简单的菜单弹框

来源：互联网发布：日本战国知乎编辑：程序博客网时间：2024/06/12 01:50

1. 先来个效果图

2. 在MainActivity 里面的代码

public class MainActivity extends AppCompatActivity {    private LinearLayout login;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Button button = (Button) findViewById(R.id.bt);        login = (LinearLayout) findViewById(R.id.ll_login);        button.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                showSwitch(login);            }        });    }

private void showSwitch(View parentView) {    LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);    View contentview = inflater.inflate(R.layout.popup_switch, null);    TextView tvSwitch = (TextView) contentview.findViewById(R.id.tv_switch);    TextView tvSignOut = (TextView) contentview.findViewById(R.id.tv_sign_out);    contentview.setFocusable(true); // 这个很重要    contentview.setFocusableInTouchMode(true);    final PopupWindow popupWindow = new PopupWindow(contentview, LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);    popupWindow.setFocusable(true);    popupWindow.setOutsideTouchable(false);    contentview.setOnKeyListener(new View.OnKeyListener() {        @Override        public boolean onKey(View v, int keyCode, KeyEvent event) {            if (keyCode == KeyEvent.KEYCODE_BACK) {                popupWindow.dismiss();                return true;            }            return false;        }    });    tvSwitch.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {            Intent intent =new Intent(getApplicationContext(),SecActivity.class);            startActivity(intent);            popupWindow.dismiss();        }    });    tvSignOut.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {            Intent intent =new Intent(getApplicationContext(),ThridActivity.class);            startActivity(intent);            popupWindow.dismiss();        }    });    popupWindow.showAsDropDown(parentView, 400,0); //在点击按钮的位置}

3. activity_main.xml 的代码

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.jgw.showpop.MainActivity">        <LinearLayout        android:layout_marginTop="50dp"        android:id="@+id/ll_login"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="vertical"        android:gravity="center"        >        <Button            android:id="@+id/bt"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="提交"            />    </LinearLayout></LinearLayout>

4. popup_switch.xml 的代码

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:background="@mipmap/icon_menu_off"    android:paddingTop="10dp"    android:orientation="vertical">        <TextView        android:id="@+id/tv_switch"        android:textSize="14sp"        android:textColor="#323232"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:drawableLeft="@mipmap/icon_switch"        android:drawablePadding="10dp"        android:gravity="center"        android:padding="15dp"        android:text="设置" />    <View android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:layout_width="match_parent"        android:layout_height="1px"        android:background="#dddddd" />    <TextView        android:id="@+id/tv_sign_out"        android:textSize="14sp"        android:textColor="#323232"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:drawableLeft="@mipmap/icon_sign_out"        android:drawablePadding="10dp"        android:gravity="left"        android:padding="15dp"        android:text="菜单" /></LinearLayout>

代码完成 , 仅供参考

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