This is a simple demo to do Slide to Unlock in Android.
Layout
<?xml version="1.0" encoding="utf-8"?><RelativeLayout 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:padding="20dp" tools:context="slide_unlock.coderzheaven.com.slidetounlockdemo.MainActivity"> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:gravity="center" android:text="Slide to unlock" android:textStyle="bold" /> <SeekBar android:id="@+id/seekbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:max="100" android:progress="0" android:progressDrawable="@android:color/transparent" android:thumb="@drawable/hand" /></RelativeLayout> |
Activity
package slide_unlock.coderzheaven.com.slidetounlockdemo;import android.os.Bundle;import android.support.v4.content.ContextCompat;import android.support.v7.app.AppCompatActivity;import android.widget.SeekBar;import android.widget.Toast;public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); SeekBar mSeekbar = (SeekBar) findViewById(R.id.seekbar); mSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { int alpha = (progress * (255 / 100)); seekBar.getThumb().setAlpha(255 - alpha); } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { if (seekBar.getProgress() < 90) { seekBar.setThumb(ContextCompat.getDrawable(MainActivity.this, R.drawable.hand)); seekBar.setProgress(0); } else { seekBar.setProgress(100); seekBar.getThumb().setAlpha(0); Toast.makeText(MainActivity.this, "Unlocked", Toast.LENGTH_LONG).show(); } } }); }} |