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| /** | |
| * Clean up the media player by releasing its resources. | |
| */ | |
| private void releaseMediaPlayer() { | |
| // If the media player is not null, then it may be currently playing a sound. | |
| if (mMediaPlayer != null) { | |
| // Regardless of the current state of the media player, release its resources | |
| // because we no longer need it. | |
| mMediaPlayer.release(); | |
| // Set the media player back to null. For our code, we've decided that | |
| // setting the media player to null is an easy way to tell that the media player | |
| // is not configured to play an audio file at the moment. | |
| mMediaPlayer = null; | |
| } | |
| } |
Whoah!
What are you trying after this android development course guys!!!!!
package com.example.android.miwok;
import android.content.ClipData;
import android.content.Context;
import android.media.MediaPlayer;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.content.ContextCompat;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class WordAdapter extends ArrayAdapter {private int mColorResourceId; public WordAdapter(@NonNull Context context, @NonNull ArrayList<Word> objects, int colorResourceId) { super(context, 0, objects); mColorResourceId = colorResourceId; } @Override public View getView(int position, View convertView, ViewGroup parent) { // Check if the existing view is being reused, otherwise inflate the view View listItemView = convertView; if(listItemView == null) { listItemView = LayoutInflater.from(getContext()).inflate( R.layout.list_item, parent, false); } // Get the {@link AndroidFlavor} object located at this position in the list final Word currentWord = getItem(position); // Find the TextView in the list_item.xml layout with the ID version_name TextView nameTextView = (TextView) listItemView.findViewById(R.id.miwok_text_view); // Get the version name from the current AndroidFlavor object and // set this text on the name TextView nameTextView.setText(currentWord.getMiwokTranslation()); // Find the TextView in the list_item.xml layout with the ID version_number TextView numberTextView = (TextView) listItemView.findViewById(R.id.default_text_view); // Get the version number from the current AndroidFlavor object and // set this text on the number TextView numberTextView.setText(currentWord.getDefaultTranslation()); // Find the ImageView in the list_item.xml layout with the ID list_item_icon ImageView iconView = (ImageView) listItemView.findViewById(R.id.Image); // Get the image resource ID from the current AndroidFlavor object and // set the image to iconView if(currentWord.hasImage()) { iconView.setImageResource(currentWord.getImageResourceId()); iconView.setVisibility(View.VISIBLE); } else{ iconView.setVisibility(View.GONE); } //Adding Color to the list items View textContainer = listItemView.findViewById(R.id.text_container); int color = ContextCompat.getColor(getContext(), mColorResourceId); textContainer.setBackgroundColor(color); //Adding the audio files to each list item and making them play onClick LinearLayout clickItem = (LinearLayout) listItemView.findViewById(R.id.item); clickItem.setOnClickListener(new View.OnClickListener() { MediaPlayer mediaPlayer = MediaPlayer.create(getContext(), currentWord.getAudioResourceId()); @Override public void onClick(View view) { mediaPlayer.start(); } /** * Clean up the media player by releasing its resources. */ private void releaseMediaPlayer() { // If the media player is not null, then it may be currently playing a sound. if (mediaPlayer != null) { // Regardless of the current state of the media player, release its resources // because we no longer need it. mediaPlayer.release(); // Set the media player back to null. For our code, we've decided that // setting the media player to null is an easy way to tell that the media player // is not configured to play an audio file at the moment. mediaPlayer = null; } } }); // Return the whole list item layout (containing 2 TextViews and an ImageView) // so that it can be shown in the ListView return listItemView; }}
Guys I instead of making the MediaPlayer Object inside each activity created it inside the WordAdapter Class and I also set the onClickListener inside it and found that it works completely fineNice work I made it like that as well but I for some reason I'm not able to add the release method it says that it has to be an array or something
but I have an advice for you instead of making a new MediaPlayer every time the user click the view you can move it out of the OnClickListener but you have to make it 'final' like thisfinal MediaPlayer mediaPlayer = MediaPlayer.create(getContext(), currentWord.getVoiceResourceID());and every time a user click you only select the correct sound by using mediaPlayer.selectTrack()
and that piece of code will be like this :
` final MediaPlayer mediaPlayer = MediaPlayer.create(getContext(), currentWord.getVoiceResourceID());
// Wait for user's input by his click on the list's item to play the sound. View.OnClickListener listener = new View.OnClickListener() { @Override public void onClick(View v) { // Storing the return value of getVoiceResourceID() into mVoice. // I think this line can be ignored so we call the method inside the creation of the Media Player. // Creating our media player and put our track on it. mediaPlayer.selectTrack(currentWord.getVoiceResourceID()); mediaPlayer.start(); mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { // Regardless of the current state of the media player, release its resources // because we no longer need it. mediaPlayer.release(); } }); } };`
but my problem with that is when I have that mediaPlayer.release(); line and I try to click more than one view at a time the app crashes and I can't fix that.
package com.example.android.miwok;
import android.content.ClipData;
import android.content.Context;
import android.media.MediaPlayer;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.content.ContextCompat;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;import java.util.ArrayList;
import java.util.List;public class WordAdapter extends ArrayAdapter {
private int mColorResourceId; public WordAdapter(@NonNull Context context, @NonNull ArrayList<Word> objects, int colorResourceId) { super(context, 0, objects); mColorResourceId = colorResourceId; } @Override public View getView(int position, View convertView, ViewGroup parent) { // Check if the existing view is being reused, otherwise inflate the view View listItemView = convertView; if(listItemView == null) { listItemView = LayoutInflater.from(getContext()).inflate( R.layout.list_item, parent, false); } // Get the {@link AndroidFlavor} object located at this position in the list final Word currentWord = getItem(position); // Find the TextView in the list_item.xml layout with the ID version_name TextView nameTextView = (TextView) listItemView.findViewById(R.id.miwok_text_view); // Get the version name from the current AndroidFlavor object and // set this text on the name TextView nameTextView.setText(currentWord.getMiwokTranslation()); // Find the TextView in the list_item.xml layout with the ID version_number TextView numberTextView = (TextView) listItemView.findViewById(R.id.default_text_view); // Get the version number from the current AndroidFlavor object and // set this text on the number TextView numberTextView.setText(currentWord.getDefaultTranslation()); // Find the ImageView in the list_item.xml layout with the ID list_item_icon ImageView iconView = (ImageView) listItemView.findViewById(R.id.Image); // Get the image resource ID from the current AndroidFlavor object and // set the image to iconView if(currentWord.hasImage()) { iconView.setImageResource(currentWord.getImageResourceId()); iconView.setVisibility(View.VISIBLE); } else{ iconView.setVisibility(View.GONE); } //Adding Color to the list items View textContainer = listItemView.findViewById(R.id.text_container); int color = ContextCompat.getColor(getContext(), mColorResourceId); textContainer.setBackgroundColor(color); //Adding the audio files to each list item and making them play onClick LinearLayout clickItem = (LinearLayout) listItemView.findViewById(R.id.item); clickItem.setOnClickListener(new View.OnClickListener() { MediaPlayer mediaPlayer = MediaPlayer.create(getContext(), currentWord.getAudioResourceId()); @Override public void onClick(View view) { mediaPlayer.start(); } /** * Clean up the media player by releasing its resources. */ private void releaseMediaPlayer() { // If the media player is not null, then it may be currently playing a sound. if (mediaPlayer != null) { // Regardless of the current state of the media player, release its resources // because we no longer need it. mediaPlayer.release(); // Set the media player back to null. For our code, we've decided that // setting the media player to null is an easy way to tell that the media player // is not configured to play an audio file at the moment. mediaPlayer = null; } } }); // Return the whole list item layout (containing 2 TextViews and an ImageView) // so that it can be shown in the ListView return listItemView; }}
Guys I instead of making the MediaPlayer Object inside each activity created it inside the WordAdapter Class and I also set the onClickListener inside it and found that it works completely fine
You can do that but as far as I understand, a new MediaPlayer object will be created for each list item view which won't be so memory-efficient. By declaring it in activities, you create that object just once for each activity and use the same object with different audio files for different list items.
Using the lockdown to learn
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