Stepper
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package com.material.components.activity.article;
import android.app.Dialog;
import android.content.Context;
import android.graphics.PorterDuff;
import android.os.Bundle;
import androidx.viewpager.widget.PagerAdapter;
import androidx.viewpager.widget.ViewPager;
import androidx.appcompat.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.material.components.R;
import com.material.components.utils.Tools;
public class ArticleStepper extends AppCompatActivity {
private static final int MAX_STEP = 4;
private ViewPager viewPager;
private MyViewPagerAdapter myViewPagerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_article_stepper);
// adding bottom dots
bottomProgressDots(0);
initComponent();
Tools.setSystemBarColor(this, R.color.grey_5);
Tools.setSystemBarLight(this);
}
private void bottomProgressDots(int current_index) {
LinearLayout dotsLayout = (LinearLayout) findViewById(R.id.layoutDots);
ImageView[] dots = new ImageView[MAX_STEP];
dotsLayout.removeAllViews();
for (int i = 0; i < dots.length; i++) {
dots[i] = new ImageView(this);
int width_height = 10;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(new ViewGroup.LayoutParams(width_height, width_height));
params.setMargins(10, 10, 10, 10);
dots[i].setLayoutParams(params);
dots[i].setImageResource(R.drawable.shape_circle);
dots[i].setColorFilter(getResources().getColor(R.color.grey_20), PorterDuff.Mode.SRC_IN);
dotsLayout.addView(dots[i]);
}
if (dots.length > 0) {
dots[current_index].setImageResource(R.drawable.shape_circle);
dots[current_index].setColorFilter(getResources().getColor(R.color.grey_80), PorterDuff.Mode.SRC_IN);
}
}
private void initComponent() {
viewPager = (ViewPager) findViewById(R.id.view_pager);
myViewPagerAdapter = new MyViewPagerAdapter();
viewPager.setAdapter(myViewPagerAdapter);
viewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
super.onPageSelected(position);
bottomProgressDots(position);
}
});
((ImageButton) findViewById(R.id.bt_comments)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showCommentsDialog();
}
});
((ImageButton) findViewById(R.id.bt_back)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onBackPressed();
}
});
}
private void showCommentsDialog() {
final Dialog dialog = new Dialog(this, R.style.BaseTheme);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); // before
Tools.setSystemBarColorDialog(this, dialog, R.color.grey_5);
Tools.setSystemBarLightDialog(dialog);
dialog.setContentView(R.layout.dialog_article_comments);
dialog.setCancelable(true);
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(dialog.getWindow().getAttributes());
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.MATCH_PARENT;
((ImageButton) dialog.findViewById(R.id.bt_close)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog.dismiss();
}
});
dialog.show();
dialog.getWindow().setAttributes(lp);
}
/**
* View pager adapter
*/
public class MyViewPagerAdapter extends PagerAdapter {
private LayoutInflater layoutInflater;
public MyViewPagerAdapter() {
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.item_article_stepper, container, false);
TextView text = (TextView) view.findViewById(R.id.text);
if (position > 0) {
text.setVisibility(View.VISIBLE);
(view.findViewById(R.id.lyt_article_cover)).setVisibility(View.GONE);
if (position % 2 == 0) {
text.setText(R.string.long_lorem_ipsum_2);
} else {
text.setText(R.string.long_lorem_ipsum);
}
}
container.addView(view);
return view;
}
@Override
public int getCount() {
return MAX_STEP;
}
@Override
public boolean isViewFromObject(View view, Object obj) {
return view == obj;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
View view = (View) object;
container.removeView(view);
}
}
}