MenuPopup.java

package razerdp.demo.popup;

import android.content.Context;
import android.view.Gravity;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.DecelerateInterpolator;
import android.widget.TextView;

import razerdp.basepopup.BasePopupWindow;
import razerdp.basepopup.R;
import razerdp.demo.utils.ToastUtils;

/**
 * Created by 大灯泡 on 2016/1/22.
 * 菜单。
 */
public class MenuPopup extends BasePopupWindow implements View.OnClickListener {

    private TextView tx1;
    private TextView tx2;
    private TextView tx3;


    public MenuPopup(Context context) {
        super(context);
        findViewById(R.id.tx_1).setOnClickListener(this);
        findViewById(R.id.tx_2).setOnClickListener(this);
        findViewById(R.id.tx_3).setOnClickListener(this);
        setAlignBackground(false);
        setPopupGravity(Gravity.BOTTOM | Gravity.LEFT);
    }

    @Override
    protected Animation onCreateShowAnimation() {
        AnimationSet set = new AnimationSet(true);
        set.setInterpolator(new DecelerateInterpolator());
        set.addAnimation(getScaleAnimation(0, 1, 0, 1, Animation.RELATIVE_TO_SELF, 1, Animation.RELATIVE_TO_SELF, 0));
        set.addAnimation(getDefaultAlphaAnimation());
        return set;
    }

    @Override
    protected Animation onCreateDismissAnimation() {
        AnimationSet set = new AnimationSet(true);
        set.setInterpolator(new DecelerateInterpolator());
        set.addAnimation(getScaleAnimation(1, 0, 1, 0, Animation.RELATIVE_TO_SELF, 1, Animation.RELATIVE_TO_SELF, 0));
        set.addAnimation(getDefaultAlphaAnimation(false));
        return set;
    }

    @Override
    public void showPopupWindow(View v) {
        setOffsetX(v.getWidth() / 2);
        super.showPopupWindow(v);
    }


    @Override
    public View onCreateContentView() {
        return createPopupById(R.layout.popup_menu);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.tx_1:
                ToastUtils.ToastMessage(getContext(), "click tx_1");
                break;
            case R.id.tx_2:
                ToastUtils.ToastMessage(getContext(), "click tx_2");
                break;
            case R.id.tx_3:
                ToastUtils.ToastMessage(getContext(), "click tx_3");
                break;
            default:
                break;

        }

    }
}