实例路劲:AddWidget
控件里嵌入子控件,弹窗嵌入xml文件
主xml文件:
<?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:showIn="@layout/activity_main" tools:context="com.yyx.addwidget.MainActivity"> <ScrollView android:layout_width="match_parent" android:layout_height="wrap_content"> <LinearLayout android:id="@+id/add_linear" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" android:orientation="vertical"> </LinearLayout> </ScrollView> </android.support.constraint.ConstraintLayout>
java代码:
package com.yyx.addwidget; import android.graphics.Color; import android.graphics.drawable.ColorDrawable; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.Window; import android.widget.LinearLayout; import android.widget.Toast; public class MainActivity extends AppCompatActivity { private LinearLayout add_linear; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); add_linear = (LinearLayout) findViewById(R.id.add_linear); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Toast.makeText(MainActivity.this,"加控件",Toast.LENGTH_LONG).show(); addButton(); } }); } private void addButton(){ LayoutInflater inflater = getLayoutInflater(); final View viewUrl = inflater.inflate(R.layout.activity_main_button, null); LinearLayout.LayoutParams UrL = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT); viewUrl.setLayoutParams(UrL); add_linear.addView(viewUrl); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_settings) { Toast.makeText(MainActivity.this,"弹窗",Toast.LENGTH_LONG).show(); //弹出框,实现页面嵌套 LayoutInflater inflater = getLayoutInflater(); View layout = inflater.inflate(R.layout.activity_main_button, null); AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); final AlertDialog dialog = builder.create(); dialog.setView(layout); Window window = dialog.getWindow(); window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); dialog.show(); return true; } return super.onOptionsItemSelected(item); } }
activity_main_button.xml 文件:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="列队" android:layout_gravity="center_horizontal"/> </LinearLayout>