Use the@Material/Feature Targeting framework in the Java library for target positioning
Use the@Material/Feature Targeting framework in the Java library for target positioning
@Material/Feature Targeting is a framework for target positioning in the Java library.It can be presented to users according to different devices, operating systems and other conditions to provide users, thereby providing a better user experience.
To use the@Material/Feature Targeting framework in the Java class library, the following steps are required:
1. Install@Material/Feature Targeting Framework: Add@Material/Feature Targeting to the Java project, or download it and add it to the project path.
2. Introduction Class: Add related import statements to the top of the Java file to use the class and interfaces of@Material/Feature Targeting framework in the code.
3. Create target positioning rules: Use the class and methods provided by@Material/Feature Targeting framework to create target positioning rules.You can choose different conditions and parameters as needed, such as device type, screen size, operating system version, etc.
For example, the following code shows how to create a simple target positioning rule to select the appropriate function according to the equipment type:
import com.google.android.material.feature.targeting.TargetingConditions;
import com.google.android.material.feature.targeting.ViewFeature;
import com.google.android.material.feature.targeting.FeatureTargeting;
TargetingConditions targetingConditions = new TargetingConditions();
targetingConditions.addCondition(TargetingConditions.TARGET_DEVICE, TargetingConditions.DeviceType.MOBILE);
ViewFeature mobileFeature = new ViewFeature("Mobile Feature", R.layout.mobile_layout);
ViewFeature defaultFeature = new ViewFeature("Default Feature", R.layout.default_layout);
FeatureTargeting featureTargeting = new FeatureTargeting(targetingConditions, mobileFeature, defaultFeature);
In the above example, we have created a target positioning rule to select different functions according to the equipment type.If the device type is a mobile device, it will use the function called "Mobile Feature", and its layout resource is R.Layout.mobile_Layout.Otherwise, the function called "Default Feature" will be used, and its layout resource is R.Layout.Default_Layout.
4. Application Objective Positioning Rules: Apply the target positioning rules to a view or component that needs to be located.You can use the method provided by the@Material/Feature Targeting framework to apply the target positioning rule to the view, such as calling featuretargeting.applyfeature (youView).
The following is an example that shows how to apply the target positioning rules to a custom view:
import com.google.android.material.feature.targeting.FeatureContext;
FeatureContext featureContext = new FeatureContext();
featureTargeting.applyFeaturability(yourCustomView, featureContext);
In the above example, we created a FeatureContext object and applied the target positioning rules to the custom view viewing view.The target positioning rules will determine which function to use through the context information provided by the FeatureContext object.
By using@Material/Feature Targeting framework, developers can locate functions and styles according to different conditional positioning to provide a better user experience.You can adjust and customize the target positioning rules according to the specific project needs and scenes to achieve more accurate target positioning.