Implementation Function Handler Android (show anything after a few second)

Hello world. Today its my second post, ya i wanna show you how to implementation function handler on the android programming. If you don't know about handler, handler is like function that you can use, if you want to show anything, with period. For example i wanna show snackbar or anything after 3 second. Lets do it.

Ahha, i've handler function like this.

private void handlerFunction(final View v){
        final Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                Snackbar.make(v, "Hi i am show after  3 second", 
                        Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        }, 3000);
    }

On this function, i just 3000 millisecond its mean 3 second waiting. And after that snackbar will show like this "Hi i am show after 3 second". Like this picture.

If you want to show anything, you put inside run function. Just it. Write comment bellow if still confuse about my code, or comment on my Github page. I hope this is can help you little bit. Lol. Thanks.

Github page.

Continue Reading

Create OnClick Function on The Android

Hello world. Today i wanna show you how to implementation onClick on the android programming. Basically onClick function can use for all widget in android. Something like Textview, Textfield, Button, etc. So on this post i will show you onClick just in Textview. Here we go.

This my basic layout, i call it fragment_one.xml.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="@dimen/activity_horizontal_margin_twice">

    <TextView
        android:id="@+id/tvOne"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16dp"
        android:layout_marginTop="@dimen/activity_vertical_margin"
        android:layout_marginLeft="@dimen/activity_horizontal_margin"
        android:text="@string/fragmentOne"/>

    <View
        android:id="@+id/vOne"
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/colorAccent"
        android:layout_marginTop="@dimen/activity_horizontal_margin"
        android:layout_below="@+id/tvOne"/>

    <TextView
        android:id="@+id/tvOnClick"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16dp"
        android:layout_below="@+id/vOne"
        android:layout_marginTop="@dimen/activity_vertical_margin"
        android:layout_marginLeft="@dimen/activity_horizontal_margin"
        android:text="@string/onClick"/>

    <View
        android:id="@+id/vTwo"
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/colorAccent"
        android:layout_marginTop="@dimen/activity_horizontal_margin"
        android:layout_below="@+id/tvOnClick"/>

</RelativeLayout>

and on this layout i've two textview that i will to implement click. And this is my function to implement my textview onClick.

private void onClick(View view){
        tvOne = (TextView) view.findViewById(R.id.tvOne);
        tvOnClick = (TextView) view.findViewById(R.id.tvOnClick);
        tvOne.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Snackbar.make(v, "Hi i am function onclick", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
        tvOnClick.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Snackbar.make(v, "Hi i am function onclick", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
    }

On this function i just declare my text view and call setOnClickListener . And then i put snack bar to show "Hi i am function onClick". It would be like this one.

You can write comment bellow or comment on the my Github page. And also you can download it on my Github page.

Github.

Continue Reading