第六集android使用剪切板传递数据

MainActivity.java

package com.fxp.intent3;

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;

import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.Intent;
import android.util.Base64;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

@SuppressLint("NewApi")
public class MainActivity extends Activity {
    private Button goButton;
    private TextView hiTextView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        goButton= (Button)this.findViewById(R.id.goButton);
        goButton.setOnClickListener(new View.OnClickListener() {
            
            @Override
            public void onClick(View v) {
/*                ClipboardManager clipboardManager = (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
                String name = "jack";
                clipboardManager.setText(name);
                Intent intent = new Intent(MainActivity.this,OtherActivity.class);
                startActivity(intent);*/
                MyData myData = new MyData("jack", 23);
                //将对象转换成字符串
                ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
                String base64String = "";
                try {
                    ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);
                    objectOutputStream.writeObject(myData);
                    base64String = Base64.encodeToString(byteArrayOutputStream.toByteArray(), Base64.DEFAULT);
                    objectOutputStream.close();
                } catch (Exception e) {
                    // TODO: handle exception
                }
                ClipboardManager clipboardManager = (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
                clipboardManager.setText(base64String);
                Intent intent = new Intent(MainActivity.this,OtherActivity.class);
                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;
    }

}

 

MyData.java

package com.fxp.intent3;

import java.io.Serializable;

public class MyData implements Serializable {
    private String name;
    private int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public MyData(String name, int age) {
        super();
        this.name = name;
        this.age = age;
    }
    @Override
    public String toString() {
        return "MyData [name=" + name + ", age=" + age + "]";
    }
    
}

 

OtherActivity.java

package com.fxp.intent3;

import java.io.ByteArrayInputStream;
import java.io.ObjectInputStream;

import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.Intent;
import android.util.Base64;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class OtherActivity extends Activity {
    private Button backButton;
    private TextView msg;
    @SuppressLint("NewApi")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.other);
        msg = (TextView)this.findViewById(R.id.msg);
        backButton= (Button)this.findViewById(R.id.backButton);
        ClipboardManager clipboardManager = (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
        String msgString = clipboardManager.getText().toString();
        //msg.setText(msgString);
        byte[] base64_byte=Base64.decode(msgString, Base64.DEFAULT);
        ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(base64_byte);
        try {
            ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream);
            MyData myData = (MyData)objectInputStream.readObject();
            msg.setText(myData.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @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;
    }

}

 

main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/hiTextView"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

    <Button
        android:id="@+id/goButton"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:text="使用剪切板传递数据" />

</LinearLayout>

 

other.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/msg"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="第二页" />

    <Button
        android:id="@+id/backButton"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:text="使用剪切板传递数据" />

</LinearLayout>

 

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.fxp.intent3"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:maxSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.fxp.intent3.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="com.fxp.intent3.OtherActivity" android:label="@string/app_name" ></activity>
    </application>

</manifest>