Android将项目添加到全局上下文菜单

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问题描述

当您长时间按Android中的某些内容时，会出现上下文菜单.我想在系统中的所有TextViews中添加一些上下文菜单.

例如，系统使用复制和粘贴来完成此操作.我想添加自己的，并在每个应用程序中出现.

其他推荐答案

在文件中添加intent-filter android-manifest.xml:

<activity
   android:name=".ProcessTextActivity"
   android:label="@string/process_text_action_name">
  <intent-filter>
     <action android:name="android.intent.action.PROCESS_TEXT" />
     <category android:name="android.intent.category.DEFAULT" />
     <data android:mimeType="text/plain" />
 </intent-filter>
</activity>

在Activity您的应用程序中，用户文本在Method otCreate():

中都会突出显示.

  @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.process_text_main);
    CharSequence text = getIntent()
      .getCharSequenceExtra(Intent.EXTRA_PROCESS_TEXT);
    // process the text
}

中等.

感谢用户: yungblade

他回答 ru.stackoverflow.com

其他推荐答案

嗯;我不知道您是否可以扩展以例如例如示例类型的类型. Ruby(我的Java知识还不够深).

但是，您可以从TextView得出自己的MyTextView.然后在这样的布局中替换所有文本视图:

<TextView android:id="@+id/TextView01" />

<com.mydomain.mypackage.MyTextView android:id="@+id/TextView01" />

自动更改所有这些字段的类型.

然后您需要覆盖所有构造函数 (特别是TextView(Context context, AttributeSet attrs)).

之后，所有布局充气器(自动或手动)都不会大惊小怪.

然后您可以根据需要创建/注册上下文菜单回调.

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问题描述

When you long press on something in Android, a context menu comes up. I want to add something to this context menu for all TextViews in the system.

For example, the system does this with Copy and Paste. I would want to add my own, and have it appear in every application.

其他推荐答案

Add intent-filter in your file android-manifest.xml:

<activity
   android:name=".ProcessTextActivity"
   android:label="@string/process_text_action_name">
  <intent-filter>
     <action android:name="android.intent.action.PROCESS_TEXT" />
     <category android:name="android.intent.category.DEFAULT" />
     <data android:mimeType="text/plain" />
 </intent-filter>
</activity>

Get highlighted by user text in activity your app in method onCreate():

  @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.process_text_main);
    CharSequence text = getIntent()
      .getCharSequenceExtra(Intent.EXTRA_PROCESS_TEXT);
    // process the text
}

More information in the article on medium.

Thanks for user: YungBlade

Him answer on ru.stackoverflow.com

其他推荐答案

Hmm; I don't know if you can extend built in types like in example. Ruby (my Java knowledge is not so deep enough).

However you can derive your own MyTextView from TextView. Then substitute all your TextView in layouts like this:

<TextView android:id="@+id/TextView01" />

<com.mydomain.mypackage.MyTextView android:id="@+id/TextView01" />

to automatically change type of all these fields.

Then you need to override all constructors (especially TextView(Context context, AttributeSet attrs) ).

After that all layout inflaters (automatic or manual) will create this type with no fuss.

Then you can create/register context menu callbacks as you wish.

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