Android Intent傳遞物件和ArrayList【大明進化十八】
阿新 • • 發佈：2019-02-01
以前做專案的時候，需要Intent 傳遞複雜型別，例如：陣列，ArrayList型別，傳遞類物件，今天抽空寫了個例子，方便以後用的時候查詢！有問題可以留言；
轉載請標明出處：
程式主介面： 點選list按鈕傳遞資料：
點選parcelable傳遞資料： 點選serializable傳遞資料：
下面看程式碼：
一、MainAcitivty。java類的程式碼：
package com.cn.daming;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.app.ListActivity;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.GradientDrawable.Orientation;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity implements Serializable{
private static final long serialVersionUID = 1L;
private String s_name;
private int s_number;
private String s_sex;
private Button list_Button;
private Button ser_Button;
private Button par_Button;
private ArrayList<String> m_list;
public final static String PAR_KEY = "com.cn.daming.parcelable";
public final static String SER_KEY = "com.cn.daming.serializable";
public final static String LIST_KEY = "com.cn.daming.ArrayList";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initlist();
drawBackground();
initList_Button();
initPar_Button();
inintSer_Button();
}
public void initlist()
{
m_list = new ArrayList<String>();
m_list.add("大明ArrayList");
m_list.add("年齡:25歲");
m_list.add("性別：男");
}
public void drawBackground()
{
GradientDrawable grad = new GradientDrawable(
Orientation.TL_BR,
new int[] {Color.rgb(0, 0, 127),
Color.rgb(0, 0, 255),
Color.rgb(127, 0, 255),
Color.rgb(127, 127, 255),
Color.rgb(127, 255, 255),
Color.rgb(255, 255, 255)}
);
this.getWindow().setBackgroundDrawable(grad);
}
public void initList_Button()
{
list_Button = (Button)findViewById(R.id.list_button);
list_Button.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
Intent list_intent = new Intent();
list_intent.putStringArrayListExtra(LIST_KEY, m_list);
list_intent.setClass(MainActivity.this, ShowListView.class);
startActivity(list_intent);
}
});
}
public void initPar_Button()
{
par_Button = (Button)findViewById(R.id.par_button);
par_Button.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
Student m_Student = new Student();
m_Student.setName("大明例子");
m_Student.setAge(25);
m_Student.setSex("男");
Intent p_Intent = new Intent(MainActivity.this,ShowParView.class);
Bundle mBundle = new Bundle();
mBundle.putParcelable(PAR_KEY, m_Student);
p_Intent.putExtras(mBundle);
startActivity(p_Intent);
}
});
}
public void inintSer_Button()
{
ser_Button = (Button)findViewById(R.id.ser_button);
ser_Button.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
MainActivity s_activity = new MainActivity();
s_activity.setS_name("Daming Serlizable!");
s_activity.setS_number(25);
s_activity.setS_sex("男");
Intent mIntent = new Intent(MainActivity.this,ShowSerView.class);
Bundle mBundle = new Bundle();
mBundle.putInt("state", 3);
mBundle.putSerializable(SER_KEY, s_activity);
mIntent.putExtras(mBundle);
startActivity(mIntent);
}
});
}
public void setS_name(String s_name) {
this.s_name = s_name;
}
public String getS_name() {
return s_name;
}
public void setS_number(int s_number) {
this.s_number = s_number;
}
public int getS_number() {
return s_number;
}
public void setS_sex(String s_sex) {
this.s_sex = s_sex;
}
public String getS_sex() {
return s_sex;
}
} 二、Student。java類的程式碼：
package com.cn.daming; import android.os.Parcel; import android.os.Parcelable; public class Student implements Parcelable{ private String name; private int age; private String sex; 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 String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public static final Parcelable.Creator<Student> CREATOR = new Creator<Student>() { public Student createFromParcel(Parcel source) { Student mStudent = new Student(); mStudent.name = source.readString(); mStudent.age = source.readInt(); mStudent.sex = source.readString(); return mStudent; } public Student[] newArray(int size) { return new Student[size]; } }; @Override public int describeContents() { // TODO Auto-generated method stub return 0; } @Override public void writeToParcel(Parcel parcel, int arg1) { parcel.writeString(name); parcel.writeInt(age); parcel.writeString(sex); } }
三、ShowListView。java類的程式碼：
package com.cn.daming;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.GradientDrawable.Orientation;
import android.os.Bundle;
import android.widget.TextView;
public class ShowListView extends Activity{
private Intent list_intent;
private ArrayList<String> m_arrayList;
private TextView list_textview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.show_list_view);
drawBackground();
list_textview = (TextView)findViewById(R.id.list_text_view);
list_intent = getIntent();
m_arrayList = list_intent.getExtras().getStringArrayList(MainActivity.LIST_KEY);
m_arrayList.get(0);
list_textview.setText(m_arrayList.get(0)+" \n"+m_arrayList.get(1)+"\n"+m_arrayList.get(2));
}
public void drawBackground()
{
GradientDrawable grad = new GradientDrawable(
Orientation.TL_BR,
new int[] {Color.rgb(0, 0, 127),
Color.rgb(0, 0, 255),
Color.rgb(127, 0, 255),
Color.rgb(127, 127, 255),
Color.rgb(127, 255, 255),
Color.rgb(255, 255, 255)}
);
this.getWindow().setBackgroundDrawable(grad);
}
}
四、ShowParView。java類的程式碼：
package com.cn.daming;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.GradientDrawable.Orientation;
import android.os.Bundle;
import android.widget.TextView;
public class ShowParView extends Activity{
private TextView par_text_view;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.show_par_view);
drawBackground();
par_text_view = (TextView)findViewById(R.id.par_text_view);
Student p_student = (Student)getIntent().getParcelableExtra(MainActivity.PAR_KEY);
par_text_view.setText("姓名: " + p_student.getName()+"\n"+
"年齡: " + p_student.getAge() + "\n" +
"性別 : " + p_student.getSex() + "\n" +
"類：" + p_student.getClass());
}
public void drawBackground()
{
GradientDrawable grad = new GradientDrawable(
Orientation.TL_BR,
new int[] {Color.rgb(0, 0, 127),
Color.rgb(0, 0, 255),
Color.rgb(127, 0, 255),
Color.rgb(127, 127, 255),
Color.rgb(127, 255, 255),
Color.rgb(255, 255, 255)}
);
this.getWindow().setBackgroundDrawable(grad);
}
}
五、ShowSerView。java類的程式碼：
package com.cn.daming;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.GradientDrawable.Orientation;
import android.os.Bundle;
import android.widget.TextView;
public class ShowSerView extends Activity{
private TextView ser_text_view;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.show_ser_view);
drawBackground();
ser_text_view = (TextView)findViewById(R.id.ser_text_view);
MainActivity s_activity = (MainActivity)getIntent().getSerializableExtra(MainActivity.SER_KEY);
ser_text_view.setText("You name is: " + s_activity.getS_name() + "\n"+
"You age is: " + s_activity.getS_number() +"\n"+
"You sex is: " + s_activity.getS_sex());
}
public void drawBackground()
{
GradientDrawable grad = new GradientDrawable(
Orientation.TL_BR,
new int[] {Color.rgb(0, 0, 127),
Color.rgb(0, 0, 255),
Color.rgb(127, 0, 255),
Color.rgb(127, 127, 255),
Color.rgb(127, 255, 255),
Color.rgb(255, 255, 255)}
);
this.getWindow().setBackgroundDrawable(grad);
}
}
xml佈局檔案
一、main。xml佈局檔案：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:text="@string/hello"
android:textSize="12pt"
/>
<Button
android:id="@+id/list_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:layout_marginTop="10dip"
android:text="Intent傳遞list"
android:textSize="12pt"
/>
<Button
android:id="@+id/par_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:layout_gravity="center"
android:text="parcelable傳遞物件"
android:textSize="12pt"
/>
<Button
android:id="@+id/ser_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:layout_marginTop="10dip"
android:text="serializable傳遞物件"
android:textSize="12pt"
/>
</LinearLayout>
二、show_list_view.xml佈局檔案：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dip"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:text="傳遞過來的ArrayList的值"
android:textSize="12pt"
/>
<TextView
android:id="@+id/list_text_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dip"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:textSize="12pt"
/>
</LinearLayout>
三、show_par_view.xml佈局檔案：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="10dip"
android:gravity="center_horizontal"
android:text="接受從MainActivity中傳遞過來的物件"
android:textSize="12pt"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dip"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:text="傳遞過來的Parcelable值"
android:textSize="12pt"
/>
<TextView
android:id="@+id/par_text_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:textSize="12pt"
/>
</LinearLayout>
四、show_ser_view.xml佈局檔案：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dip"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:text="傳遞過來的Serializable值"
android:textSize="12pt"
/>
<TextView
android:id="@+id/ser_text_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dip"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal"
android:textSize="12pt"
/>
</LinearLayout>
Manifest.xml佈局檔案：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.cn.daming"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".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=".ShowListView"/>
<activity android:name=".ShowParView"/>
<activity android:name=".ShowSerView"/>
</application>
<uses-sdk android:minSdkVersion="8" />
</manifest>