contacts from phone
 it's very simple

Get Name

cur.getString(cur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));

Get Phone number 

cur.getString(cur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

Get Phone email


cur.getString(cur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));

First We have to add below  permission in Adroidmanifast.xml

<uses-permission android:name="android.permission.READ_CONTACTS" />

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:paddingBottom="@dimen/activity_vertical_margin"    tools:context="com.readcontact.Contactlist"    android:orientation="vertical">
    <Button
        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/sendmail"        android:text="Send Me"        android:layout_gravity="left"/>

<ListView    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:id="@+id/contlist">
</ListView>

</LinearLayout>

mainactivity.java

package com.readcontact;

import android.content.ContentResolver;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.v7.app.ActionBarActivity;
import android.util.SparseBooleanArray;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;


public class Contactlist extends ActionBarActivity {
    ListView Conlist;
    private ArrayList<String> arrayList = new ArrayList<>();
    private  ArrayList<String> namelist = new ArrayList<>();
    Button SendMe;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_contactlist);

        Conlist = (ListView)findViewById(R.id.contlist);
        SendMe = (Button)findViewById(R.id.sendmail);


        ContentResolver cr = getContentResolver();
        Cursor cur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                null, null, null, null);

        if (cur.getCount()>0){
            while(cur.moveToNext()){
                String name = cur.getString(cur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
                arrayList.add(name);
            }
        }
        Conlist.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
       ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice,arrayList);
        Conlist.setAdapter(arrayAdapter);

        SendMe.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                SparseBooleanArray checkd = Conlist.getCheckedItemPositions();

                for (int i = 0; i < Conlist.getCount(); i++) {
                    if (checkd.get(i)) {
                        namelist.add(arrayList.get(i).toString());
                    }
                }

                String mystring = namelist.toString();
                Toast.makeText(getApplicationContext(), mystring, Toast.LENGTH_LONG).show();
                namelist.clear();
            }
        });

        
    }

    @Override    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_contactlist, 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();

        //noinspection SimplifiableIfStatement        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}









for more details 

http://www.coderzheaven.com/2011/06/13/get-all-details-from-contacts-in-android/

Call Java function from JavaScript over Android WebView

Hi guys Here I am going to explain how to call a java function from webview

          

Step 1)MainActivity .java

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

public class MainActivity extends Activity {
WebView webView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Activity MyActivity = this;
webView= (WebView) findViewById(R.id.webView);
getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
Window.PROGRESS_VISIBILITY_ON);
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {

MyActivity .setTitle("Loading...");
MyActivity .setProgress(progress * 100);

if (progress == 100)
MyActivity .setTitle("Android Dhina");
}
});
webView.setWebViewClient(new WebViewClient());
webView.addJavascriptInterface(new WebAppInterface(this), "Android");

webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("file:///android_asset/web.html");

}

public class WebAppInterface {

Context context;

WebAppInterface(Context c) {
context= c;
}

public void showToast(String toast) {
Toast.makeText(context, toast, Toast.LENGTH_SHORT).show();
}

}

}

Step 2)activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin">

    <WebView
        android:id="@+id/webview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</RelativeLayout>


Step 3)assets/web.html

 <!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width; user-scalable=0;" />
<title>Android Dhina</title>

<h1>Android Dhina Webview</h1>
</head>
<body>
<input type="button" value="Call Function"
onClick="showAndroidToast('Hello Dhina!')" />

<script language="javascript">
function showAndroidToast(toast) {
Android.showToast(toast);
 }
</script>

</body>
</html>

Marquee effect in android textView

Hi guys Here I am  going to explain how to set Marquee effect in Android Text View.
                                           

Step 1).Mainactivity.java

import android.app.Activity;
import android.os.Bundle;
import android.text.TextUtils.TruncateAt;
import android.widget.TextView;

public class MainActivity extends Activity {
private TextView textview;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textview= (TextView) this.findViewById(R.id.textview);
textview.setSelected(true);

textview.setEllipsize(TruncateAt.MARQUEE);
textview.setSingleLine(true);
}

}

Step 2)activity_main.xml

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <TextView
        android:id="@+id/textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        android:ellipsize="marquee"
        android:fadingEdge="horizontal"
        android:lines="1"
        android:marqueeRepeatLimit="marquee_forever"
        android:scrollHorizontally="true"
        android:text="***************Android Dhina Marquee  effect in textview ***************************** "
        android:textColor="#9bebe4" />

</RelativeLayout>