friends I'm new in Android programming and I want to learn that how we can select text and return selected text into String.
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Explain your Question,select text means ? from where? any sample piece of code u tried?Rajan Kali– Rajan Kali2015-09-27 15:20:36 +00:00Commented Sep 27, 2015 at 15:20
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Actually brother I just want define those selected text but I don't know that how to doPenguin– Penguin2015-09-27 15:23:24 +00:00Commented Sep 27, 2015 at 15:23
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2 Answers
Ok here is the quick example where you select the text and using a Toast you show it to the screen :
MainActivity
public class MainActivity extends AppCompatActivity {
private static final int TRANSLATE = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final TextView mTextView = (TextView) findViewById(R.id.txt);
mTextView.setCustomSelectionActionModeCallback(new ActionMode.Callback() {
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
menu.add(0,TRANSLATE,0,"Translate").setIcon(R.drawable.ic_translate); //choose any icon
// Remove the other options
menu.removeItem(android.R.id.selectAll);
menu.removeItem(android.R.id.cut);
menu.removeItem(android.R.id.copy);
return true;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return true;
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()){
case TRANSLATE:
int min = 0;
int max = mTextView.getText().length();
if (mTextView.isFocused()) {
final int selStart = mTextView.getSelectionStart();
final int selEnd = mTextView.getSelectionEnd();
min = Math.max(0, Math.min(selStart, selEnd));
max = Math.max(0, Math.max(selStart, selEnd));
}
final CharSequence selectedText = mTextView.getText().subSequence(min, max); //this is your desired string
Toast.makeText(getApplicationContext(),selectedText,Toast.LENGTH_SHORT).show();
//Here put your code for translation
mode.finish();
}
return false;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
}
});
}
XML:
<RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<TextView
android:textIsSelectable="true"
android:id="@+id/txt"
android:text="@string/hello_world" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
1 Comment
Penguin
Thank you so much Lazai. I really appreciating to your knowledge :). This code helps me perfectly which I want it.
If you want to select text from an EditText you can use this:
String selectedText = editText.getText().substring(startSelection, endSelection);
Where :
int startSelection=editText.getSelectionStart();
int endSelection=editText.getSelectionEnd();
However if you have a TextView you need to create your own ActionMode.Callback when you select your text. To view a quick example go to this post.
4 Comments
Penguin
Hello Lazai , actually dear I just want to develop an app where user can select word and I want define option to translate that word ... Please help me to making this app...
mariuss
Well when you select that text , let's assume it's a word or even a phrase , using the ActionMode.Callback you have certain menu icons ; each of them representing a functionality ; All you need to do is in onCreateActionMode() -> define a new menu icon (functionality) let's say translation : menu.add(0,TRANSLATION,0,"Translation").setIcon(R.drawable.ic_translate); After that in onActionItemClicked() -> you wrote your code there to translate that string and return it , whatever you want to do with it
Penguin
Dear Lazai, Actually I tried some code but actually can't able to do that please can you give me some code that it will help me to do that please .... 😢
Penguin
Just only you told me code that how can I return selected text . Actually I am stuck on that concept please ... 😊