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July 30, 2016 12:38
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Save gaborvecsei/efac476384faefa6945cdc50c4fa0fe0 to your computer and use it in GitHub Desktop.
This is a simple code to create view animations (for value changes etc...). Exmaple: http://i.imgur.com/0dtTx9X.gif
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<!-- Example: http://i.imgur.com/0dtTx9X.gif --> | |
<?xml version="1.0" encoding="utf-8"?> | |
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" | |
xmlns:tools="http://schemas.android.com/tools" | |
android:layout_width="match_parent" | |
android:layout_height="match_parent" | |
android:paddingBottom="@dimen/activity_vertical_margin" | |
android:paddingLeft="@dimen/activity_horizontal_margin" | |
android:paddingRight="@dimen/activity_horizontal_margin" | |
android:paddingTop="@dimen/activity_vertical_margin" | |
android:orientation="vertical" | |
tools:context="com.tests.gabor.textanimation.MainActivity"> | |
<TextView | |
android:id="@+id/hello_world_text" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Hello World!" /> | |
<Button | |
android:id="@+id/animate_red_button" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Animate Red!"/> | |
<Button | |
android:id="@+id/animate_green_button" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Animate Green!"/> | |
</LinearLayout> |
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//Gabor Vecsei | |
//[email protected] | |
//Example: http://i.imgur.com/0dtTx9X.gif | |
import android.animation.ArgbEvaluator; | |
import android.animation.ObjectAnimator; | |
import android.graphics.Color; | |
import android.support.v7.app.AppCompatActivity; | |
import android.os.Bundle; | |
import android.view.View; | |
import android.widget.Button; | |
import android.widget.EditText; | |
import android.widget.TextView; | |
public class MainActivity extends AppCompatActivity { | |
TextView helloWorldText; | |
Button animateRedButton; | |
Button animateGreenButton; | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_main); | |
helloWorldText = (TextView) findViewById(R.id.hello_world_text); | |
animateRedButton = (Button) findViewById(R.id.animate_red_button); | |
animateGreenButton = (Button) findViewById(R.id.animate_green_button); | |
animateRedButton.setOnClickListener(new View.OnClickListener() { | |
@Override | |
public void onClick(View view) { | |
changeColor(helloWorldText, "backgroundColor", Color.WHITE, Color.RED, 800, 3); | |
} | |
}); | |
animateGreenButton.setOnClickListener(new View.OnClickListener() { | |
@Override | |
public void onClick(View view) { | |
changeColor(helloWorldText, "backgroundColor", Color.WHITE, Color.GREEN, 800, 3); | |
} | |
}); | |
} | |
private void changeColor(View view, String property, int startColor, int stopColor, int timeInMillis, int blinkingCount){ | |
ObjectAnimator anim = ObjectAnimator.ofInt(view, property, startColor, stopColor, startColor); | |
anim.setDuration(timeInMillis); | |
//Avoid blinking | |
anim.setEvaluator(new ArgbEvaluator()); | |
anim.setRepeatCount(blinkingCount); | |
anim.start(); | |
} | |
} |
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