android从一个Activity转到另一个Activity的方式：_移动开发_编程开发_程序员俱乐部

MainActivity：点击一个Button会跳转到另一个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);
                /*
                 * 第二种 
                 * Intent intent2=new Intent();
                 * intent2.setClass(MainActivity.this, NextActivity.class);
                 *第三种： 
                 * Intent intent3 =new Intent("com.example.NextActivity");
                 *注意：此方法一定要在Manifest清单文件中配置intent-filter标签中配置action属性
                 *
                 * 等价于：
                 * Intent intent3 =new Intent("com.example.NextActivity");
                 * intent3.setAction(com.example.NextActivity");
                 * 
                 * 最后不要忘记有个：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文件：

<?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传过来的数据：

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);

        }

    }

}