Android Gridlayout初始化耗时太长
Android Gridlayout初始化耗时太长
提问于 2018-08-09 08:42:49
对于我的一个片段，我有一个非常长的onActivityCreated，因为它必须初始化一个大的网格布局。我没有使用xml，而是以编程方式完成了这项工作，因为在我的生活中，编写代码比使用xml创建108个单独的视图更容易。唯一的问题是:在创建片段时，加载所有内容需要花费很长时间。
我曾尝试使用AsyncTaskLoader，但没有成功，因为您不能使用不同的线程来更改视图。无论如何，请告诉我我可以让它运行得更快或更好。这是我的第一个应用，所以很有可能我真的很傻。任何帮助都是非常感谢的。
另外，我在这段代码中做了很多事情，比如使用媒体播放器和onclicklisteners。所有这些都工作得很好，只是加载片段的速度很慢。这是我的代码：
@Override
public void onActivityCreated(Bundle savedInstanceState) {
if (savedInstanceState == null) {
TextViewCompat.setAutoSizeTextTypeWithDefaults(textTranslation, TextViewCompat.AUTO_SIZE_TEXT_TYPE_UNIFORM);
GridLayout gridLayout = v.findViewById(R.id.grid_layout);
final MediaPlayer[] sound_resource = {MediaPlayer.create(v.getContext(), R.raw.a_sound),
MediaPlayer.create(v.getContext(), R.raw.b_sound), MediaPlayer.create(v.getContext(), R.raw.c_sound),
MediaPlayer.create(v.getContext(), R.raw.d_sound), MediaPlayer.create(v.getContext(), R.raw.e_sound),
MediaPlayer.create(v.getContext(), R.raw.f_sound), MediaPlayer.create(v.getContext(), R.raw.g_sound),
MediaPlayer.create(v.getContext(), R.raw.h_sound), MediaPlayer.create(v.getContext(), R.raw.i_sound),
MediaPlayer.create(v.getContext(), R.raw.j_sound), MediaPlayer.create(v.getContext(), R.raw.k_sound),
MediaPlayer.create(v.getContext(), R.raw.l_sound), MediaPlayer.create(v.getContext(), R.raw.m_sound),
MediaPlayer.create(v.getContext(), R.raw.n_sound), MediaPlayer.create(v.getContext(), R.raw.o_sound),
MediaPlayer.create(v.getContext(), R.raw.p_sound), MediaPlayer.create(v.getContext(), R.raw.q_sound),
MediaPlayer.create(v.getContext(), R.raw.r_sound), MediaPlayer.create(v.getContext(), R.raw.s_sound),
MediaPlayer.create(v.getContext(), R.raw.t_sound), MediaPlayer.create(v.getContext(), R.raw.u_sound),
MediaPlayer.create(v.getContext(), R.raw.v_sound), MediaPlayer.create(v.getContext(), R.raw.w_sound),
MediaPlayer.create(v.getContext(), R.raw.x_sound), MediaPlayer.create(v.getContext(), R.raw.y_sound),
MediaPlayer.create(v.getContext(), R.raw.z_sound), MediaPlayer.create(v.getContext(), R.raw.one_sound),
MediaPlayer.create(v.getContext(), R.raw.two_sound), MediaPlayer.create(v.getContext(), R.raw.three_sound),
MediaPlayer.create(v.getContext(), R.raw.four_sound), MediaPlayer.create(v.getContext(), R.raw.five_sound),
MediaPlayer.create(v.getContext(), R.raw.six_sound), MediaPlayer.create(v.getContext(), R.raw.seven_sound),
MediaPlayer.create(v.getContext(), R.raw.eight_sound), MediaPlayer.create(v.getContext(), R.raw.nine_sound),
MediaPlayer.create(v.getContext(), R.raw.zero_sound)};
String abc = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
List<ImageButton> imageButtonList = new ArrayList<ImageButton>();
final IsPlaying isPlaying = new IsPlaying(null);
final int[] ind = {0};
for (int i = 0, c = 0, r = 0; i < 36 * 3; i++, c++) {
if (c == 3) {
c = 0;
r++;
ind[0] = r;
}
GridLayout.Spec row = GridLayout.spec(r, GridLayout.CENTER);
GridLayout.Spec col = GridLayout.spec(c, GridLayout.CENTER);
GridLayout.Spec col2 = GridLayout.spec(c, GridLayout.LEFT);
GridLayout.LayoutParams layoutParams = new GridLayout.LayoutParams(row, col);
if (c == 0) {
ImageButton imageButton = new ImageButton(v.getContext());
imageButton.setId(ind[0]);
imageButton.setBackgroundResource(R.drawable.ic_play_sound);
imageButtonList.add(imageButton);
imageButtonList.get(ind[0]).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MediaPlayer player = sound_resource[v.getId()];
if (!isPlaying.somethingIsPlaying) {//if nothing is playing
player.start();
isPlaying.mediaPlayer = player;
isPlaying.somethingIsPlaying = true;
} else if (player.isPlaying()) {//if something is playing and player is already playing
player.seekTo(0);
player.start();
} else {//if something is playing and player is not playing
isPlaying.mediaPlayer.seekTo(0);
isPlaying.mediaPlayer.pause();
player.start();
isPlaying.mediaPlayer = player;
isPlaying.somethingIsPlaying = true;
}
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
isPlaying.somethingIsPlaying = false;
mp.seekTo(0);
}
});
}
});
gridLayout.addView(imageButton, layoutParams);
} else if (c == 1) {
TextView textView = new TextView(v.getContext());
textView.setText(String.valueOf(abc.charAt(r)));
textView.setTextSize(27);
textView.setTextColor(v.getContext().getResources().getColor(R.color.main_text_color));
textView.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
gridLayout.addView(textView, layoutParams);
} else if (c == 2) {
ImageView imageView = new ImageView(v.getContext());
imageView.setImageResource(images_resources[r]);
GridLayout.LayoutParams layoutParams1 = new GridLayout.LayoutParams(row, col2);
layoutParams1.leftMargin = 13;
gridLayout.addView(imageView, layoutParams1);
}
}
}
super.onActivityCreated(savedInstanceState);
}回答 2
Stack Overflow用户
发布于 2018-08-09 08:46:42
Stack Overflow用户
发布于 2018-08-09 12:29:03
您可以尝试将回收器视图用作网格视图，并创建自定义的回收器视图适配器。我认为它的工作速度会很快，因为回收器视图只会创建在屏幕上可见的单元格，并有一点偏移。
你可以通过回收器视图here获得关于网格视图的帮助。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51757386
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