Alert Dialog Box

Alert Dialog Box

Android AlertDialog can be used to display the dialog message with OK and Cancel buttons. It can be used to interrupt and ask the user about his/her choice to continue or discontinue.

Android AlertDialog is composed of three regions: title, content area and action buttons.

Android AlertDialog is the subclass of Dialog class.

e.g

  

    @Override  

protected void onCreate(Bundle savedInstanceState) {  

        super.onCreate(savedInstanceState);  

                  setContentView(R.layout.activity_main);  

   AlertDialog.Builder builder = new AlertDialog.Builder(this); //this will build a alert dialog 

        builder.setMessage("Do you want to close this application ?")   //this will show the msg on alert dialog

            .setCancelable(false)    //we cancel the alertbox

            .setPositiveButton("Yes", new DialogInterface.OnClickListener() {  

                public void onClick(DialogInterface dialog, int id) {  

                finish();                        //what will happen if we click on YES, define in this

                }  

            })  

            .setNegativeButton("No", new DialogInterface.OnClickListener() {  

                public void onClick(DialogInterface dialog, int id) {  

                //  Action for 'NO' Button  

                dialog.cancel();             // what will happen if we click on NO, define in this

             }  

            });  

  

        //Creating dialog box  

        AlertDialog alert = builder.create();  

        //Setting the title manually  

        alert.setTitle("AlertDialogExample");  

        alert.show();  

}

   

Convert Multiple Date Format by Single Method #android #java #date

Create a method in a Global Class From where you can access this method in every class in Android(Java). 

public static String convertDateFormat(String inputFormat, String outPutFormat) {

List<SimpleDateFormat> knownPatterns = new ArrayList<SimpleDateFormat>();
knownPatterns.add(new SimpleDateFormat("dd/MM/yyyy"));
knownPatterns.add(new SimpleDateFormat("yyyy-MM-dd"));
knownPatterns.add(new SimpleDateFormat("yyyy-MM-dd HH:MM:SS"));
knownPatterns.add(new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"));
DateFormat outputFormat = new SimpleDateFormat(outPutFormat);
Date date = null;
for (int i = 0; i < knownPatterns.size(); i++) {
try {
date = knownPatterns.get(i).parse(inputFormat);
} catch (ParseException e) {
e.printStackTrace();
}
}
return outputFormat.format(date);
}


As I have Created method convertDateFormat in Java class Utility.java as shown above.

Now Call this method in the main class where you want to format date

Utility.convertDateFormat(userProfile.getDateOfBirth(), "dd/MM/yyyy")

Now, here  Utility is java class where i have made method and i am calling that method in class where i want to convert Date Format.

Note:-where (userProfile.getDateOfBirth()) is input date which we want to convert and ( "dd/MM/yyyy") is output format date which you can give any format which is shown in method above.for another format which is not in method you can add that format in method.

Common Hide Keyboard in an application

public static void hideKeyboard(Context context) {
        try {
            InputMethodManager inputManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
            inputManager.hideSoftInputFromWindow(((Activity) context).getCurrentFocus().getWindowToken(), 0);
        } catch (Exception e) {
            Log.e(TAG, "Sigh, can't even hide keyboard " + e.getMessage());
        }
    }

Sending data from one activity to other using Intent

To send data from activity one


                Intent intent=new Intent(this,nextactivity.class);
                intent.putExtra("key ",value);
                context.startActivity(intent);

 To receive data in activity two

Intent intent=getIntent().getextras();

String s =intent.getstring("key provided in class one");

Showing pdf in a webview without downloading

import android.app.DownloadManager;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.renderscript.Sampler;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.text.Html;
import android.view.ViewGroup;
import android.webkit.DownloadListener;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import com.amazonaws.Request;

import javax.security.auth.callback.Callback;

public class WebViewActivity extends AppCompatActivity {
    String url;
    WebView webView;
    ProgressDialog progressBar;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.webview_pdf);
        url = getIntent().getStringExtra("url");
        webView = findViewById(R.id.webViewpdf);
        WebSettings webSettings = webView.getSettings();
        webSettings.setJavaScriptEnabled(true);
        progressBar=ProgressDialog.show(this,"","loading");

//"https://docs.google.com/gview?embedded=true&url="  this is the online google viewer

        webView.loadUrl("https://docs.google.com/gview?embedded=true&url=" + url);


        webView.setWebViewClient(new WebViewClient() {

// this is used for showing the progress until the page stops loading
            public void onPageFinished(WebView view, String url) {
                if (progressBar.isShowing()) {
                    progressBar.dismiss();
                }
            }
        });


    }
}

Round image corners at runtime using Glide #android #Glide

Round image corners at runtime using Glide library

In this post, we will check how to make Image corners round at runtime.

               

 RequestOptions requestOptions = new RequestOptions();

   requestOptions = requestOptions.transforms(new CenterCrop(),newRoundedCornersTransformation(39,0,RoundedCornersTransformation.CornerType.TOP_RIGHT));

              

  Glide.with(this)

                        .load(userData.getCoverpicture())

                        .apply(requestOptions)

                        .into(coverpic);

Sending data from one activity to other using bundle

Send data from  Activity

Intent intent =new Intent(this,nextactvitiy.class);
Bundle bundle=new Bundle();
bundle.putString("key",value);
bundle.putString("another key",another value);
intent.putExtras(bundle);
startactivity(intent);


Get data in another Activity

Bundle bundle=getIntent().getExtras();
String s =bundle.getString("key");
String s2=bundle.getString("key2");