Android Support Library Media Compat's best practice in Android development
Android Support Library Media Compat's best practice in Android development
introduction:
Android Support Library Media Compat provides a multimedia feature compatible with various Android versions.It enables developers to easily introduce the latest multimedia functions into the old version of Android devices.This article will introduce some best practices to use Android Support Library Media Compat.
1. Introduce the Media Compat support library
Add the following dependencies to the project's Build.gradle file to introduce the Media Compat support library:
dependencies {
implementation 'com.android.support:support-media-compat:28.0.0'
}
Make sure the version number is replaced with the version of the support library you use.
2. Replace the SUPPORT naming space
The Media Compat support library provides a substitute to ensure normal work on devices that do not support the latest API.When using the relevant classes defined in the support library in the XML file, they declare them in the SUPPORT named space rather than the default Android name space.For example:
<android.support.v7.widget.AppCompatImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:srcCompat="@drawable/my_image" />
3. Use AppCompat instead of the default class
The Media Compat support library provides many alternative implementations related to multimedia.Use these alternative implementation to ensure the compatibility of your application on the old version of the device.For example, using the `AppCompatimageView` instead of the default` ImageView` class to ensure that the same multimedia characteristics are used on all devices.
import android.support.v7.widget.AppCompatImageView;
public class MainActivity extends AppCompatActivity {
private AppCompatImageView mImageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mImageView = findViewById(R.id.my_image_view);
// Operate the AppCompatimageView
}
}
4. Use AppCompat features
Media Compat support library also provides some convenient features to help you use multimedia functions.For example, you can use the `AppCompatResources` class to obtain vector images from Drawable and set it as the background of the control.The following is an example:
import android.support.v7.content.res.AppCompatResources;
mImageView.setBackground(AppCompatResources.getDrawable(this, R.drawable.my_vector));
5. Pay attention to compatibility issues
Although the Media Compat support library is very useful when using the latest multimedia features, it does not handle the functions that the device itself does not support.Therefore, pay attention when writing code to ensure that the function used is available on the target device.You can use the `Drawablecompat` class to deal with some related compatibility issues.For example, if you use a vector image on the old version of the device, you may need to use the method to set the color to set the color.
import android.support.v4.graphics.drawable.DrawableCompat;
Drawable drawable = AppCompatResources.getDrawable(this, R.drawable.my_vector);
DrawableCompat.setTint(drawable, Color.BLACK);
mImageView.setImageResource(R.drawable.my_vector);
in conclusion:
Android Support Library Media Compat is one of the best tools to achieve multimedia compatibility in Android development.By using it, developers can easily introduce the latest multimedia functions and ensure the compatibility of applications on various Android versions and devices.Using the best practice mentioned in this article, you can better use the Media Compat support library to provide a consistent experience of multimedia functions.
