- 在任意位置监听Activity的生命周期
- 在任意位置向Activity中新增成员变量（扩展变量）
- 在任意位置请求权限但无需在Activity中重写
onRequestPermissionsResult()方法
build.gradle配置：
dependencies {
implementation 'com.eshel.lib:ActivityLifecycle:1.1'
}- 监听生命周期：
public class DemoView extends View{
public DemoView(Context context){
super(context);
ActivityHelper.registerActivityLifecycle(ActivityHelper.getActivity(getContext()), new ActivityLifecycleAdapter() {
@Override
public void onActivityDestroyed(Activity activity) {
super.onActivityDestroyed(activity);
}
@Override
public void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data) {
super.onActivityResult(activity, requestCode, resultCode, data);
}
});
}
}- 请求权限
public class DemoView extends View{
public DemoView(Context context){
super(context);
Activity act = ActivityHelper.getActivity(v.getContext());
ActivityHelper.registerActivityLifecycle(act, new ActivityLifecycleAdapter() {
@Override
public void onRequestPermissionsResult(Activity activity, int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
String result = "onRequestPermissionsResult() called with: activity = [" + activity + "], requestCode = [" + requestCode + "], permissions = [" + permissions + "], grantResults = [" + grantResults + "]";
Log.i(TAG, result);
}
});
ActivityHelper.requestPermissions(act, new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 2000);
//无需在Activity中重写 onRequestPermissionsResult 方法
}
}- 向Activity添加扩展变量
public class DemoView extends View{
public DemoView(Context context){
super(context);
Activity act = ActivityHelper.getActivity(v.getContext());
ActivityHelper.set(act, "key", "hahahaha");
String hahaha = ActivityHelper.get(act, "key", String.class);
}
}详细使用方法请参考DemoView
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