Set Layout Parameters, Scale Type, background for ImageView : ImageView « UI « Android






  1. Android
  2. UI
  3. ImageView

Set Layout Parameters, Scale Type, background for ImageView

  

package app.test;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.Gallery;
import android.widget.Gallery.LayoutParams;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.ViewSwitcher;

public class Test extends Activity implements
    AdapterView.OnItemSelectedListener, ViewSwitcher.ViewFactory {
  CheckBox plain_cb;
  CheckBox serif_cb;
  CheckBox italic_cb;
  CheckBox bold_cb;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);

    setContentView(R.layout.main);
    setTitle("ImageShowActivity");

    mSwitcher = (ImageSwitcher) findViewById(R.id.switcher);
    mSwitcher.setFactory(this);
    mSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
        android.R.anim.fade_in));
    mSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
        android.R.anim.fade_out));

    Gallery g = (Gallery) findViewById(R.id.gallery);
    g.setAdapter(new ImageAdapter(this));
    g.setOnItemSelectedListener(this);
  }

  public void onItemSelected(AdapterView parent, View v, int position, long id) {
    mSwitcher.setImageResource(mImageIds[position]);
  }

  public void onNothingSelected(AdapterView parent) {
  }

  public View makeView() {
    ImageView i = new ImageView(this);
    i.setBackgroundColor(0xFF000000);
    i.setScaleType(ImageView.ScaleType.FIT_CENTER);
    i.setLayoutParams(new ImageSwitcher.LayoutParams(
        LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
    return i;
  }

  private ImageSwitcher mSwitcher;

  public class ImageAdapter extends BaseAdapter {
    public ImageAdapter(Context c) {
      mContext = c;
    }

    public int getCount() {
      return mThumbIds.length;
    }

    public Object getItem(int position) {
      return position;
    }

    public long getItemId(int position) {
      return position;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
      ImageView i = new ImageView(mContext);

      i.setImageResource(mThumbIds[position]);
      i.setAdjustViewBounds(true);
      i.setLayoutParams(new Gallery.LayoutParams(
          LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
      i.setBackgroundResource(R.drawable.icon);
      return i;
    }

    private Context mContext;
  }

  private Integer[] mThumbIds = { R.drawable.icon, R.drawable.icon, };
  private Integer[] mImageIds = { R.drawable.icon, R.drawable.icon };
}

//main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
       xmlns:android="http://schemas.android.com/apk/res/android"
       android:layout_width="fill_parent"
       android:layout_height="fill_parent">
       
       <ImageSwitcher 
       android:id="@+id/switcher"
              android:layout_width="fill_parent" 
              android:layout_height="fill_parent"
              android:layout_alignParentTop="true"
              android:layout_alignParentLeft="true" />
              
       <Gallery android:id="@+id/gallery" 
       android:background="#55000000"
              android:layout_width="fill_parent" 
              android:layout_height="60dp"
              android:layout_alignParentBottom="true"
              android:layout_alignParentLeft="true"
              android:gravity="center_vertical" 
              android:spacing="16dp" />
</RelativeLayout>








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