Make handleLanguageSwitch() compatible with lower API levels.

sundeepdwd · Sep 6, 2016 · 74ea58a · 74ea58a
1 parent 1eb2fe2
commit 74ea58a
Showing 1 changed file with 31 additions and 2 deletions.
diff --git a/Mymr/src/main/java/com/google/languageresources/mymr/MyanmarUnicodeKeyboard.java b/Mymr/src/main/java/com/google/languageresources/mymr/MyanmarUnicodeKeyboard.java
@@ -33,6 +33,8 @@
 import android.view.inputmethod.InputConnection;
 import android.view.inputmethod.InputMethodManager;
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -630,7 +632,34 @@ private IBinder getToken() {
  }
 
  private void handleLanguageSwitch() {
- mInputMethodManager.switchToNextInputMethod(getToken(), false /* onlyCurrentIme */);
+ try {
+ Method m =
+ InputMethodManager.class
+ .getMethod(
+ "switchToNextInputMethod",
+ new Class[] {android.os.IBinder.class, boolean.class});
+ m.invoke(mInputMethodManager, getToken(), false /* onlyCurrentIme */);
+ return;
+ } catch (NoSuchMethodException e) {
+ // Android API level < 14. Do nothing.
+ } catch (IllegalAccessException | InvocationTargetException e) {
+ // This cannot happen.
+ throw new AssertionError(e);
+ }
+ try {
+ Method m =
+ InputMethodManager.class
+ .getMethod(
+ "switchToLastInputMethod",
+ new Class[] {android.os.IBinder.class});
+ m.invoke(mInputMethodManager, getToken());
+ return;
+ } catch (NoSuchMethodException e) {
+ // Android API level < 11. Do nothing.
+ } catch (IllegalAccessException | InvocationTargetException e) {
+ // This cannot happen.
+ throw new AssertionError(e);
+ }
  }
 
  private void checkToggleCapsLock() {
@@ -644,7 +673,7 @@ private void checkToggleCapsLock() {
  }
 
  public boolean isSeparator(int code) {
- return SEPARATORS.contains(String.valueOf((char)code));
+ return SEPARATORS.contains(String.valueOf((char) code));
  }
 
  public void pickDefaultCandidate() {