Activity与Activity之间的传值
//----------Activity1中的布局---------------------------------
<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">
<TextView
android:layout_width="match_parent"
android:layout_height="50dp"
android:id="@+id/tv_text1"
android:text="我是Activity1" />
<EditText android:layout_width="match_parent"
android:layout_height="50dp"
android:id="@+id/et_edittext1"/>
<Button android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="跳转到Activity2"
android:id="@+id/bt_button1"/>
</LinearLayout>
//------------------Activity2的布局文件-------------------------------
<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" >
<TextView
android:layout_width="match_parent"
android:layout_height="50dp"
android:id="@+id/tv_text2"
android:text="我是Activity2" />
<EditText android:layout_width="match_parent"
android:layout_height="50dp"
android:id="@+id/et_edittext2"/>
<Button android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="跳转到Activity1"
android:id="@+id/bt_button2"/>
</LinearLayout>
//---------------Activity1中-------------------------------
package com.example.test;
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;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity implements OnClickListener {
private Button bt_button1;
private TextView tv_text1;
private EditText et_edittext1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv_text1 = (TextView) findViewById(R.id.tv_text1);
et_edittext1 = (EditText) findViewById(R.id.et_edittext1);
bt_button1 = (Button) findViewById(R.id.bt_button1);
bt_button1.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bt_button1:
Intent intent=new Intent(this,TwoActivity.class);
String text=et_edittext1.getText().toString().trim();
intent.putExtra("kk", text);
startActivityForResult(intent, 0);
break;
default:
break;
}
}
//此方法用户接受返回的数据
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (resultCode) {
case 1:
Bundle b=data.getExtras();
String str=b.getString("ww");
tv_text1.setText(str);
break;
default:
break;
}
}
}
//----------------Activity2中----------------------------
package com.example.test;
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;
import android.widget.EditText;
import android.widget.TextView;
public class TwoActivity extends Activity implements OnClickListener {
private TextView tv_text2;
private EditText et_edittext2;
private Button bt_button2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_two);
//找到控件
tv_text2 = (TextView) findViewById(R.id.tv_text2);
et_edittext2 = (EditText) findViewById(R.id.et_edittext2);
bt_button2 = (Button) findViewById(R.id.bt_button2);
//获得Activity1传递来的值
Intent intent=getIntent();
String str=intent.getStringExtra("kk");
//显示Activity1传递来的值
tv_text2.setText(str);
bt_button2.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bt_button2:
String text=et_edittext2.getText().toString().trim();
Intent intent=new Intent(this,MainActivity.class);
intent.putExtra("ww", text);
//用setResult返回数据
setResult(1, intent);
finish();
break;
default:
break;
}
}
}
