Support voice search

app/src/leanback/java/com/fongmi/android/tv/CustomListener.java

@@ -0,0 +1,68 @@
+package com.fongmi.android.tv;
+
+import android.os.Bundle;
+import android.speech.RecognitionListener;
+import android.speech.SpeechRecognizer;
+import android.text.Editable;
+import android.text.TextWatcher;
+
+import java.util.List;
+
+public abstract class CustomListener implements TextWatcher, RecognitionListener {
+
+    @Override
+    public void onReadyForSpeech(Bundle params) {
+    }
+
+    @Override
+    public void onBeginningOfSpeech() {
+    }
+
+    @Override
+    public void onRmsChanged(float rmsdB) {
+    }
+
+    @Override
+    public void onBufferReceived(byte[] buffer) {
+    }
+
+    @Override
+    public void onEndOfSpeech() {
+    }
+
+    @Override
+    public void onError(int error) {
+    }
+
+    @Override
+    public void onResults(Bundle results) {
+        StringBuilder sb = new StringBuilder();
+        List<String> texts = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
+        for (String text : texts) sb.append(text).append("\n");
+        String result = sb.toString().trim();
+        if (result.length() > 0) onResults(result);
+    }
+
+    @Override
+    public void onPartialResults(Bundle partialResults) {
+    }
+
+    @Override
+    public void onEvent(int eventType, Bundle params) {
+    }
+
+    @Override
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+    }
+
+    @Override
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+    }
+
+    @Override
+    public void afterTextChanged(Editable s) {
+    }
+
+    public void onResults(String result) {
+    }
+}

app/src/leanback/java/com/fongmi/android/tv/ui/activity/SearchActivity.java

@@ -1,22 +1,29 @@
 package com.fongmi.android.tv.ui.activity;
 
+import android.Manifest;
 import android.app.Activity;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.os.Handler;
 import android.os.Looper;
+import android.speech.RecognizerIntent;
+import android.speech.SpeechRecognizer;
 import android.text.Editable;
 import android.text.TextUtils;
-import android.text.TextWatcher;
 import android.view.View;
 import android.view.inputmethod.EditorInfo;
 
+import androidx.activity.result.ActivityResultLauncher;
+import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
 import androidx.leanback.widget.ArrayObjectAdapter;
 import androidx.leanback.widget.ItemBridgeAdapter;
 import androidx.leanback.widget.ListRow;
 import androidx.lifecycle.ViewModelProvider;
 import androidx.viewbinding.ViewBinding;
 
+import com.fongmi.android.tv.CustomListener;
 import com.fongmi.android.tv.api.ApiConfig;
 import com.fongmi.android.tv.bean.Hot;
 import com.fongmi.android.tv.bean.Result;
@@ -45,9 +52,12 @@ import java.util.concurrent.Executors;
 import okhttp3.Call;
 import okhttp3.Response;
 
-public class SearchActivity extends BaseActivity implements VodPresenter.OnClickListener, WordPresenter.OnClickListener, TextWatcher {
+public class SearchActivity extends BaseActivity implements VodPresenter.OnClickListener, WordPresenter.OnClickListener {
+
+    private final ActivityResultLauncher<String> launcherString = registerForActivityResult(new ActivityResultContracts.RequestPermission(), isGranted -> onVoice());
 
     private ActivitySearchBinding mBinding;
+    private SpeechRecognizer mRecognizer;
     private SiteViewModel mSiteViewModel;
     private ArrayObjectAdapter mWordAdapter;
     private ArrayObjectAdapter mAdapter;
@@ -85,6 +95,7 @@ public class SearchActivity extends BaseActivity implements VodPresenter.OnClick
     @Override
     protected void initView() {
         mHandler = new Handler(Looper.getMainLooper());
+        mRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
         mBinding.keyword.requestFocus();
         CustomKeyboard.init(mBinding);
         setRecyclerView();
@@ -96,7 +107,7 @@ public class SearchActivity extends BaseActivity implements VodPresenter.OnClick
 
     @Override
     protected void initEvent() {
-        mBinding.keyword.addTextChangedListener(this);
+        mBinding.voice.setOnClickListener(view -> onVoice());
         mBinding.search.setOnClickListener(view -> onSearch());
         mBinding.clear.setOnClickListener(view -> mBinding.keyword.setText(""));
         mBinding.remote.setOnClickListener(view -> PushActivity.start(this));
@@ -104,6 +115,21 @@ public class SearchActivity extends BaseActivity implements VodPresenter.OnClick
             if (actionId == EditorInfo.IME_ACTION_DONE) mBinding.search.performClick();
             return true;
         });
+        mBinding.keyword.addTextChangedListener(new CustomListener() {
+            @Override
+            public void afterTextChanged(Editable s) {
+                if (s.toString().isEmpty()) getHot();
+                else getSuggest(s.toString());
+            }
+        });
+        mRecognizer.setRecognitionListener(new CustomListener() {
+            @Override
+            public void onResults(String result) {
+                mBinding.search.requestFocus();
+                mBinding.keyword.setText(result);
+                mBinding.keyword.setSelection(result.length());
+            }
+        });
     }
 
     private void setRecyclerView() {
@@ -148,6 +174,16 @@ public class SearchActivity extends BaseActivity implements VodPresenter.OnClick
         mBinding.progressLayout.showContent();
     }
 
+    private void onVoice() {
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
+            launcherString.launch(Manifest.permission.RECORD_AUDIO);
+        } else {
+            Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
+            intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
+            mRecognizer.startListening(intent);
+        }
+    }
+
     private void onSearch() {
         String keyword = mBinding.keyword.getText().toString().trim();
         mBinding.keyword.setSelection(mBinding.keyword.length());
@@ -211,20 +247,6 @@ public class SearchActivity extends BaseActivity implements VodPresenter.OnClick
         });
     }
 
-    @Override
-    public void afterTextChanged(Editable s) {
-        if (s.toString().isEmpty()) getHot();
-        else getSuggest(s.toString());
-    }
-
-    @Override
-    public void onTextChanged(CharSequence s, int start, int before, int count) {
-    }
-
-    @Override
-    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-    }
-
     @Override
     public void onBackPressed() {
         if (isProgressVisible()) {
@@ -239,6 +261,7 @@ public class SearchActivity extends BaseActivity implements VodPresenter.OnClick
     @Override
     protected void onDestroy() {
         super.onDestroy();
+        mRecognizer.destroy();
         stopSearch();
     }
 }