[英]Create a template Layout file and add values dynamically to add it to the preferences
I am creating a preferences activity where I am using a fragment to add the preferences. 我正在创建一个首选项活动,在其中我使用一个片段来添加首选项。 I am trying to create a template layout file and somehow add data to the layout file dynamically and add it the preferences.which is not working, any ideas? 我正在尝试创建模板布局文件,并以某种方式将数据动态添加到布局文件中,然后将其添加为preferences。这不起作用,有什么想法吗?
Template xml file- preference_dynamic_layout.xml 模板xml文件-preference_dynamic_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/preference_dynamic_rl"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/kumbai"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="565"
android:background="@color/gray" />
</RelativeLayout>
SettingsFragment.java SettingsFragment.java
public class SettingsFragment extends PreferenceFragment {
PreferenceCategory preferenceCategory;
PreferenceScreen preferenceScreen;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preferances);
preferenceScreen = this.getPreferenceScreen();
preferenceCategory = new PreferenceCategory(preferenceScreen.getContext());
Intent intent = new Intent(getActivity(), GeneratePreference.class);
startActivityForResult(intent, 565);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 565) {
if (resultCode == RESULT_OK) {
int returnString = data.getIntExtra("resID", 0);
int ss = R.layout.preference_notification_title;
preferenceCategory.setLayoutResource(returnString);
preferenceScreen.addPreference(preferenceCategory);
}
}
}
}
GeneratePreference.java GeneratePreference.java
public class GeneratePreference extends AppCompatActivity {
String text = "Kumbaiiii.....";
RelativeLayout relativeLayout;
TextView textView;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.preference_dynamic_layout);
relativeLayout = findViewById(R.id.preference_dynamic_rl);
textView = findViewById(R.id.kumbai);
// textView = new TextView(getApplicationContext());
textView.setText(text);
synchronized (relativeLayout){
relativeLayout.notify();
relativeLayout.notifyAll();
}
// relativeLayout.addView(textView);
Intent intent = new Intent();
Bundle bundle = new Bundle();
bundle.putInt("resID", R.layout.preference_dynamic_layout);
intent.putExtras(bundle);
setResult(RESULT_OK, intent);
finish();
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public int getLayout() {
return relativeLayout.getId();
}
}
layout is added to the preference after running but the values are not updatesd 运行后将布局添加到首选项,但值不会更新
We can use a custom layout and set the values dynamically. 我们可以使用自定义布局并动态设置值。 Use the following XML and make sure to keep the id of the elements the same. 使用以下XML,并确保将元素ID保持相同。 title , summary , icon . 标题 , 摘要 , 图标 。
preference_custom_child.xml preference_custom_child.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:minHeight="?android:attr/listPreferredItemHeight"
android:paddingStart="16dip"
android:paddingEnd="?android:attr/scrollbarSize">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:id="@android:id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"/>
</LinearLayout>
<RelativeLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="6dip"
android:layout_marginEnd="6dip"
android:layout_marginBottom="6dip"
android:layout_weight="1">
<TextView
android:id="@android:id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:fadingEdge="horizontal"
android:fontFamily="@font/questrial_regular"
android:singleLine="true"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="@color/black"
android:textStyle="bold" />
<TextView
android:id="@android:id/summary"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@android:id/title"
android:paddingStart="10dp"
android:layout_alignStart="@android:id/title"
android:fontFamily="@font/questrial_regular"
android:maxLines="4"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@color/grayDark"/>
</RelativeLayout>
<!-- Preference should place its actual preference widget here. -->
<LinearLayout
android:id="@android:id/widget_frame"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
android:gravity="center"
android:orientation="vertical" />
</LinearLayout>
Use, 采用,
.setLayoutResource(R.layout.preference_custom_child);
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.