android中activity的相互传值
package com.myactivitytest;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.LinearLayout;import android.widget.TextView;public class MainActivity extends Activity {private TextView textView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);textView = new TextView(this);textView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));Button button = new Button(this);button.setText("设置金额");button.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT));button.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View arg0) {Intent localIntent = new Intent();localIntent.setClass(MainActivity.this, OrderActivity.class);startActivityForResult(localIntent,8888);}});LinearLayout linearLayout = new LinearLayout(this);linearLayout.setOrientation(LinearLayout.VERTICAL);linearLayout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT));linearLayout.addView(textView);linearLayout.addView(button);setContentView(linearLayout);}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent intent){System.out.println(requestCode);if(requestCode==8888&&resultCode==RESULT_OK&&intent.hasExtra("orderMoney")){textView.setText(intent.getExtras().getString("orderMoney"));}}}
OrderActivity代码
package com.myactivitytest;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.EditText;import android.widget.LinearLayout;public class OrderActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);final EditText editText = new EditText(this);editText.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT));Button button = new Button(this);button.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT));button.setText("返回主界面");button.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View arg0) {System.out.println("input is:"+editText.getText().toString());Intent localIntent = new Intent(); localIntent.putExtra("orderMoney", editText.getText().toString());setResult(RESULT_OK,localIntent);finish();}});LinearLayout linearLayout = new LinearLayout(this);linearLayout.setOrientation(LinearLayout.VERTICAL);linearLayout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT));linearLayout.addView(editText);linearLayout.addView(button);setContentView(linearLayout);}}?
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