如何启动按钮点击新活动 [英] How to start new activity on button click

问题描述

在一个Android应用程序，你如何开始一个新的活动（GUI）点击在另一活动按钮时，你怎么这两项活动之间传递数据？

In an Android application, how do you start a new activity (GUI) when a button in another activity is clicked, and how do you pass data between these two activities?

推荐答案

容易。 [重新排序]

Easy. [Re-ordered]

Intent myIntent = new Intent(CurrentActivity.this, NextActivity.class);
myIntent.putExtra("key", value); //Optional parameters
CurrentActivity.this.startActivity(myIntent);

附加功能是通过检索的另一面：code编辑]

Extras are retrieved on the other side via: [code edited]

@Override
protected void onCreate(Bundle savedInstanceState) {
Intent intent = getIntent();
String value = intent.getStringExtra("key"); //if it's a string you stored.

[添加] 不要忘了添加新的活动在AndroidManifest.xml：

[added] Don't forget to add your new activity in the AndroidManifest.xml:

<activity android:label="@string/app_name" android:name="NextActivity"/>

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