android從一個Activity轉到另一個Activity的方式：，androidactivity

android從一個Activity轉到另一個Activity的方式：，androidactivity

MainActivity：點擊一個Button會跳轉到另一個NextActivity

package com.example;import java.util.ArrayList;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Button button = (Button) findViewById(R.id.but1);        button.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                // TODO Auto-generated method stub                Intent intent = new Intent(MainActivity.this,                        NextActivity.class);                /*                 * 第二種                  * Intent intent2=new Intent();                 * intent2.setClass(MainActivity.this, NextActivity.class);                 *第三種：                  * Intent intent3 =new Intent("com.example.NextActivity");                 *注意：此方法一定要在Manifest資訊清單檔中配置intent-filter標籤中配置action屬性                 *                 * 等價於：                 * Intent intent3 =new Intent("com.example.NextActivity");                 * intent3.setAction(com.example.NextActivity");                 *                  * 最後不要忘記有個：startActivity（intent）方法哦！                 */                intent.putExtra("name", "zhangsan");                intent.putExtra("age", 20);                ArrayList<String> arrayList = new ArrayList<String>();                arrayList.add("1");                arrayList.add("2");                arrayList.add("4");                intent.putStringArrayListExtra("unknow", arrayList);                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;    }}

AndroidManifest檔案：

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="17" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="com.example.MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <activity android:name=".NextActivity">            <intent-filter >                <action android: name="com.example.NextActivity"/>                <category android:name="android.intent.category.DEFAULT" />            </intent-filter>                    </activity>    </application></manifest>

在NextActivity中得到由MainActivity傳過來的資料：

package com.example;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;

public class NextActivity extends Activity {
    private final String TAG = "NextActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_next);
        Intent intent = getIntent();
        String name = intent.getStringExtra("name");
        Log.i(TAG, "--name-->>" + name);
        int age = intent.getIntExtra("age", 0);
        Log.i(TAG, "--age-->>" + age);
        ArrayList<String> arrayList = intent.getStringArrayListExtra("unknow");
        for (String s : arrayList) {
            Log.i(TAG, s);

        }

    }

}