first commit

前端/关于界面的一些练习/ToolbarActivity.java

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+package com.example.materialtest;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.Toast;
+
+public class ToolbarActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_toolbar);
+
+        Toolbar toolbar=(Toolbar)findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.toolbar,menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()){
+            case R.id.backup:
+                Toast.makeText(this,"You clicked Backup",Toast.LENGTH_SHORT).show();
+                break;
+            case R.id.delete:
+                Toast.makeText(this,"You clicked Delete",Toast.LENGTH_SHORT).show();
+                break;
+            case R.id.settings:
+                Toast.makeText(this,"You clicked Settings",Toast.LENGTH_SHORT).show();
+                break;
+            default:
+        }
+        return  true;
+    }
+}

前端/关于界面的一些练习/activity_floatingbutton.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v4.widget.DrawerLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:id="@+id/drawer_layout">
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <android.support.v7.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            android:theme="@style/Base.ThemeOverlay.AppCompat.Dark.ActionBar"
+            app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
+        </android.support.v7.widget.Toolbar>
+
+        <FloatingActonBar/>
+    </FrameLayout>
+
+</android.support.v4.widget.DrawerLayout>

前端/关于界面的一些练习/activity_toolbar.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <android.support.v7.widget.Toolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="?attr/actionBarSize"
+        android:background="?attr/colorPrimary"
+        android:theme="@style/Base.ThemeOverlay.AppCompat.Dark.ActionBar"
+        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
+        ></android.support.v7.widget.Toolbar>
+</FrameLayout>

前端/关于界面的一些练习/menu/toolbar.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/backup"
+        android:icon="@mipmap/ic_backup"
+        android:title="Backup"
+        app:showAsAction="always"
+        ></item>
+
+    <item
+        android:id="@+id/delete"
+        android:icon="@mipmap/ic_delete"
+        android:title="Delete"
+        app:showAsAction="ifRoom"
+        ></item>
+
+    <item
+        android:id="@+id/settings"
+        android:icon="@mipmap/ic_settings"
+        android:title="Settings"
+        app:showAsAction="never"
+        ></item>
+</menu>