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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; | |
} | |
} |
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.
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