hzuapps#5 hzuapps#1020 实验五

soft1614080902442/app/java/soft1614080902442main4Activity.java

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+package edu.hzuapps.androidlabs.soft1614080902442;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.util.Log;
+import android.widget.Toast;
+import android.widget.EditText;
+public class soft1614080902442main4Activity extends AppCompatActivity {
+
+            String hms;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_soft1614080902442main4);
+        setTitle("睡眠大师");
+
+    }
+
+                private void save(String hms) {
+                            SharedPreferences.Editor editor = getSharedPreferences("data", MODE_PRIVATE).edit();//获取对象，并且命名文件的名称
+                            editor.putString("hms", hms);  //保存数据
+                            editor.commit();
+                            editor.clear();
+                            Toast.makeText(soft1614080902442main4Activity.this, "保存音乐成功", Toast.LENGTH_LONG).show();
+                        }
+                private void readPrefs() {
+                        SharedPreferences prefs = getSharedPreferences("data", MODE_PRIVATE); //获取对象，读取data文件
+                        String hms = prefs.getString("hms", ""); //获取文件中的数据
+                        Toast.makeText(soft1614080902442main4Activity.this, "正在播放音乐："+hms, Toast.LENGTH_LONG).show();
+                    }
+
+                public void onClick(View view) {          //按钮的点击事件
+                        switch (view.getId()) {
+                                case R.id.xieru:
+                                        EditText ethour = (EditText)findViewById(R.id.hour);
+                                        hms = ethour.getText().toString();
+                                        save(hms);    //调用保存方法，将输入的姓名和年龄保存
+                                        break;
+                                case R.id.duqu:
+                                        readPrefs();   //调用读取方法，将保存的文件中的姓名和年龄显示出来
+                                        break;
+                }
+
+                }
+    }

soft1614080902442/app/res/layout/activity_soft1614080902442main4.xml

@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".soft1614080902442main4Activity">
+
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+
+
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center_vertical">
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="60dp"
+
+        android:layout_alignParentTop="true"
+        android:background="#fff">
+
+        <EditText
+            android:id="@+id/naoling"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+
+
+            android:layout_centerVertical="true"
+            android:hint="搜索助眠音乐" />
+
+
+        <ImageButton
+            android:id="@+id/查询"
+            android:layout_width="25dp"
+            android:layout_height="25dp"
+            android:layout_alignParentRight="true"
+            android:layout_centerVertical="true"
+            android:layout_marginRight="15dp"
+            android:background="@drawable/search" />
+
+    </RelativeLayout>
+
+
+    <EditText
+        android:id="@+id/hour"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+
+
+        android:layout_centerVertical="true"
+        android:hint="查找音乐编号" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+
+        android:layout_alignParentBottom="true"
+
+        android:layout_marginBottom="170dp"
+        android:orientation="horizontal">
+
+        <Button
+            android:id="@+id/xieru"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:onClick="onClick"
+            android:text="保存该音乐"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/duqu"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:onClick="onClick"
+            android:text="播放该音乐"
+            android:textSize="20sp" />
+
+
+    </LinearLayout>
+
+
+</RelativeLayout>
+