Android Codest

public class MarshMallowPermission { public static final int RECORD_PERMISSION_REQUEST_CODE = 1 ; public static final int EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE = 2 ; public static final int CAMERA_PERMISSION_REQUEST_CODE = 3 ; public static final int GPS_FINE_LOCATION_PERMISSION_REQUEST_CODE = 4 ; public static final int GPS_COARSE_LOCATION_PERMISSION_REQUEST_CODE = 5 ; public static final int PHONE_CALL_PERMISSION_REQUEST_CODE = 6 ; public static final int SEND_SMS_PERMISSION_REQUEST_CODE = 7 ; Activity activity ; public MarshMallowPermission(Activity activity) { this . activity = activity; } public boolean checkPermissionForRecord() { int result = ContextCompat. checkSelfPermission ( activity ,  Manifest.permission. RECORD_AUDIO ); return result == PackageManager. PERMISSION_GRANTED ; } public boolean checkPermissionForExternalStorage() { int result = ContextCompat. checkSelfPer...

public class MainActivity extends AppCompatActivity { WebView webView ; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout. activity_main ); webView = (WebView) findViewById(R.id. webView1 ); webView .getSettings().setJavaScriptEnabled( true ); WebSettings settings = webView .getSettings(); settings.setBuiltInZoomControls( true ); settings.setSupportZoom( true ); startWebViews("http:// google.co.in" ); } private void startWebViews(String url) { //Create new webview Client to show progress dialog    //When opening a url or click on link webView .setWebViewClient( new WebViewClient() { ProgressDialog progressDialog ; //If you will not use this method url links are opeen in  new brower not in webview     public boolean shouldOverrid...

Calculator App's Main Activity .java package com.nm.calc; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class MainActivity extends Activity implements OnClickListener { Button b1,b2,b3,b4,b5,b6,b7,b8,b9; Button b11,b12,b13,b14,b15,b16,b17,b18,b19; Button b21,b22,b23,b24,b25,b26,b27,b28,b29; EditText et1; double a,b,r,tmp,mem; char op; boolean dotcl=true,clear = true, first_move = true, opclick = true;     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);               et1 = (EditText)findViewById(R.id.editText1);             ...