PositioningActivity.java
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package fr.utbm.lo53.p2017.positionningapp;
import android.os.Bundle;
import android.support.constraint.ConstraintLayout;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.ImageView;
public class PositioningActivity extends BaseActivity {
private static final String TAG = "PositioningActivity";
private ConstraintLayout start_layout;
private Animation hideAnimation;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_positioning);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
start_layout = (ConstraintLayout) findViewById(R.id.start_layout);
hideAnimation = createFadeOutAndHideAnimation();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
MenuItem item = menu.findItem(R.id.open_calibration_activity);
item.setVisible(true);
return true;
}
public void startLocating(View v) {
start_layout.startAnimation(hideAnimation);
}
private Animation createFadeOutAndHideAnimation() {
ImageView hiding_image = (ImageView) findViewById(R.id.hiding_image);
final float initial_alpha = hiding_image.getImageAlpha() / 255;
Animation animation = new AlphaAnimation(initial_alpha, 0);
animation.setInterpolator(new AccelerateInterpolator());
animation.setDuration(1000);
animation.setAnimationListener(new Animation.AnimationListener() {
public void onAnimationEnd(Animation animation) {
start_layout.setVisibility(View.GONE);
}
public void onAnimationRepeat(Animation animation) {}
public void onAnimationStart(Animation animation) {}
});
return animation;
}
}