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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                1、使用Intent可以很方便地在不同的Activity間傳遞數據,這個也是官方推薦的方式,但是也有一定的局限性,就是Intent無法傳遞不能序列化的對象,然而這個問題可以用靜態變量來解決~ 2、下面來具體舉個例子,新建一個Android工程,如下圖: ![](https://box.kancloud.cn/2016-08-23_57bc06b09adc1.jpg) 3、在布局文件(“res/layout”)中添加按鈕“Button”,代碼如下: ~~~ <Button android:id="@+id/button" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="使用靜態變量傳遞數據" /> ~~~ 4、在當前目錄下再建一個布局文件“other.xml”,在其中添加一個“TextView”標簽,代碼如下: ~~~ <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/msg" android:layout_width="fill_parent" android:layout_height="fill_parent" > </TextView> </LinearLayout> ~~~ 5、右擊“src”下的包,新建類“OtherActivity”并使其繼承“Activity”,在這個類中添加“onCreate”方法,并在其中添加成員“textview”、“name”、“age”,最后將其值設置給“textview”,代碼如下: ~~~ package com.android.myintent; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class OtherActivity extends Activity { private TextView textview; // 添加一個靜態變量 // 欲傳遞數據,添加一個public屬性的靜態變量 public static String name; public static int age; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.other);// 加載布局文件 textview = (TextView) this.findViewById(R.id.msg);// 查找并加載 textview.setText("-name-->>" + name + "\n" + "-age-->>" + age); } public OtherActivity() { // TODO Auto-generated constructor stub } } ~~~ 6、在“Main.java”里添加一個“Button”類型成員,設置點擊事件,并創建意圖為OtherActivity中的靜態變量賦值,代碼如下: ~~~ package com.android.myintent; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.widget.Button; public class Main extends Activity { private Button button; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button) this.findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub // 聲明一個意圖 Intent intent = new Intent();// 可以構造一個空意圖,在下面傳遞類 intent.setClass(Main.this, OtherActivity.class); OtherActivity.age = 23; OtherActivity.name = "Jack"; startActivity(intent); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } } ~~~ 7、在“AndroidManifest.xml”中添加一個“activity.xml”設置,“name”為“.OtherActivity”,使系統能找到該類,代碼: ~~~ <activity android:name=".OtherActivity" > </activity> ~~~ 8、運行程序,結果截圖如下: ![](https://box.kancloud.cn/2016-08-23_57bc06b0de42f.jpg) ![](https://box.kancloud.cn/2016-08-23_57bc06b128287.jpg) Ps:My second Android Application~
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