安卓PopupWindows的使用

• 新建一个PopupWindwos的基本类

public class MoreCompanyPopupWindows extends PopupWindow {

    private Context context;
    private View parent;
    private int yStart;
    List<CompanyInfo> mDatas;
    EditText et_company_code;
//构造函数接收传来的坐标以及数据
public MoreCompanyPopupWindows(Context context, View parent, int yStart, List<CompanyInfo> mDatas, EditText editText) {
        this.context = context;
        this.parent = parent;
        this.yStart = yStart;
        this.mDatas = mDatas;
        this.et_company_code = editText;
        initView();
    }

    private void initView() {
        View view = View.inflate(context, R.layout.activity_login_item_more, null);
        Resources resources = context.getResources();
        DisplayMetrics displayMetrics = resources.getDisplayMetrics();
        setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
        //设置弹出view的高度
        setHeight(displayMetrics.heightPixels*7/8);
        setBackgroundDrawable(new BitmapDrawable());
        setFocusable(true);
        //设置弹出收回的view动画，此处设置的为滑入滑出
        setAnimationStyle(R.style.anim_pop_bottomber);
        setOutsideTouchable(true);
        setContentView(view);
        showAtLocation(parent, Gravity.BOTTOM, 0, DensityUtil.dip2px(context, yStart));
        update();

        ImageView img_close = view.findViewById(R.id.close);
        img_close.setOnClickListener(new CloseOnClickListener());

        RecyclerView mRecyclerView = view.findViewById(R.id.data_company_more);
        //データバインディング
        LoginMoreAdapter loginMoreAdapter = new LoginMoreAdapter(context, mDatas, et_company_code,this);
        mRecyclerView.setAdapter(loginMoreAdapter);
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false);
        linearLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
        linearLayoutManager.setAutoMeasureEnabled(true);
        mRecyclerView.setLayoutManager(linearLayoutManager);
        //行ごとにロゴを表示する
        mRecyclerView.setLayoutManager(new GridLayoutManager(context, 4));
    }

    /**
     * 終了
     */
    private class CloseOnClickListener implements View.OnClickListener {
        @Override
        public void onClick(View v) {
            dismiss();
        }
    }

}

• 滑入滑出动画

    <style name="anim_pop_bottomber">
        <item name="android:windowEnterAnimation">@anim/anim_enter</item>
        <item name="android:windowExitAnimation">@anim/anim_exit</item>
    </style>

• anim_enter 滑入动画

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="300"
        android:fromYDelta="100%p"
        android:toYDelta="0"/>
</set>

• anim_exit滑出动画

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="300"
        android:fromYDelta="0"
        android:toYDelta="100%p"/>
</set>

• 调用

  productsMoreCompanyPopupWindows = new MoreCompanyPopupWindows(this, see_more, 0, mDatas, et_company_code);