Ad baner without GoogleAdMobAdsSdkAndroid-6.4.1 Android example

AD MOB

First: AdView is in XML file


<com.google.android.gms.ads.AdView
    xmlns:ads="//schemas.android.com/apk/res-auto"
    android:id="@+id/adView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    ads:adUnitId="MY_AD_UNIT_ID"
    ads:adSize="BANNER"/>

// onResume
AdView adView = (AdView)this.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
    .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
    .addTestDevice("TEST_DEVICE_ID")
    .build();
adView.loadAd(adRequest);

Second: Using AdView in Fragment with LinearLayout
Resolve error in ADT Graphical layout editor:
The following classes could not be instantiated:
- com.google.android.gms.ads.AdView


// layout in xml file
    <LinearLayout
        android:id="@+id/layout"
              android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

// java class with fragment in Fragment class or in Activity class
private static AdView adView;
        @Override
		public void onResume(){  
                super.onResume();
                 try {
                	 // in xml is empty layout
					adView = new AdView(getActivity());
					adView.setAdUnitId("ca-app-pub-626/638103xxxxxxx");
					adView.setAdSize(AdSize.BANNER);  
					
                	                LinearLayout layout = (LinearLayout)getView() .findViewById(R.id.layout);
					layout.addView(adView);
					
					AdRequest adRequest = new AdRequest.Builder().build();   
					adView.loadAd(adRequest);

				} catch (Exception e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
        }

More about:
https://developers.google.com/mobile-ads-sdk/docs/admob/android/play-migration?hl=it

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AlertDialog - MessageBox - Alert - Toast - Android sample | alertdialog-like-messagebox-android-sample

AlertDialog like MessageBox by WinApi:
If error: Unable to add window -- token null is not for an application
try change get Context.


// you can put this text into some function body or case in switch statement
                new AlertDialog.Builder(this)
                    .setMessage("Hello boys!!!")
                    .setPositiveButton("OK", null)
                    .show();


Context context = getApplicationContext();
	AlertDialog.Builder builder = new AlertDialog.Builder(context);
	builder.setTitle("Select font size");
	final CharSequence[] chsSize= { "Small", "Medium", "Large"};
	builder.setSingleChoiceItems(chsSize, 0 /*sel.item*/, 
	new DialogInterface.OnClickListener() {
 	    public void onClick(DialogInterface dialog, int item) {
	    		 Toast.makeText(context, "Hello from dialog!!!", Toast.LENGTH_SHORT).show();
	        dialog.dismiss();
	    }
	});
	AlertDialog alert = builder.create();
	alert.show();

RadioButton RadioGroup Java Android example | radiobutton-radiogroup-android-example

RadioButton RadioGroup Android example source code for Android developer
Example for *.xml files


       <RadioGroup android:id="@+id/idRadio_group"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20dp"
            android:orientation="vertical">

            <RadioButton android:id="@+id/idRadio_1"
                android:text="@string/textLabel_1"/>
            <RadioButton android:id="@+id/idRadio_2"
                android:text="@string/textLabel_2"/>
            <RadioButton android:id="@+id/idRadio_3"
                android:text="@string/textLabel_3"/>

        </RadioGroup>

Example for *.java files


// import
import android.widget.RadioGroup;
// get handle of RadioGroup
RadioGroup  mRadioGroup = (RadioGroup) findViewById(R.id.idRadio_group);

// which RadioButton is selected for example in some function body
         int nUnits = 10; // decimetry
    	 int nIdRadio = mRadioGroup.getCheckedRadioButtonId();
    			if(nIdRadio == R.id.idRadio_1) nUnits = 1; // metr
    			else if(nIdRadio == R.id.idRadio_2) nUnits = 10; // decimetr
    			else if(nIdRadio == R.id.idRadio_3) nUnits = 100; // cm
    			else if(nIdRadio == R.id.idRadio_4) nUnits = 1000; // mm


// listener for RadioGroup Java Android example
       mRadioGroup.setOnCheckedChangeListener(
                new RadioGroup.OnCheckedChangeListener() {
                    public void onCheckedChanged(RadioGroup group,
                            int checkedId) {
                        Log.v("Selected", "New radio item selected: " + checkedId);
                        recordNewUIState();
                    }
                });

Show keyboard in WebView Android example | webview-keyboard

Show keyboard if WebView input have focus Android apps development example source code.


WebView webview;

//in onCreate

	webview = (WebView) findViewById(R.id.idWebviewPda);
	webview.getSettings().setJavaScriptEnabled(true);
	webview.loadUrl("//android.okhelp.cz");
	
	webview.requestFocus(View.FOCUS_DOWN);
    webview.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                case MotionEvent.ACTION_UP:
                    if (!v.hasFocus()) {
                        v.requestFocus();
                    }
                    break;
            }
            return false;
        }
    });

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