自己创建一个按钮:
<Button
android:id="@+id/btn_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="******"/>
实现方法:
btn_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
PackageManager packageManager = ContextHolder.getContext().getPackageManager();
Intent intent = packageManager.getLaunchIntentForPackage("******"); //“******”里面填写项目的包名
ContextHolder.getContext().startActivity(intent);
}
});
创建一个类:
//实现Application的Context引用
class ContextHolder {
static Context ApplicationContext;
public static void initial(Context context) {
ApplicationContext = context;
}
public static Context getContext() {
return ApplicationContext;
}
}