使用TextView创建指向Activity的链接

时间:2013-03-12 20:05:38

标签: android textview android-activity

我有一个名为Activity的{​​{1}},其中包含MainActivity.java个文件。但我不知道如何创建一个链接来启动另一个名为activity_main.xml的活动。以下是我的代码示例。

的strings.xml

DirectionActivity

activity_main.xml textview

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="app_name">EEMA</string>
     <string name="action_settings">Settings</string>
     <string name="hello_world">The Emergency Evacuation Mobile App!</string>
     <string name="directions">\n\nTo view directions click here!</string>
     <string name="title_activity_direction">DirectionActivity</string>
     <string name="title_activity_main">MainActivity</string>
</resources>

MainActivity.java

<TextView  android:id="@+id/txtView"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="" 
    android:textSize="12sp"
    android:textColorLink="#FFFF00"
    android:textStyle="bold"
/>

DirectionActivity.java

public class MainMenuActivity extends Activity {
    public final static String EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_menu);

        String str = "Please click here to view Directions";
        TextView txtView = (TextView) findViewById(R.id.txtView);
        txtView.setText(str);
        Linkify.addLinks(txtView, Linkify.ALL);     
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main_menu, menu);
        return true;
    }
}

那么我需要做些什么才能获得请点击此处查看方向以显示为打开DirectionActivity的链接?

1 个答案:

答案 0 :(得分:4)

你想要做两件事。首先,您希望点击TextView后发生一些事情。其次,您要发布新的Activity

要完成第一件事,在您的活动类“onCreate方法中,您需要以下内容:

final TextView txtView = this.findViewById(R.id.txtView);
txtView.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
        ...
    }
});

要完成第二件事,如果您要发起的Activity被称为DirectionActivity

final TextView txtView = this.findViewById(R.id.txtView);
txtView.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
        MainMenuActivity.this.startActivity(new Intent(MainMenuActivity.this, DirectionActivity.class));
    }
});