两种方式:
1、自己加载小部件列表做选择要显示的小部件
2、调用系统的弹窗做选择要显示的小部件
直接贴代码:
java
public class TempActivity extends FragmentActivity {
private ActivityTempBinding viewBinding;
private AppWidgetManager appWidgetManager;
private AppWidgetHost appWidgetHost;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
viewBinding = ActivityTempBinding.inflate(getLayoutInflater());
setContentView(viewBinding.getRoot());
Context applicationContext = getApplicationContext();
appWidgetManager = AppWidgetManager.getInstance(applicationContext);
appWidgetHost = new AppWidgetHost(applicationContext, 0x200);
appWidgetHost.startListening();
FrameLayout frameLayout = viewBinding.framelayout;
// 方式一:自己加载小部件列表做选择显示
RecyclerView recyclerView = viewBinding.recycler;
List<AppWidgetProviderInfo> installedProviders = appWidgetManager.getInstalledProviders();
MyRecyclerAdapter adapter = new MyRecyclerAdapter(installedProviders);
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
adapter.setListener(v -> {
AppWidgetProviderInfo info = (AppWidgetProviderInfo) v.getTag();
int widgetId = appWidgetHost.allocateAppWidgetId();
AppWidgetHostView appWidgetHostView = appWidgetHost.createView(this, widgetId, info);
int widgetWidth = ViewGroup.LayoutParams.WRAP_CONTENT;
int widgetHeight = ViewGroup.LayoutParams.WRAP_CONTENT;
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(widgetWidth, widgetHeight);
frameLayout.removeAllViews();
frameLayout.addView(appWidgetHostView, params);
Bundle options = appWidgetManager.getAppWidgetOptions(widgetId);
boolean success = appWidgetManager.bindAppWidgetIdIfAllowed(widgetId, info.provider, options);
if (!success) {
startBind(widgetId, info, options);
}
});
// 方式二:使用系统自带的弹窗选择小部件
viewBinding.btn.setOnClickListener(v -> {
int widgetId = appWidgetHost.allocateAppWidgetId();
Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId);
startActivityForResult(pickIntent, 200);
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK && data != null) {
if (requestCode == 100) {
createWidget(data);
} else if (requestCode == 200) {
addWidget(data);
} else if (requestCode == 300) {
addWidget(data);
}
}
}
private void createWidget(Intent data) {
// 获取选择的widget的id
int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
// 获取所选的Widget的AppWidgetProviderInfo信息
AppWidgetProviderInfo appWidget = appWidgetManager.getAppWidgetInfo(appWidgetId);
// 根据AppWidgetProviderInfo信息,创建HostView
View hostView = appWidgetHost.createView(this, appWidgetId, appWidget);
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
viewBinding.framelayout.removeAllViews();
viewBinding.framelayout.addView(hostView, params);
Bundle options = appWidgetManager.getAppWidgetOptions(appWidgetId);
boolean success = appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, appWidget.provider, options);
// 系统调起的总是return false
// if (!success) {
// startBind(appWidgetId, appWidget, options);
// }
}
private void startBind(int appWidgetId, AppWidgetProviderInfo info, Bundle options) {
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_BIND);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER, info.provider);
// This is the options bundle described in the preceding section.
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS, options);
startActivityForResult(intent, 300);
}
// 添加选择的widget。需要判断其是否含有配置,如果有,需要首先进入配置
private void addWidget(Intent data) {
int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
-1);
AppWidgetProviderInfo appWidget = appWidgetManager.getAppWidgetInfo(appWidgetId);
Log.d("AppWidget", "configure:" + appWidget.configure);
if (appWidget.configure != null) {
// 有配置,弹出配置
Intent intent = new Intent(
AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
intent.setComponent(appWidget.configure);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
startActivityForResult(intent, 200);
} else {
// 没有配置,直接添加
onActivityResult(100, RESULT_OK, data);
}
}
}
注意,Activity一定不能继承AppCompatActivity,他会将小部件内部的控件都改写成了AppCompatXXXX,导致小部件不能显示。