Android Concept

Monday, March 30, 2015

How to write style to error text of EditText in android?

int ecolor = R.color.black; String estring = "Please enter a valid email address";

ForegroundColorSpan fgcspan = new ForegroundColorSpan(ecolor);
SpannableStringBuilder ssbuilder = new SpannableStringBuilder(estring);
ssbuilder.setSpan(fgcspan, 0, estring.length(), 0);

edtEmail.requestFocus();
edtEmail.setError(ssbuilder);

Friday, February 13, 2015

Current local time in UTC

     try {
           Calendar calendar = Calendar.getInstance();
           int month = calendar.getTime().getMonth() + 1;
           String timeStampToMatch = calendar.getTime().getDate() + "-"
                   + month + "-" + calendar.get(Calendar.YEAR) + " "
                   + "01:01 pm";

           Log.i("======>", timeStampToMatch);

           DateFormat dateFormat = new SimpleDateFormat("d-M-yyyy H:m");

           Date date = dateFormat.parse(timeStampToMatch);
           dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
           Log.i("======>", dateFormat.format(date));

       } catch (ParseException e) {
           e.printStackTrace();
       }

Using common Layout and its event in all activities

ViewGroup vg = (ViewGroup) findViewById(R.id.lldata);
ViewGroup.inflate(getApplicationContext(), R.layout.listwitter, vg);

Tuesday, September 2, 2014

WebView Background Color (Transparent)

WebView webViewData = (WebView) findViewById(R.id.webView1);

webView1.setBackgroundColor(0x00000000);

WebView With HTML Script Demo

Ø Create MainActivity.java class in src/package.

MainActivity.java

import android.annotation.SuppressLint;

import android.app.Activity;

import android.app.ProgressDialog;

import android.os.Bundle;

import android.webkit.WebView;

import android.webkit.WebViewClient;

public class MainActivity extends Activity {

private WebView webView1;

private ProgressDialog pd;

@SuppressLint("SetJavaScriptEnabled")

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

pd = ProgressDialog.show(this, "", "Loading...", true);

webView1 = (WebView) findViewById(R.id.webView1);

webView1.getSettings().setJavaScriptEnabled(true);

webView1.getSettings().setSupportZoom(true);

webView1.getSettings().setBuiltInZoomControls(true);

webView1.setWebViewClient(new WebViewClient() {

@Override

public void onPageFinished(WebView view, String url) {

if (pd.isShowing() && pd != null) {

pd.dismiss();

}

});

webView1.loadUrl("file:///android_asset/test.html");

}

Ø Create main.xml in res/layout.

main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >

<WebView

android:id="@+id/webView1"

android:layout_width="match_parent"

android:layout_height="match_parent" />

</LinearLayout>

Ø Create test.html in assets.

test.html

<head>

<title>Internal Script</title>

</head>

<body>

document.write("Hello Javascript!")

</script>

</body>

WebView With Loading Demo (WebViewClient)

Ø Create MainActivity.java class in src/package.

MainActivity.java

import android.annotation.SuppressLint;

import android.app.Activity;

import android.app.ProgressDialog;

import android.os.Bundle;

import android.webkit.WebView;

import android.webkit.WebViewClient;

public class MainActivity extends Activity {

private WebView webView1;

private ProgressDialog pd;

@SuppressLint("SetJavaScriptEnabled")

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

pd = ProgressDialog.show(this, "", "Loading...", true);

webView1 = (WebView) findViewById(R.id.webView1);

webView1.getSettings().setJavaScriptEnabled(true);

webView1.getSettings().setSupportZoom(true);

webView1.getSettings().setBuiltInZoomControls(true);

webView1.setWebViewClient(new WebViewClient() {

@Override

public void onPageFinished(WebView view, String url) {

if (pd.isShowing() && pd != null) {

pd.dismiss();

}

});

webView1.loadUrl("https://www.google.co.in/");

}

Ø Create main.xml in res/layout.

main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >

<WebView

android:id="@+id/webView1"

android:layout_width="match_parent"

android:layout_height="match_parent" />

</LinearLayout>

Ø Add Permission in AndroidManifest.xml.

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

WebView Demo

Ø Create MainActivity.java class in src/package.

MainActivity.java

import android.app.Activity;

import android.os.Bundle;

import android.webkit.WebView;

public class MainActivity extends Activity {

private WebView webView1;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

webView1 = (WebView) findViewById(R.id.webView1);

webView1.loadUrl("https://www.google.co.in/");

}

Ø Create main.xml in res/layout.

main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >

<WebView

android:id="@+id/webView1"

android:layout_width="match_parent"

android:layout_height="match_parent" />

</LinearLayout>

Ø Add Permission in AndroidManifest.xml.

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