第一个页面
layout
只有两个按钮
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_third"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.iamchan.framelay.ThirdActivity">
<Button
android:text="按钮"
android:id="@+id/btn_sub"
android:layout_width="match_parent"
android:layout_height="60dp" />
<Button
android:text="按钮2"
android:id="@+id/btn_sub2"
android:layout_width="match_parent"
android:layout_height="60dp" />
</LinearLayout>
java
package com.example.iamchan.framelay;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class ThirdActivity extends AppCompatActivity {
private Button btn_sub;
private Button btn_sub2;
Bundle bundle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_third);
btn_sub= (Button) findViewById(R.id.btn_sub);
btn_sub2= (Button) findViewById(R.id.btn_sub2);
/*
*
* 简单的传值
*
* */
/* btn_sub.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent=new Intent();
intent.setClass(ThirdActivity.this,FouthActivity.class);
intent.putExtra("name","iamchan");
intent.putExtra("age","保密");
intent.putExtra("number",123456);
startActivity(intent);
}
});*/
/*
*
* bundle使用起来比较方便
* 相同数据实例化一个bundle可以在不同页面传输
* 我现在要从third界面 跳转到fouth界面或者sixth界面 需要写2个Intent 如果你还要涉及的传值的话
* 你的Intent就要写两遍添加值的方法 (putExtra)我用1个Bundle把值存在里面 跳转时放入intent中
* 如果我现在有三个页面
* 跳转时从第一个页面用bundle传值跳转到第二个页面
* 第二页面传相同的值到第三个页面 就可以直接传上一页面的bundle就行 参照页面二和三
*
* */
/*bundle=new Bundle();
bundle.putString("name","iamchan");
bundle.putString("age","保密");
bundle.putInt("number",123456);*/
/* btn_sub.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent=new Intent();
intent.setClass(ThirdActivity.this,FouthActivity.class);
intent.putExtras(bundle);
startActivity(intent);
}
});
btn_sub2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent=new Intent();
intent.setClass(ThirdActivity.this,SixthActivity.class);
intent.putExtras(bundle);
startActivity(intent);
}
});*/
}
}
第二个页面
layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_fouth"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.iamchan.framelay.FouthActivity">
<TextView
android:text=""
android:id="@+id/tv_text"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<Button
android:id="@+id/btn_intent"
android:text="跳转"
android:layout_width="match_parent"
android:layout_height="40dp" />
</LinearLayout>
java
package com.example.iamchan.framelay;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class FouthActivity extends AppCompatActivity {
private TextView tv_text;
private Button btn_intent;
Bundle bundle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fouth);
tv_text= (TextView) findViewById(R.id.tv_text);
btn_intent= (Button) findViewById(R.id.btn_intent);
Intent intent=getIntent();
/*
*
* intent 获取extra
*
* */
/* if(intent!=null){
String name=intent.getStringExtra("name");
String age=intent.getStringExtra("age");
int number=intent.getIntExtra("number",0);
tv_text.setText("名字:"+name+"年龄:"+age+"编号"+number);
}*/
/*if(intent!=null){
bundle=intent.getExtras();
String name=bundle.getString("name");
String age=bundle.getString("age");
int number=bundle.getInt("number",0);
tv_text.setText("名字:"+name+"年龄:"+age+"编号"+number);
}*/
/*
*
* 直接拿到bundle传给下一个页面
*
* */
/* btn_intent.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent=new Intent(FouthActivity.this,SixthActivity.class);
intent.putExtras(bundle);
startActivity(intent);
}
});*/
}
}
第三个页面
layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_sixth"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.iamchan.framelay.SixthActivity">
<TextView
android:id="@+id/tv_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
java
package com.example.iamchan.framelay;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
public class SixthActivity extends AppCompatActivity {
private TextView tv_text;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sixth);
tv_text= (TextView) findViewById(R.id.tv_text);
/*Intent intent=getIntent();
if(intent!=null){
Bundle bundle=intent.getExtras();
String name=bundle.getString("name");
String age=bundle.getString("age");
int number=bundle.getInt("number",0);
tv_text.setText("名字:"+name+"年龄:"+age+"编号"+number);
}*/
}
}