Android——AutoCompleteTextView、Spinner和訊息提示

標籤：

layout檔案：

 1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3     xmlns:tools="http://schemas.android.com/tools" 4     android:layout_width="match_parent" 5     android:layout_height="match_parent" 6     android:paddingBottom="@dimen/activity_vertical_margin" 7     android:paddingLeft="@dimen/activity_horizontal_margin" 8     android:paddingRight="@dimen/activity_horizontal_margin" 9     android:paddingTop="@dimen/activity_vertical_margin"10     tools:context="com.hanqi.testapp2.TestActivity10"11     android:orientation="vertical">12 13     <AutoCompleteTextView14         android:layout_width="match_parent"15         android:layout_height="wrap_content"16         android:hint="請輸入"17         android:id="@+id/at_1"18         android:completionThreshold="1"/>19     <LinearLayout20         android:layout_width="match_parent"21         android:layout_height="wrap_content">22         <TextView23             android:layout_width="wrap_content"24             android:layout_height="wrap_content"25             android:text="學曆："/>26         <Spinner27             android:layout_width="0dp"28             android:layout_weight="1"29             android:layout_height="wrap_content"30             android:id="@+id/sp_1"></Spinner>31     </LinearLayout>32 <Button33     android:layout_width="match_parent"34     android:layout_height="wrap_content"35     android:text="發送狀態列訊息"36     android:onClick="bt_onClick"/>37 </LinearLayout>

java類：

 1 package com.hanqi.testapp2; 2  3 import android.app.Notification; 4 import android.app.NotificationManager; 5 import android.app.PendingIntent; 6 import android.content.Intent; 7 import android.support.v7.app.AppCompatActivity; 8 import android.os.Bundle; 9 import android.view.View;10 import android.widget.AdapterView;11 import android.widget.ArrayAdapter;12 import android.widget.AutoCompleteTextView;13 import android.widget.Spinner;14 import android.widget.Toast;15 16 public class TestActivity10 extends AppCompatActivity {17 18     AutoCompleteTextView at_1;19     Spinner sp_1;20     @Override21     protected void onCreate(Bundle savedInstanceState) {22         super.onCreate(savedInstanceState);23         setContentView(R.layout.activity_test10);24         at_1 = (AutoCompleteTextView)findViewById(R.id.at_1);25         sp_1 = (Spinner)findViewById(R.id.sp_1);26         //準備資料來源27         String[] strings = {"abc","and","bea","car","AFcgy","ctret","Auyn"};28         //準備適配器29         ArrayAdapter<String> arrayAdapter= new ArrayAdapter<String>(this,R.layout.arry_adapter,strings);30         //給組件設定適配器31         at_1.setAdapter(arrayAdapter);32 33         //下拉式清單34         final String[] xl = {"高中","專科","本科","碩士","博士"};35         ArrayAdapter<String> sp = new ArrayAdapter<String>(this,R.layout.arry_adapter,xl);36         sp_1.setAdapter(sp);37         //監聽38         sp_1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {39             @Override40             public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {41                 Toast.makeText(TestActivity10.this, "選中的項目是 "+xl[position], Toast.LENGTH_SHORT).show();42             }43 44             @Override45             public void onNothingSelected(AdapterView<?> parent) {46                 Toast.makeText(TestActivity10.this, "什麼也沒選", Toast.LENGTH_SHORT).show();47             }48         });49     }50     //發訊息51     public void bt_onClick(View v)52     {53         //1.得到狀態列訊息管理器54         NotificationManager nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);55 56         //準備PendingIntent57         //1)建立Intent58         Intent intent = new Intent(this,TestActivity1.class);59         //2)產生60         PendingIntent pi = PendingIntent.getActivity(this, 0, intent, 0);61         //2.構建狀態列訊息62         Notification nt = new Notification.Builder(this)63                 .setContentTitle("天氣預報")64                 .setContentText("明天晴，氣溫30°")65                 .setSmallIcon(R.drawable.gmail)66                 .setTicker("新的天氣預報")67                 .setDefaults(Notification.DEFAULT_SOUND)68                 .setAutoCancel(false)69                 .setContentIntent(pi)70                 .build();71         //3.由管理器發送訊息72         nm.notify(0,nt);73     }74 }

為：

點擊狀態通知欄會跳轉到另一個Activity介面

 

附相關思維導圖：

Android——AutoCompleteTextView、Spinner和訊息提示